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Text

Detailed Control Room Design Review, Summary Rept
	ML17214A549
Person / Time
Site:	Saint Lucie
Issue date:	10/31/1983
From:	; FLORIDA POWER & LIGHT CO.
To:	;
Shared Package
ML17214A548	List: ML17214A547; ML17214A549;
References
	RTR-NUREG-0700, RTR-NUREG-0737, RTR-NUREG-700, RTR-NUREG-737, TASK-1.D.1, TASK-TM NUDOCS 8311080246
	Download: ML17214A549 (619)
	v • d • e

SUMMARYREPORTDETAILEDCONTROLROOMDESIGNREVIEWOFTHEPLANTST.'LUCIEUNIT1NUCLEARPOWERSTATIONDOCKET50-335PREPAREDBY:FLORIDAPOWERANDLIGHTCOMPANYOCTOBER1983(8311~~()g()()@gagPDRADOCKPggp~i0@lNNHQPR (tnn4~<<'v TABLEOFCONTENTS1.0METHODOLOGYPAGE1.11.21.31.41.5OverviewReviewProceduresDocumentandDocumentControlTechnicalApproachAssessmentandImplementation14815152.0FINDINGS/RESULTS202.12.22.32.4EquipmentInventoryOperatorInterviews/OperatingExperienceReviewsSurveys2.3.1Noise2.3.2Lighting.2.3.3Environment2.3.4ControlsandDisplays2.3.5Conventions2.3.6ProcessComputer2.3.7EmergencyGarments2.3.8Labels2.3.9Annunciators2.3.10Anthropometry2.3.11Force/Torque2.3.12Communications2.3.13MaintainabilitySystemFunctionandTaskAnalysis2.4.1Identify/ReviewSystems,Functions,andTasks2.4.2AnalyzeTasks2.4.3VerifyTaskPerformanceCapability/HumanEngineeringSuitability2.4.4ValidateControlRoomFunctions2.4.5Results/Findings202343444852576669768189921111131171231231251261281293.0IMPLEMENTATION1323.1DevelopBackfitSchedules3.1.1Phase3-EnhancementandandDesignSolutions3.1.2.AnalysisofCorrectionbyEnhancement~3.1.3.AnalysisofCorrectionbyDesignAlternative3.1.4.ExtentofCorrection132132132133133 t'r~fr,)<A"'C~llt'pgaf'16LI'lQ'1Lh(lk'QP~eiiAQg)i,flIsaJ)If54Qe<<hzaaPi)Cg$fN()Q$)f)~tt.4gLsrc>>C TABLEOFCONTENTS3.23.33.43.5HumanEngineeringBackfitProgram3.2.1Labeling3.2.2Demarcation3.2.3AnnunciatorReview3.2.4CodingConvention3.2.5EngineeringIntergrationReview3.2.6AdministrativeandTrainingWrittenJustification/NoCorrectiveActionIntended3.3.1LowErrorAssessment3.3.2InvalidFindingsCompletedBackfits3.4.1CompletedEnhancements/DesignSolutions3.4.2ScheduledCompletiondatesforStandarizedBackfitSolutionsImplementationProgramTrackingSystem3.5.1InventoryControl3.5.2StatusUpdates3.5.3OpenItemListDevelopment3.5.4ProjectHistory3.5.5ProgramIndexandListingPAGE138138140141142143150152152239248248250251251251251252252APPENDIX1ComputerOutputofAllHumanEngineeringDeficienciesAPPENDIXAChecklistofNUREG-0700CriteriaUsedFortheSt.LucieUnit1DCRDR I4~pic'",0t.'lf::L'tl.c.ac9-'.rI~(~,;II'I11II~1't.tgcI~4e~IJ,~ciI5(,(II~V','.//J~.E.~~

1.0METHODOLOGY1.1OverviewThisreporthasbeenpreparedinresponsetoNUREG-0737item1.D.1anddetailsthemeansbywhichaDetailedControlRoomDesignReviewwasconductedfortheSt.Lucie,Unit1NuclearPowerPlantownedandoperatedbytheFloridaPowerRLightCompany.ThereviewwasconductedusingNUREGs-0700and-0801,andspannedtheperiodfromJuly1981toJuly1983.Thereviewwasconductedinfourphases,asfollows:oPreparationofareviewplanningdocumentwhichdiscussesReviewmethodologiesReviewdocumentationStatus,personnelqualifications;andprojectorganizationAssessmentandprioritizationofdiscrepanciesReporting(findings,assessment,andschedules).Phase2-ControlRoomReview.Thisrepresentstheperiodinwhichdata'<<'ollection,reduction,andanalysiswasconducted,resultinginHuman'ngineeringDiscrepancyreportsanddraftreports.Phase3-EnhancementRDesinSolutions.HumanEngineeringDiscrepancieswerecollated,alternateenhancementsanddesignsolutionsweregene-.-'ated,andtheresultswereconsideredintrade-offs.Phase0-~Reortin.Backfitschedulesanddetailedcontrolroomdesignreview..resultswillbeprovidedtotheNuclearRegulatoryCommission.'.Figure1-1shows,ingeneral,thephasesandtaskflowfortheDetailedControlRoomDesignReview.Abriefdiscussionoftheactivitiesconductedineachphaseofthereviewfollowsthisfigure.TheDetailedControlRoomDesignReviewwasconductedusingtheNUREG-0700guidelines.Planning,staffing,technicalapproach,andprioritiza-tionwereconductedinaccordancewiththeguidelinesasstatedinNUREG-0700.ThepresentDetailedControlRoomDesignReviewreportcloselyfollowstheoutlinerecommendedinSection5.2ofNUREG-0700.Specifically,thisfinalreportdiscusses:oTheDetailedControlRoomDesignReviewphasesoThetechnicalactivities.reviewofoperatingexperienceassemblyofcontrolroomdocumentationsystem/function/taskanalysisconductofcontrolroomsurveysverificationoftaskperformancecapabilityvalidationofcontrolroomfunctions 4~l>qh~dtII.,(\IVhv4IVIP~~I~~VhVC'.'I"r~'~hr~\~~~'hr~~IIVn.rI1rf.~'lf.v4r~rfmU44~C~~II4~VI~IvrVIIy'I4VIVI<<IIfr~VIA4=.d4~II\4fh4r+h"t'4 PHASEIICRAEVIEWPHASEIIIASSESSMENTANDDESIGNSOLUTIONSPHASEIVREPORTINGREVIEW.OPERATINGEXPEAIENCESYSTEMFUNCTIONSANDTASKANALYSISVEAIFYTASKPERFOR-MANCECAPABILITYDEVELOPFINALREPORTDEVELOPPROGRAMPLANASSESSDISCRE-PANCIESANALYZEANDSELECTCORRECTIVEACTIONASSEMBLECONTROLROOMDOCUMEN.TATIONCONDUCTCONTROLROOM'UAVEYSVALIDATECONTROLROOMFUNCTIONSDEVELOPBACKFITSCHEDULE.FlGURE-.2.'The:four.phasesand.thetaskflowlrelationshipsof.theCR,review.

r'ki'.s")r~>~~ES~Lit$dL)CH0 oMethodofassessmentofdiscrepanciesoMethodofidentificationandselection'ofenhancementanddesignsolutionsoReviewresultsofHumanEngineeringDiscrepancie's,HumanEngi-'eeringDiscrepancyAssessment,andtheselectedenhancementanddesignsolutionswillbeorganizedintothefollowinggroups:surveyfindings(annunciator,communications,etc.)taskanalysisfindings(panel/workspace)humanfactorsengineeringsuitabilityandvalidationoffunctions'indings(controlroomtraffic,workloaddistribution,andman/machinefunctionalallocations)oImprovementstobemadeenhancements/justification/extentofcorrectiondesignalternative/justification/extentofcorrectionoScheduleofimplementation.

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1.2ReviewProceduresThissectionpresents,ingeneralterms,thereviewproceduresemployed.InSection2.0,Findings,detaileddescriptionsoftheproceduresemployed,andresultsofeach,arepresented.1.2.1Phase2-ControlRoomReviewTheControlRoomReviewphasewassubdividedintosixsubtasksasfollows:oReviewofOperatingExperienceoAssembleControlRoomDocumentationoReviewofSystemFunctionsandTaskAnalysisoControlRoomSurveysoVerifyTaskPerformanceCapabilityoValidateControlRoomFunctions.1.2.1.1ReviewofOperatingExperience-Thistaskwascomposedoftwosubtasks:1)conductofoperatorinterviews,and2)reviewofplantoperationalexperiencethroughLicenseeEventReports,technicalspecificationmodifications,etc.ThisreviewtaskwasconductedinaccordancewiththeguidelinesofNUREG-0700publishedSeptember1981.1.2.1.2AssembleControlRoomDocumentation-Inthistask,acontrolroomdatabasewasestablishedtosupportsubsequentevaluation.Alibrarywasestablishedwithcontrolroomrelateddocumentation(technicalspecifications,drawings,etc.),controlroomcomponentswerephoto-documented,anda1/3scalephotomosaicwasconstructed.Thelibraryandphoto-documentationwerecentrallylocatedtosupporttheeffort.Inadditiontothelibraryandphotographicdocumentation;acontrolroominventoryofcomponentswasdeveloped,identifyingforeachcomponent,itslocation,systemrelation-ships,functions,andcharacteristics.Inventorydatahasbeenfiledforsubsequentuse.1.2.1.3ConductControlRoomSurveys-Muchofthedetailedassessmentofthecontrolroomwasconductedviasurveys.Surveysrequiredthecollectionofdatausingpreconstructedchecklists,interviewforms,andthetakingofdirectmeasurementsofcontrolroomparameterssuchasnoiselevels,lightlevels,etc.ThesourceofthesurveycriteriaisfoundinNUREG-0700.Foreachsurvey,adraftreport(summarizingHumanEngineeringDiscrepancies)waspreparedforsubsequentinclusionintothepresentfinalreport.Thesurveysconductedwere:oNoise-directmeasurementsofnoiselevelsweretakenandcom-paredtoindividualchecklistsitems.

%0'5~J~w.gypipg~g))~~ai'!"9<i'("r>fr'.'.'-"~"'1L/sv'rg.~~owl','J~'4It1p,~s*~r0r<i~~.~('te-'~i"r~4~IIijIIPff 000000000Lighting-measurementsweretakenundervariousconditions(e.g.,normalandemergencylighting)andcomparedtoindividualNUREG-0700items.ControlRoomEnvironment-assessmentsweremadebydirectmeasurementoftheparameters(listedbelow)andcomparedto'hedataintheNUREG-0700guidelines.temperaturehumidityventilationworkspacearrangementdocumentorganization,use,andstoragecontrolroomaccessDesignConventions-evaluationsbysurveyfortheconventionslistedbelow.ThedatawassubsequentlycomparedtoNUREG-0700guidelines.Icodingmethods(color,shape,pattern,etc.)standardizationofabbreviationsandacronymsconsistencyofcontroluseconsistencyofdisplaymovementorindicationControls-checklistevaluationofcontrols.Displays-checklistevaluationofdisplays.Computers-checklistevaluationofcomputersystems.EmergencyGarments-datawerecollectedbywalk-throughs,useofemergencygarments,speechintelligibilityanalysis,andchecklist,application.Labeling-checklistevaluationoflabels.Annunciators-checklistevaluationofannunciatorsystems;,directmeasurementofannunciatorfonts,signalintensities,etc.Anthropometrics-analysisofreachandvisualaccesstocontrolroomcomponentsgivenphysicalconfigurationofboards,panels,layout,etc.Thedatawassubsequentlycomparedtochecklistitemrequirements.Force/Torque-whereindicatedbyoperatorobservation,force/torqueinformationforcontroltypeswerecollectedforcomparisontochecklistitems.Communications-checklistevaluationofcommunicationssystems;speechintelligibilityanalysisofcommunicationsmodesMaintainability-checklistandquestionnairedataconcerningoperator-maintainedcomponents(trendrecorders,bulbs,etc.).1.2.1.0ReviewofSystemFunctionsandTaskAnalysis(SFTA)-Systemfunctionsandtaskswereidentifiedandevaluatedinthistask.A0-stepprocedurewasemployed:oIdentificationofsystemsandsubsystemsbyreviewofplantdocumen-tation CI>pC)I~<4+<<IgIIJ\lt~I~1~gio,fr.1C~~('lt~'/~I"~L~!1t'CC'1ll~4l4 oIdentificationofeventsequencestoundergoTaskAnalysis.Thesewereidentifiedusing:NUREGs-0737,-0660,and-0700resultsofOperatingExperienceReviewoIdentificationofsystem/subsystemfunctionsthroughdocumentreviewandoperatorinterviewsoIdentificationandanalysisofcontrolroomoperationaltasks.Taskanalysisdataservedasaninputtotheverificationoftaskperformancecapabilityandthevalidation.ofcontrolroomfunctions(seeparagraphs1.2.1.5and1.2.1.6).Theresults/productsofthistaskwere:oResponseSelectionDiagramsoTaskanalysisoffunctionalsequencesoTaskanalysisofeventsequencesoSpatial-OperationalSequenceDiagramsoftasksequences/oTrafficPatternDiagrams.1.2.1.5VerifyTaskPerformanceCapability-Thisevaluationtaskinvolvedtwosubtasks:1)verificationofinstrument/control'availability,and2)verificationofhumanengineeringsuitability.Thefirst,verificationofavailabiilty,wasconductedusingtheTaskAnalysisandControlRoomInventory.Ingeneral,tasksassociatedwithcontrolroomfunctionswereexaminedintermsofappropriateinstrumentationinthecontrolroom(i.e;,.taskequipmentdemandsvs.actualequipmentpresentinthecontrolroom).Estimatesofthefrequency-of-useforallinstrumentationwerethengeneratedbasedonthesetofproceduresexamined.Estimationsofnonprocedurally-boundoperations(e.g.,boration,etc.)weregene-ratedviaoperatorinterviews.Also,tasksequencesrequiredinselectedeventsequences.wereestimatedastofrequencyofoccurrenceintheeventsequences.Comparingbothfrequencyandrequirementsdatatotheinventory,identificationwasmadeof:1)theabsence(inthecontrolroom)oftask-requiredinformationorcontrol,2)theestimatedfrequencywithwhichtheinformationorcontrolisrequired,and3)theconditions(events,procedures,etc.)underwhichtheinformationorcontrolisrequired.Thesecondsubtask,verificationofhumanengineeringsuitability,involvedusingSpatial-OperationalSequenceDiagrams,TrafficPatternDiagrams,identifiedfunctionalgroups,andcheckliststoevaluatehumanengineeringsuitabilityintermsofsequenceofcomponentuse,control/displayproximity,andsoforth.TheNUREG-0700guidelinesservedasthesourcedocumentforevaluationcriteria.

p 1.2.1.6ValidateControlRoomFunctions-Thistaskinvolvedanalysisofworkloadanddistributionofworkloadforoperatorsforspecifictaskandeventsequences.Overallcontrolroomtrafficwasalsoanalyzed.Themeansoftheanalysisweretasktimelinesandtrafficanalysis.Checklistswereusedtoaidvalidationofcontrolroomfunctions.

,*4A]~~pI,I~rI~rl~~p 1.3DocumentationandDocumentControlThreetypesofdocumehtationwereaddressed:I)referencedocumentation,2)processandHumanEngineeringDiscrepancydocumentation,and3)DetailedControlRoomDesignReviewoutputfindingsandreports.1.3.1ReferenceDocumentationAprogramlibrarywasestablishedwithreferencedocumentstosupporttheDetailedControlRoomDesignReviewtasks.Itcontains:FinalsafetyanalysisreportsTechnicalspecificationsandsystemdescriptionsPipingandInstrumentationDiagramsFloorplansPaneldrawingsandphotographsSoftwaredescriptionsProceduresSamplesofcomputerprintoutsVariousNuclearRegulatoryCommissionandindustrydocumentsbearingoncontrolroomdesign(i.e.,NUREGs-0700and0660,IEEEspecificationsandstandards,humanfactorsengineeringtexts,etc.).Asrequired,thisdocumentationwasreferencedtosupportspecifictaskswithinthecontrolroomevaluations.1.3.2ProcessDocumentationDatacollectionandreductionmethodsweredocumentedforreportingpurposes.ThegeneralflowofinformationmanagementispresentedinFigure1-2.Taskplansservedasthebasicprocessdocumentation.1.3.3GuidelineHumanEngineeringDiscrepancyDocumentationDatafilesforeachHumanEngineeringDiscrepancyweregenerated.Foreachtaskrequiringareport,filespacewasreservedforthatreport.HumanEngineeringDiscrepancyinformationwasstoredinacomputerfilewhichcontainsthefollowinginformation:oGuidelinenumber,whichalsoservesastheHumanEngineeringDis-crepancynumber>oHumanEngineeringDiscrepancydescription

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FIGURE0-2INFORMATIONMANAGEMENTDATACOLLECTIONPROCEDURE1ATACOLLECTION.,~~~~,,DATACOLLECTIONPROCEDURE2~.PROCEDURENCOLLECTDATACOLLECTDATA~~~Q4~44COLLECTDATAIDENTIFYHEDsHIDENTIFYHEDs4~i444eIDENTIFYHEDsDOCUMENTDOCUMENT~~~4~~~~~DOCUMENTFILE(MANUAL)&ADP)FILE(MANUAL~~~~~~FILE(MANUAL'ADP)&ADP)ASSESSHEDsUPDATEFILESIDENTIFYRESOLUTIONSUPDATEFILESDEVELOPSCHEDULESIRESOLUTIONSREPORT 2r oHumanEngineeringDiscrepancyassessmentoHuman'ngineeringDiscrepancylocations(componentswhicharediscrepantfromtheNUREG-0700guidelines)oActiontobetakenontheHumanEngineeringDiscrepancy.Figure1-3presentstheHumanEngineeringDiscrepancyformatused.1.3'omponentHumanEngineeringDiscrepancyReportsAmanuallymaintainedfilewasestablishedwhichdocumented,foreachcomponent,HumanEngineeringDiscrepanciescitedagainstthatcomponent.Inaddition,theheaderforeachComponentLevelHumanEngineeringDiscrepancycontainsthefollowingControlRoomInventoryinformation:.oPanel/workstationoUnique,locationcodeoSystemrelationshipoComponentfunctionanduseoComponenttypeandcharacteristics.TheHumanEngineeringDiscrepanciesnotedagainstacomponentare,whereappropriate,listedonthebottomoftheformbyHumanEngineeringDiscrepancynumber(whichcorrespondstoNUREG-0700guidelinenumber).TheComponentLevelHumanEngineeringDiscrepancyformusedispresentedinFigure1-0.1.3.5TaskReportsForeachsurvey,aseparatereportsectionhasbeengenerateddetailing:oObjectivesofthesurveyoActualdatacollectionandanalysismethodsemployedoCriteria(guidelines)implementedoSummaryoffindings.Inshort,theprocessfollowedforeachsurveyorevaluation,frominceptiontowritingofHumanEngineeringDiscrepancies,hasbeendocumented.1.3.6FilingSystemTheDetailedControlRoomDesignReviewFilingSystemisstructuredasfollows:oHumanEngineeringDiscrepanciessequencedbyfilenumber10 y~w~Ir FIGURE/-3HUMANENGINEER!NGD!SCREPANCYREPORTNO:REVIEVfERNAME:a)HEDTITLE:PLANT.UNIT'ATE:.b)ITEMSINVOI.VED:ITEMTYPENOMENCLATURELOCATIONPHOTONO.c)PROBLEMDESCRIPTION(GUIDELINESVIOLATED):d)SPECIFICOPERATORERROR(S)THATCOULDRESULTFROMHED:

VAQ\*~8~:A"4 FlGURE1-3e)SUGGESTIONSFORPOTENTIALBACKFITSf)ESSEXREVIEWDATACOLLECTORDATACOLLECTIONMGRPROGRAMMGRDATEDATEDATE0)DISPOSITIONClFURTHERREVIEWBYC3TOBECORRECTEDBYDREFERTOOPERATIONSClNOACTIONC3OTHERDATEDATEEVALUATIONCOMPLETEDPSE&GPROJECTDIRECTOR12DATE fI' FIGUREt-4COMPONENTREPORTHUMANENGINEERINGblSCREPANCYREPORTCDMI'DIEITjslIADELASCDCIATEDEDNFI4EITDESICIIATIDIIEWE2~ASTIEDCCODELIDE0SUBSYSTEM:CONTROLMODESIOISPLAYRANGE:USE'EDNUMBERCATHEONUMBERCAT13

oComponentsheetsfiledbypanel(e.g.,RTGB101,RTGB102,etc.)andsequencedbylocationcodeoTaskAnalysisVolumesIandII-SystemFunctionandPart-TaskAnalysisVolumeIII-FunctionalSequences,TrafficAnalysis,Timelines,andV/orkloadEstimations.oChecklistsanddataformsprovidedasAppendixAtothissummaryreport.

1.0TechnicalApproachThetechnicalapproachemployedisbrieflyintroducedinthissection.Detaileddiscussionsofreviewmethodologiesar'epresented'inSection2.0,Findings,wheretextisprovidedwhichdescribestheactivities.forthefollowingtasks:oReviewofoperatingexperienceoReviewofsystemfunctionsandtaskanalysisoSurveysnoiselightingenvironmentdesignconventionscontrolsanddisplayscomputersemergencygarmentslabelingannunciators-anthropometricsforce/torquecommunicationsmaintainabilityoVerificationoftaskperformancecapabilityoValidationofcontrolroomfunctionsoAssessmentofdiscrepancies.Eachsurveyreportaddresses:oTaskObjectives-Thetypeofdatato.becollectedorhumanperformancevariablesunderanalysis.oReviewTeam-Thepersonnelrequiredtoconductthetask.oCriteria-Generally,theNUREG-0700evaluationguidelinesappro-priatetothe'evaluationbeingconducted.oTaskDefinition-Stepsorproceduresfollowedintheconductofthetask.oOutputsandResults-Taskresults.TheseareHumanEngineeringDiscrepancieswhichmaybedrawnuponbysubsequenttasks(e.g.,TaskAnalysis).1.5AssessmentandImplementationOnceaHumanEngineeringDiscrepancywasidentified,itsdispositionhadtobedetermined.Thissectionofthesummaryreport:1)describesthemeanswherebyHumanEngineeringDiscrepancieswereassessedforerror-inducingpotentialandsystemconse-quencesofinducederrors,and2)detailsthemeansbywhichHumanEngineeringDiscrepancieswillbedisposedof(redesign,additionalGobPerformanceAids,etc.)The15 00 assessmentportion,inessence,determinestheschedulingofbackfitsasafunctionofthepotentialconsequencesoftheHumanEngineeringDiscrepancy.ThedispositionportiondeterminesthemeansbywhichaHumanEngineeringDiscrepancywillbeameliorated.Assessmentisinitiallydivorcedfromdispositionintermsofselectionofbackfits;however,HumanEngineeringDiscrepancydispositionmay,insomeinstances,driveschedulingofbackfitsduetoavailabilityofmaterials,extentofengineeringredesign,andsoforth.Also,candidatebackfitsundergoassessmenttoensurethathumanengineeringdiscrepancieshavebeenadequatelyaddressed.1.5.1AssessmentThebasicassessmentprocessisdividedintofoursteps,asfollows:oAssessextentofdeviationfromNUREG-0700guidelinesoAssessHumanEngineeringDiscrepancyimpactonerroroccurrenceoAssesspotentialconsequencesoferroroccurrenceoAssignHumanEngineeringDiscrepancyschedulingpriority.AHumanEngineeringDiscrepancyAssessmentFormandaLogicDiagramarepresentedinFigure1-5.1.5.1.1AssessExtentofDeviationfromNUREG-0700Guidelines-ThissteprequiredthatasubjectiveassessmentoftheextentofdiscrepancyfromNUREG-0700guidelinesbe,madewithregardtothecontrolroom.Forexample,symbol/backgroundcontrastmightbe00percentratherthan50percent,or,onlysmallamountsofparallaxmayexistinadisplay.Ajudgementwasmadebasedonthecontentoftheguidelinebeingappliedandthe.controlroomcomponentunderassessment.Extentofdeviationwassubjectivelyscaledfrom"1"(somedeviation)to"5"(completedeviation).TherewasalsoacatagoryN/A(notapplicable)forHumanEngineeringDiscrepancieswhicharenotapartofNUREG-0700(discrepanciesfromotherdocumentssuchasmilitarystandards,humanfactorsengineeringtexts,etc).Extentofdeviationjudgementsarenotdirectlyusedtoassesspriorityorschedulingofbackfits,butrelatetoassessmentofoperationalerrorpotentials.Itispossibletohavelittledeviationfromtheguidelinesandhigherrorassessments,andviseversa.1.5.1.2AssessHumanEngineeringDiscrepancyImpactonErrorOccurrence-Giventhatnocontrolsystemcanbedesignedtobeoperationallyerror-free,theassessmentherewastoestimateHumanEngineeringDiscrepancyimpactonhypothetical(unknown)baselineerrorratesofcontrolroomcomponents;e.g.,willadditionalerrorsbe.16 inducedbydiscrepanciesfromtheguidelines?EstimatesofHumanEngineeringDiscrep-ancyimpactonerroroccurrencewerequalitativelyarrivedatbyconsiderationofthefollowing:oBodyphysiologyfatigue/physicalstressdiscomfortinjuryanthropometryoSensory/perceptualperformancevisionauditionpropioceptiontouchoInformationprocessingoverload.confusionrecallpatternmatching/recognitiondatamanipulation(comparing,extrapolating,etc.)oLearning,inhibitionhabituationresponsepredominancetransferresponsecompetition-responselatencyoTaskdemandsfrequencydurationcompetitionsequencespeedcommunicationprecisioninformation.1.5.1.3AssessPotentialConsequencesofErrorOccurrence-Reviewteam,tech-nicalstaff,andoperationsrepresentativesevaluatedsystemconsequencesofhypothesizedoperationalerrors.Fourdeterminations'arerequired:oDoestheHumanEngineeringDiscrepancyrelate,toplantsafetyfunctions?oDoestheHumanEngineeringDiscrepancyrelatetoplantfunctionsrequiredtomitigatetheconsequencesofanaccident?oCouldanerrorleadtounsafeoperationsorplantconditions?oCouldanerrorleadtoviolationsoftechnicalspecifications?17 Eachoftheserequiresayes/notyperesponse.TheLogicDiagramonFigure1-5(HumanEngineeringDiscrepancyPriority)showshowthesedataareintegratedtoassigncategoriesandprioritiestoHumanEngineeringDiscrepancies.NotethatCategoryIHumanEngineeringDiscrepanciesarethosewhichhavebeennotedfromdocumentedoperationalerrors.AllCategoryIHumanEngineeringDiscrep-anciesaredeemedtoincreaseerrorpotential,butconsequencesmuststillbeassignedtodetermineultimateschedulingpriority.CategoryIIHumanEngineeringDiscrepanciesarethoseidentifiedthroughconduct'ofsurveys,etc.,whicharedeemedtocontributetotheinducementofoperationalerrors.Priority,withinCategoryIIisafunctionoferrorconsequenceaftererroroccurrence.CategoryIIIHumanEngineeringDiscrepanciesarethosedesignswhichdeviatefromNUREG-0700guidelines,butduetothecontextoftheSt.LucieUnit1ControlRoom,little,ifany,additionalerrorinducementisanticipated.Assessmentoferroroccurrencewasestimatedforthefollowing:oOveralloperatorperformanceis/isnotdegradedbytheHumanEngineeringDiscrepancyimpactonbodyphysiology?oTheHumanEngineeringDiscrepancydoes/doesnotdegradesensoryperformance?oInformationprocessingcapabilityis/isnotexceededviatheHumanEngineeringDiscrepancy?'TheHumanEngineeringDiscrepancydoes/doesnotinducedirecterrorduetoprinciplesoflearning?oTaskdifficultyandreliabilityis/isnotaffectedbytheHumanEngineeringDiscrepancy?Basedontheabove,asubjectiveerrorassessmentwasgeneratedona5-pointscale;"1"indicatingalowprobabilityofinducederrorsisexpectedasaresultoftheHumanEngineeringDiscrepancy,and"5"indicatingahighprobabilityofadditionalerrorsbeinginduced.1.5.1.0AssignHumanEngineeringDiscrepancyPriorityScheduling-Priorityforschedulingofbackfitwasassignedperthefollowing:oPriorityA-Prompt-firstoutage,givenavailabilityofmaterialsandengineeringleadtime.'PriorityB-NearTerm-secondrefuelingoutagegivenavailabilityofpartsandengineeringleadtime.oPriorityC-LongTerm-atanytime.

eFtGURE1.5HEDASSESSMENTFORM1.EXTENTOFDEVIATIONFROMOT00GUIDELINES/AMP~:123I52.ERRORASSKSSMKNT~IG2$i52.SAFETYFUNCTION?NONONSAFETYRELATED,REOUIRKDTOMITIGATECONSEOUKNCKSOFANACCIDENTNOS.CONSEOUENCKSOFERROROCCURENCKeAUNSAFEOPERATIONLVIOLATIONOFTECH.SPECS.YESNONO1.DEVf0?NOFILEHEDYES2.ERRORNOASSESSMENT2?CATEGORYIIIHEDTAYESTAeCATEGORYII~CHEDTECHSPECVIOLATEDORUNSAFEOPERATIONYESS.SAFETYNOFUNCTIONOROBJECTIVE?TECHSPECVIOLATEDORCATEGORYII,CUNSAFEHEDOPERATION%YESCATEGORYIIAHED19YESCATEGORYIIBHED 2.0FINDINGSThissectionpresentsresultsandfindingsoftheDetailedControlRoomDesignReview.Section2.1discussestheEquipmentInventory.Section2.2presentsfindingsfortheOperatingExperienceReview.Section2.3presentsfindingsandresultsoftheControl/RoomSurveys.Finally,Section2.0discussestheSystemFunctionsandTaskAnalysisfindings.V/hereapplicable,allHumanEngineeringDiscrepanciesidentifiedviatheevaluationprocessesarepresented.2.1EquipmentInventory2.1.1ObjectiveTheobjectiveoftheEquipmentInventorywastoidentifyandreferenceallinstrumentationcontrolsandequipmentwithinthecontrolroomfor:1)assessmentoftaskequipmentdemands,2)ComponentLeVelHumanEngineeringDiscrepancydocumen-tation,and3)priorityassessment.Theinventoryincludedallcomponentsandmajorassemblieswithwhichoperatorsinterfaceinthemaincontrolroom.2.1.2ReviewTeamResponsibilitiesAhumanfactorsspecialistwithcontrolroomoperatingexperienceassembledtheEquipmentInventoryusingtheformpresentedinFigure1-0.(Oneformwascompletedforeachcomponentormajorassembly).2.1.3CriteriaCriteriaforthistaskincluded:oTheinventoryshouldincludeallcontrols,displaysandothercom-ponentsonthecontrolboards,peripheralconsoles,backpanels,etc.-thatis,thecomponentswithwhichoperatorsinterfaceatallworkstations.(NUREG-0700,p.3-19).oEachcomponentshouldhaveauniqueidentifier(NUREG-0700,p.3-20).oTheinventoryshouldidentifythesystem,subsystem,function/sub-function,purpose,andcharacteristics(rangeforscaleddisplays,colorsforindicatorlights,andpositionlabelsforcontrols)foreachcomponent(NVREG-0700,p.3-19).20 2.1.0TaskDefinitionAphotomosaicofthecontrolroomwasusedasthebasisformostoftheinventorywork.Becausethepanelsarelong,theyweredividedintosectionsforthepurposeofassigningalphanumericidentifiers.Theconsoleconsistedofthefollowingsections:oRTGB101PlantElectricalDieselGeneratorsTurbineGeneratorCondenseroRTGB102MainFeedwaterAuxiliaryFeedwaterCirculatingWaterSteamPumpsoRTGB103ReactorCoolantPumpsPressurizeroRTGB100NuclearControlNuclearInstrumentationoRTGB105ChemistryControlVolumeControlWasteManagementoRTGB106EngineeredSafetyFeatureComponentCoolingWateroRadiationMonitoringoReactorProtectionLogicSystemoSwitchyardPaneloAuxiliaryPanels.OneComponentLevelHumanEngineeringDiscrepancyReport(componentsheet)wascompletedforeachuniquealphanumericcode.Informationnotavailablefromthephotomosaicwascollectedonsite.Componentsweredividedintosubsystemswithineachpanelbyahumanfactorsspecialistwithcontrolroomoperatingexperience,andthisinformationwasincludedonthecomponentsheet.ThebottomhalfofthecomponentsheetincludesalistofHumanEngineeringDiscrepanciesnotedforeachcomponent.TheHumanEngineeringDiscrepancynumbershownreferstotheNVREG-0700guidelinewhichwasviolatedbythecomponent.21

'

AlthoughthecontrolroomEquipmentInventorywasintendedforuseinTaskAnalysis,thereferencestoHumanEngineeringDiscrepancynumbersonthecomponentsheetsalsoprovideFloridaPowerRLightwithalistofHumanEngineeringDiscrepanciesassociatedwitheachcomponent.Thecomponentsheetsarefiledbyunit,bypanel,bycomponenttypewithineachpanel,andfinallybylocationcodewithincomponenttype.2.1.5OutputsandResultsTheoutputofthistaskisadatabaseforeachcomponentinthecontrolroom.The4formcontainsinformationdescribingthecomponentandalistofassociatedHumanEngineeringDiscrepancies.TheHumanEngineeringDiscrepancynumberreferencesNUREG-0700guidelinesandtheappropriateHumanEngineeringDiscrepancy.22 0

2.2OperatorInterviews/OperatingExperienceReviews2.2.1ObjectiveInterviewswereconductedwithoperatingpersonnelinordertoobtaininformationoncontrolroomdesignandoperabilityfromusersofthesystem.Questionswereintendedtogatherinformationonstaffingandworkload,workspacedesign,controlroomenviron-ment,communications,annunciator/warningsystems,operatorprotectiveequipment,computers,procedures/documentation,operatorworkscheduling,andmanual/automaticcontrol.Documents(LicenseeEventReports)werereviewedfora5-yearperiodtoidentifyanyhistoriceventsthatinvolvedhumanerroroccurenceswithinthecontrolroom.2.2.2ReviewTeamResponsibilitiesInterviewswereconductedbyahumanfactorsanalystexperiencedininterviewtechniques.Eachintervieweewasbriefedregardingthepurposeandgeneralcontentofthequestionnaire,andeachrecordedresponsesappropriatelyontheinterviewforms.Briefingsandinterviewsbothwereconductedindividually.Operationspersonnelparticipatingintheinterviewsconsistedofthefollowing:nineshiftoperatorsincludingreactoroperatorsandseniorreactoroperators,onewatchengineer,andtwonuclearplantsupervisors.Ofthepeoplesurveyed,elevenweremaleandonewasfemale.Theyhadbeenlicensedforanaverageof3years,representingarangeof2monthstol3years.Documentswerereviewedbyahumanfactorsspecialistwithcontrolroomexperience.2.2.3CriteriaResponsestointerviewquestionsanddocumentreviewdatawerenotmeasuredagainstspecificcriteria.Rather,thesedirectedfurtherinvestigation,andwereverifiedandevaluatedthroughotherdatacollectionandanalysistasks(e.g.,checklists,surveys,taskanalyses,etc.).Additionally,theinterviewsprovidedtheoperatorswithachannelthroughwhichtheycouldsuggestordiscussbackfitsforspecificproblems.2.2.0TaskDefinitionThehumanfactorsanalystperformedthefollowingstepswhileconductingthe-interviews:23

oUtilityoperationsrepresentativeswerecontactedtoarrangetimesandplacesforbriefingsandinterviews.Whennecessary,operatorandinterviewermovedtothecontrolroomsothatincidentsorproblemsdescribedcouldbedemonstrated.oOperatorswerebriefedonthepurposeoftheinterviewanditscontributiontotheoverallcontrolroomevaluation.Foroperatorsnotfamiliarwithhumanfactors,thefieldanditsapplicationinthedesignofpowerplantcontrolsystemsandinterfaceswerediscussed.Operatorswereassuredoftheiranonymity,andnonameswererecordedontheinterviewform.oQuestionsfromthestructuredinterviewform(seeAppendixA)werereadaloudtoeachoperator,andresponseswererecordedontheformbytheinterviewer.Responseswerereadaloudtotheoperatortoensureaccuracy.Eachinterviewtookapproximately3hours.2.2.5OutputsandResultsAquantitativesummaryoftheresponsesisshownintheRESPONSESandFREQUENCYcolumnsofTable2.2-1.FREQUENCYvalueisbasedonresponsesfrom12operators.Anyqualificationofananswer,e.g.,"yes,butonlywhen...",isdiscussedintheCOMMENTScolumn,whichalsoincludesanyotherinformationnecessarytointerprettheresponses'ummary.Unlessotherwisenoted,anumberinparentheseslistedundertheCOMMENTSheadingreferstothefrequencyofidentification.Theseareusedparticu-larlywhereoperatorshavelistedexamplesofaproblem.Outputsconsistof12completedquestionnaires.Inanalyzingcommentsandsuggestedbackfitsmadebyoperators,itwasnotedthatsomeofthesameanswersweremadeanumberoftimesinresponsetodifferentproblems.Approximately200LicenseeEventReportswerereviewedtoidentifypotentialinstancesofhumanerror.Oftheapproximately40reportedeventsspecificallyinvolvinghumanerror,fourinvolvedhumanerroronthepartofthecontrolroomoperator.Theremaininghumanerrorsentailederrorsoutsidethemaincontrolroomonthepartofauxiliaryoperators,maintenancetechnicians,etc.Anumberoferrorsoccurredduetodocumentationdeficienciesincludingincorrectvalvelineupspecificationsinprocedures,proceduralstepsnotperformedorspecifiedinprocedures,maintenanceschedulesnotfollowedorspecified,softwaredeficiencies,miscalculationsofequipment,andsurveil-lancetestnotconducted.Thoseerrorsinvolvingthecontrolroomoperatorincludedthefollowing:oAreactorcoolantsystempressureincreaseduetothestartingofanadditionalchargingpump24 oAlowsafetyinjectiontanklevelduetoundetectedinstrumentdriftoRefuelingwatertankoverflowduetofailuretorespondtoahighlevelalarmoShutdowncoolingflowstoppedtoosoonduetofailuretoalign6.9kVbusses.Thereactorcoolantsystempressureincreasewasduetothestartingofanadditionalchargingpumpduringshutdowncoolingoperationstoincreaseletdownflowrate.Thiscausedreactorcoolantsystempressuretoincreasetoabove268psia,therebyinitiatingautomaticisolationoftheshutdowncoolingsystem.Nocontrolroomdesigndeficiencyhasbeenidentifiedasaresultofthisevent.Rather,procedureguidesandcautionsshoulddirectoperatingpersonneltothepossibilityofthistypeofevent.Thelowsafetyinjectiontankleveleventoccurredduetoinstrumentdriftwhichcausedthelevelinstrumentationtoerroneouslypresentlevelinformation.Alow-lowlevelalarmalertedoperatorstothecondition,andtheconditionwascorrected.Thehumanengineeringconcernherestemsfromtheissueofphysicalmeterneedlepositiondrivingannunciators.Thelowlevelsafetyinjectiontankannunciatordidnotalarm.Thecomputerlow-lowlevelalarmalertedoperatorstothecondition.ThisissueisdiscussedinHumanEngineeringDiscrepancy6.5.1.1.e.l.~Therefuelingwatertankoverflowoccurredwhenanoperatorfailedtorespondtoahighlevelalarm.AnumberofHumanEngineeringDiscrepancieshavebeennotedregardingannunciatorreadabilityandresponsecoding.Further,FloridaPower2Lightisenhancingtilereadabilityandprioritizingalarms.However,operatorattentionalandresponsefactorsarenotundertheinfluenceofdesignfactorsalone.Theannunciatorusability/readabilityenhancementprogramshouldsignificantlyreducetheincidencesofthistypeofevent.Theshutdowncoolingflowwasinterruptedtoosoonwhenthesystemwasstopped,andthereactorcoolantpumpsfailedtostartwhentheattempttostartwasmadebytheoperator.Thereactorcoolantpumpsdidnotstartduetofailuretoalignproperlythe6.9kVbussessupplyingthepumps.First,thestartupproceduresshouldspecificallyandconspicuouslydetailrackinginthereactorcoolantpumpbreakers.Anoteorcautionintheproceduremayevenbenecessary.Second,itshouldbeapparentthatthebreakerisrackedinsincethegreenorredlightsadjacenttothecontrolroomreactorcoolantpumpcontrolswillbeilluminatedonlywhenpowerisavailabletothepumps:Sincethoselightsareimmediatelyadjacenttothecontrolhandles,nodesign-relatedHumanEngineeringDiscrepancieswerenotedorgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONA.STAFFINGRWORKLOAD2.Whatisthemaximumnum-berofoperatorsneededtoeffectivelyoperatethecontrolroomduring:a.-normaloperations?b.startup/shutdown?c.transients?RESPONSES+2ROs,2SROs3ROs,2SROs2-3ROs-2ROs,1SRO3ROs,2SROs0ROs,2SROs0ROs,3SROs0ROs0ROs,2SROs0ROs,1SRO3ROs,3SROs3ROs,2SROs+2ROs,2SROs0-5SROs2-3ROs,1SRO3ROs,1SROnoanswer+=actualstaffingFREUENCY1111HUMANENGINEERINGDISCREPANCIESGENERATEDNoHumanEngineeringDiscrepancywasgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED0.Haveadministrativeorrecord-keepingresponsibilitieseverinterferedwithyouroperationalduties,especiallyduringoff-normalconditions?YesNoOperatorsresponding"yes"indicatedthatrecord-keepingcausedproblemsparticularlyduringoff-normalsituationsduetoincreasedoperationalandpaperworkrequirementsatthosetimes.Operatorsresponding"no"indicatedthatalthoughthereisagreatdealofpaperworkanditisnotusuallypossibletokeepupwithitduringtransients,plantoperationisalwaysthefirstpriority.NoHumanEngineeringDiscrepancywasgeneratedsincepaperworkdutiesareabandonedduringoff-normalsituations.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATEDB.WORKSPACEDESIGN3.Dotheactionsortasksofanotheroperatoreverinterferewithperformanceofyourtasks?YesNoOccasionallyNoAnswerOperatorsresponding"occasionally"indicatedinterferencefromnon-controlroomoperators,particularlytrainees.NoHumanEngineeringDiscrepancywasgeneratedsinceresponsesaddressedcontrolroomaccess,notcontrollinginterference.0.Haveyoueverexperiencedanydifficultyinreachingare-quiredcontrolorseeing/readingarequireddisplay?YesNo102Tenoperatorsreportedhavingproblemswithatleastthetoprowoflowercasemeters.Ofthetwowhosaidthattheydidnothaveproblems,onesaidthatitwasbecauseheestimatedhisreadingsonthetoprowofmeters.Anumberofoperatorsalsoreportedhavingdifficultyreadingthesecondrowfromthetopandthebottomrowofsigmameters..Oneoperatornamedthemetersdisplayingpressurizertemperatureandsafetyandrelieflinetemperatures,alllocatedinthetoprowofRTGB103,asbeingparticularlydifficulttoreadbecausenormalvaluesareatthetopofthemeters.HumanEngineeringDiscrepancies6.1.2.2.e.l.band6.1.2.5.b.Severalcontrolswereidentifiedasbeingdifficulttoreach.HumanEngineeringDiscrepancies6.1.2.2.b.land6.1.2.5.a.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERING~DISCREPANCIESGENERATED5.Haveyoueverexperiencedanydifficultyinlocatingare-quiredcontrolorseeing/readingarequireddisplay?YesNo12-0ManyoperatorscitedRTGBs105and106ashavingthemostoccurrencesofsubstitutionerrors.Bothofthesepanelshavelongarraysofidenticalrotarycontrolswhicharenotshape-codedorbrokenupbyspacingordemarcation.HumanEngineeringDiscrepancies6.1.2.2.e.2and6.1.2.2.f.6.Arepanelsarrangedwithinthecontrolroominamannerwhichislogicalfornormalandemergencyoperations?YesNoNoAnswerSixoperatorscommentedthattherearefeedwatercontrolsusedduringstartuponRTGBs102and106.Theysuggestedthatthoseon106bemovedto102.HumanEngineeringD>screpancy6.1.2.2.e.2.7.Arecontrolsanddisplayspertainingtosystemsorsubsys-temsgroupedlogicallyanddis-tinctivelywithineachpanel?YesNoSometimesThepanelfrequentlynotedasbeingdisorganizedandconfusingwasRTGB106.HumanEngineeringDiscrepancies6.8.1.2,6.8.2.1.(a,b,c),and6.8.3.2.b.8.Doesyourpanellackimpor-tantinformation,controls,ordisplayswhichwouldhelpyouperformyourjobmoreeffec-tivelyorsafely?YesNoSeveralcontrolsanddisplaysconsideredimportantbyoperatorsarenotpresentlyinthecontrolroom.HumanEngineeringDiscrepancy6.5.1.1.b.9.Areimportantdata,con-trols,ordisplaysinaccessbileordifficulttoaccessbecauseofplacement(e.g.,locatedinbackpanelsoutofoperator'sview)?YesNoNoAnswer1011Severalcontrolsanddisplaysconsideredimportantbyoperatorsarenotlocatedinaprimaryarea.HumanEngineeringDiscrepancies6.1.1.l.band6.1.1.3.a.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESHUMANENGINEERINGDISCREPANCIESGENERATED10.Doesthecontrolroomcontaincontrols,displays,orotherequipmentwhichisinop-erative,notused,orunneces-saryforyoutodoaneffectivejob?YesNoNoAnswer831Operatorsciteditemsthatareinoperative,unnecessary,ordonotbelongonthefrontofthepanel.HumanEngineeringDiscrepancy6.5.1.1.c.11.Doyoufindmimicsorgra-,phic/pictorialpanelarrange-ments,ifused,helpfulinper-formingyourjob?YesNo120Operatorswereverypositiveaboutmimics,however,theycitedafewcriticismsofthepresentmimics.TwooperatorsnotedthattheelectricalmimiconRTGB101doesnotshowtheactualarrangementofthebussesitrepresents,butthedrawingsusedintrainingdo.Operatorsaretestedforlicensingontheactualarrangement.TwooperatorssaidthatmimicsarenotusedfrequentlyenoughandsuggestedthattheAuxiliaryFeedwaterSystemshouldbemimicked.HumanEngineeringDiscrepancy6.8.1.3.b.12.Haveyoueverinadver-tentlydisturbedcontrolset-tings(e.g.,accidentlybumpedaswitch)?YesNoNoAnswer291Thefollowingcontrolactivationerrorswerereportedbyoperators:SubstitutedAnnunciatorResetforDEHFluidTestMovedrotarycontrolsbeneathannunciatorcontrolsonRTGB103whileacknowledging,resetting,ortestingannunciators.NoHumanEngineeringDiscrepancywasgenerated.Theannunciatorcontrolshavebeenrelocated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED13.Havegroupsofcontrolsordisplayswhichlookidenticalorverysimilarbeenmarkedorcodedtopermiteasydiscriminationbetweenthem?YesNoOccasionally1101Operatorshavemarkedsomecontrolstodiscriminatebetweenimportantandlessimportantcontrols,e.g.,ReactorCoolantPumpsandEmergencyBorate.Thefollowingmethodsforcontrolcodingweresuggested:Demarcation(1response)Shapecoding(0responses).Twooperatorscommentedthattheythoughtdemarcationwoulddegradethesituation.NoHumanEngineeringDiscrepancywasgenerated.15.Doyoufindoperator-addedmodificationshelpful?YesNo120NoHumanEngineeringDiscrepancywasgenerated.17.Isthecontrolroomarrangedtobeeffectivelyoperatedbytheminimumshiftrequiredduring:a.normaloperations?b.transients/emergencyoperations?YesNoNoAnswerYesNoNoAnswerTwooperatorsnotedthatalthoughthereareproblemswithpanellocationnow,thepoorlylocatedpanelsaretheoneswhichhavebeenaddedrecently.Specifically,theControlRoomAuxiliaryConsoleandFirePanelarelocatedoutsidetheprimaryoperatingarea.Othercommentswerethat:Arackisneededtoholdtheproceduressotheoperatorisnotrequiredtowalkbackandforthbetweenthedeskandpanel.TheReactorRegulatingSystemsurveillancerequirestheoperatorstoyellbackandforthovertheboard.HumanEngineeringDiscrepancies6.1.1.1.band6.1.1.3.a.

eTABLE2.2-1OPERATORSURVEYRESPONSESUESTIONC.WORKSPACEENVIRONMENTRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED1.Whichofthefollowingen-vironmentalfactorsinterferewitheffectiveperformanceofyourjob?a.Ventilationb.Temperature/Humidityc.Illuminationd..Noisee.Excessivecontrolroomtrafficf.Other:+NomusicDirtyboardCarpetcolorWallandfloorcolorsincontrolroom+Operatorresponseswhenaskedwhat"other"environ-mentalproblemstheyhad.2911113111a.Ventilation-paint(fumes)anddustfromconstructionhave,onoccasion,forcedoperatorstopropcontrolroomdoorsopen.NoHumanEngineeringDiscrepancywasgenerated.c.Illumination-thereisconsiderabledisagreementastotheappropriateamountofilluminationnecessarytooperatethecontrolroom.Someoperatorscomplainedthatthepresentlightinglevelcausesglare,particularlyontheMetrascope.Otherscomplainedthatthecontrolroomistoodim.NoHumanEngineeringDiscrepancywasgeneratedsincea.discrepancywasnotsubstantiatedbythecontrolroomsurvey.d.Re.NoiseandExcessiveControlRoomTraffic-"unnecessarypeopleinthecontrolroom"wascitedasamajorfactorintheexcessivenoiselevel,particularlyduringtransients.Thesepeople,operatorsreported,causedistractionsbytalkingamongthemselvesandbyaskingtheoperatorsquestionsaboutwhat.ishappening.Controlroomnoiseandtrafficisalsoaffectedbythebackfitworkbeingdone.Thisbringsinconstructionworkers,andnoisefromtheconstructionworkisexcessive.Itisnotpossibletohearanalarmwhensomeoneisdrillingholesinthefloor.Thenoisesurveyfailedtosubstantiatehighbasalnoiselevels;noHumanEngineeringDiscrepancywasgenerated.HumanEngineeringDiscrepancy6.1.1.3.daddressescontrolroomtraffic.

~TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED2.Arethereproblemswithtimeanddistanceinvolvedinleavingthecontrolroomtopreparefoodorusefacilities?YesNoThreeoperatorsreportedthatanoperatorinthecontrolroomcannotcontactanoperatorinthekitchenorrestroom.Theysuggestedthata-buzzerorintercombeinstalled.Oneoperatornotedthatbecausealloperationspeopleusethekitchen,-itissometimesinaccessibletocontrolroomoperators..Sincecontrolroommanningis'pecifiedbytechnicalspecifications,noHumanEngineeringDiscrepancywasgenerated.

0TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATEDD-COMMUNICATIONSl.Arethereproblemswithcommunicationsproceduresorequipmentwhichinterferewithreceivingortransmittingrequiredinformationinanyofthe.followinginstances?a.Controlroomtofieldb.Fieldtocontrolroomc.Controlroomtosuper-visord.ControlroomtoNRCe.ControlroomtoothersYesYesYesYesYes10620IProblemswithcommunicationsbetweencontrolroomandfieldoperatorswereprimarilyattributedtonoiseinthefieldorcontrolroom.Fieldoperatorscannotalwayshearthepageinhighnoiseareas.Whentheydopickupthephone,thenoiselevelsinthefieldandthecontrolroompreventcontrolroomoperatorsfromhearingthem.NoHumanEngineeringDiscrepancywasgenerated.2.Areyouawareofanyinstancesinwhichoperator-to-operatorcommunicationshavebeenlostormisheardduetodistanceornoiselevels?YesNoIngeneral,lostcommunicationsweremostoftenattributedtonoiseanddistractionproducedbyvisitorsandconstruction.Ambientcontrolroomnoisewasfoundtobeadequate,andnoHumanEngineeringDiscrepancywasgenerated.3.Doestheoperationofcommunicationsequipmentorrequirementsforcommunica-tionsinterferewithoperationsduring:a.normaloperations?b.off-normaloperations?c.emergencyoperations?YesYesYes"Yes"answerstothisquestiondiscussedinterferenceofboththesoundofthephonesandtherequirementtoanswerthem.Frequencyofphonecallsincreasesduringpeakandmidnightshiftsbecausetheswitchboardisnolongeroperated,particularlybetween6:30and7:30a.m.;andduringtransientsaspeoplecallthecontrolroomforinformation.Noproblemswerenotedconcerningtheoperability/usabilityofthe~communicationsequipment.NoHumanEngineeringDisrepancywasgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATEDE.ANNUNCIATORS/LEARNINGSYSTEM7.Doyouhaveanyproblemsreadingannunciatormessagesfromanypointinthecontrolroomfromwhichthemessagesmustberead?YesNoNoanswerOneoperatorindicatedthatannunciatorsshouldbereadablefromtheoperator'sdeskandthatyellowandgreentileswereparticularlydifficulttosee.HumanEngineeringDiscrepancy6.3.3.5.a.9.Do"nuisance"or"false"alarmseverinterferewithyourperformingyourjobeffec-tively?YesNo120Operatorsreportedthatproblemsoccurmorefrequentlyduringtransientsthanduringnormaloperations.Nuisancealarmsfellintothreecate-gories:thosewhichareunnecessary;tilesnor-mallyinthealarmstateduetoadministrativecontrols;andwindowsthatalarmfrequently.Alloperatorslistedatleastonenuisancealarm.HumanEngineeringDiscrepancy.6.3.1.2.a.l.10.a.Aretheresufficientan-nunciatorcontrols?YesNoNoanswerThefouroperatorswhorespondednegativelybe-lievedthatanothersetofcontrolsshouldbeinstalledonRTGB106.Oneofthefourfeltthateverypanelshould.haveitsownannunciatorcon-trolstation.HumanEngineeringDiscrepancy6.3.0.2.b.10.b.Aretheyeasilyaccessi-blefromallpanels?YesNoNoanswer53Fouroperatorswereconcernedwiththeaccessi-bilityofthecontrolsonRTGB103andfelttheyshouldbemovedtothefrontoftheboard.Thesehavebeenmoved;noHumanEngineeringDiscrep-ancywasgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESHUMANENGINEERINGDISCREPANCIESGENERATED12.Whatrecommendationswouldyoumaketoenhancetheoperatorusabilityofyourannunciatorsystem?Listedbelowaretherecommendationsmadeandthefrequencyofoccurrence.Institute"darkpanel"concept.(1)Indicationofclearedalarm.(5)(Note:3believedthatan"alarmclear"indicationwouldbedetrimental.)Largerletters.(1)Instituteasystemallowingoperatorstopullonecardtodisableonewindowinsteadoftwo.(1)Engravesetpointsonwindows.(2)Eliminatewindowswithmorethanonemessage.(2)Instituteasystemallowingoperatorstoresetoracknowledgeanalarmfromany.annunciatorcontrolstation.(2)ColorcodingwindowonwhichthemessageinvolvesaTech.Spec.violation.(1)Instituteanaudiblealarmsysteminwhicheachpanel'salarmisdistinctiveineitherlocationortone.(6)NoHumanEngineeringDiscrepancywasgenerated.

eTABLE2.2-1OPERATORSURVEYRESPONSESUESTIONF.OPERATORPROTECTIVEEQUIPMENTRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED3.Doesthefacemaskinter-ferewithvisibility?YesNoNoAnswer33Oneoperatorsaidthatmaskslimitperipheralvision,'andanothersaidthatthelensesareeasilyscratched.Athirdreportedthatthemasksbecomefogged,butonyafterafewhoursofwear.HumanEngineeringDiscrepancy6.2.1.8.b.0.Doesthefacemaskinter-ferewith:HumanEngineeringDiscrepancies6.2.1.8.(b,c).ta.Operator-to-operatorcommunications?YesNoNoAnswer26+b.Useofcommunicationsequipment?YesNoNoAnswer25.Haveyoueverencountereddifficultyinperformingre-quiredtasksasaresultofwearingprotectiveequipment?YesNoNoAnswerTwoofthethreeoperatorsresponding"yes"tothisquestionspecificallyidentifiedglovesasaproblem.Theyfeltthatthethickrubberglovesnormallyusedwouldnotallowthenecessarydegreeoftactilesensitivity.HumanEngineeringDiscrepancy6.0.1.l.d.6.Doyoufeelsufficientlypracticedindonningprotectiveequipmentsothat,iftheneedarises,youfeelyoucoulddoniteasilyandquickly?YesNo102NoHumanEngineeringDiscrepancywasgenerated.+Thesepeoplehadnotbeenfittedforarespirator.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATEDG.COMPUTERS2.Doyoufindthecomputerusefulandreliable?YesNoNoHumanEngineeringDiscrepancywasgenerated.3.Doyoufeelthatoperatorsareadequatelytrainedtousethecomputer?YesNoIMostoperatorsremarkedthattheywerecapableofperformingbasictasksonorwiththecomputersystems,butthattheyknewthatthecomputercouldbeusedformorecomplextasks.NoHumanEngineeringDiscrepancywasgenerated.0.Whatchangesoradditionsincomputerusagewouldyourecommend?Listedbelowaretherecommendationsmadeandthefrequencyofoccurrence.InstallCRTstodisplaysystemschematicsand/orimmediateactions.(3)InstallCRTstoshowsystemstatus.(1)Reduceprinternoise.(1)Makesystem-useinstructionsavailable.(1)FormalizeuseofHewlitt-PackardProgrammableCalculator.(1)NoHumanEngineeringDiscrepancywasgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESPREUENCYHUMANENGINEERINGDISCREPANCIESGENERATEDI.OPERATIONS1.Doyoufeelthattoomanyfunctionsareperformedauto-maticallybythesystemincon-trollinganabnormalevent?YesNoNoAnswerNoHumanEngineeringDiscrepancywasgenerated.3.Canyousuggestexampleswhereautomaticcontrolwouldbepreferable,wherenotcur-rentlyprovided?YesNoNo'umanEngineeringDiscrepancywasgenerated.0.Pleasedescribeanyaddi-tionaloperationalproblemsyouhaveexperiencedwiththecur-rentpaneldesign.Listedbelowaretherecommendationsmadeandthefrequencyofoccurrence.Meterincrementsarenotconsistent,parti-cularlythearrayofReactorCoolantPumpmetersonRTGB103.(2)TheMatrixRelaySurveillanceontheReactorProtection-Systemrequiresholdingabuttonforapproximately20minuteswhilemanipulatingothercontrols.(1)Toomuchinformationforanoperatortoassimilateispresentedonthecoremimic.(1)Headphonecommunicationsarepoorlydesigned;jacksarepoorlylocated,andplugginginajackcancutinoncommu-nications.(1) 0 TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESHUMANENGINEERINGDISCREPANCIESGENERATEDTheMetrascopeshouldnotflashtoindicateadroppedrod;therodcannotbedistin-guishedwhenthedisplayisflashing.(1)Therearetoomanycomponentsontheboard.(1)Therearenotenoughnuclear,turbine,and-auxiliaryoperatorsscheduled.(1)Thecontrolroomshouldbelessaccessibleduringoff-normaloperations.(I)Aclericalworkershouldbehiredtohelpcompletepaperwork.(1)NoHumanEngineeringDiscrepancywasgenerated.

TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED3.OPERATORWORKSCHEDULINGl.Wouldyoupreferadifferentsystemofshiftscheduling?YesNoNoanswerListedbelowaretherecommendationsmadeandthefrequencyofoccurrence.Workstraightshiftsratherthanrotating.(3)Spendmorethanoneweekonashift.(3)Work12-hourdays.(1)Movefromdaytopeaktomidnightratherthaneveningtodaytonight.(2)No.HumanEngineeringDiscrepancywasgenerated.2.a.Haveyoueverexperiencedanynegativeeffectsinchang-ingfromoneshifttoanother,inyourselforinotheropera-tors?YesNo120NoHumanEngineeringDiscrepancywasgenerated.2.b.Hasthisaffectedoper-atingabilities?YesNoNoanswer912NoHumanEngineeringDiscrepancywasgenerated.3.a.Doyoufeelthatextendedshiftsorovertimedegradesyourabilitytoperformyourjobeffectively?YesNoNoHumanEngineeringgenerated.Discrepancywas TABLE2.2-1OPERATORSURVEYRESPONSESUESTIONRESPONSESFREUENCYHUMANENGINEERINGDISCREPANCIESGENERATED3.b.Haveyoueverexperiencedanyproblemsoperatingtheplantasaresultofworkingextensiveovertime?YesNoNoanswerNoHumanEngineeringDiscrepancywasgenerated.0.Areyouawareofanyopera-torswhohaveexperiencedper-sonalproblemsasaresultofworkingshiftsand/orovertime?YesNoDon'tKnowNoHumanEngineeringDiscrepancywasgenerated.

2.3SurveysThissectionpresentstheobjectives,reviewteam,evaluation~criteria,taskdefinition/methodology,andresults/findingofeachcontrolroomsurvey.Theseinclude:oNoiseoLightoEnvironment/WorkspaceoControlsandDisplaysoConventionsoProcessComputeroEmergencyGarmentsoL'abelsandLocationAidsoAnnunciatorsoAnthropometryoForce/TorqueoCommunicationsoMaintainability.

2.3.1NoiseSurvey2.3.1.1Objective-ThepurposeoftheNoiseSurveywastoensurethatnoiselevelswithinthecontrolroomdonotinterferewithaidedandunaidedvoicecommunicationsorwithsignalaudibility.Toaccomplishthis,noiseandsignallevelsweremeasuredtodeterminewhetherornottheywerewithinacceptableranges.2.3.1.2ReviewTeamResponsibilities-Thesurveywasconductedbytwohumanfactorsengineersfamiliarwithoperationofthesoundlevel'eterandfundameritalpropertiesofsound.Thesurveyalsorequiredtheparticipationofacontrolroomoperatortoidentifyandinitiatealarmsandtodescribeproblemsinthecontrolroomrelatedtohighnoiselevels.2.3.1.3Criteria-o.Verbalcommunicationsbetweenpointsareintelligibleunderslightlyraisedvoicelevels(6.1.5.5.a)oAmbientnoiselevelsdonotexceed65dB(A)(6.1.5.5.b)oNoisedistractionsareminimized(6.1.5.5.d)oSignal-to-noiseratio(S/N)foralarmsisatleast10dBwithanS/Nof20dBinoneormoreoctavebandsbetween200and5000Hz(6.2.2.6.a)oAuditorysignalintensitiesdo.notexceed90dB(A)(6.2.2.6.c).?3.1ATaskDefinition/MethodologyAmbientSoundLevel-Ambientsoundlevelwasrecordedat17pointswithinthecontrolroomandrecordedonTable2.3.1-1,SoundSurveyRecord.Measurementswere1takenindB(A)weighting,thescalewhichmostaccuratelyrepresentstheresponseofhumanhearing.Readingswerealsotakenateachpointfortheoctaverangesfrom250to0000HzusingtheA-weightingscale.Allofthebasalmeasurementsweretakeninthecontrolroom,withoutcontributingconversation,communication,ornoisefromalarms.Levelsweretakenwhentheplantwasoperatingat100%power.Thebasalreadingsrepresentedconstantnoiseinthecontrolroomfromventilationandequipment.Othersourceswhichwerenotconstant,however,alsocontributedtotheambientsoundlevel;thesemayhinderfuturedetectionofimportantsignalssuchasannunciatoralarms.Soundsourceswhichwerereportedbyoperatorsasdistracting,i.e.,theprintersandvacuumcleaner,weremeasuredandrecorded.Printerreadingsweretakenthreefeet'romthesource,andvacuumcleanerreadingsweretakenattheoperator'sdesk.SignalDetection-MeasurementsofdBandoctavebandsfrom250to4000Hzweretakenfromalarmsatthealarmsourceandattheoperators'esk.Allreadingswere TABLE2.3.1-1SOUNDSURVEYRECORDWorkStationOctaveBanddB(A)2505001K2K0KFirePanel101-Back102/103-Back100/105-Back106-BackNPSOfficeRADMonitor106-Front100/105-Front102/103-Front101-FrontComm.DeskOperatorsDeskPrinterDoorWEOfficeLineRepeat60596060666068666261595958586059595958585959595958585959595959575858605065656858676361575850565262,526053575159525852565257505960515752520063055708595550090906080009.00090008050805080008000800090007005700BasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalBasalLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelLevelOperatorsDesk716769666356Noisecontributedbyvacuumcleaner,atdesk.Printer(DDPS-SER)7061~62636162Printeroperating.Comm.Desk675868625957Withnoisecontributedbyannunciatoraudible.CRAC102/103-FrontLineRepeat8069636668595952705956528277WithnoisecontributedbyControlRoomAuxiliary'onsole.5065Withnoisecontributedbyfirealarm.7071WithnoisecontributedbyLineRepeataudible.

'080 A-weighted.Thesemeasurementswerecomparedtotheambientreadingstodeterminewhethertheyweresufficientlydifferentinpitchandvolumetobediscerniblefromthebackgroundnoise.Thealarmsevaluatedwerefrom'heLineRepeatPanel,ControlRoomAuxiliaryConsole,FirePanel,andMainControlBoard.Measurementsandcomparisonstoambientsoundlevelwerecompletedandrecorded.Equipment-ThesoundlevelmeterusedwasaGenradModel1982witha1962-9610microphone.ThemeteriscapableofmeasuringindB,dB(A),dB(B)anddB(C)weightingsandinoctavebandrangesfrom30to16,000Hz.Operatorinputwasnecessarytoidentifynoisesourceswhichmaymaskaudiblealarms.Aformwasusedto'ecordreadingsforambientsoundlevel,noisesources,andaudiblealarms.2.3.1.5Results/Findings-Table2.3.1-1summarizesnoiselevelsintheSt.LucieUnit1ControlRoom.Althoughsomeareasofthecontrolroomhadsoundlevelsgreaterthantherecommendedmaximum(65dB(A)),theywerenotpartoftheprimaryoperatingareaandonlyexceededthemaximumby3dB(A).Noisecreatedbythevacuumcleanerandprinters,however,was5dB(A)greaterthanthemaximumwhenmeasuredintheareaaroundtheoperators'esk.Althoughthevacuumcleaneronlyoperatesafewminutesadayandmaybeturnedoffattheopertors'equest,theprintersbothoperatemorefrequentlyduringtransientsandhencewilladdextraneousnoisejustatthetimewhenitwillhavethehighestlikelihoodofmaskingalarms.Twoalarmsmeasuredwerenotsufficientlydifferentfromtheambientsoundleveltopreventthemfrombeingmasked.Sincethisexistsinconjunctionwithaslightlyexcessiveambientsoundlevel,particularlyduringoff-normalconditions,theprobabilitythatthesealarmswillbemaskedisincreased.Overall,thenoiseenvironmentwasassessedtobeadequateandtoenableaudiblesignaldetectionandvoicecommunications.Table2.3.1-2summarizestheHumanEngineeringDiscrepancyidentifiedbytheNoiseSurvey.

TABLE2.3.1-2NOISESURVEYHUMANENGINEERINGDISCREPANCY(HED)File8HEDf6.2.2.3.aDescritionSimilarnon-distinguishableauditorysignals.,LocationControlRoom 2.3.2LightingSurvey2.3.2.1Objective-Theobjectiveofthe,LightingSurveywastoensurethatthecontrolroomlightingissufficienttopermit,theoperatortoeffectivelyperformallnecessarytasks.Thelightingtestedincludesambientillumination,reflectedluminance,andreflectancethroughout'hecontrolroom.AmbientilluminationwastestedunderbothfullAClightingconditionsandfullDClightingconditions.2.3.2.2ReviewTeamResponsibilities-Twohumanfactorsspecialistsconductedthissurvey.Responsibilitiesincludeddevelopingthetestprocedures,conductingthetest,andrecordingandanalyzingthedata.2.3.2.3Criteria-Figure2.3.2-1summarizesthecriteriausedinthesurvey:oRecommendedillumination.levels,in'footcandles,asstatedinNUREG-,0700(6.1.5.3)oRecommendedreflectancelevels,inpercentage,asstatedinNUREG-0700(6.1.5;3.f).oChecklistcriteria(seeAppendixA).2.3.2.0TaskDefinition/Methodology-Thegeneralprocedurefortakingphotom-etermeasurementsincludesmeasuringambientilluminationandreflectedluminance.ATektronixModel316digitalphotometerwithilluminanceandluminanceprobeswasused.Ambientilluminationmeasurements,infootcandles,weretakenatalloperatorworkstations.Consolesandpanelsweremeasuredinapproximatelytwo-footincrementsin,agridpatternoverthesurfaceevaluated.Theprobewasplacedonthesurfacearea,andmeasurementsweretakenundernormalandemergencylightingconditions.Thereadingswererecordedonadatasheetreflectingthesamegridpattern..,Reflectanceofsurfacesinthecontrolroomwasmeasuredusingacombinationofilluminanceandluminanceprobeswiththeapplicationofthereflectanceformulatothedata.Theformulaemployedtoderivereflectanceisasfollows:ReflectanceReflectedLuminanceAmbientllluminancePresenceofglarewithinthecontrolroomwasvisuallyexamined.2-3.2.5Results/FindingsAmbientilluminationlevelsfortheverticalpanelsatprimaryoperatingareasarewithinacceptablelimits;however,illuminationlevelsonbenchboardsexceedtherecommendedranges.However,reducingambientlightonthebenchboardswouldlikewisereduceambientlightontheverticalpanelswherethemajorityofinformation(linear AreasLuminanceRagfoWorkAreaorTypeofTaskMini.mumRacommendedMaxi-mumTasklllumlnance,footcandlesTaskareaversusadjacentdarkersurroundingsTaskareaversusadJacentlightersurroundingsTaskareaversusmoreremotedarkersurlacasTaskareaversusmoraremoteIlgherareasInarlesversussurfacesJacentto!hemAnywherewithinnormalfieldofview1:310:11:10Maximumtaskarealuminanceratios.Panels,primaryoperatingareaAuxiliarypanelsScaleIndicatorreadingSeatedoperatorstationsReading:~Handwritten(pencIIJ~PrfntedortypedWritinganddatarecordingMaintenanceandwiringareasEmergencyoperatinglighting107510050100Asaboveforarea/task(Source:IlluminatingEngineeringSocietyofNorthAmerica,fESLightingHandbook,1981ApplicationVolume.)illuminationlevelsSurface.RellectancesPreferredPermissibleCallingUpperWallLowerWallInstrumentslDlsplaysCablnetiConsolesFurniture80%50%'520%80100%2540/>>30%35%NN5%4040'/i1530%2&45%aRecommendedrellectancesareforfinishonly.Over~llaveragerellectanceofacousticmaterialsmaybesomewhatlower.Theupperwalla(onetotwofeetbelowthecalling)maybepaintedwiththesamepaintaalausedonthecalling.RecommendedworkplacereflectancelevelsFIGURE2.3.2-1SummaryofI.lghtlngEvaiuatlonCriterIa scaledisplays,etc.)ispresented.Therefore,reducingambientlightlevelsmaynotbeadvisable.TheilluminationlevelsfromNUREG-0700(6.1.5.3.a)areasfollows:oMinimum-20footcandlesoRecommended-30footcandlesoMaximum-50footcandles.ILargevariancesexistforilluminationlevelsbetweenverticalpanelsandbench-boardsandbetweentheprimaryoperatingareaandauxiliarypanels.Illuminationlevelsofhighvariabilitythroughoutthecontrolroomforcerapidpupilaccommodationtooccurwhenscanningthecontrolboardsormovingfromonelocationtoanother.AmbientlightreadingstakenattheRemoteShutdownStationindicatelevelsbelowrecommendedguidelineranges.Existinglevelsrangefrom6.0to22.6footcandles.Reflectancereadingstakenatcabinetsandconsolesallfallwithintherecommendedlevelsof20to00percent.DCIlluminationSystemdoesnotprovidetheminimumacceptablelevel(10footcandles)foreffectivetaskperformance.RTGB103isanexception,possiblybecauseoftheproximityofthelightsource.DieselGeneratorEmergencyACIlluminationwasalsomeasuredfortheconditionoflossofalloff-sitepower.Thisconditionincludedthefollowingsubsequentlightingconfigurations:oARBDieselGeneratorAClightsoADieselGeneratorAClightswithBBatteryBusDClightsoBDieselGeneratorAClightswithABatteryBusDClights.Table2.3.2-1summarizestheHuman-EngineeringDiscrepanciesidentifiedbytheLightingSurvey.50 TABLE2.3.2-1LIGHTINGSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8HED06.1.5.3.aDescritionAmbientlightreadingsforilluminationlevelsaretoolow.LocationRemoteShutdownPanel39006.1.5.3.a6.1.5.3.b6.1.5.3.c6.1.5.0.cIlluminationlevelsforbenchboardsaretoohigh.Noilluminationuniformityfromonepanelareatoanother.Lackofsupplementallightinginneededareas.DCilluminationlevels.arebelow10fc.Allbenchboards.AllverticalbenchboardsandauxiliarypanelsLineRepeatPanel;ControlRoomAuxiliaryConsole;Post-AccidentPanel;Heating,Ventilation,RAirConditioning;ReactorProtectionSystemAllexceptpanelRTGB103 2.3.3EnvironmentSurvey2.3.3.1Objective-TheobjectiveoftheEnvironmentSurveywastoevaluatethecontrolroomenvironmenttoensuresafe,comfortable,andefficientoperation.Theassessmentincludedfurnitureandequipmentlayout;documentorganization,use,andstorage;supervisoraccesstothecontrolroom;ambienceandcomfort;temperature;humidity;andventilation.2.3.3.2ReviewTeamResponsibilities-Thepersonnelrequiredtoconductthissurveyandtheirresponsibilitiesincluded:oAhumanfactorsengineerresponsiblefordatacollection,dataanalysis,andfinalreportpreparation.oVariouscontrolroomoperators,familiarwithcontrolroomopera-tionsandproblems,toassistintheassessmentofthecontrolroomenvironment.Theirinputwascontributedthroughinformalandformalinterviewprocesses.oAtechnicalassistanttoaidinthecollectionofmeasurementsanddata.2.3.3.3Criteria-ThefollowingaresummarizedcriteriafromNUREG-0700usedtoevaluatethecontrolroomenvironment..DetailedcriteriaarecontainedinAppendixA.FurnitureandEquipmentLayout-Workstations,includingdesks,consoles,andpanels,shouldbeplacedandspacedtofacilitateunobstructedviewing,movement,andcommunications.oL-shape,U-shape,concentric,orwingconfigurationsfacilitatesight,movement,andcommunications.oEnoughspaceisallowedtoenableasingleoperatortoperformrequiredtasks.Aminimumof60inchesisrecommendedbetweenasinglerowofequipment/panelandawallorotheropposingsurface.Aminimumof50inchesisrecommendedbetweentworowsoffacingequipment.oAminimumof3feetofspaceisrecommendedbetweenopposingrowsofequipmentwheremorethanoneoperatormustworksimul-taneouslyorwherekneelingorbendingisnecessary.DocumentOrganization,Use,andStorage-Agoodsystemfororganizingandstoringdocumentsisrecommendedtoenhancetheirlocationanduse.Alldocumentsshouldbeeasilyaccessible.Documentsshouldbeclearlylabeled.SupervisorAccesstoControlRoom-TheShiftSupervisor'sOfficeshouldbereadilyaccessibletothecontrolroom.52 000 Temperature,Humidity,andVentilationoAirtemperatureatfloorlevelandatheadlevelshouldnotdifferbymorethan10oF.~oTheventilationsystemshouldmakeupoutdoorairintothecontrolroomatarateofatleast15cubicfeetperminuteperoccupant.AmbienceandComfort-Featurestoconsiderincreatingapleasantandcom-fortableatmosphereinthecontrolroomare:oColorcombinationoColorandlightingoVisualrelieffrominstrumentationoComfortableseatingoCarpeting.2.3.3ATaskDefinition/Methodology-Thefollowingprocedureswereusedtoevaluateeachofthecontrolroomenvironmentsubcategories.FurnitureandEquipmentLayoutoThecontrolroomworkstationsweredeterminedtoincludethecontrolroomoperator'sdesk;theentirebenchconsole;verticalpanelsA,8,andNuclearInstrumentationSystem;andthecomputerprintertable.Alsoexaminedwereentrance/exitsfromtheprimaryworkareaandwalkspace/passagewaydimensionssurroundingworkstations.o'aintenanceandoperationalrequirementswerereviewed(toelimi-natethosecriterianotapplicabletothiscontrolroom).oFurnishingsandequipmentwereevaluatedusingthechecklistcon-tainedinAppendixA.DocumentOrganization,Use,andStorageoPlantproceduresweretheonlydocumentsevaluatedastheseweretheonlydocumentsstoredwithintheprimaryareaofthecontrolroom.oTheprocedureswereevaluatedonasamplebasisusingthechecklistcontainedinAppendixA.Temperature,Humidity,andVentilationoTemperatureandhumidityweremeasured20hourseachatheadandfloorlevelusinga7-daycontinuouscirculartrendrecorder.oTemperature,humidity,andventilationmeasurementswerecom-paredtoNUREG-0700recommendedguidelines.53 ControlRoomDecor-OperatorinterviewswerereviewedandeachfeatureofcontrolroomdecorwasevaluatedandcomparedtoNUREG-0700recommendations.2.3.3.5Results/Findings-Ingeneral,theSt.LucieUnit1ControlRoommeetstheNUREG-0700guidelines.Table2.3.3-1summarizestheHumanEngineeringDiscrepanciesidentifiedbytheEnvironmentSurvey.

TABLE2.3.3-1ENVIRONMENTSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)FilefHED8DescritionLocation6.1.1.3.a6.1.1.3.(c,d)Panellocation/visibility.Controlroomaccessibility.ControlRoomAuxiliaryConsole,RadiationMonitoringPanelControlRoomAuxiliaryConsole8,9106.1.1.3.d6.1.1.3.f.l6.1.1.3.f.3Arrangementofchairsinterfereswithcirculationpatternsincontrolroom.Thedistancefromdesktopaneldoesnotmeetminimumrequirements.Opposingpanelsnotsufficientlyseparated.RTGBs101,102ReactorProtectionSystemPanelTurbinePanel(Back),DehydratorControlCabinet6.1.1.3.gOpeningsintheprimarypanelsposeadangerfortheentryofunwantedobjects.Various126.1.1.0.a.lNoproceduresstoredinRemoteShutdownControlRoom.RemoteShutdown16266.1.1.6.a6.1.2.3.h.3Supervisor'sOfficelocation.Lackofadequatewritingspaceatconsole.Supervisor'sOfficeReactorProtectionSystemDesk316.1.2.7.aLackofadequatewritingspaceatPrimaryOperatingDeskarea.PrimaryOperatingDeskarea TABLE2.3.3-1ENVIRONMENTSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)FileII3035,363703HEDf6.1.0.2.c6.1.0.2.d6.1.5.1.a6.1.5.6DescritionEmergencyequipmenttraining(fire).LackofRemoteShutdownPaneloperatingprocedure.TheClimateControlSystemdoesnotprovideadequatetemperaturelevels.Inadequatestoragespaceforpersonaluse.LocationFireequipmentlocationsRemoteShutdownPanelN/ALockerarea 2.3AControlsandDisplaysSurvey2.3.0.1Objective-ThepurposeoftheControlsandDisplaysSurveywastoidentifyanddocumentHumanEngineeringDiscrepanciesassociatedwiththecomplementof'controls/displaysexistingatthetimeofevaluationofcontrolsanddisplays.2.3.0.2ReviewTeamandResponsibilities-Thereviewteamconsistedoftwohumanfactorsspecialistswhocollecteddataanddocumentedthediscrepancies.Opera-tionspersonnelavailableinthecontrolroomatthetimeofdatacollectionansweredplant-specificquestionsregardingtheoperator-controlboardinterface.2.3.0.3Criteria-CriteriaforcontrolsanddisplaysarepresentedinthecontrolanddisplaychecklistswhichconsistofNUREG-0700recommendedguidlinesthatareapplicabletocontrolanddisplayevaluation.2.3.0ATaskDefinition/Methodology-TheControlsandDisplaysSurveywasdividedintoanumberofcomponent-specificchecklists(e.g.,meters,rotarycontrols,etc.),eachofwhichwasdesignedtobeusedindependentofallotherchecklists.Allchecklistitemsforaparticularcontrolordisplaytypewereappliedtoeachcomponentinthatclass.AllcomponentsthatdidnotmeetacriterionwerelistedinaHumanEngineeringDiscrepancydiscussingtheprincipleviolated.AllHumanEngineeringDiscrepanciesresultingfromthissurveyarelistedontheappropriatecontrolroominventoryforms,providingFloridaPower8cLightwithalistofdiscrepanciesassociatedwitheachcomponent.Asmanychecklistitemsaspossiblewereansweredusingthephotomosaic,therebyreducingtimespenton-siteandminimizingdisruptionofcontrolroomactivities.Questionsansweredon-sitegenerallyrequiredoperatorinputorvisualclaritynotavailablefromthephotomosaic.2-3.0.5Results/Findings-Forthedetailedassessmentofcontrolanddisplaydesign,approximately100HumanEngineeringDiscrepanciesweregenerated.TheseareintroducedinTable2.3.0-1.57 TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8HEDfDescritionLocation6.0.l.l.a.2Guardedcontrols/easeofadjustment.ReactorProtectionSystem196.0.1.l.b.l6.0.l.l.c.26.0.1.1.e.l6.0.1.2Unguarded/unnecessarycontrol.Inappropriatecontroltype,humansuitability.Labelmaintenance,integrallabels.Pushbuttonseparation.ReactorProtectionSystem,RemoteShutdownPanel,RTGB100H2AnalyzerVariousRadiationMonitoringPanel2021-2526-2930-30366.0.1.2.c.l6.0.1.2.e6.0.2.16.0.2.1.g6.0.2.2.b6.0.3.1.c6.0.3.3.aGuardinterference,control.Lowresistancetocontrolmovement.Directionofcontrolmovement.Control/displaymovementconvention.Componentpositionconsistency.Controlsurfacenotfrictionalized.Legendlight/pushbuttonnotdiscriminable.VariousRTGB100RemoteShutdownPanelRTGBs102,103,105,106RadiationMonitoringPanelRadiationMonitoringPanelRadiationMonitoringPanel TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File0Descrition5052-6061-686970,7172/7370,75767778-8081-836.0.3.3.b.l6.0.3.3.b.36.0.3.3.e.56.0.0.3.b6.0.0.3.d6.0.0.3.e6.0.0.3.f6.0.0.0.b6.0.0.5.b.l6.0.0.5.b.06.0.0.5.c6.0.0.5.d.l6.0.0.5.d.2Inadequatelegendlightcontrast.Inadequatelegendpushbuttoncontrast.Excessivepushbuttonresistance.Orientationofswitchkey."Off"notverticalforkeyswitches.Keyswitchkeyremoval.Missingcontrolpositionlabels.Scalepointercontrastandvisibility.Controlslackdeten't/actuationfeedback.Discreterotarycontrolformat,3600controlpositioning.Fixedpointer/movingscaledisplays.Lackofdisplaypointervisibility.Parallaxfromscaleddisplaypointer.PasqualPanelRTGB101ReactorProtection.SystemAllpanelsControlRoomAuxiliaryConsole;RTGBs102,103,105,106ControlRoomAuxiliaryConsole;RTGBs102,103,105,106ReactorProtectionSystem,RTGB101RTGBs102,100RTGBs102,103RTGB101RTGB102OperatingPanelsReactorProtectionSystem TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File880,858-1617,19-2220-3132/3339,0001-5051-55565972HEDP6.0.0.5.e.36.5.1.1.b6.5.l.l.c6.5.l.l.e6.5.1.1.f6.5.1.2.a6.5.1.2.(b,c)6.5.1.2.d.(l,2)6.5.1.2.e6.5.1.3.b.26.5.1.3.d.36.5.1.5DescritionRotarycontroldimensions,grippingsurface.Parameterunitsnotlabeled.Unnecessaryinformation..Controlpositiondisplayed,notequipmentresponse.Displayfailurenotapparent.Unitsofmeasurement/scalesize.Useofdecimalgraduations,ratherthaninteger.Incorrect/inadequatescaleface.Scalesize,markings,andinformationtransformations.Inconsistentnumeralsize.Controldifficulttouse.Formatofscalegraduation.RTGBs102-106VariousVariousVariousVariousRTGBs101-106RTGBs102,100VariousRTGBs102,105;RemoteShutdownPanel;backofRTGBs102,103RTGBs102,103,106RadiationMonitoringPanelControlRoomAuxiliaryConsole;RTGBs102,103,105 TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8HED0DescritionLocation73757677-806.5.1.5.a6.5.1.5.a.l6.5.1.5.a.36.5.1.5.b6.5.1.5.cFormatforquantitativescales.-Morethannineminormarksbetweennumbers,linearscales.Scaleformat,lackofintermediategraduations.Scaleformat,graduationmarkdimensions..Scaleincrements.RTGBs101,102,103,106;Post-AccidentPanelsA8(BRTGBs101,102,103,105,106ReactorProtectionSystemRTGBs101-105Post-AccidentPanel,RTGBs100-10681-8890-92113110,115116-1306.5.1.5.d6.5.1.5.(e,f)6.5.1.5.f6.5.1.2.(b,c),6.5.2.2.a.26.5.2.2.b.l6.5.2.2.b.2Scalemarkingsinconsistent.-Incompatiblescales.Multiplescales/singlepointer.Numbersincreasetop-to-bottom;right-to-left.Pointerobscuresinformation.Pointertoowide.Displaypointerparallax.VariousRTGB105RTGBs101,103,100RTGB103,andbackofRTGBs102,103AllpanelsRTGBs102,105ControlRoomAuxiliaryConsole,RemoteShutdownPanel,.RTGBs101-106 TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8135-139153-166..167-169170171-173170-177195,196206-207208209-211210,215HED06.5.2.2.c6.5.2.3.a6.5.2.0.b.26.5.2.0.c.l6.5.2.5.6.5.3.16.5.3.l.c.l6.5.3.2.a.l6.5.3.3.a.26.5.3.3.a.36.5.0.l.aDescritionPointervisibility.Setpointcodinginconsistency.Nullpointorientation.Incorrectscaleface.Fixedpointer/movingscale.Pointersobscureindicator(setpoint)lights.Lightextinguishmentdenotesmalfunction.Indicatorlightmeaningambiguous.Unlitlegnedlegibility.Legendcoverinadequatereadability.Recorderreadability.LocationRemoteShutdownPanel;ReactorProtectionSystem;Post-AccidentPanel;RTGBs102,103RTGBs101,102,103,106RTGBs101,102,103,106;LineRepeatRTGB101RTGBs102,103,105;RemoteShutdownPanelRTBGs102,103,105,106RTGB101ControlRoomAuxiliaryConsole,RTGB105ReactorProtectionSystemRTGBs103,100RTGB101,RadiationMonitoringPanel 0

TABLE2.3.0-1CONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)FileII216-222223220230235,236208-250251252-250255256257HED86.5.0.l.b6.5.0.1.c6.5.0.1.d6.5.0.1.g6.5.0.1.i6.5.0.2.a.26.5.0.2.b.l6.5.0.2.b.36.5.0.2.b.06.5.5.16.5.5.1.a.3DescritionRecorderpaper/scalemismatch.Greaterthannineminormarks,TrendRecorders.Recorderpapertake-up.Marked/actualtime,recorderstamping.Recorderspeedadjustability.UnidentifiedRecorderpencolors..Channel/scaleoverload.Recorderreadability.Recorderchannelselection.Incorrectmimic.Groupingofdisplaynumerals.RTGBs101-105,ControlRoomAuxiliaryConsole,Post-AccidentPanel,RadiationMonitoringPanelRadiationMonitoringPanelRTGB101AllpanelsAllpanelsRTGBs101,100,105;RadiationMonitoringPanel,Post-.AccidentPanelRTGBs101,102,106;RadiationMonitoringPanelRTGBs101,102,106AllpanelsRemoteShutdownPanelRTGB101 TABLE2.3A-lCONTROLRDISPLAYSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)FileII261,262259260261,262263,260265HED46.5.5;l.a.56.5.5.l.c.l6.5.5.2.a.26.5.5.2.a.56.5.5.2.b6.5.5.2.c6.8.3.1DescritionDisplayglareandreflectance.Counterdrummovement.Characterstyle.Separationbetweennumerals(counter).Readability/rateofmotion.Displaycontrast.Controlsdosetogether.LocationRTGB101=RTGB101RTGB103RTGB105ReactorProtectionSystemRTGB100-RTGB100

TABLE2.3.5-1CONVENTIONSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)HED0DescritionLocation356.0.2.2.aRotariesdifferentiatedbytypesdonotreflectadifferentfunction,system,etc.RTGBs102,105,10637-0051696.0.2.2.d6.0.2.2.e6.0.0.1.b6.5.1.0.dThereisanabsenceofshape-codingforthosecontrolsthatmustbeblindlymanipulated.Rotatingknobsfordifferentcontrolactionsnotdistinguishablebysightandtouch.Arraysofcontrolsforwidelydifferentfunctionsnotdistinguishable.Absenceofplantconventionsandconsistencyfortheuseofabbreviations.AllpanelsRTGB100,ReactorProtectionSystemRTGBs105,106N/A93-976.5.1.6.c.lInconsistentapplicationofcolorcodingbasedonNRCconventions.Allpanels99-1086.5.1.6.c.26.5.1.6.d.(1,2,3)Red,green,andamberarenotreservedforconventionalmeanings.InconsistentapplicationofcolorcodingbasedonFPRLconventions.AllpanelsAllpanels100-152212-2136.5.2.36.5.3.3.cLackofscalefacecodingtoenhancerecognitionofparticularoperatingbands.Designsoffunctionallydifferentcomponentsarehighlysimilar.AllpanelsAllpanels 0

2.35ConventionsSurvey2.3.5.1Objective-TheobjectivesoftheConventionsSurveywereto:oIdentifyplantconventionsoDetermineiftheyareacceptablebyhumanfactorsstandardsoLocatedeviationsfromconvention.2.3.5.2ReviewTeamResponsibilities-Theevaluationteamwascomposedofahumanfactorsspecialistandacontrolroomoperatorasrequiredtosupplyinformation.Responsibilitiesincludedthecollectionandanalysisofmeasurementsanddata.2.3.5.3CriteriaoComponentsand.systemarrangementforeaseinlocatingcomponentsandconductingaccurateoperationperNUREG-0700guidelines.oCodingsystem(includingsize,shape,andcolorcoding)anduseofsymbols,signals,andabbreviationsforuniformityandappropriateapplicationsthroughoutthecontrolroomperNUREG-0700guide-lines.2.3.5ATaskDefinition/MethodologyInterview-Controlroomoperationspersonnelwereinterviewedtodeterminewhatconventionsexistinthecontrolroomrelatedtoarrangementofsystemsandcomponents,coding,abbreviationsandacronyms,andcontroloperation.Itwasalsodeterminedwhetherornotconfusionexistedduetocertainconventions,deviations,orlackofconventions.Sample-Asamplingofcomponents,systems,labels,andotherperformanceaidswereusedtoverifyinterviewfindings.If50%ormoreofeachgroupweresimilarinarrangement,coding,andoperation;thenaconventionwasassumedtobeestablished.Anydeviationwasreported,aswellaslackofconvention.Checklist-Achecklistingprocedurewasemployedtodetermineifexistingconventionsareacceptablebyhumanfactorsstandards.Someitemsrequiredoperatorassistance.2.3.5.5Results/Findings-FloridaPowerRLighthasacolorcodingconventionwhichissomewhatconsistentwiththeNUREG-0700codingconvention,however,majorativemeaningsattachedtospecificcolorsarenotalwaysappliedassuch.AnotherapplicationofcodingintheSt.LucieUnit1ControlRoomentailsuseofcolordotsonpanelcomponentsto'denotenominalequipment(e.g.,valves)statusfordifferentlevelsofsafetyfeatureactivation(i.e.,safetyinjection,containmentisolation,safetyinjectionrecirculation,etc.).Thissystemwasconsistentlyandreliablyappliedandseemstobeaneffectivecodingandjob-aidingtechnique.66 000 Givencontextualinformationintheuseofcolorcoding,thecodingattheSt.LucieUnit1ControlRoomisnotnecessarilyerror-inducing.Divergentcodingtechniquesarebasciallyconsistentfromapplicationtoapplication(e.g.,radiationcolormeaningsareconsistentontheRadiationPanel,ReactorProtectionSystemPanelcolor'meaingsareconsistent,etc.).Table2.3.5-1summarizesHumanEngineeringDiscrepanciesidentifiedbytheConventionsSurvey.67

TABLE2.3.5-1CONVENTIONSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File818,19,21-2326-3637-39HED86.8.2.1.(a.2,a.3,c)6.8.2.2.(a,b)6.8.2.3.aDescritionDisplaysarenotarrangedintheconventionaloperatingsequence.Displaysarenotarrangedintheconventionaloperatingsequence.Functionallysimilarcontrolsarenotsimilarlylocated.LocationAllpanelsAllpanelsRTGBs103,106506.8.3.2LargematricesofsimilarcomponentsarenotRTGBs102,103,105,106subdividedbydemarcationorothermethod.

2.3.6ProcessComputerSurvey2.3.6.1Objective-TheobjectiveoftheProcessComputerSurveywastoevaluatethesystemhardwareandoperationalcharacteristicsoftheprocesscomputeruser-systeminterface.IncludedinthisevaluationweretheDigitalDataProcessingSystem,SequenceofEventsRecorder,FirePanel,RadiationMonitorConsole,andMetrascope.SequenceofEventsRecorder-TheSequenceofEventsRecorderislocatedintheprimaryoperatingareaandhasan'outputcapacityofapproximately120charactersper~second(CPS).Thebackupprinterisateletypelocatedbehindthemaincontrolpanels.Eventsareprintedinthefollowingformatonbothprinters:NORMALDAY:YEARHOUR:MINUTESECOND:MILLISECONDPOINT//EVENTDESCRIPTORABNORMALDigitalDataProcessingSystem-TheDigitalDataProcessingSystemisaFisherandPortersystemdesignedtoperformcalorimetricandxenoncalculations,monitorCEAposition,monitorandcontrolmovableincoredetectors,andprovidevariousparametervalues.OperatorsinterfacewithaconsoleandamediumspeedprinterlocatednexttotheReactorProtectionSystem.Allotherpartsofthesystem(teletype,cardreader,etc.)arelocatedbehindthemaincontrolboards.Metrascope-TheMetrascope,locatedonRTGBl00,isaCRTwhichdisplayscontrolrodpositionandPowerDependentInsertionLimit!Pre-PowerDependentInsertionLimit.Ithastwocontrols:acursortoselectanindividualrodfordisplayofpositionandadiscreterotarywhichisassociatedwithdisplayofthePowerDependentInsertionLimit/Pre-PowerDependentInsertionLimit.FirePanel-TheFirePanelisaHoneywellsystemwhichconsistsofaprinter,keyboard,andprojectiondisplaywithaslidefile,andislocatedbesidethePost-AccidentPanel.Datamaybeaccessedusingthekeyboard,withtheprinterfunctioningastheonlyoutputdevice.Pointsmaybeprintedbygrouporindividually,andallout-of-toleranceconditionsareprintedatthetimethesignalisreceivedandagainonthehouraslongastheyremainout-of-tolerance.Dataareprintedinthefollowingformat:Three-characterproblemdescriptorTwo-digitunitidentifierTwo-digitchannelidentifierTwo-digitareaidentifierTheproblemdescriptorwillbeoneof'hreetypes:FA.(fire),ALM(shortincircuitordetectortakenoutofservice),orTBL(faileddetector).Thelastfourdigitsareusedwithachartfoundinthesystemprocedure(OP1800021)whichlistsslidenumbersandarea69 Idescriptors.Theoperatormustusethelisttodeterminethelocationoftheproblemand,ifapictureoftheareaisnecessary,theslidenumber.Theslidenumberisthenselectedontheprojectiondisplayandamapoftheareaisshown.TheaudiblealarmislocatedaboveRTGB100andalertsoperatorstoanabnormalcondition.TheoperatormustthengototheFirePanelandsilencethecontrolroomalarm.Analarmalsosoundsintheareaofthefireandmustbesilencedlocally.Thecontrolroomoperatorthereforedispatchessomeonetoinvestigatethesituationandtosilenceandresetthelocalalarm.RadiationMonitor-TheEberlineMicrocomputerControlledRadiationMonitoringSystemi'slocatedneartheNuclearPlantSupervisor'soffice.Operatorsinterfacewithanoperatingconsolewhichhasanintegralprinterandapanelcontainingmetersandtrendrecorders.Thesystemmonitorsradiationandcontamiriationlevels.Abnormalconditionsprecipitateanaudiblealarmandprintoutofthedescriptorandparametervalue.Thesystemwhichhasbeeninstalledwithinthelastyearsupplements,andhaspartiallyreplaced,theexistingVictoreenpanels.Theconsoleconsistsoftwokeypads,onewithinstructionkeysandtheotherwithdatakeysfourlegendlightsandonelegendpushbutton;andvariouskeyswitchesandrotarycontrols.Theconsolealsocontainsaprinterusingpaperapproximatelythreeincheswide.2.3.6.2ReviewTeam-Thereviewteamincludedhumanfactorsengineer,controlroomoperators,andinsomecasestheinstrumentationandcontrolengineerresponsibleforthesystemunderevaluation.OperationandinterpretationoftheDigitalDataProcessingSystemandSequenceofEventsRecorderwillbesimilarbetweenSt.LucieUnits1and2;therefore,thecomputer-cognizantengineersatSt.LucieUnit2wereinterviewedtosupplementinformationsuppliedbySt.LucieUnit1controlroomoperators.2.3.6.3Criteria-.ApplicablecriteriaarefromSection6.7NUREG-0700,andarehdetailedintheProcessComputerChecklist(seeAppendixA).2.3.6.0TaskDefinition/Methodology-Computer-cognizantinstrumentationandcontrolengineerswerequestionedaboutsystemhardwareandsoftware.Theywereaskedbothtodescribeinputmethodsandinterpretdatatooutput.Acopy,ofhourlylogswasobtainedwhenpossible.Applicablechecklistsectionswerereferencedateachsteptoobtainappropriatecriteria.Printeroutputswereevaluatedforformat.Controlroomoperatorswereaskedtodescribetheirinteractionswiththesystem~(e.g.,whenandhowtheyaccessdataandhowtheyusetheinformationtheyobtain).Thesystemwasthenevaluatedintermsofitssuitabilitytomeetoperationalrequirements.70 Thecomputersystemwasevaluatedusingoperatingproceduresandprintoutsandinterviewswithcomputer-cognizantinstrumentationandcontrolengineersandoperators.Whenavailable,computeroperatingprocedureswerealsoevaluatedtoensurethattheyprovidesufficientinformationtoallowatrainedoperatortousethesystem.HumanEngineeringDiscrepancyreportswerewrittendetailingalldiscrepanciesnoted.2.3.6.5Results!Findings-Overallthecomputersystemdiscrepanciesidentifiedstemfromthedetaileddesignofthevendorcomponents.Manydiscrepancies,however,concernissuessuchasswitchpositioning,layout,etc.AnumberofHumanEngineeringDiscrepanciesweregeneratedbytheProcessComputerSurveyandaresummarizedinTable2.3.6-1.71 TABLE2.3.6-1PROCESSCOMPUTERSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)Filef1,2,3HED86.1.1.1.b6.1.1.2.a6.7.1.0.bDescritionPanellocationoutsideprimaryarea.Controlroomtaskassignments.Pushbuttonarrangment.LocationRadiationMonitoringPanel,FirePanelRadiationMonitoringPanelInternalsVibrationMonitor5,66.7.1.0.16.7.1.5.d.16.7.1.5d.26.7.1.8.a.l6.7.1.8.a.O.b6.7.1.8.a.O.cUnusedpushbuttons.Keygroupinglayout.Distinguishabilityofvariouskeys.Computeruseprocedureavailability.Keysnotdiscussedinprocedure.Procedurecontent,comprehensibility.DigitalDataProcessingSystemDigitalDataProcessingSystemDigitalDataProcessingSystemDigitalDataProcessing.System,SequenceofEventsRecorder,RTGB100FirePanelDigitalDataProcessingSystem TABLE2.3.6-1PROCESSCOMPUTERSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File01012162021HED86.7.1.8.a.S6.7.1.8.b.l6.7.2.1.a6.7.2.1.(a,b)6.7.2.l.c.26.7.2.1.c.O6.7.2.l.h6.7.2.2.f.l6.7.2.2.f.2.d6.7.2.0.n6.7.2.7.bDescritionComputerfailure.Labelingofalarmgroups.CRTcontrast,brightnessreadability.CRTreadabilityandrpflectedglare.CRTambientilluminiationandcharacter,color.CRTscreenluminance.CRTadjustability.CRTcharacterandlineseparation.CRTmessagereadability.Inconsistentlabelplacement.Usabilityofinformation.LocationRadiationMonitoringPanel,DigitalDataProcessingSystem,SequenceofEventsRecorder,FirePanelSequenceofEventsRecorderRTGB100RTGB100RTGB10IFRTGB100RTGB100RTGB100RTGB100RTGB100RTGB100

TABLE23.6-1PROCESSCOMPUTERSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File822-20HED86.7.3.l.cDescritionPrintingofnon-existentpoints,decodingandinterpretationrequirements.LocationRadiationMonitoringPanel,DigitalDataProcessingSystem,FirePanel256.7.3.1.dPrinterspeedinsufficient.SequenceofEventsRecorder26,27,2829,306.7.3.2.e.26.7.3.1.e.3Printerlackspositiveindicationthatpaperisrunningout.Lackofprinterpaperreloadinginstructions.RadiationMonitoring.Panel,DigitalDataProcessingSystem,SequenceofEventsRecorder,FirePanelRadiationMonitoringPanel,FirePanel,DigitalDataProcessingSystem,SequenceofEventsRecorder316.7.3.l.f.lPrinteddatavisibility.RadiationMonitoringPanel,SequenceofEventsRecorder326.7.3.l.f.ORecordedmatterobscuredbynoiseattenuator.RadiationMonitoringPanel336.7.3.2Contentofalarmmessages,informationmeaningisnotapparent.SequenceofEventsRecorder TABLE2.3.6-1PROCESSCOMPUTERSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File0303536HED86.7.3.3.d.l6.7.3.3.d.26.7.3.3.d.3DescritionTablehorizontalspacing.Tableverticalspacing.Spacingbetweencolumns/indexing.SequenceofEventsRecorderSequenceofEventsRecorder,DigitalDataProcessingSystemSequenceofEventsRecorder 2.3.7EmergencyGarmentsSurvey2.3.7.1Objective-TheobjectiveoftheEmergencyGarmentsSurveywastoidentifyHumanEngineeringDiscrepanciesassociatedwiththeuseofemergencygarmentsandbreathingapparatus.UsingchecklistsdrawnfromNUREG-0700andastandardrhymetest,theemergencygarmentsandbreathingapparatuswereevaluated.Theevaluationconsistedofanthropometrics,communicationswhilewearingbreath-ingapparatus,storageandplacementofemergencygearinthecontrolroom,theeaseofaccesstoanddonningofemergencygear,andoperationofthecontrolboardswhilewearingemergencyclothing.2.3.7.2ReviewTeamResponsibilities-TheevaluationteamwascomposedoftwoEssexCorporationstaffmembers,oneutilitystaffmemberfromtheHealthPhysicsDepartment,andonecontrolroomoperator.TheEssexstaff,composedofresearchscientistsandassociates,servedashumanfactorsspecialists.Utility'HealthPhysicspersonnelfunctionedasoperationsspecialistsandevaluationprocessexpediters.Theexperienceofthecontrolroomoperatoraidedinidentificationofplant-specificdiscrep-anciesrelevanttothesurvey.2.3.7.3Criteria-Thecontrolroomemergencygarmentsshouldnotrestrictthecontrolroomoperatorfromperformingassignedtasks.OperatorProtectiveEquipmentoTypesofEquipment-Protectiveequipmentincludesprotectiveclothingandbreathingapparatus.'oAnthropometry-Protectiveclothingandbreathingequipmentarecompatiblewithoperatorbodysizeandtaskstoprovideadequatetactilesensitivityandabilitytosee,reach,move,communicate,andhear.oPeriodicChecks-Operatorprotectiveequipmentisperiodicallycheckedtodetermineifitisingoodcondition.oQuantity-Protectiveequipmentisavailableinsufficientquantitiesandsizesfortherequirednumberofoperators.oMarking-Protectiveclothingsizesareclearlyidentifiable.oExpendables-Thereisanadequatesupplyofpersonalprotectionequipmentexpendables,suchasfilters.oAccessibility-Allprotectiveequipmentiseasilyandreadilyaccessible.oTraining-Operatorsarewellpracticedindonningprotectiveequip-ment.oProcedures-Instructionsfordonning,doffing,andcontrollingper-sonalprotectiveequipmentareprovided.76 EmergencyCommunications-VoiceCommunicationswithMasksoEmergencyfacemasksareequippedwithdiaphragmsthatarespeciallydesignedtotransmitspeech.oThediaphragmsseparatevoicefromexhaustvalveaction.oIfnotequippedwithdiaphragms,masksareequippedwithelectronicspeechsystemswhichpickupthevoicewithaninternalmicrophoneandtransmitittoaloudspeakerattachedoutsidethemask.2.3.7.0TaskDefinitions/Methodology-AhumanfactorsspecialistwithHealthPhysicstrainingobservedandtimedHealthPhysicspersonneldressingoutinanti-contaminationclothing.Overalltimeandtasktimes,alongwithpertinenthumanfactorsobservations,wererecorded.Atouch-and-feeltestfortheidentificationofanassortmentofhand-heldobjectswasconductedwithasubjectwearinganti-contaminationgloves.Asubjectwasobserveddonningthebreathingapparatus.Overalltimeandtasktimesalongwithpertinenthumanfactorsobservationswererecorded.Amodifiedrhymetestrequiresasubject(listener)toidentifyasetofspokenwordsfromalistofphoneticallysimilar(rhyming)words.Amodifiedrhymetestwasconductedwiththetalker'wearingthebreathingapparatusmasktotesttheintelligibilityofspeechwhenattenuatedbythemaskfaceplate.Thetestwasthenrepeatedusingamaskequippedwithanelectronicspeechsystem.Thetalker'sinstructionsusedduringthetestwere:l.EachlistV/ASPRESENTEDBYthefollowingstatement:,"Thisistest",wheretheblankwasreplacedwiththelistidentificationletterfoundatthebottomleftcorneroftheTalker'sList.2.Eachwordwasembeddedinthecarriersentence"Pleasecircleingroup",wherethefirstblankwasthetargetwordfromtheTalker'sListandthesecondblank-wasthewordgroupnumberfromthecorrespondingListener'sSheetcontainingthetargetword.3.Thepresentationratewasapproximately0secondsbetweentargetwords.77

2.3.7.5Results/Findings-SincetheemergencyequipmentusedintheSt.LucieUnit1ControlRoomisidenticaltothatusedintheSt.Lucie,Unit2ControlRoom,theevaluationwasconductedonlyonce.Therefore,theresultsandfindingsforthissurveypresentedinboththeSt.LucieUnit1andSt.LucieUnit2DetailedControlRoomDesignReviewsarethesame.Table2.3.7-1summarizesHumanEngineeringDiscrepanciesidentifiedduringthissurvey.Whenreviewingfindingsinthissurvey,thefollowingshould.beconsidered:TheSt.LucieUnit1ControlRoomisenvironmentallyprotectedfromtheexternalenvironment;therefore,theuseofanti-contaminationclothingisnotantici-pated.Inaddition,thereare=notechnicalspecificationrequirementsforanti-contamincationclothinginthecontrolroom.Controlroomuninhabitabilityduetofireistheonlypostulatedeventrequiringemergencyprotectiveequipment.Belowgeneralresultsandconclusionsarediscussed.Anti-contaminationclothingdressoutwasaccomplishedinatotalof5.11minutes,withindividualtasktimesasfollows:oOveralls-0.38minutesoBootsandtapeup-1.16minutesoGlovesandtapeup-3.17minutes.Hand-heldobjectssuchaspencils,pens,andpocketkniveswereidentifiedcorrectly.Onlycoinscouldnotbeidentifiedbysizeduetothelackoftactilefeedback.Digitaccommodationingloveswasobserved.Itwasfoundthatthesmallfingeristooshort,thelargefingeristoolong,andtheglovedoesnotsitonfingerwebbing.Donningthebreathingapparatusrequired3.30minutes,withindividualtasktimesasfollows:oOutofcase-1.30minutesoDonbeathingapparatusandadjustharness-1.24minutesoDonmaskandadjustairflow-0.36minutes.Itwasfoundthatwhilewearingrespiratorsandairpacks,visionisblurred,andrestrictedvisionoccurswithalossofperipheralvision.Communicationisunclear.Thedefoggerdoesnotfunctionwellsincethemaskfoggedupimmediately.TheresultsofthemodifiedrhymetestindicatedthatspeechintelligibilityishighlyimpededbythefacemaskaspresentlyusedontheScottAirPack;56%ofthewordsspokenwerecorrectlyidentified.Themasksignificantlymuffledandattenuatedthespokenwords.Atadistanceof5feetthevoicelevelofthespeakerwiththemaskonwas 55dB;thevoicelevelofthespeakerwithoutthemaskwas65dB.Themaskdoesnotincorporateanamplifierordiaphragmyithwhichvoicecommunicationcouldbeimproved.Therearenowrittenproceduresfordonningandcontrollingprotectiveclothing.However,donninganddoffingprotectiveclothingisaddressedaspartofthetrainingprogram.ControllingprotectiveclothingistheresponsibilityoftheHealthPhysicsDepartment.Inaddition,storageofprotectivegarmentscanbeconfusingforthosedressingoutbecausegarmentsarenotgroupedasapackageororganizedbysize.Basedonthemodifiedrhymetest,itwasconcludedthatcommunicationfunctionswhilewearingprotectivegearareimpeded.TheusabilityofcommunicationsequipmentisnotcompatiblewiththepresentdesignofthefacemaskandtheScottAirPack.Thisispartiallyduetothelackofadiaphragmorelectronicspeechdevicetoseparatevoicefromexhaustvalveactions.79 0

TABLE2.3.7-1EMERGENCYGARMENTSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File83233HED86.1.0.1.(e,g)6.1.0.l.i6.2.1.8.bDescritionSizesforprotectivegarmentsarenotgroupedororganizedtoaffordeasyaccess.Noprovisionforprocedures/instructionsfordoffing,donning,andcontrollingprotectiveequipment.Communicationsfunctionsareimpededwhileusingprotectivegear.N/AN/AN/ALocation6,7,106.0.l.l.dControlidentificationisimpededwhilewearingprotectivegear(gloves).Allpanels8,911-176.0.I.I.d.(I,2)6.0.l.l.d.2Identificationandoperationofinstrumentsisimpededwhileusingbreathingmask.Controluseisimpededwithemergencyclothing(gloves).AllpanelsAllpanels

2.3.8LabelsSurvey2.3.8.1Objective,,-TheobjectiveoftheLabelsSurveywastodeterminetheappropriatenessandclarityoflabelinginthe'ontrolroomtoenhanceoperatorperformance.2.3.8.2ReviewTeamResponsibilities-Ahumanfactorsspecialistwasresponsiblefordatacollection,analysis,andreportpreparation.Acontrolroomoperatorwasrequiredtoassistincollectingthenecessaryinformationandtoadvisethehumanfactorsspecialistofproblemsthathavebeenencountered.23.8.3Criteria-ThecriteriausedforthelabelingsurveyarecontainedinthelabelschecklistandarepresentedinAppendixAofthisreport.2.3.8.0TaskDescription-Allcomponents,panels,andsystemsrequiringidentifi-cationandmanipulationwereexaminedtoensurethattheywerelabeled,aswerethepositionsofalldiscretecontrols.Inaddition,thelocationandorientationofeachlabelwereevaluatedforreadabilityandconsistency.Panelswithouthierarchicallabelingwereidentified.Labelcontentwasreviewedforclarity,brevity,andspelling.Labelreadabilitywasevaluated.Measurementsincludedcharacterheight,width,width-to-'heightratios,andvisualanglesubtendedattheeye;strokewidth-to-characterheightratios;spacebetweencharacters,wordsandlines;andcharacter-to-backgroundcontrast.Typestylewasassessedforconsistency,simplicity,anduseofallcapitalletters.Componentswithuniquelabelingrequirements(e.g.,contrastonelectroniccounters)wereevaluated.Temporarylabels,includingequipment"tag-outs",wereassessedtoensurethattheyconformwithhumanengineeringcriteriaappliedtopermanentlabels.Theprocedureforaddingatemporarylabeltotheboardwasevaluated.2.3.8.5Results/FindingsNeedforLabeling-Manycomponentslacksufficientdescriptivelabeling,andsomehaveonlytemporarydynatapelabels.SeveralTrendRecordersaremissinglegendcardstoidentifythepen'snumericalorcolorcoding.Itisrecommendedtoemployhierarchicallabelingwhichgraduateslabelletterheightstorepresentthehierarchyofcomponents,theirparts,andtheirfunctionalgrouping.Inotherwords,lettersizeongrouplabelswouldbelargestfollowedbycomponentlabelswith25%smallerlettersizefollowedbyswitchpositionlabelswith25%smallerlettersizethanthecomponentlabel.Adesignofthistypewasnotfound.LabelLocation-Itwasfoundthatsomelabelsarepositionedabovecomponents,othersarepositionedbelowortothesideofcomponents.Thisisinconsistentandisa sourceofconfusioninlocatingandidentifyingcomponents.Labelsarenotalwayslocatedcloseenoughtothecorrespondingcomponent,causingpotentialerrorsinidentification..)Insomeinstancesadjacentlabelsappeartobecontinuousduetotheircloseproximity.Theseparticularobservationsexistprimarilyduetospacelimitationsonthepanels.Itwasalsoobservedthatlabelsarenotalwaysmountedsecurely,ortheyarenotpositionedtopreventvisualobstructionbyacomponentdoor.Itwasfoundthatsomedisplayshavelabelsorcalibrationstickersplacedonthedisplayfacewhichmayobscureinformation.Alsoidentifiedwasaparticularcontrolhandledesignwhichobscurespositionlabelsduetoitssizeanddimensions;however,thisproblemmaybe,insomecases,alleviatedbyrelocatingandenlargingthelabels.LabelContent-Labelsoftenlacksufficientcontentorhaveinaccurateorambiguousdescriptions.Otherlabelscontainexcessiveorunnecessaryinformation.Wordselectionshouldbebrief,butclear.Itwasfoundthatsomecontrolpositionsareunlabeled.Labelshaveinconsistentabbreviationsanduseabstractsymbolswhichmayleadtodifferentinterpretations.Maintenance-Itwasfoundthatpermanentlabelshavebecomedirtyfromthecollectionofgrimeanddust,andadministrativeproceduresforperiodiccleaningarelacking.Thisconditionsignificantlyreducesreadability.Inaddition,theselabelsdonotconformtohumanengineeringstandardssuchassecuremounting,readability,andplacementtoprecludetheobstructionofadjacentcomponents.LabelFormatandReadability-Itwasfoundthatoverallthereisanabsenceofstandardsforlabelletteringincludingheightandsize.Characterheightsvaryfromonecomponenttoanother,andlowercaselettersaresometimesused.Thecharactersizeisgenerallyinadequateforthemaximumviewingdistance.Itwasalsofoundthatinadequatecharacterheights,strokewidths,andspacingbetweenlinessignificantlyreducesreadability.Finally,itwasfoundthatlowcharacter-to-backgroundcontrast,Cparticularlyonthelegendlights,preventseaseandaccuracyinlabelreading.LocationAids-Thereisminimaluseoflocationaids.Theuseofdemarcation,color,andmimicsishighlydesirableandhasbeenproventoenhanceoperatorperfor-mance.Demarcationlinesarequiteusefultoenclosefunctionally-relatedgroupsofcomponents,therebyreducingoperatorsearchtimeandidentificationerrors.ItwasfoundthattheuseofamimiconRTGB101andtheLineRepeatPaneliseffectiveinaidingoperatorperformance.However,thedesignofthemimicsisincomplete.Flowdirectionsarenotclearlyindicated,andnoneoftheoriginandterminationpointsarelabeled.82 Theemploymentofsummarylabels,standardizedabbreviations,andstandardizedlabel,characteristics;incorporationoflocationaids,wherepossible;andstandardizationoflabelplacementwherespaceandviewingangleallowwillalleviatethemajorityofproblemsassociatedwiththeSt.LucieUnit1ControlRoomlabeling.Implementationoftheabovewillprovidethecontrolroomoperatorwithamuchmoreusablelabelingandlocatingsystem..Table2.3.8-1providessummariesofHumanEngineeringDiscrepanciesidentifiedbytheLabelsSurvey.

TABLE2.3.8-1LABELSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File05760-6566,6770HED86.5.1.3.c.26.5.1.1.(e,e.l)65.1.3.d6.5.1.0.a6.5.1.0.b6.5.1.0.c6.5.1.0.fDescritionInsufficientlabelcontrast.Labelinaccurate;displayscontrolposition,not.equipmentstatus.Inadequatecharacterdimensionsandspacing.Unitsofmeasurementnotvisible.Manufacturer'snameondisplayface.Labelingisredundant.Missingunitsofmeasurementorrequiredtransformations.LocationAllpanelsReactorRegulatorSystemRadiationMonitoringPanelRTGB101,Post-AccidentPanelAllpanelsRTGB101-RTGB102237-202203-2072091-136.5.0.l.k6.5.0.2.a.l6.5.0.2.a.26.6.1.1Labelobscuresinformation.Pencolorlabeling.Inkcoloridentification.Labelabsent,inconsistent,incomplete.RTGBs101-100RTGB100,Post-AccidentPanelA,RadiationMonitoringPanelRTGB103RTGBs101,102,103,100106;LineRepeatPanel;RadiationMonitoringPanel TABLE2.3.8-1LABELSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs).File810-16HED86.6.1.2.a.2DescritionLackofgrouplabeling.LocationLineRepeatPanel,Post-AccidentPanel,RadiationMonitoringPanel1718-2930-0001-0607,086.6.1.2.a.36.6.1.2.b.(1,2,3)6.6.2.1.a6.6.2.l.d6.6.2.1.fComponentlevellabeling.Hierarchicallabeling.Inconsistentlabelplacement.RemoteShutdownAllpanelsAllpanelsAdjacentlabelsappearcontinuous.RTGBs102,105Labelproximitytooneanotherandcomponent.Allpanels50-505556-616.6.2.2.a6.6.2.3.a6.6.2.06.6.2.0.aLabelscomingoff.Labelorientation.Labelsnotvisible.Labelobscuresinformation.ReactorProtectionSystemRTGBs101,102,103,105,106AnnunciatorPushbuttonsRTGBs101-106,Post-AccidentPanel62--736.6.2Ã.b6.6.2.0.cLabelconcealment.Labelnotvisible.AllpanelsControlRoomAuxiliaryConsole TABLE2.3.8-1LABELSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File075-7778-8990-9799100-108HED86.6.2.0.d6.6.3.1.(a,b)6.6.3.2.(a,b)6.6.3.2.d6.6.3.2.f6.6.3.3.(a,b)DescritionLabelmaintenance.Labelincomplete,unclear,inaccurate.Contentexcessiveorinadequate.Inconsistentwording.Labelspelling.InconsistentabbreviationRlabeling.LocationAllpanelsRTGBs101,102,103;LineRepeatPanel;FeddwaterRegulatingRackRTGBs102,103,106;ReactorProtectionSystemRadiationMonitorRTGB102Post-AccidentPanel;ReactorProtectionSystem;RTGBs102,103,1001091106.6.3.0.a6.6.3.0.b6.6.3.5112-119'.6.3.6120-1256.6.3.7.aUseofabstractsymbols.Letter/labelnumbernotdistinguishable.Unnecessaryinformation.Labelshighlysimilar.Lackoffunctionalgrouplabel.RTGB101AllpanelsRTGB101AllpanelsAllpanels

TABLE2.3.8-1LABELSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)126-129130-130135,136137HEDf6.6.3.7.b6.6.3.8.a6.6.3.8.b6.6.3.8.cDescritionGrouplabelplacement.Unlabeledcontrolposition.Unidentifieddirectionofmotion.Positionlabelobscured.LocationRTGBs101,100,105LineRepeatPanel;RTGBs101,103,106;ReactorProtectionSystem;RadiationMonitoringPanelAllpanels,RemoteShutdownControlRoomAuxiliaryConsole139,100101-150151-156157158159,1601616.6.0.1.a.l6.6.0.l.a.26.6.0.1.b.l6.6.0.26.6.0.2.a.l6.6.0.2.(c,d)6.6.0.2.d.(1,2)Inadequatecharacterheightsformaximum-viewingdistance.Characterheightsvary.Letteringcontrast.Labelspacing/strokewidth.Useoflowercaselettering.Labelspacingandstrokewidth.Labelnotreadable.RTGB101RTGBs101,102,105,106RTGBs102,103,100,105AllpanelsRTGB101'llpanelsRTGB102 TABLE2.3.8-1LABELSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8162163,160165-172173,170175-177178-18110-16HED86.6.0.2.d.36.6.5.i.a6.6.5.1.(a,b)6.6.5.1.(d-b)6.6.5.2.(a,b)6.6.6.0.b.(0,5)6.8.1.3.(b-d)DescritionInadequatelinespacing.Useoftemporarylabels.Useoftemporarylabels.Useandcontroloftag-outlabeling.Useandcontroloftemporarylabeling.Incompletemimic.Mimicarrangementincomplete.AllpanelsRTGB101AllpanelsAllpanelsAllpanelsRTGB101RTGB101 2.3.9AnnunciatorSurvey2.3.9.1Objective-TheobjectiveoftheAnnunciatorSurveywastoassesstheoperabilityandusabilityofthesystemusingtheguidelinesoutlinedinNUREG-0700,andtodocumentandassessallresultingdiscrepancies.2.3.9.2ReviewTeamResponsibiTities-ThemembersofthereviewteamincludedIahumanfactorsspecialisttoconducttheannunciatorsurvey;anuclearoperationsspecialisttosupplyplantsystemsinformation(i.e.,interrelationshipofvariouscompo-nents,theimpactoflossofapumponplantoperations);andaplantinstrumentationandcontrolengineertoanswerquestions,provideinformation,andobtainanynecessarydocumentationforcompletionofthistask.2.3.9.3Criteria-ThecriteriausedtoevaluatetheannunciatorsystemaredescribedintheAnnunciatorChecklist.ThespecificcriteriaforeachsubtaskarecontainedinAppendixA.2.3.9.0TaskDefinition/Methodology-Thissurveywasconductedby:1)applica-tionofchecklists,and2)byverificationofoperatorconcernsidentifiedduringoperatorinterviews.Thechecklistswereseparatedintotwomajorparts:visualdisplaysandauditorywarnings.Thesechecklistsaddressedmaintainability,identification,coding,operation,andarrangementsoftheannunciatorsystem.Thechecklistingwasdesignedtobeconductedon-site.Operationspersonnelwereinterviewedaboutthesystem,andwereaskedtodemonstratethealarmsystemsoperability.Observationsandnotationswererecordedonthechecklistsheets.Forthoseitemsfoundtobeinconflictwithchecklistcriteria,HumanEngineeringDiscrepancyreportswerewritten.2.3.9.5Results/Findings-Table2.3.9-1presentsHumanEngineeringDiscrep-anciesidentifiedbytheAnnunciatorSurvey.Theannunciatorsystem,ingeneral,isnotdesignedtooptimizehumanperformance.Implementaitonofenhancementssuchasprioritycoding,re-engravingtoenhancereadabiltiy,etc.,shouldsignificantlyimproveoperatorperformance.89 TABLE2.3.9-1ANNUNCIATORSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File00,5610,111213,1516,17HED86.3.1.2.a.l6.3.1.2.a.26.3.1.2.b.l6.3.1.2.c6.3.1.3.a.l6.3.1.06.3.1.56.3.2.2.a6.3.3.l.a6.3.3.1.b.l6.3.3.1.c.lDescritionNormally"ON"annunciatornuisancealarms.Setpoints.Annunciatorlocation.Multi-inputalarms.Reactorfirstout.Prioritization/unnecesaryinformation.No"alarmclear"signal.Auditorysignal.Annunciatorlocation/group.Annunciatorpanellabeling.Tilereplacement.VariousRTGBs102,106VariousVariousRTGB100'llpanelsAllpanelsAllpanelsVariousAllpanelsControlRoomAuxiliaryConsole20236.3.3.2.b6.3.3.2.c6.3.3.2.dFlashrate.Flasherfailure.Windowcontrast.AllpanelsAllpanelsPanel"C"onRTGB101

TABLE23.9-1ANNUNCIATORSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File021,22,25,2627282930-3330-353637,38390001-03HED86.3.3.2.e6.3.3.3.c.l6.3.3.3.d.l6.3.3.3.e6.3.3.0.a6.3.3.0.c6.3.3.0.d6;3.3.5.(a.2,b.2)6.3.3.5.d6.3.0.1.d.l6.3.0.2.b.(1-0)6.3.0.2.c6.5.1.l.e.lDescritionNormallylitannunciators.Axeslabeling/arrayindices.Tilesperpanel.Recognitionofout-of-servicealarms.Wordy/unclearlegend.Lackofalarmwarning;messagespecificity..InconsistentabbreviationsFontsize/style/readability.Letterdimensions/spacing.Brightness/lamptest.Annunciatorcontrolcoding.'Lackofguarding/controlsnondefeatable.Meterdrivesannunciator.LocationVariousAllpanelsRTGB101,102,106VariousVariousVariousAllpanelsAllpanelsAllpanelsAllpanelsRTGBs101,103,105RTGBs101,103,105Allpanels

2.3.10AnthropometrySurvey2.3.10.1Objective-TheobjectiveoftheAnthropometrySurveywastodeterminewhethercontrolsanddisplaysarelocatedinamannerwhichmakesthemhighlyvisible,withinreach,andprecludesinadvertentactuation.2.3.10.2ReviewTeamResponsibilities-TwohumanfactorsengineerstookthemeasurementsnecessaryforperformanceoftheAnthropometrySurvey.Withthosemeasurements,onepersondevelopedthereachenvelopesandvisualanglesandappliedallchecklistitems.2.3.10.3Criteria-Thefollowinggeneralcriteriawereappliedtomeettaskobjectives:a.Allcontrolsarewithinreachofthe5thpercentilefemale(i.e.,thepersonwhoissmallerthan95percentofthefemalepopulation)(6.1.2.2.b.l).b.The95thpercentilemalecanreachallcontrolswithoutstooping(6.1.2.2.b.2).c.Alldisplaysarevisiblefrom'anypointatwhichtheymustbemonitored,basedoneyeheightofboththe5thpercentilefemaleandthe95thpercentilemale.Thisincludesviewingofannunciatorsfromtheirassociatedacknowledgecontrols(6.1.2.2.e).d.Controlsareplacedfarenoughbackontheboardtoavoidinadver-tentactuation(6.1.2.2.d.1).e.Allcontrolsanddisplaysinvolvedinasingletasksequencearelocatedtominimizetherequirementforoperatormovement(6.1.2.2.f).f.Consolesaredesignedtoallowsufficientlegandfootroomand,ifnecessary,spaceforwriting(6.1.2.2.g).g.Controlsanddisplayswhicharefrequentlyusedorimportantarelocatedinthemostfavorablepositionwithregardtoviewingorreaching(6.1.2.5.a86.1.2.5.b.2).h.CRTsareeasytoviewwithaminimalamountofheadmovement(6.7.2.3).I2.3.10.0TaskDefinitionReachEnvelopes-Toensurethatallcontrolscanbereachedbythe5thpercentilefemaleand95thpercentilemale,verticalreachenvelopesweredevelopedusingshoulderheightandtwodifferentreachdistances:functionalreachandextendedfunctionalreach.Functionalreachisdefinedasthedistancefromtherightindexfingertipwhenthearmisextendedforwardtotherightshoulderwhenbothshouldersaredirectlyabovetheoperator'sfeet.Extendedfunctionalreachisthesamemeasurementexceptthattherightshoulderisextendedforward.92 FunctionalreachisthemeasurementprescribedinNUREG-0700forthedesignofreachenvelopes.Itisusedontheassumptionthatanoperatorleaningforwardmayinadvertentlyactuateacontrol.RTGBs101-106areequippedwithaguardrailwhichprotectsthecontrolslocatedclosetothebenchboardedge.Inaddition,nocontrolsarewithinthreeinchesofthefrontofthepaneledge.Anoperatorleaningforward,therefore,willnotinadvertentlyactuateacontrol.Forthatreason,extendedfunctionalreachismoreappropriateforthedevelopmentofreachenvelopes.Therearesomecontrols,however,whichanoperatorshouldnothavetostretchtoreach.Forinstance,ifacontrolrequirespreciseadjustments,alocationwhichrequiresleaningtoreachitmaymakeitdifficulttoadjust.Emergencyorfrequentlyusedcontrolsshouldalsobewithineasyreach.'Sincetherearedifferentconditionsinwhicheitherfunctionalreachorextendedfunctionalreachisappropriate,HumanEngineeringDiscrepancieswereidentifiedasfollows:oAllcontrolsmustbewithinextendedfunctionalreach,i.e.,a5thpercentilefemaleoperatorstretchingforwardshouldbeabletotouchallcontrolsinfrontofher.o'llcontrolswhichwerenotwithinfunctionalreachwerenoted.Inmostcases,however,thesecontrolswillnotcauseoperationalproblemssimplybecauseoftheirlocation.oControlswhichareusedfrequentlyorinanemergency,orrequirepreciseadjustmentsmaybedifficulttooperateinatimelyfashioniftheoperatormuststretchtoreachthem.Theyshouldbewithinfunctionalreach.Toconstructreachenvelopes,profiledrawingsweremadeofthemaincontrolpanels,theControlRoomAuxiliaryConsole,andtheLineRepeatPanel.Shoulderheightsweremarked,andfunctionalandextendedfunctionalreachdistancesweremeasuredforboththe5thpercentilefemaleand95thpercentilemale(seeFigures2.3.10-1through2.3.10-8).Itwasassumedthattheoperatorwasstandingattheguardrail.Areaswherethereachlinewasinfrontoftheboard,i.e.,wheretheextendedarmwouldnottouchthepanel,weremeasuredandmarkedonpaneldrawings.ThesedrawingswereattachedtoHumanEngineeringDiscrepanciesdescribingtheguidelineviolated.Notethatthedimensionsofthemaincontrolboardsatcorners,e.g.,where'TGB102meetsRTGB103,aredifferentthanthedimensionsoftheremainderoftheboard(seeFigure2.3.10-9).Separatedrawingsweremadeforthesesections.VisualAngles-Thevisualangleofadisplayreferstotheanglemeasuredfromthelineofsighttothedisplayface.Maximizingthisangleintheverticalplaneensuresthat93 0

thedisplayisnotsoloworsohighthatitisdifficulttoread.Maximizingtheangleinthehorizontalplaneensuresthatthedisplayisnotlocatedtoofartotheleftorrightofthepositionfromwhichthedisplayismonitored;forexample,start-uprateindicationsshouldbelocatedclosetotheCEAcontrols.Thesecriteriawereappliedtoalldisplays,includingannunciatorsandCRTs.ItisassumedthatanoperatorstandsattheguardrailwhileobservingameterorCRT,andstandsatarm'sreachfromtheannunciatorcontrolswhileobservinganannunciate.Figure2.3.10-10showsthedistancea5thpercentilefemalewouldstandfromtheboardtoreacheachofthethreesetsofannunciatorcontrols.Todetermineverticalvisualangles,silhouettedrawingswereused'gain.Eyeheightwasmarkedforthe5thpercentilefemaleand95thpercentilemale.Theareasinwhichtheangle,determinedbythelineofsightandthedisplayface,was45orless(seeFigures2.3.10-1through2.3.10-8)weremeasuredandmarkedonpaneldrawings.ThepaneldrawingswereattachedtoHumanEngineeringDiscrepanciesdescribingthediscrepantcomponents,Figure2.3.10-10presentsverticalviewinganglesforannunciatortiles.Asevidencedinthedrawing,a5thpercentilefemaleisabletoreachtheannunciatoracknowledgestationonRTGBs101and105whenstanding13inchesbackfromtheboard.Theviewingangle,therefore,isdrawnfromthatpoint.TheacknowledgecontrolsonRTGB103,however,werenotwithinfunctionalreach.Thesehavesincebeenrelocated.Basedoneitherthedistancefromtheverticalportionoftheconsoletotheguardrailorthereachdistancetotheannunciatorcontrols,Figure2.3.10-11depictsthepermittedhorizontaldisplacementofdisplays(i.e.,theareainwhichtheangledeter-minedbythelineofsightandthedisplayfacewas05orless).Faileddisplayswerenotwithintheallowabledistancefromtheassociatedcontrols.Annunciatorcontrolswerepairedwithtiles,andallothercontrol-displaypairswereidentifiedthroughtaskanalysis.Toensurethatextrememovementsoftheheaduportotheleftorrightwerenotnecessary,measurementsweremadeoftheanglefromthestraight-aheadlineofsighttothelineofsightwhenmonitoringthedisplay.Alldisplaysshouldbelessthan75abovethehorizontallineofsightofthe5thpercentilefemale.AllothercriteriaofthistypeapplyonlytoCRTs.Basedontaskanalysis,theMetrascopewasclassifiedasaCRTwhichrequiresfrequentmonitoringandwhichdisplaysimportantinformation.Itwasthereforerequiredtobewithin35totheleftorrightoftheoperator'sstraight-aheadlineofsightandnotmorethan35aboveor25belowtheoperator'shorizontallineofsight(seeFigures2.3.10-12and2.3.10-13).

9692~ssTOPOFBOARDTOPOFANNUNCIATORSFIGURE2.3.10.1-VISUALANGLESANDREACHENVELOPESFOR5thPERCENTILEFEMALE848045'4"FAILVISUAL(ANGLE(450)7672e-6460EXTENDEDFUNCTIONALREACH(28.9")e4844FUNCTIONALREACH(25.2")75'YEHEIGHT(55.5")SHOULDERHEIGHT(48.4")403645o34II32282016p48122428.32369516204044485256 0

8472EXTENDETOPOFBOAAD,TOPOFANNUNCIATORSDFUNCTIONALREACH(39")FIGURE2.3.10.2-VISUALANGLESANDREACHENVELOPESFOR95thPERCENTILEMALEFUNCTIONALREACH(35")QEYEHEIGHT(66.6")ySHOULDERHEIGHT(60.8")48J'5636(HANDRAIL)24121224963648

'10096"g2tlTOPOFBOARDTOPOFANNUNCIATORStFIGURE2.3.10.3~VISUALANGLES/REACHENVELOPESFOR5thPERCENTILEFEMALEATCORNEROFBOARD80TO6066II45'UNCTIONALREACH(25.2")PEYEHEIGHT(55.5").EXTENDEDFUNCTIONALREACH(28.9")SHOULDERHEIGHT(484")r40371/I"3.5>>8.5>>45'9,75>>33.5>>30(DISTANCEFROMCORNEROFBOARDTORAILING)2010203040

'100806040FIGURE2.3.10.4~VISUALANGLEStREACHENVELOPESFOR95thPERCENTILEMALEATCORNEROFBOARDEXTENDEDFUNCTIONALREACH(39")SHOULDERHEIGHT(60.8")I2i~TOPOFBOARD92'OPOFANNUNCIATORSFUNCTIONALREACH(35")4EYEHEIGHT(68.6")/45o303yi~5$97gss(DISTANCEPROOFBOARDŽCORNERTORAILING)33.5"201020933040 FIGURE2.3.10.5~REACHENVELOPESNISUALANGLESFOR5IhPERCENTILEFEMALE~CRAG72soFUNCTIONALREACH(25.2")754EYEHEIGHT(55.5")48SHOULDERHEIGHT(48.4")36534464241212249948 FIGURE2.3.106~REACHENVELOPENISUALANGLESFOR95thPERCENTILEMALE~CRACFUNCTIONALREACH(35")72EYEHEIGHT(68.6")SHOULDERHEIGHT(60.8")48454gt'I36241212241003648' 84FIGURE2.3.107~REACHENVELOPESNISUALANGELSFOR5thPERCENTILEFEMALE~CRAG72IFUNCTIONALREACH(25.2")EXTENDEDFUNCTIONALREACH(28.9")EYEHEIGHT(55.5")48SHOULDERHEIGHT(48.4")3645'.25"120'2241013648

'0FIGURE2.3.10.8~REACHENVELOPENISUALANGLEFOR95thPERCENTILEMALE~CRAGFUNCTIONALREACH(35")72EYEHEIGHT(68.6")SHOULDERHEIGHT(60.8")484545lt3612~'2241023648 FIGURE2.3.10 HORIZONTALREACHENVELOPESFORCORNEROFBOARD4.4527.5/iL1.5th%FEMALE-FUNCTIONALREACH(25.2")25th%FEMALEEXTENDEDREACH(28.9")3.95th%MALE-FUNCTIONALREACH(35")4.95th%MALE-EXTENDEDREACH(39")

9692TOPOFBOARDTOPFANNUNCIATORS45'IGURE2.3.1010-REACHTOANNUNCIATORCONTROLSBY5thPERCENTILEFEMALE8045'672I,6052EYEHEIGHT(55.5")SHOULDERHEIGHT(48.4")40FUNCTIONALREACH=25.2"3632284103l104101/102105l106ANNUNCIATORCONTROLLOCATION13"201612'ANNUNCIATORCONTROLSONRTGB103ARENOTWITHINFUNCTIONALREACH12p481620283236404448525660100 FIGURE2.3.10.11~HORIZONTALDISPLACEMENTOFDISPLAYS/ANNUNCIATORS24121224364545'5445'ENCHBOARDDEPTH1236A..EYEREFERENCEPOINTFORALLDISPLAYSEXCEPTANNUNCIATORS.MAXIMUMDISPLACEMENTIS28INCHESFROMCONTROL.B.EYEREFERENCEPOINTFORANNUNCIATORCONTROLSONRTGBs101/102AND105/106.MAXIMUMDISPLACEMENTFORANNUNCIATORTILESIS41INCHESFROMTHECONTROLS.105 9692e..TOPOFBOARDTOPOFANNUNCIATORSFIGURE2.3.10.12~VERTICALANGLESTOMETRASCOPEFOR5thPERCENTILEFEMALEAND95thPERCENTILEMALE84807672~6454414"624254EYEHEIGHTFOR95th.PERCENTILEMALE605634~rr594rr354EYEHEIGHTFOR5thPERCENTILEFEMALE5248403632201612p4812162024283236404448525660106 FIGURE2.3.10-13-HORIZONTALVIEWINGANGLETOMETRASCOPE0CPSI%PWRMETERSCONTROLSMETRASCOPE~17.5~VERTICALBOARD12o<2456'UARDRAIL36480IIfII)IItIIjIItII12243648607284 VerticalPanels-Averticalpanelisanypanelwithoutabenchboard,forexample,theReactorProtectionSystemandRadiationMonitoringPanel.Itisnotpracticaltodeterminereachenvelopesandvisualanglesforthesepanels,asthedistanceanoperatormaystandfromtheboardwillnotbebeconstant.Rather,itwillbedeterminedbythetaskbeingperformedandbytheanthropometricsoftheparticularoperator.Forthatreason,controlsanddisplaysonverticalpanelswereevaluatedbasedontheirdistancefromthefloor.Taskanalysisresultswereusedtoidentifycomponentsrequiringpreciseorfrequentoperationormonitoring.Discrepantcomponentswere.discussedinHumanEngineeringDiscrepancies.2.3.10.5Results/Findings-Analysisofthedrawingsdrawnduringthe"conductoftheAnthropometrySurveyrevealedtheHumanEngineeringDiscrepancieslistedinTable2.3.10-1.108 TABLE2.3.10-1ANTHROPOMETRICSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File817,131920,222123,202527,2829HED86.1.2.2.b.l6.1.2.2.b.l6.1.2.2.e.l.b6.1.2.2.e.l.b6.1.2.2.e.26.1.2.2.f6.1.2.5.a.(1,2)6.1.2.5.(b,b.l)6.7.2.3.bDescritionControlsoutoffunctionalreach.Controlsoutofextendedfunctionalreach.Displaystoolow.Annunciatorheight.Horizontaldisplacementofdisplays.Lateralspreadofcontrolsanddisplays.Controlheightonverticalboards.Displayheightonverticalboards.Metrascopeviewingangle.LocationRTGBs101-106,LineRepeatPanelVariousRTGBs101-106,LineRepeatPanel,ControlRoomAuxiliaryConsoleRTGBs103,100RTGBs101-106RTGBs102,105,106;BackPanels;RadiationMonitorPost-AccidentPanel,ReactorProtectionSystem,RadiationMonitoringPanel,BackPanelsPost-AccidentPanel,ReactorProtectionSystem,RadiationMonitoringPanel,BackPanelsRTGB100 TABLE2.3.10-1ANTHROPOMETRICSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8195,6HED8'.7.2.3.d.l.a6.8.1.1.cDescritionHorizontallimitsforCRTlocation.Groupingbyimportanceandfrequencyofuse.LocationRTGB100RTGBs101-106 0

2.3.11Force/TorqueSurvey2.3.11.1Objective-TheobjectiveoftheForceTorqueSurveywastoidentifycontrolroomequipment,viaoperatorinterview,whichrequiretoolittleortooexcessiveforcefortheiroperation,andtoevaluateconformanceofanypotentiallydiscrepantequipmenttoapplicablehumanengineeringcriteria.2.3.11.2ReviewTeamResponsibilities-Theevaluationteamconsistedofahumanfactorsengineerqualifiedtotakeforce/torquemeasurementsandacontrolroomoperator.Wherecontrolactuationwasnecessarytosubjectivelyassesstheforce/resistanceofacontrol,operationspersonneldirectedtheactivity.2.3.11.3Criteria-TheforcecriteriaforoperationofswitchtypesarecontainedinthechecklistsinAppendixA.ThesourcedocumentforthechecklistwasNUREG-0700.2.3.11'askDefinitions/Methodology-Severalcontrolroomoperatorswereinterviewedusingapreconstructedforce/torquequestionnaire(seeTable2.3.11-1).Individualcomponent~teswereactivatedbyacontrolroomoperatortotestconform-ancewithcriteria,andwereevaluatedusingthechecklist.2.3.11.5Results(Findings-NoHumanEngineeringDiscrepancieswereidentifiedintheForce/TorqueSurvey.111 TABLE23-11-1FORCE/TORQUEQUESTIONNAIRE1.Doyourecallanyinadvertentswitchactuationsasaresultofcomingincontactwiththeswitchmechanism?Ifso,dotheseswitchesappeartobetooeasilyactuated?GOTOFIRSTPANEL,THENREPEATQUESTIONSATEACHPANEL2.Arethereanycontrols,pushbuttons,orlegendpushbuttonswhichappeartobetooeasilyactuatedordifficulttoactuate?3.Dotoggleswitcheshaveanelasticresistancethatincreasesasthecontrolismovedanddropsastheswitchmapsintoposition?0.Areknobsforspringloadedmomentarycontactrotaryselectorcontrolslargeenough'tobeeasilyheldagainstthespringtorqueforaslongasnecessary?5.Doesrockerswitchresistancegraduallyincreasethendroptozerowhenthecontrolsnapsintoposition?6.Doestheresistancefortherockerswitchprecludetheswitchfrombeingplacedbetweenpositions?7.Doanycontrolknobsorhandlesrotateormovelooselyontheirshafts?8..Doanycontrolsgivethe"feeling"thatinternalwearhasoccurredorthatbreakagemightoccur,orhavethe"feel"thatsensoryfeedbackhasalteredoverthelifeofthecontrol?112 2.3.12CommunicationsSurvey2.3.12.1Objective-TheobjectiveoftheCommunicationsSurveywastoassessthedegreetowhichvariousmodesofcommunicationtransmissionandreceptionusedinthecontrolroomconformtothecriteriaidentifiedintheattachedchecklist.Throughtheevaluationprocessgenericdiscrepanciesanddiscrepanciesspecifictoindividualcommu-nicationdeviceswereidentified.2.3.12.2ReviewTeamResponsibilities-Themembersofthereviewteamincluded:oAhumanfactorsspecialisttoconductthechecklisting,identifydiscrepancies,andreportthesurveyfindings.oAseniorhumanfactorsscientisttoobservethesystemoperationduringanemergencydrillandidentifythosediscrepanciesnoted,andtoassistinconductingrhymetests.oCommunicationssystemoperators(ControlRoomOperator,NuclearPlantSupervisor,andNuclearWatchEngineers)tosupplyoperationalinformationanddemonstratesystemoperations.oPlanttechnicians(InstrumentationandControlandElectricDepart-mentpersonnel)toworkcloselywiththeEssexCorporationresearchersansweringquestions,providinginformation,andobtaininganynecessarydocumentationforcompletionofthistask.2.3.12.3Criteria-Thecr'iteriausedtoevaluatethevariouscommunicationsystemsarepresentedintheattachedchecklist(AppendixA).2.3.12.0TaskDefinition/Methodology-Thethreeproceduresusedtoconductthissurveywere:1)conductofoperatorinterviews,2)applicationofhumanengineeringchecklists,and3)conductofamodifiedrhymetest.Eachisdiscussedbrieflybelow.Interview-Theoperatorinterviewscollectedinthe"ReviewofOperatingExperi-ence"taskwerereviewedforidentificationofpotentialcommunicationsdiscrepancies.Thediscrepancieswerethentargetedforreverificationinthecontrolroomandevaluatedusingchecklistcriteria.HumanEngineeringChecklist-Thechecklist,appliedon-site,wasconcernedwiththefollowingissues:maintainability,identification,coding,operation,audibility,'usability,andaccessibility.Operationspersonnelwereaskedspecificquestionsaboutthedifferentcommuni-cationssystemsorwereaskedtodemonstratethesystemoperationandcapabilities.Instrumentationandcontrolengineersandplanttechnicianswereconsultedconcerningspecificsystemcapabilities(e.g.,frequencyranges,powersupplies,andmaintenance).PageSystemRhymeTest-AmodifiedrhymetestofthePlantPageSystemwasspontaneouslyconducted,basedonoperatorinterviewfindings.Inthissubtask,15words113

werespokenoverthepagesystemwhiletheplantwasinnormaloperatingcondition.Theprocedureusedwas,exceptfortalker'slistlength,thesameasdescribedinSection2.3.7ofthisreport.2.3.12.5Results/Findings-Table2.3.12-1summarizestheHumanEngineeringDiscrepancyfindingsoftheCommunicationsSurvey.Ingeneral,theresultsoftheCommunicationsSurveyincludethecompletedchecklistandtheHumanEngineeringDiscrepancyreportsdocumentingtheidentifieddiscrepancies.Ingeneral,theCommuni-cationsSystemwasfoundtobediscrepantinseveralareasincludingemergencyuse,reliability/maintenance,identification/coding,location,anddesign.Interviewssuggestedintelligibilityproblemswiththepagesystem.Table2.3.12-2presentsthetestwordsusedinthemodifiedrhymetest.Thetestwaspresented,and87%correctrecognitionwasmadeoftargetwords.Thesefindingsareconsideredtoindicatemarginalintelligibilityoftheinstrumentstested.Intermsofspokenphrases,contextualcueswill"increasespeechintelligibilitydramatically.Theadditionofconstrainedlanguage(e.g.,useofphoneticalphabet)wouldenhanceintelligibilityfurther.

0 TABLE2.3.12-1COMMUNICATIONSSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)FilegHED86.2.1.2.b.56.2.I.8.c6.2.2.3.dDescritionPhonecordpresentstrippinghazard.Respiratorsandcommunications.Auditoryfrequencycoding.LocationCommunicationsPanelN/AN/A TABLE2.3-12-2MODIFIEDTALKERS'SLISTFORPAGESYSTEMRHYMETEST'Group111213101516171819202122232025DIMSHEDTOEJARSINDUGSWOG'EENNOTWESTPITBATSAYDIGPAGE116 2.3.13MaintainabilitySurvey2.3-13.1Objective-TheobjectiveoftheMaintainabilitySurveywastoevaluatetheadequacyofthecontrolroomdesigntosupportmaintenanceactivitiesperformedbyoperationspersonnel.Thesurveywasorganizedintothreeparts:oMaintenanceofComponentswithIntegralLightingo.RecognitionofVisualDisplayFailureoSpareParts,OperatingExpendables,andTools.2.3.13.2ReviewTeamResponsibilities-Thefollowingpersonnelwererequiredtoconductthissurvey:ahumanfactorsengineer,responsiblefordatacollectionandanalysisandforreportpreparation;acontrolroomoperator,responsibleforprovidingassistanceduringdatacollectionandanalysis;andaninstrumentationandcontroltechnician,whowasresponsibleforprovidinginformationandassistanceduringdatacollectionandanalysis.2.3.13;3Criteria-Criteriausedinthissurveyaresummarizedbelow.oLampsshouldbereplaceablefromthefrontofthepanel(i.e.,componentsshouldnothavetoberemovedtoreplacelamp.oComponentsarenotsusceptibleto,shortingoutor,inthecaseofswitches,toinadvertentactivationduringtheprocessoflampremovalorreplacement.oLampreplacementdoesnotsubjecttheoperatortoashockhazard.oCovershavinglegends,colorcoding,orothercomponent-specificinformationarephysicallykeyed,orsomeformofproceduralsafe-guardisprovidedtopreventinterchangingofcovers.oIflampreplacementrequirestileremoval,thereisawaytoensurethatthetileisreplacedinthecorrectlocation.oDual-bulbordual-filamentlightassembliesareused,orbulb-testcapabilityisprovidedwherelampstatuscannotbeverified.oComponentdesignencouragesimmediatereplacementofburned-outbulbsbyprovidingforrapidandconvenientbulbreplacementwithpoweronandwithouthazardtopersonnelorequipment.oOperatoraidsareprovidedifneededforlampreplacement.oWhenpanelinstrumentssuchasmetersfailorbecomeinoperative,thefailureisapparenttotheoperator(i.e.,afailedmeterdisplaysanoff-scaleindication).oSpareparts,suchasindicatorlamps,andanytoolsrequiredbyoperatingpersonnelarestoredinsuitabledesignatedspace(s)withinthecontrolroom.oAnadequatesupplyofexpendablesandspareparts(e.g.,fuses,bulbs,ink,recordercharts,printerpaper,etc.)areprovided.117 oExpendablesandsparepartsarereadilyaccessible.oAlltoolsrequiredtoreplenishexpendablesandinstallsparepartsareavailable.oThereshouldbeadequatestoragespaceforexpendablesandspareparts.oWhendifferenttypes,sizes,orstylesofexpendablesandsparepartsarerequired,theyshouldbeclearlyanddistinctivelymarkedtoavoidconfusionormisapplication.oRecordsshouldbemaintainedconcerningthestatusofexpendablesandspareparts.oThepaper,ink,andotherexpendablesrequiredtomaintaingraphicrecordersshouldbeprovidedandaccessibleinthecontrolroom.oThedesignofgraphicrecorderspermitquickandeasyreplenishmentofpaperandink.oFreshreplacementbatteriesforwalkie-talkiesareaccessibleandwellmarked.oThestockofbatteriesissufficienttosupportcontinuousemergencyoperationofwalkie-talkies.2.3.13.0TaskDefinition/Methodology-Thefollowingprocedureswerefollowedtoconductthissurvey,MaintenanceofComponentswithIntegralLighting-Allcomponentshavinginte-grallightingwereidentified.Componentswereorganizedintogenericclasses(e.g.,legendswitches,annunciators,etc.).Next,representativecomponentswereselectedfromeachclassforevaluation.Maintenanceproceduresforlampreplacementforeachsamplecomponentwerereviewedandassessed.Finally,eachsamplecomponentwasevaluatedaccordingtotheabovecriteriabyusingthechecklistcontainedinAppendixA.Whenevernecessary,thecontrolroomoperatorortheinstrumentationandcontroltechniciandemonstratedrequiredmaintenanceactivities.RecognitionofVisualDisplayFailure-Allvisualdisplayswereidentified.Visualdisplayswereorganizedintogenericclasses(e.g.,verticalmeters,stripchartsetc.).Next,representativedisplaysfromeachclasswereselectedforevaluation;anddisplayfailuremodes,indications,etc.,wereidentifiedbyinterviewingthecontrolroomoperatorsand/orinstrumentationandcontroltechnicianusingtheinterviewformcontainedinAppendixA.EachsampledisplaywasevaluatedaccordingtotheabovecriteriausingthechecklistcontainedinAppendixA.Whenevernecessary,theoperatororinstrumentation andcontroltechniciansimulateddisplayfailureeitherbydisruptingtheelectricalsignaltothedisplay,orsomeothermeans,asappropriate.Whereitwasimpracticaltosimulatedisplayfailure,displayspecificationswerereviewedtodeterminedisplayfailureresponse.'SpareParts,OperatingExpendables,andTools-Allcontrolroomcomponentsrequiringmaintenancebyoperationspersonnelintheformofreplacingpartsorreplenishingexpendableswereidentified.Thecomponentswereorganizedintogenericclasses(e.g.,transilluminateddisplays,graphicrecorders,printers,etc.).Next,foreachclassofcomponentstheassociatedsparepartsand/oroperatingexpendablesrequiredformaintenancebyoperationspersonnelwereidentifiedanddescribed.Informationenteredonthedataformincluded:oComponent-componentnameordesignation(e.g.,graphicrecorder)oType-typeofsparepartoroperatingexpendable(e.g.,paper)oSize-cubicdimensionsofsparepartorexpendable,asstored(approximate)oMarkings-provisionsforlabelingorotherwisedesignatingsimilaritemstoavoidconfusionoReplacementfrequency-howoftentheitemmustbereplaced(e.g.,onceperweek)oTools-toolsrequiredtoreplacesparepartorreplenishexpendableoStoragelocation-whereinthecontrolroomtheitemisstored.Storageclosets,lockers,etc.,werealsoidentifiedanddescribed.Informationenteredonthisformincluded:/oDesignation-nameassignedtolocker,closet,etc.(e.g.,StorageLockerNl).oLocation-whereinthecontrolroomthecontainerislocatedoSize-internaldimensionsofthecontaineroStoreditems-itemsstoredinthecontaineroLabeling-bins,compartments,etc.oFrequencyofstocking-scheduleforrestockingcontainer.Thecontrolroomdesignwasevaluatedwithrespecttospareparts,operatingexpendables,andtoolsbyusingthechecklistcontainedinAppendixA.Inconductingthisevaluationitwasimportanttoconsiderthefollowing:oAdequacyofsupply-todetermineifthesupplyofexpendablesandsparepartsisadequate,onemustdeterminethefrequencywith119 whichthesparepartorexpendableisreplaced,aswellastheperiodicityofstockreplacement(i.e.,thelikelihoodthatanitemwillrunoutbeforetheshelvesarerestocked).oAdequacyofspace-todeterminetheadequacyofstoragespace,onemustcomputethevolumeofallitemscontainedinthestoragespacewhentheshelvesarefullystocked.2.3.13.5Results/Findings-Thesurveyofintegrallylightedcomponentsinthecontrolroomrevealedbothpositiveandnegativefeaturesofthepresentsysteminensuringthatallbulbsontheboardareoperable.Apositivefeatureisthatallbulbsarereplaceablefromthefrontoftheboard.V/hentoolsarerequired,(e.g.,toavoidreceiving'shockwhenchangingannunciatorbulbs)theyareprovidedandeasilyaccessible.Lamptestsand/orredundantbulbsareprovidedonsomesystemssuchasrodcontrolpush-buttons,annunciators,thecoremimic,andmostlegendlightsandpushbuttons.Table2.3.13-1summarizestheHumanEngineeringDiscrepanciesidentifiedbytheMaintainabilitySurvey.120 TABLE2.3.13-1MAINTAINABILITYSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)File8131907,08,09178-183~180-188189190-190HED86.1.1.56.1.1.5.e6.1.1.5.f6.3.3.1.c.26.0.3.3.c.36.0.3.3.c.O6.5.3.1.a.l6.5.3.l.a.26.5.3.l.a.36.5.3.l.bDescritionStorageatRemoteShutdown.Bulbstoragelabeling.Bulbinventoryrecords.Lampreplacementhazards.Lampreplacementhazards.Legendcoverinterchange,legendpushbuttons.FailureofdisplaynotapparentOackofbulbredundancy).Bulbtest.Shockhazard.Uniformityofbrightness.LocationRemoteShutdownControlRoomControlRoomRTGBs101-106RTGBs101,103,100RTGBs101,102,103,105,106;RemoteShutdown;RadiationMonitoringPanel;LineRepeatPanel;ControlRoomAuxiliaryConsole;BackPanelsRTGBs101-106,ControlRoomAuxiliaryConsole,ReactorProtectionSystem,RadiationMonitoringPanel,RemoteShutdown,BackPanelsRTGB101RTGBs102,103,105,106 TABLE2.3.13-1MAINTAINABILITYSURVEYHUMANENGINEERINGDISCREPANCIES(HEDs)197-205225,226227-233HEDII6.5.3.1.c.26.5.0.l.e6.5.0.1fDescritionLegendcoverinterchange,legendlights.Recorderpaperstorage.Easeofroutinereplacement.LocationRTGBs101,100,105;ReactorProtectionSystemAllpanelsAllpanels 2ASystemFunctionandTaskAnalysisSystemFunctionandTaskAnalysiswasconductedinfourbasicsteps,asfollows:oIdentify/reviewsystems,functions,andtasksidentifysystemfunctionsdeveloptasklistsandResponseSelectionDiagramsidentifyeventsequencestobeanalyzedoAnalyzetasksanalyzetasksforeachfunctiondevelopSpatial-OperationalSequenceDiagramsoVerifytaskperformancecapability/humanengineeringsuitabilityoValidatecontrolroomfunctions.Eachofthesestepsisdiscussedinthefollowingsections.2.0.1Identify/ReviewSystems,Functions,andTasksTheoverallobjectivesoftheSystemFunctionandTaskAnalysisweretoidentifyandorganizeplantsystems,functions,andoperatortaskstosupportsubsequentanalysis.Subtasksarepresentedbelow.2.0.1.1IdentifySystems/SubsystemsandSystemFunctions-Theobjectivesofthissubtaskweretoidentifyanddocumenttheplantsystemsandsubsystemswhichfunction'ooperatethereactorplantandgenerateanddistributepower.Thisincludedthesystemswhicharerepresentedinthecontrolroom.Oncethesystemandsubsystemboundarieswereidentified,thefunctionswhichareperformedwithinasubsystemdivisionwereidentifiedanddocumented.Thereviewteamconsistedofseveralsenioroperationspersonnel,fourhumanfactorsspecialists,andplantinstrumentationandcontrolengineers.TheteammembersreviewedtheFinalSafetyAnalysisReports,technicalspecifica-tions,systemdescriptions,andotheravailabledocumentationwhichdescribethereactorplant,powergeneration,andpowerdistributionsystems.Apreliminarysystemsandsubsystemslistwasdeveloped.TheteaminterviewedtheoperationspersonnelusingtheIcontrolroomphotomosaictoverify/revisethesystemandsubsystemdivisionswhichwereidentifiedbyoperationspersonnelasgoverning:oReactorcontrolandinstrumentationsystemsoSafetysystemsoFeedwatersystemsoRadwastesystemsoPowergenerationsystemsoPowerdistributionsystems.123 The,systemandsubsystemboundarieswereidentifiedandverifiedtoreflecttheas-builtoperationalstatusandoperating.practices.Theoperationspersonnelwererequestedtoprovide,foreachsubsystem,thefunctions(oroperations)of(andanyoperationalvariationsassociatedwithit)thesubsystemanditscomponents.Operationalvariationsandtheconditionsunderwhichtheyareemployedwere'documentedasfunctionalternatives.Thissubtaskidentifiedthemajorplantsystems,thefunctionswhichtheygovern,andthesubsystemsofeachmajorsystem.ThelistofsystemfunctionsunderwenttaskAnalysis.2.0.1.2DevelopTaskListsandResponseSelectionDiagrams-Theobjectivesofthissubtaskwere:1)toidentifyanddescribemotor,perceptual,andinformationprocess-ingtasksassociatedwithperformanceofsystemandsubsystemfunctions,2)toidentifytasksequencesanddependencies,and3)tographicallydepicttasksequencesinResponseSelectionDiagrams.Throughreviewofstandard,abnormal,andemergencyoperatingproceduresandinterviewswithoperationspersonnel;conditionswhichinitiateoperatortasksinrelationtoperformingfunctions(initiatorsincludealarms,routinemonitoring,administrativeprocedures,etc.)wereidentified.Alsoidentifiedweretheprerequisiteconditionsfortheconductoffunctionsandthepossiblevariationsintheconductoffunctionsbasedonpresenceorabsenceofprerequisiteconditions.Byreviewingsystemoperatingproceduresandinterviewingtraininginstructorsandoperators,individualtasksanddecisionpointsinvolvedinfunctionperformancewereidentified.DetaileddescriptionsoftaskactionswererecordedintheformofResponseSelectionDiagramswhichgraphicallyrepresenttasksequences(seeFigure2.0-1)andidentifyactionsanddecisionsonthepartoftheoperator.ThissubtaskprovidedResponseSele'ctionDiagramsforeachcontrolroomfunction,depicting:oTasksoTasksequencesoDecisionpointsoTaskdependenciesoDetailedtaskdescriptions.TheseResponseSelectionDiagramswereusedasinitializinginformationfordetailedanalysisoftasks.120

2.0.1.3IdentifyEventSequences-Theobjectiveofthissubtaskwastoidentifyeventsequences(postulatedandexperiencedtransients)tobeevaluatedinthetaskanalysis.Thespecificlistofeventsequencesselectedforanalysiswere:oPlantStartup/Shutdown/ChangeinPoweroLossofCoolantAccidentoInadequateCoreCoolingoMultipleSteamGeneratorTubeRupturesoFailureofAuxiliaryandMainFeedwateroFailureofHighPressureReactorCoolantMakeUpoAnticipatedTransientsWithoutScramsLossofoffsite.powerStuckPower-OperatedReliefValve.2.0.2AnalyzeTasks'hebasicobjectiveofthisSystemFunctionandTaskAnalysisactivitywastousethedatapreviouslygeneratedtoanalyze,indetail,operator-allocatedtasksforeachofthefunctionalsequencesselectedforanalysis.Subtasksarediscussedbelow.2.0.2.1AnalyzeTasksforEachFunction-Theobjectivesofthissubtaskweretoanalyzetaskrequirementstodetermineinformationrequirements,controlrequirements,communicationrequirements,constraints(time,etc.)ontaskperformance,anddecisionsandskills/knowledgerequirements;andtodocumenttaskrequirementsinanaccessible,usableformatforeachtaskandtasksequence.TheResponseSelectionDiagramswereusedasabasistodeterminedetailedtaskrequirements.Detailedtaskdescriptionswereanalyzed,andforeachtaskthefollowinginformationwasassembledontheTaskAnalysis/ResponseSelectionDiagramform(SeeFigure2.0-1):oTherequiredcontrolaction,ifapplicable(i.e.,binary,multi-discrete,orcontinuous)oThecontrolpanelandthedisplayorcontrolcodeassociatedwiththetaskoThedisplayrequirement,ifapplicable(i.e.,binary,multi-discrete,orcontinuousscale)oParameterrangesandcontrolfeaturesnecessaryforsafeplantoperationoSkills/knowledgedemandedoftheoperatorfortaskperformanceoWorkloadassessment.125 2.4.2.2DevelopSpatial-OperationalSequenceDiagrams-Theobjectiveofthissubtaskwastopresentsequentialtaskaccomplishmentgraphicallyonlinedrawingsoftheboardlayouts.UsingTaskAnalysis/ResponseSelectionDiagramdataasinput,humanfactorsengineeringanalystsgraphicallyrepresentedtasksequencesonpanellinedrawings(i.e,Spatial-OperationalSequenceDiagrams).TheprocedureforgeneratingSpatial-OperationalSequenceDiagramsisasfollows:oAssemblelinedrawingsofcontrolboardoCodecomponentscompatiblywithlocatorcodesonTaskAnalysis/ResponseSelectionDiagramformsoSequentiallylinkcontrolboardinstrumentationanddisplaysbasedonTaskAnalysis/ResponseSelectionDiagramdataoNumericallyidentifylinkswithtaskcodenumbersfromTaskAnalysis/ResponseSelectionDiagramsoAssembleandfileSpatial-OperationalSequenceDiagramsforsubse-quentanalysis.TheoutputsandresultsofthissubtaskwereSpatial-OperationalSequenceDiagramsforeachsystemandsubsystemfunctionthatidentify:oSequenceofcontrol/displayuseforeachfunctionoFrequencyofcontrol/displayuseforeachfunctionoDecisionandtasksequenceoutputfailurepoints.Withtheknowledgeoftheoriginaldesignconsiderationsandthedesignandhumanfactorstrade-offsthatwereconductedduringtheplantdesignphase,theOperationsDepartmentperformedanintegralroleinthedeterminationoftaskrequirements.Theoutputsandresultsofthissubtaskwereverificationoridentificationof:instrumentationanddesignrequirementsforperformanceoftasks,operatorskillsandknowledgerequiredfortaskperformance,andworkloadassessment.2.4.3VerifyTaskPerformanceCapability/HumanEngineeringSuitabilityThistaskrequiredfurtheranalysisandevaluationofoperator-allocatedtasks.aSubtasksforthistaskarediscussedbelow.2.4.3.1DevelopFunctionalSequenceDiagrams-Theobjectiveofthissubtaskwastodevelopevent-basedFunctionalSequenceDiagramsforeacheventsequencelistedinSection2.4.1.3,above.Foreacheventsequencewhichunderwentevaluation,eventevolutions(courses)wereidentified.126 ji, FunctionalSequenceDiagramsgeneratedfromproceduresrepresenttheevolvingplantandoperationalstatusensuingafteraninitiatingevent.TheprocedurefordevelopingFunctionalSequenceDiagramswasasfollows:oIdentifythepreviouslydefinedfunctionsandtasksasoperationallysequencedintheeventoIdentifybranchpoints(e.g.,diagnosticdecisions,etc.)oTimelineoperationsandtaskstoidentifyeventprogressions.AsFunctionalSequenceDiagramswerecompleted,sequentialfunctionswereoverlaidoncontrolroomfloorplansandsequentiallynumberedtoidentifyandanalyzecontrolroomtrafficpatterns.Thetrafficpatternanalysiswasconductedasfollows:oAssembleFunctionalSequenceDiagramsforeacheventoObtaincontrolroomfloorplandrawingsoSketchthetrafficpathsforalloperatorsasrequiredbytheeventsequenceoIdentifyfunctional(operational)dependencies,asrequired.OutputsofthissubtaskareFunctionalSequenceDiagramsandTrafficDiagramchecklists.2.4.3.2VerifyHumanEngineeringSuitability-Theobjectiveofthissubtaskwastoidentifyman-machineinterfaceproblemsthatmayaffecttaskperformance,butthatmaynotbeevidentincomponentsurveys.Therearefourmajordesignissuesthatthissubtaskaddressed:1)thegroupingofcomponentswithrespecttofunction,sequence,importance,andfrequency-of-usecrite-ria;2)controlanddisplayintegrationtoensurethatassociatedcontrolsanddisplaysarenotdispersedandthattheirdesignsarecompatible;3)componentdiscriminationthroughenhancementssuchasdemarcationandcodingtechniques;and4)panellayoutsforconsistencyofconventionsacrossallpanels/units.Specificchecklistitemsregardingtheaboveissueswereusedascompliancestandards.Thefunctionalgroupswereidentified.inthesystemandsubsystemdefinitionofTask1.Theextenttowhichfunctionalgroups/systems/subsystemsdefineanappropriatefunctionalgroupwithrespecttooperationalrequirementswasthenassessedusingtheSpatial-OperationalSequenceDiagrams.Thesediagramsidentify:1)thecomponentswhichareinvolvedincarryingoutthesubsystemfunctions,2)thesequenceofcomponentuse,and3)theassociatedcontrolsanddisplaysforaparticularaction.Inaddition,byidentifyingcorrespondingfunctionsbetweencontrolpanelsandunits,whereapplicable,127

locationandsequenceaspectsofthelayoutconsistencywereassessed.Thechecklistcriteriaitems(AppendixA)wereappliedtoeachSpatial-OperationalSequenceDiagramsheet,anddiscrepancieswerenoted.AlltheSpatial-OperationalSequenceDiagramsinvolvingadiscrepantcomponentwereanalyzedwithrespecttothecomponent'sfrequency-of-useandimportanceasdeterminedinSubtask2.0.0.A2.0AValidateControlRoomFunctionsTheobjectiveofthistaskwasto:1)estimatetheimportanceandfrequency-of-useforequipment,and2)verifytheavailabilityofrequiredinstrumentionandcontrolsinthecontrolroom.2.0.0.1DevelopFrequencyandImportanceData-Theobjectiveofthissubtaskwastodeterminebothimportanceandfrequency-of-usedataforequipmentusedintasksequencesandselectedplantevents.Basedon:1)eventsequences,2)normaloperatingprocedures(e.g.,startup),and3)fr'equencyestimatesofnonprocedurally-boundoperations(e.g.,Boroncontrol,annun-ciatorresponses,etc.),frequencydataforequipmentuseisestimated.Theprocedureforestimatingtaskfrequencywasasfollows:1.Determineanestimateofthefrequencyofimplementationofnormaloperatingprocedures(e.g.,start-up,shutdown,changeinpower)byinterviewingsenioroperationspersonnel.2.Similarily,determineestimatesofthefrequencyofnonprocedurally-boundoperations(e.g.,boration,volumecontrol,etc.)foreachfunction.3.Assembledataonform.Developafrequencytableforfunctioncall-up.5.Developfrequencyestimationforeachinstrument/control/communicationrequirementbasedupon'stimatedfrequency-of-functionexecution.6.Sortandstorefrequencydata.Usingasimilartechnique,indicationofequipmentimportancewasidentifiedbyweightingtheimportanceoftheeventsshownonfrequencydataformandthensummingtheweightedfrequenciesofequipmentusesinfunctioncallups.Theoutputsandresultsofthesubtaskwereestimatedfrequency-of-useandimportancedataforcontrolroomequipmentbyevent/operation.2.0.0.2VerificationofEquipmentAvailabiTity-Theobjectivesofthissubtaskweretoidentifyavailability(presence)ofrequiredinstrumentationandcontrolsinthe128

c'ontrolroomtosupportperformanceofsystemfunctions,andtoidentifypotentiallyextraneouscontrolroomequipment.Thebasiccriteriaforthesubtaskwere:1)thecontrolanddisplaydesignsshouldmatchthetaskneedsandoperators'apabilities,2)frequentlyrequiredorimportantinstrumentationorcontrolsshouldbelocatedinthecontrolroom,and3)infrequentlyusedorunimportantinstrumentationshouldbeexcludedfromthecontrolroominventory.TheTaskAnalysis/ResponseSelectionDiagramswerecomparedwiththeFunctionalSequenceDiagramstoidentifytheequipmentrequirements.Toidentifyanydeficientareas,theresultswerethencomparedtothecontrolroominventorylistrepresentingthepresentequipmentcapabilitiesandcharacteristics..Allequipmentwasevaluatedforitsappropriatenesstooperatingrequirementsusingthechecklist(seeAppendixA).Thecalculatedfrequency-of-usedatawasexaminedtoidentifyequipmentwithveryhighorverylowfrequencyofuse.L'istswerepreparedforinfrequentlyusedequipmentlocatedinthecontrolroomandfrequentlyusedequipmentlocatedoutsideofthecontrolroom.Theselistswerealsoannotatedwiththeassessmentofthecomponent'simportancetooperationsaspreviouslydeveloped.Theoutputsandresultsofthissubtaskinclude:1)alistofrequiredcontrolroomequipmentlocatedexternaltothecontrolroom,2)alistofinfrequentlyusedequipmentlocatedinthecontrolroom,and3)alistofdiscrepanciesbasedonTaskAnalysisoftheequipmentrequirementsandthepresentcontrolroominventory.2.0.5Results/FindingsApproximately06HumanEngineeringDiscrepancieswhicharesummarizedonTable2.0.5.-1werenotedduringtheTaskAnalysis.IngeneraltheSt.LucieUnit1ControlRoomwasfoundtoaffordacceptableoperability.129 TABLE2.0.5-1TASKANALYSISHUMANENGINEERINGDISCREPANCIES(HEDs)File827330-387-9172020,25330002,03Q951HED86.5.l.l.a6.5.1.1.b6.5.1.1.(b,f)6.5.1.2.b6.8.l.l.b6.8.l.l.c6.8.1.2,6.8.2.l.a.l6.8.2.1.b6.8.2.1.c.26.8.2.2.(a,b)6.8.2.0.a6.8.3.l.a6.8.3.1.b6.8.3.2.(b,c)DescritionOperatorinformationrequirements.Informationrequired,completenessof.Lackofredundantinformation.Informationmustbeconverted.Componentgrouping.Groupingbyimportanceandfrequencyofuse.Frequencyofuse/panellayout.Control/displaycoiocation,sequenceofuse.Frequencyofuse/panellayout.Functionalgrouping.Unconventionalsequence.Positionstandardization.Locationinadequateforfineadjustments..Controlseparationinadequate.Longarraysofmeters.LocationRTGBs101,106;RemoteShutdownPanelRTGB101RemoteShutdownPanelRTGBs101,102,106RTGB106VariousRTGBs100-106RTGB101RTGB105RTGB105RTGB106RTGB102RTGB103VariousRTGB103 TABLE2.0.5-1TASKANALYSISHUMANENGINEERINGDISCREPANCIES(HEDs)File82p30-1112-IO1516,171920,2122HED86.9.1.16.9.1.1.a6.9.1.1.b6.9.1.l.c6.9.1.2.a.l6.9.1.2.b6.9.2.2.a6.9.2.2.a.l6.9.3.2.bDescritionColocationofrelatedcomponents.Control/displayproximity.Componentobscuration.Switchpositiondoesnotcorrespondwithassociateddisplay.Functionalreach.Sequenceofuse.Displaylocation.Displaynotabovecontrol.Displayprecision.-LocationRTGBs102,105,106RTGBs102,105,106VariousRTGBs102,103RTGB102RTGBs102-100RemoteShutdownPanelRTGBs101,105RTGB103 3.0IMPLEMENTATIONTheobjectivesofthisphaseare:1)preparationofschedulesforimplementationofselectedbackfits,2)developstandardizedbackfitsolutions,3)presentjustificationfornotcorrectingcertaindiscrepanciesand4)providecurrentstatusofimplementationprogram.3.1,DEVELOPBACKFITSCHEDULESBackfitimplementationprogramswerepreparedashumanengineeringdiscrepancieswereidentified,documented,andassessed.Schedulingofhumanengineeringdiscrepancybackfitswereafunctionof:oHumanengineeringdiscrepancypriorityoEngineeringandprocurringleadtimerequirementsandconstraintsoOverallplantoutageschedules.Scheduleswillbeperiodicallyreviewedandupdatedaspartoftheimplementationprogram.3.1.1PHASE3-ENHANCEMENTANDDESIGNSOLUTIONSPROPOSEDBACKFITCORRECTIVEACTIONThebasicprocedureemployedinidentifyingandselectingenhancementsanddesignsolutionsisbasedonFigure3-1.1.Analysisofcorrectionbyenhancement2.Analysisofcorrectionbydesignalternatives3.Assessextentofcorrection.3.1.2ANALYSISOFCORRECTIONBYENHANCEMENTeDiscrepanciesselectedforcorrectionwerefirstexaminedforpossiblecorrectionbyenhancement(labeling,demarcation,procedureaids,etc.).Eachhumanengineeringdiscrepancyisconsideredand,wheresuchcorrectionispossible,thediscrepancywasreassessedforitseffectonoperatorperformance.Asappropriate,humanengineeringdiscrepanciescanbereevaluatedviachecklistingandtaskanalysisuntilhumanfactorsengineeringsuitabilityisverified.Whereitwasdeterminedthatcorrectionbyenhancementwasnotpossible,thediscrepancywasanalyzedforcorrectionbydesignalternatives(seeFigure3-2).l,32 3.1.3ANALYSISOFCORRECTIONBYDESIGNALTERNATIVEIdentificationofdesignalternativeswasachievedbytheexaminationofthehumanengineeringdiscrepancy,referencetotaskanalysisdata,andidentificationofpotentialconstraints(e.g.,availabilityofequipment,Reg.Guide1.75,etc.)andwasdispositionedbytakingintoaccountplantsafety,designrestrictions,operatorperformance,andcosteffectiveness.Theacceptabilityofdesignalternativeswillbeverifiedbyfurtherevaluationusingthefollowing:oFunctionalanalysisoTaskanalysisoReapplicationofappropriatechecklists.Figure3-3presentsthegeneralactivityinvolvedinanalysisofcorrectionbydesignalternative.3.1.4EXTENTOFCORRECTIONForallhumanengineeringprogramsimplementedordiscrepanciesselectedforcorrectionbydesignalternatives,extentofcorrection(byenhancementorredesign)willundergoevaluation.Toachievetheassessment,asimplereapplicationofprogramguidelinesandverificationofhumanfactorsengineeringsuitabilitywillbeperformed.Figure3-4istheformusedtodocumentextentofcorrectionassessments.Incaseswhereagenericprogramisconsistantlyimplemented,ie.labeling,colorcoding,etc.onlyasampleofenhancementswillbere-evaluatedforextentofcorrectionsincetheresultswillbethesameinallcases.Correctionassessmentswilloccuraspartoftheimplementationprogramsincethefullextentofenhancementscannotbeevaluateduntilasamplesurveyoffieldimplementationismade.133 HUMANENGINEERINGDISCREPANCIESTOBEANALYZEDFORCORRECTION(FROMTHEHEDSELECTIONPROCESS)ANALYSISFORCORRECTIONBYENHANCEMENTCORRECTNITHENHANCEMENTSYESNOANALYSISTOIDENTIFYDESIGNIMPROVEMENTALTERNATIVESANDSELECTRECOMMENDEDSOLUTION~FUNCTIONANALYSIS~ALLOCATIONIMANIMACHINE~VERIFYALLOCATION----4I~SELECTPREFERREDDESIGNALTERNATIVEI~VAI.IDATEDESIGN----WDESIGNANDVERIFYIMPLEMENTANDDOCUMENTJUSTIFYANDDOCUMENTNotCorrectedFullyCorrectedASSESSEXTENTOFCORRECTIONSCHEDULEIMPLEMENTATIONDOCUMENTPartfally.CorrectedJUSTIFYANDDOCUMENTSCHEDULEIMPLEMENTATIONDOCUMENTFIGURE3-0ASSESSMENT:SELECTIONOFDESIGNINPROYEMENT134~

FIGURE3.2FLOWFORCORRECTIONOFHEDeBYENHANCNEMTCONSIDER.ENHANCHlEMTALTERNATIVESREEVALUATEHEDHKORESOLVEDtValngNUREQ04Mand0700ERRORASSESSIlEMT~2HEDSELECTEDFORCORRECTIONBYOESIQNALTERNATIVESDETAILEDKNHANCEIlENTDESIQN,NMJENTATIONANDODCUtlENTATIONDetaileddealgnpreceodtt,ealng0700guidelineawhenappn)pdata,aadealgnteq4remonta135 RGURES-SPROCESSFORANAl.YZlNGHEDDESlGNALTERNATlYESREVIEWSYSTEMFUNCTIONSANDTASKANALYSISIDENTIFYALTERNATIVESEVALUATEALTERNATIVESHKDRESOLVED2KRHAEXHAUSTEDEHHAHCEMKNTSOLUTIONSSSlbLEHHEDsNTRODUCE2JUSTIFY4DOCUMENTDESIGNFKASlbLKQINEERINQ?SCHEDULEIMPLEMENTDOCUMENT136 HEDBACKFITASSESSMENTHEDNO.FIGUREMPROPOSEDIMPLEMENTEDIENHANCEMENTa)LABELINGe)b)DEMARCATIONb)c)CODINGc)d)PROCEDURESd)o)TRA)NINGe)t11DESIGNALTERNATIVESI)RELOCATIONa)')REPLACEMENTb)c)CONFORMANCETOPROCESSCONVENTIONc)d)RELOCATIONOFFUNCTIONd)BACKFITBACKFlTREASSESSMENTOFPROBABLEERRORANDDEVIATIONC.EXTENTOFDEVIATIONFROM0700'UIDELINESN/ASOMECOMPLETE2.ERRORASSESSMENTl.ON3.4HIGHSIGNOFF:HEPMDATE:NO2.ERRORASSESSMENT0%NORESOLVEDRESOLVEDREDESlQNSACKFfT

6.66.86.91thru49,55,56,62thru97,99thru108,110thru137,139thru171,179,180,18110,2513,14139 3.2.2.DEMARCATIONAsaresultoftheDetailedControlRoomDesignReviewperformedonSt.LucieUnitNo.1,19ofthefindings(summarizedinTable3.2-1)identifiedremaintobeimplementedaspartoftheongoingdemarcationprogramattheSt.LucieSite.Asetofguidelineswasdevelopedtoprovidegeneralguidancefordesigningandintergratingdemarcationalongwithsummarylabelsandmimiccoding.Thedemarcationguidelinesensurethatthefinalproductmaintains:oSimplicityofdesignoIntergrationofsummarylabelsoUseofmimicswherebeneficialtotheoperatorandcurrentpanelspacepermits.Thefinaldemarcationdesignselectedwillbedevelopedusingtaskrequirements,system/functionalrelationship,andoperatingexperienceonSt.LucieUnitNo.1.Thedemarcationwillbecoordinatedwiththerelabelingprogram.Thefollowingis,alistoftheremainingfindingstobecorrectedbytheongoingdemarcationeffort.ThefindingsarelistedbysectionnumberastheyrelatetoFloridaPowerandLightCompaniestrackingsystem.AmoredetailedlistingalongwithdescriptionsofeachlineitemispresentedinSection3.5,ofthisreport.SECTIONNO.FILENOS.6.56.86.910,2565,9,11thru15,19,20,23,24,28,32,50,512,18140 3.2.3.ANNUNCIATORREVIEWAsaresultoftheDetailedControlRoomDesignReviewperformedonSt.LucieUnitNo.1,16ofthefindings(summarizedintable3.2-1)identifiedremaintobecorrectedaspartoftheongoingAnnunciatorReviewProgram.TheAnnunciatorReviewProgramaddressesthefollowingpointstoresolvethesubjectfindings:oRe-engravingofalarmwindowstoalleviate:CongestedtilesIncompletemessagesConfusingmessagesAddition,ofnewtilesStandarizationofabbreviationsoPrioritizationofalarmsbycolorcodingoReviewofalarmwindowstoidentifythosewithmultipleinputsrequiringreflashcapabilityoReviewofalarmlocationwithregardtoassociatedcontrolsoReviewofannunciatorstoidentifythosecommonalarmswhichcouldbecombinedintocatagoryalarms.Annunciatorengravingspecifications,prioritizationcodingandabbreviationlistarecontainedintheSt.LuciesiteAdministrativeProcedure0010137.Thefollowingisalistof.theremainingfindingstobecorrectedbytheongoingAnnunciatorProgram.ThefindingsarelistedbysectionnumberastheyrelatetoNUREG-0700andfilenumberastheyrelatetoFloridaPowerandLightCompaniestrackingsystem.AmoredetailedlistingalongwithdescriptionsofeachlineitemispresentedinSection3.5ofthisreport.SECTIONNO.FILENOS.6.2,56.31thru5,7,12,13,15,21,22,25,26,34,35141 0

3.2.4.CODINGCONVENTIONAsaresultoftheDetailedControlRoomDesignReviewperformedonSt.LucieUnitNo.1,111ofthefindings(assummarizedintable3.2-1)identifiedremaintobecorrectedaspartoftheestablishedcodingconventioneffort.ThecodingconventionsimplementedintheSt.LucieUnitNo.1ControlRoomareidentifiedinFloridaPowerandLightCompaniesSt.LucieSiteAdministrativeProcedure0010137andareconsistantwiththestandardsdevelopedduringtheoriginalcontrolroomdesignphilisophy.Thesubjectcodingconventionsareappliedto:oIndicatorlightsoPushbuttonsoMimicsoPowertrainsoMeterscalesoAutomaticactuationsignalsoControlhandlesThefollowingisalistoftheremainingfindingstobecorrectedbyapplicationofthedevelopedcodingconventions.ThefindingsarelistedbysectionnumberastheyrelatetoNUREG-0700andfilenumberastheyrelatetoFloridaPowerandLightCompaniestra'ckingsystem.AmoredetailedlistingalongwithdescriptionsofeachlineitemispresentedinSection3.5ofthisreport.SECTIONNO.FILENOS.6.16.36.46.56.66.820,229,4326,35,37thru41,43,47,48,49,51thru68,76,78,8034,36,40,53,55,70,73)80,81,82,84,87,88,98,100,102,103,104,106,108,113,114,116,117,118,119,120,121,127,130,132,141,142,143,146thru166,195thru207,212,213,25098,17816,17142

3.2.5.ENGINEERINGINTERGRATIONREVIEWAsaresultoftheDetailedControlRoomDesignReview'erformedonSt.LucieUnitNo.1thereare53ofthefindings(assummarizedinTable3.2-1)identifiedasrequiringdesignchangesremainingtobeimplementedand/orengineeringreviewcompleteda'ndfinaldispositioningassigned.Ofthe53findingsremaininginthiscatagory13havebeendispositionedfordesignenhancementcorrectiveactionandwillbeimplementedduringtheunitscurrent1983outage.Theremaining40requireadditionalengineeringreviewwithregardtodesignalternativestakingintoaccountqualificationofequipment,commonoperationalconcernsbetweentheSt.LucieSiteControlRooms,coordinationofconstructionsupportrequirementsandavailabilityofequipment/materials.TheremainingengineeringreviewitemswillbedispositionedbyJuly30,1984.ThefollowingisalistoftheFindingscurrentlyscheduledforimplementationduringSt.LucieUnitNo.1'scurrentoutage.SECTIONNO.FILENO.6.1116.5209,210,2586.712,14,18,196.86,8,26,376.920Thefollowingisalistofthefindingsscheduledtohavetheir.,evaluationsanddispositioningcompletedbyJuly30,1984.Theresultsofthe'subjectEngineeringIntergrationReviewwillbereportedtoNuclearRegulatoryCommissionHumanFactorsBranchbyAugust30,1984fortheirreviewofFloridaPowerandLightCompaniesproposeddispositioning.SECTIONNO.FILENO.6.119,21,25,38,41,426.2Continuedonnextpage.143

6.46.56.76.86.94,5,27,28,693,14,15,22,23,27,44,110,251thru254,264,26532,34,362,3$4$31$35$36$38$39,4012,22AbriefdescriptionofthesubjectfindingsandproposeddesignenhancementfoQowsforthosehumanengineeringdescrepancieswhicharecurrentlyscheduledtobeimplementedduringtheunits1983outage.InadditionadetailedlistingalongwithdescriptionsofeachlineitemispresentedinSection3.5ofthisreport.144 0

~P(odin:(Section6.1,FileNo.11)(HEDNo.6.1.1.3.g)Thereareseveralholesintheverticalpanelfromremovalofcomponents.Thisresultsinthedangeroftheentryofunwantedobjects.Theyshouldbecovered.~Resonse:(Section6.1,FileNo.11)Themeterswillbeinstalledorcoverswillbeplacedoveropeningsnolongerrequired.~Findin:(Section6.5,FileNo.209)(HEDNo.6.5.3.3.a.3)Legendcoverisnotheatresistantandappearstobecrackedand/orpartiallymelted,whichoftendistortsthelegend.~Resonse:(Section6.5,FileNo.209)Thedamagedlegendcoverswillbereplaced.Thelightbulbsusedwillbecheckedandifthewrongbulbshavebeenused,theywillbereplacedbythepropervoltageandwattagebulbtoreducethetemperature.Finding(Section6.5,PileNo.210)(HEDNo.6.5.3.3.a.3)Legendsareeithermissingormelted.Dynotapelabelshavebeenaddednextto"legend"lights.Operatorshavereportedthatthisproblemiscausedbyusingthewrongbulb.~Resonse:(Section6.5,FileNo.210)Thedamagedlegendcoverswillbereplaced.Thelightbulbswillbecheckedandifthewrongbulbshavebeenused,theywillbereplacedbytheproperbulb.145

~Findin:(Section6.5,FileNo.258)(HEDNo.6.5.5.1.a.5)Thewindowsonmechanicalcountershaveglareduetomaterialusedforwindowpane.~Resonse:(Section6.5,FileNo.258)Thewindowpaneswillbereplacedwithanon-glarematerial.~Findin:(Section6.7,FileNo.12)(HEDNo.6.7.2.1adcb)ThereadabilityoftheMetrascopeisadverselyaffectedbytheglarefromthenormalcontrolroomlightingontheCRTscreen.~Resonse:(Section6.7,FileNo.12)Ananti-glarescreenwillbeinstalledontheCRTtoreducetheglareproblemandimprovereadability.~Findin:(Section6.7,FileNo.14)(HEDNo.6.7.2.1.ce4)TheluminanceoftheCRTcharactersontheMetrascopeislessthantherequired23ft-candlesrequirementsforthecontrolroomnormallightlevel.~Resonse:(Section6.7,FileNo.14)Themaximumluminanceofthescreenwillbecheckedtoseeifthelevel:.canbeincreased.Engineeringwillconductareviewtodeterminehowtoimprovereadabilityofthescreen.146 Fr(odin:(Section6.7,FileNo.18)(HEDNo.6.7.2.3.b)TheviewinganglebetweentheoperatorsnormalworkstationandtheplaneoftheCRTfaceoftheMetrascopeislessthan45ointhehorizontaldirection.ThismakesreadingoftheMetrascopeverydifficult.Themetrascopeneedstobemoved12inchesonthepaneltowardtheoperatortomakethisangle45oe~Resonse:(Section6.7,FileNo.18)TheMetrascopewillbemovedduringthe1983refuelingoutagetowardtheoperatorduringthereworkofRTGB104panelfortheadditionofSAS.I~F(odin:(Section6.7,FileNo.19)(HED6.7.2.3.d.l.a)TheMetrascopeislocatedmorethan45ototherightoftheoperatorsstraightaheadlineofsight.MovementoftheMetrascope12inchestotheleftwouldmakethisangle45o.~Resonse:(Section6.7,FileNo.19)TheMetrascopewillbemovedduringthe1983refuelingoutagetotheleftduringreworkofRTGB104panel.~Findin:Findin:(Section6.8,FileNo.6)HEDNo.6.8.1.l.c)Theannunciatoracknowledge,reset,andtestcontrolsarefrequentlyusedbutnotlocatedonaprimarylocationofpanel103.~Resonse:(Section6.8,FileNo.6)ThesecontrolswillbemovedtotheedgeofthebenchboardwiththeadditionofSASandthereworkofRTGB103.147

~Findin:(Section6.8,FileNo.8)(HEDNo.6.8.1.2)Processcontrollerslocatedonverticalpanels105and106arenotwithinthenormalandextendedreachofthe5thpercentilefemale.Thesearefrequentlyusedandshouldbemovedwithinthefunctionalreachareatominimizeerrorpotential.~Resense:(Section6.8,FileNo.8)Panels105and106willbereworkedwherefeasiblewhilemaintainingelectricalphysicalseparationandelectricalandmeasurementtrainintegrity.~Findin:(Section6.8,FileNo.26)(HEDNo.6.8.2.2a2b)Holdup-TankLevelandChargingPumpindicatorsarearrangedfromright-to-leftratherthanleft-to-right.RotarycontrolsarrangedinA-C-BsequenceinsteadofanA-B-Csequence.~Resonse:(Section6.8,FileNo.26)Hierarchallabelinganddemarcationwillbeimplemented.Holduptanklevelindicatorwillbearranged)eft-to-right.Chargingpumpsareconsistentlyorientedduetoelectricalbusconfiguration.(ThereisatwobussystemandCpumpcanbepoweredfrombusAorBusB.)~Findin:(Section6.8,FileNo.37)(HEDNo.6.8.2.3.a)Annunciatoracknowledge,reset,andtestcontrolsarenotsimilarlylocatedonpanels101,103,and105.~Resonse:(Section6.8,FileNo.37)Thecontrolswillberelocatedsothattheyarelocatedatthebottomofall3panels.148

~Find(0:(Section6.9,FileNo.20)(HEDNo.6.9.2.2.a.l)Displaysfortheletdownlevelandletdowntemperaturecontrollersarenotmountedabovetheirrespectivecontrollers.~Resonse:(Section6.9,FileNo.20)ThedisplaysandcontrolswillbefunctionallygroupedduringtheRTGB105upgrade.149 3.2.6.ADMINISTRATIVEANDTRAININGAsaresultoftheDetailedControlRoomDesignReviewperformedonSt.LucieUnitNo.1,62findings(summarizedintable3.2-1)identifiedremaintobeincorporatedintositeadministrativeproceduresand/ortheoperatortrainingprogram.Thefollowingisalistoftheremainingfindingsstilltobeincorporated.ThefindingsarelistedbysectionnumberastheyrelatetoNUREG-0700andfilenumberastheyrelatetoFloridaPowerandLightCompaniestrackingsystem.AmoredetailedlistingalongwithdescriptionsofeachlineitemispresentedinSection3.5ofthisreport.SECTIONNO.6.16.26.36.46.56.66.7FILENOS.12thru15,32,34,4321323,296thru171,16,24,46,77,214thru222,224thru22757thru61,172thru1775thru9,26,27,28,35150 e

PROGRAMTITLE6.16.26.36.46.56.66.76.8ST.LUCIHUNITNO.1HUMANENGINEERINGBACEPITPROGRAMSUMMARYINDEKPORBACKFITPROGRAMNUREG0700SECTIONNO'S/NO.ITEMSPHRSECTION6.9PROGRAMTOTALS1.LABELING1312341612242.DEMARCATION3.ANNUNCIATOR4.CODINGCONVENTION5.ENGINEERINGINTER-GRATIONREVIEWS6.ADMINISTRATIVE/TRAININGPROCEDURHS-CONTROLS15321271197151316537.JUSTIFICATIONOPNOACTIONITEMS8.INVALIDPINDINGS9.COMPLETED2412231121020171422916ITEMSUB-TOTALS/SECTION434485265181365122732732TABLE3.2-1151 3.3WRITTENJUSTIFICATION/NOCORRECTIVEACTIONINTENDED3.3.1LOWERRORASSESSMENTAsaresultoftheDetailedControlRoomDesignReviewandHumanEngineeringDescrepancyReviewTeammeetingsonSt.LucieUnitNo.1thereare229findings(summarizedintable3.2-1)whichwereidentifiedasrequiringnocorrectiveaction.TheseitemsarepresentedindetailalongwithFloridaPowerandLightCompany'sjustificationfortakingnocorrectiveactionontheseitems.ThefollowingisalistoffindingsbysectionnumberastheyrelatetoNUREG-0700andfilenumbersastheyrelatetoFloridaPowerandLightCompaniestrackingsystem.AcompletelistingofallitemsalongwithabriefdescriptionsofeachlineitemispresentedinSection3.5ofthisreport.SECTIONNO.FILENOS.6.11,2,3,5thru10,16thru18,23,24,26thru31,33,37,39,406.26.36.46.56.66.76.86.96,8,10,11,14,19,20,24,28,40,41,441,2,3,19,20,21thru25,29,36,42,44,46,50,74,75,79,81,82,83,852,7,8,9,11,13,17,19,20,25,26,28thru33,35,37,39,42,43,47,51,54,56)59,66,67,72,74,75,76,78,79,83,85,86,90thru97,99,101,105109,111,112,115,122,123,124,125,126,128,129t131t133t134t135t136>137u139t140t144u145t167thru170,174thru194,208,211,223228,229,230,231,232,233,234,235,236,255,257,259,260thru26350thru54,1091thru4,10,11,13,15,16,17,20thru25,29,3031,331,7,18,21,22,29,30,34,41,42,43thru493thru1115,16,17,19,21152

~Findin:(Section6.1,FileNo.1)(HEDNo.6.1.1.1.b)Firepanelandradiationmonitorcomputerpanelareoutsidethecontrolroomprimaryoperatingarea.Bothpanelsrequireoperatorresponsetoalarmsand/ortotakelogreading.~Resonse:(Seotion6.1,FileNo.1)Atleasttwolicensedoperatorsareondutyinthecontrolroomatalltimes.Oneoperatorcanleavetheprimaryareatoansweralarms,takelogreadings,etc.FloridaPowerandLightCompanycontendstheexistingoperatingstaffandadministrativecontrolsallowforeffectiveoperatorresponsetonormalandoffnormaltaskrequirementsandintendsnoactiononthisitem.~Findin:(Seotion6.1,FileNo.2)(HEDNo.6.1.1.l.b)Radiationmonitorpanelisobscuredbythemaincontrolboardandoperatorcouldfailtodetectadangerouscondition.~Resonse:(Seotion6.1,FileNo.2)Theradiationpanelisalarmedonthemaincontrolboardandattheradiationmonitorpanelaswell.Thefreecontrolroomoperatorrespondstoanyalarmandtakesthenecessarycorrectiveaction.FloridaPowerandLightCompanycontendsthatthestaffinglevelandtaskassignmentsofthecontrolroomoperatingstaffallowforquickandefficientresponsetonormalandoffnormalconditions.FloridaPowerandLightCompanyintendsnoactiononthisitem.153

~Findin:(Section6.1,FileNo.3)(HEDNo.6.1.1.1.b)Variouscontrolsanddisplaysi.e.,isolationdampersforthecontrolroomkitchenandtoiletarelocatedonthebacksideofRTGB101.Thesecontrolsmustbecheckedafteracontainmentisolationsignalisreceivedtoinsurethattheyareintheproperposition.~Resonse:(Section6;1,FileNo.3)Thesubjectequipmentisverifiedaspartofthecontrolroomoperatorsverificationofthecontainmentisolationsignal.Thesubjectequipmentdoesnotrequireimmediateoperatorverificationandarecheckedaftercriticalresponsesareperformed.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.1,FileNo.5)(HEDNo.6.1.1.3.a)Controlroomauxiliarypanelandradiationmonitorpanelcannotbeviewedfromthecontrolroomoperatorsdesk.~Resonse:(Section6.1,FileNo.5)Thecontrolroomauxiliarypanelandradiationmonitorpanelareprovidedwithauditoryandsupervisoryalarms.Thefreecontrolroomoperatorrespondstoanyalarmandtakesthenecessarycorrectiveaction.FloridaPowerandLightCompanycontendsthatthestaffinglevelandtaskassignmentsofthecontrolroomoperatingstaffallowforquickandefficientresponsetonormalandoffnormalconditions.FloridaPowerandLightCompanyintendsnoactiononthisitem.154

~Findin:(Section6.1,PileNo.6)(HEDNo.6.1.1.3.c,d)Controlroomauxiliarypanelislocatedinbackofpersonnelbarrier.Thiscouldcauseaprobleminaccessingpanelduringemergenciesasnon-licensedpersonnelloiterinthisareaduringplanttransients.~Resonse:(Seotion6.1,FileNo.6)Controlroomoperatorshaveauthoritytoclearthecontrolroomofnon-essentialpersonnelatanytime.Thetechnicalsupportcenterisprovidedtoallowadditionalplantstaffaccesstoplantinformationandprovideassistancewithoutaddingtotheconfusionofthecontrolroomenvironment.Finding(Seotion6.1,FileNo.7)(HEDNo.6.1.1.3.d)Circulationpatternsinthecontrolroomareinterferedwithbythearrangementofchairs,desksandconsoles.Movementisobstructed.~Resonse:(Seotion6.1,FileNo.7)Extrachairsandofficefurniturei.e.,non-functionalequipmentinexcessofshiftpersonnelrequirementshavebeenremovedfromthecontrolroomtoimprovecirculationpatternsandaccesstothecontrolpanels.PloridaPowerandLightCompanyintendsnofurtheractiononthisitem.155

~F(odin:(Section6.1,FileNo.8,9,and10)(HEDNo.6.1.1.3.f(1))Paneltowall/panelspacingislessthan50inchesbetween:1)InternalsvibrationmonitorandRTGB2)ReactorProtectionSystemandoperators'esk3)HydrogenanalyzerandRTGB4)RTGBandDEHcontrolcabinet~Resense:(Section6.1,FileNo.8,0and10)Thesubjectpanelareashavecontrolswhicharenotnormallyused.Theyareusedmainlybymaintenancepersonnelperformingperiodictestingofthesubjectequipment.Theavailablespaceisadequateifnecessarytosupportunobstructedentranceintothedesiredcontrolareaandallowsingleoperatororientedtaskstobeperformedwithoutanyobstruction.FloridaPowerandLightCompanyintendsnofurtheractiononthisitem.~Find(a:(Section6.1,FileNo.16)(HEDNo.6.1.1.6.a)Shiftsupervisorsofficeislocatedbehindcontrolpanel106anddoesnotprovidehimgoodvoiceandvisualcontactwiththecontrolroomarea.~Resonse:(Section6.1,FileNo.16)(HEDNo.6.1.1.6.a)Theshiftsupervisorsofficewasmovedtotheofficeareawhichwasdesignatedasthenuclearwatchengineersoffice.Thenewofficelocationprovidestheshiftsupervisorwithgooddirectvisualandvoiceaccesstothecontrolroom.FloridaPowerandLightCompanyintendsnofurtheractiononthisitem.156

~Findin:(Section6.1,FileNo.17,18,27)(HEDNo.6.1.2.2.b(1))Controlsareoutoffunctionalreachofthe5thpercentilefemale.ControlsarelocatedonlinerepeatpanelandverticalsectionsofRTGB's:101,102,103,104,105,106.~Resonse:(Section6.1,FileNo.17,18,27)AfieldwalkdownofthesubjectcontrolroomwasperformedonMarch8,1983,withFloridaPowerandLightCompanyrepresentativesfromoperations{includinga5th%femaleoperator),EngineeringandHumanFactorsReviewTeamrepresentativesfromEssexCorporation.Thefieldsurveyresultsverifiedthatthe5th%femaleoperatorcouldreachandoperateallrequiredcontrolswithoutbendingorexcessivestretchingexceptforthe125voltDCbustietrappedkeyswitcheslocatedoncontentboard101,reactortrippushbuttonsoncontrolboard101,turbinetrippushbuttonsoncontrolboard101andbarrierwallvalvesoncontrolboard101.Theseitemswhichcouldnotbereachedandareassociatedwithtimebasedoperatorresponse,willberelocatedtomoreaccessibleareaspriortotheunitsreturntoservicefromthecurrent1983outage.Astopstoolisprovidedforthosecontrolswhichmustbeoperatedduringsurveillancetest,inspectionand/oradjustmentofnon-timebasedcontrolsi.e.,125voltDCtiebreakeralignment.ThesubjectworkisbeingperformedinresponsetofileNo.19ofSection6.5.FloridaPowerandLightCompanyintendsnoactionontheabovefindings.157

~Findin:(Seotion6.1,FileNo.23)(HEDNo.6.1.2.2.e(2))Thefollowingcontrolsanddisplaysarenotwithin28inchesofoneanotherinhorizontaldisplacement:ITEMTYPENOMENCLATURELOCATIONPANELControllerMetersLetdownPressRCSPressureLetdownpressisadjustedtomaintainRCSpressureat240-150psigduringplantheatup014C14,C16,D10,D12105ControllerLetdownLevelD12105Meters,Recorder,ControllersD19>B28>Xll>X13103PressureLevelLetdownlevelisadjustedtomaintainpriorlevelat35%during'lantheatupandwhenachargingpumpisstartedorstoppedControllersMetersRotariesATMSTMDumpsD5,D6RCP'sandOtherAssoc.ControlsXl,5,6,7Y1-8,Z1-4ReactorCoolantLoopTempCHA-DD15-18ATMsteamdumpvalvesareopenedandclosedtoadjustFAvgduringplantheatup102103103MetersRotariesSEAPandTotalCoreFlowChannelsMA-MDCoreflowismonitoredwhilestartingRCP'sStm.Gen.BlowdownControlsC20-23Y21,22,2326,2703106ControllersStm.Gen.BlowdownRateProceduresaystoopenvalvesandthenverifyflowoncontrollersatMETtowercontrolroomconsoleMeterologicalPanelinbackof102/103158 ITEMTYPENOMENCLATURELOCATIONPANELControllersShutdownCoolingReturnFlowD25ShutdownCoolingReturnHCV-3437D40ThecontrollersareadjustedtobeginheatingupRCS.RCStemp.indicationsareon104and103.106106RotaryRotaryRotaryMeterMeterMeterDieselGenerator1B4.16KVBus1B3DieselGenerator1BControlDieselGenerator1BVoltageAdjustIncomingvoltsSynchronizingRunningvoltsControlsareadjustedwhilemonitoringdisplayswhenstartingBdieselgeneratorY30Y29Z26A20A21A22101101101101101101RotariesInd.LightsAux.FeedwaterPumpsandValvesX9-12,Y19,Y27,102Y23,Y24RecorderMeterRotariesWiderangeSGlevelsTheauxiliaryfeedsystemisusedA2tofilltheSG'spriortostartupA25,A26Aux.FeedwaterPumpandValvesX9-12,Y19,Y27,Y23,Y24PAP103102RecorderSGLevelSGlevelrecordermustbemonitoredduringtestingoractualactuationoftheAux.FeedSystemC2102MetersMetersPushbuttonsleverProtectiondisplaysMETRASCOPEA8CPS/%PowerA1-4DPMBl-4RodcontrolsY12-16,Group1,Group2Z2-7ThecontrolsanddisplaysareallD1,D1usedduringstartup.InparticularCPS/%PWRandDPM'aremonitoredforindicationsofcriticalitywhilepullingrods.104104104104104159

~Resonse:(Section8.1,FileNo.23)Thesubjectcontrolsanddisplaysarefunctionallygroupedfornormalpoweroperationandoffnormal/emergencyoperationbasedonimportanceofcontrol/displayfunction,timeresponserequirementsandavailablespace.Theconditionsmentionedaboveareforplantnormalstartup/shutdownandsurveillancetesting.Therequirementsforcontroldisplayconfigurationbasedonalltheaboveconditionsareconflictingduetothenatureofthetaskrequirementsforeachplantconditioni.e.,normalstartup/shutdownversusnormaloperationandemergencyoperation.FloridaPowerandLightCompanycontendsthatthesubjectdisplaysarefunctionallygroupedforthemostfrequentlyperformedtasksandalsoforemergencyoffnormalconditionswheretimebaseoperatorresponsesarerequired.FloridaPowerandLightCompanyisapplyingdemarcationandhierarchicallabelingtothecontrolboardstohelpimprovesegregationofequipmentandbetteridentifyassociatedcontrolsanddisplays.FloridaPowerandLightCompanyintendsnoactionontheabovefindings.160

~Findin:(Section6.1,FileNo.24)(HEDNo.6.1.2.2.e(2))Mostannunciatortilesarenotwithinthemaximumrecommendeddisplacementfromtheirassociatedannunciatorcontrols.~Resonse:(Section6.1,FileNo.24)Asaresultoftheongoinglabelingandcodingconventionprogramannunciatorlegendplatesarebeingincreasedtoapproximately1/4"toimprovereadabilityfromcontrolstations,standardizedabbreviationsarebeingimplementedtoreducemessagelengthandcolorprioritycodingisbeingappliedtothesubjectannunciatorwindowstobetteridentifyimportanceandtimeresponserequirementsofalarmwindows.FloridaPowerandLightCompanycontendsthatthereareanadequatenumberofannunciatoralarmcontrolstationsfunctionallylocatedthroughoutthecontrolroomandthatthepresentlabelingandcodingprogramswillsignificantlyassistcontrolroomoperatorsinassessingandrespondingtoincomingalarmsfromthesecontrolstations.FloridaPowerandLightCompanyintendsnofurtheractiononthisfinding.~Findin:(Seotion6.1,FileNo.26,31)(HEDNo.6.1.2.3.h(3),6.1.2.7.a)ThereisminimumwritingspaceprovidedforoperatorsworkingattheCRTconsolelocatedwiththeReactorProtectionSystempanels.Thereshouldbeatableordeskprovidedadjacenttotheconsole;towriteonandplacebookson,etc.~Resonse:(Section6.1,FileNo.26,31)AsaresultoftheTMImodificationsmadetotheSt.LucieUnit1controlroomchairsandofficeequipmentwereevaluatedalongwithcirculationrequirements.Asaresultofthereview,non-functionalofficeequipmentwasremovedandverificationoftheexistingequipmentwasprovided.FloridaPowerandLightCompanycontendsthattheexistingcontrolroomwritingsurfacesandlayoutareasareadequateandintendsnofurtheractiononthisitem.161

~Findin:(Section6.1,FileNo.28)(HEDNo.6.1.2.5.a(1))Controlsonthehotshutdownpanelarelessthan34inchesfromthefloor.~Resonse:(Section6.1,FileNo.28)Thebottommostrowofselectori.ee2rotarycontrolsmountedlessthan34inchesfromthefloor(approximately30inchesfromthefloor).Thesubjectcontrolswitcheshaveclearlylabeleddetentpositionsaswellasassociatedindicatorlightstatus.Thesubjectcontrolfunctionsareeitheronorof,noadjustmentsofspeedand/orflowarerequired.FloridaPowerandLightCompanycontendsthatthereislittletonoerrorassessmentassociatedwiththeabovefindingandintendsnoactiononthisitem.Fin~inK:(Seotion6.1,FileNo.29)(HEDNo.6.1.2.5.a(1))Somedisplaysinthecontrolroomarenotbetween41and70inchesfromthefloor.~Resonse:(Section6.1,FileNo.29)Asaresultoftheongoinglabellingandcodingconventionprogramcontrolroomindicatorcomponentlabelsarebeingre-engravedtoimproveletteringtobackgroundcontrastoflabelmessagesandreducetheeffectsofglare.Thiseffortwillhelpoperatorsquicklyidentifynecessarydisplays.Inaddition,rangecodingisbeingaddedtodisplaysinthecontrolroomsuchthatoperatorscanquicklytellataglancewhetherequipmentparametersarewithinthedesiredlimits.Displaysarearrangedbasedonimportance,frequencyoftaskandavailablespace.FloridaPowerRLightCompanycontendsthattheexistingarrangementofdisplaysisconsistentwiththeirintendedfunctionandintendsnofurtheractiononthisitem.162 0

~Findin:(Section6.1,FileNo.30)(HEDNo.6.1.2.5.b(2))ThesmallwiderangeCPShorizontalmeterlocatedontheReactorProtectionSystempanelisover70incheshighmakingitdifficulttoread.~Resonse:(Section6.1,FileNo.30)Whenmonitoringcountspersecondduringstartupoperationsthecontrolroomoperatorsusetheprimaryindicationlocatedoncontrolpanel104whichiseasilyreadableandfunctionallygroupedwiththecontrolsassociatedwithcontrollingreactivity.Thedisplaydescribedintheabovefindingisnotusedforanyoperatortasks.FloridaPower8(:LightCompanyintendsnoactionofthisitem.~Findin:(Section6.1,FileNo.26,31)(HEDNo.6.1.2.3.h(3),6.1.2.7.a)ThereisminimumwritingspaceprovidedforoperatorsworkingattheCRTconsolelocatedwiththeReactorProtectionSystempanels.Thereshouldbeatableordeskprovidedadjacenttotheconsole;towriteonandplacebookson,etc.~Resonse:(Section6.1,FileNo.26,31)AsaresultoftheTMImodificationsmadetotheSt.LucieUnit1controlroomchairsandofficeequipmentwereevaluatedalongwithcirculationrequirements.Asaresultofthereview,non-functionalofficeequipmentwasremovedandverificationoftheexistingequipmentwasprovided.FloridaPowerandLightCompanycontendsthattheexistingcontrolroomwritingsurfacesandlayoutareasareadequateandintendsnofurtheractiononthisitem.163

~Findin:(Section6.1,FileNo.33)(HEDNo.6.1.4.l.i)Instructionsfordonning,doffingandcontrollingprotectiveequipmentarenotprovided.Anycontroloverthisisinformal;however,healthphysicsprovidestrainingindonningequipment.~Resonse:(Section6.1,FileNo.33)Allsitepersonnelrequiredtoworkinradiationareasaretrainedintheuseofrespiratorsandreceiveperiodicrequalificationtraining.ThetrainingrequirementsandfrequencyareconsistentwithFederalandsiterequirements.ThesiteHealthPhysicsGroupisresponsibleforcontrollingandmaintainingthoseprotectiveequipmentstationsrequiredonsite.FloridaPowerdcLightCompanymaintainsthattheexistingadministrativecontrolsandinplacetrainingrequirementsforsiteradiationtrainingareadequateandintendsnofurtheractiononthisitem.164

~Find(0:(Section6.1,FileNo.37)(HEDiso.6.1.5.1.a)Temperatureinthecontrolroomhasreached80oF-thistemperatureisoutsidetherecommended74-76oFrange.~Resonse:(Seotion6.1,FileNo.37)Thesubjectcontrolroomisprovidedwithredundant100Focapacityairconditioningunitswhichautomaticallycontrolthecontrolroomenvironment.Environmentalsettingsaremaintainedbythethermostatwhichcanbesetbycontrolroomoperatingpersonneltothedesiredtemperature.Controlroomtemperaturerecoverytimevariesbasedontrafficandheatload.Theinstalledequipmentiscapableofmaintainingtemperatureandhumiditywithinacceptableranges.FloridaPower2LightCompanyintendsnoactiononthisitem.~F(odin:(Section6.1,FileNo.39,40)(HEDNo.6.1.5.3.a)Ambientilluminationlevelsinthecontrolroomaretoohighapproximately88ft-candles.Measuredreadingaveraged88ft-candlesonhorizontalsurfacesand45ft-candlesonverticalsurfaces.~Resonse:(Section6.1,FileNo.39,40)Thelightlevelsinthecontrolroomaremaintainedbycontrolroompersonnel.Thecontrolroomoperationpersonnelmayincreaseordecreaselightlevelsastheydesirebyswitchingonoroffselectedbankofnon-vitalA.C.lightingFloridaPower(3(:LightCompanybelievesadequatecontrolsexisttoallowcontrolroomoperatorstosetlightlevelsasdesiredtosupportperformanceofdesiredtasksi.e.,mostmaintenanceandcalibrationworkisdoneduringdayshiftrequiringhigherlightlevelsforthesubjectactivityandonbackshiftduringperiodsoflowactivitylightlevelsarereducedtodesiredlevels.FloridaPowerRLightCompanyintendsnoactiononthisitem.165

~F(ndin:(Section6.2,FileNo.4)(HEDNo.6.2.2.3.a)Thenewradiationmonitoralarmandthefirepanelalarmaresufficientlysimilarthattheyareconfusing.~Resonse:(Section6.2,FileNo.4)Thesubjectalarmsaredifferentinthatthefirealarmandtheradiationmonitoralarmusedifferentauditorycodingandspecialseparationofsoundsource.Onealarmusesapulsingtonewhiletheotherissolidandthesubjectsoundsourcesarelocated180degreesaparti.e.,onoppositesidesofthecontrolroom.FloridaPower8cLightCompanyintendsnoactiononthisitem.166

~Findin:(Section6.3,FileNo.6)(HEDNo.6.3.1.2.b(1))Thereareanumberofalarmsforwhichtheoperator'sonlyfunctionistocallanauxiliaryfieldoperatortoreportthealarm.Althoughauxiliaryoperatorshavetheirownannunciatorpanels,theyarefrequentlyfromtheirstationanddonothearthealarm.~Reonse:(Section6.3,FileNo.6)Thesubjectalarmsaresupervisorytroubleannunciators.Theyareprovidedinthecontrolroombecauseitisthecontrolroomoperator'sandnuclearplantsupervisorsresponsibilitytodirectfieldpersonnel.Thisoperatingphilosophymaintainsacentralizedcontrolallowingfortheproperpriorizationoffieldworktasksbasedonoverallplantconditionsandrequirements.FloridaPower(3(:LightCompanybelievestheexistingsystemdesignandadministrativeresponsibilitiesareadequateandintendsnoactiononthisitem.~Findin:(Section6.3,FileNo.8)(HEDNo.6.3.1.3.a(1))Thereisnofirstoutannunciatorpanelforthereactorsystem.~Resonse:(Section6.3,FileNo.8)Theplantisprovidedwithasequenceofeventscomputerandprinterwhichmonitorsandrecordspre-selectedrelaycontacts.Thisinformationisavailabletotheoperatorifdesiredandispresentedinanorganizedtime/eventsequencedordersothatananalysiscanbemadeofthetransientbyplantstaff.Inaddition,FloridaPowerRLightCompanyisinstallingaSafetyParameterDisplaySystemwhichistobeusedasanoperatoraidindeterminingthetypeofeventandpossiblecorrectiveactionstobetaken.FloridaPower8cLightCompanydoesfeelthatithasadequatesequenceeventlogsfordeterminingthesequenceofeventsforanalyzingaplanttripandintendsnofurtheractiononthisitem.167

~Findin:(Section6.3,FileNo.10,11)(HEDNo.6.3.1.5)Annunciatorsonthepanelarenotprovidedwithanindicationthatthealarmhascleared.~Resonse:(Section6.3,FileNo.10,11)ItisFloridaPower(t(;LightCompanyoperationalphilosophythatannunciatorextinguishmentisadequateindicationofaclearingalarmsincethereshouldbenoalarmspresentduringnormaloperatingconditionsotherthansomeplantpermissivesandpossibleequipmentoutofserviceformaintenance.Duringtransientconditionssuchasaplanttriptheringbackfeaturewouldintroduceexcessivevisualandauditorynoiseinthecontrolroomenvironment.Itwouldalsorequireanadditionaloperatormanualcontrolactiontoacknowledgeeachclearingalarmthustaxingtheoperatorandincreasetheriskofoperatorerrorduringapotentiallycriticaltimeduetotheshearvolumeofinformationwhichmustbeprocessed.Undernormalandsteadystateconditionsoperatorstakedeliberatecorrectiveactionstoclearalarmsandmonitorsystemstatustoensurethealarmsconditioniscleared.Inaddition,FloridaPower(l(:LightCompanyisimplementinganannunciatorprioritycolorcodingconventiontothealarmwindowswhichwillaidtheoperatorinassessingtheimportanceofthealarmandthetimeresponserequiredtoimplementcorrectiveactionandcleartheoffnormalcondition.FloridaPower2LightCompanyintendsnofurtheractiononthisitem.~Findin:(Section6.3,FileNo.14)(HEDNo.6.3.3.l.a)Thelinerepeatpanelissetuptomimictheswitchyardbutannunciatorsaboveboardarerandomlyplaced.~Resonse:(Section6.3,FileNo.14)Thelinerepeatpane)isapproximately60incheswideandapproximately60incheshigh.Thepanelhastheswitchyardassociatedbreakersfortheplantfeedersandtiebreakers.Theannunciatortilesassociatedwiththesubjectequipmentarelocateddirectlyabovetheassociatedcontrolsonthelinerepeatpanel.Thecontroldisplayconfigurationonthelinerepeatpanelisfunctionallygroupedandclearlylabelled.FloridaPower8cLightCompanycontendsthepanelconfigurationisfunctionallygroupedandintendsnoactiononthisitem.168

~Find)0:(Section6.3,Pilello.19)(HEDNo.6.3.3.1.c(2))Lampreplacementonannunciatorsystemsubjectscontrolroomoperatorstoshockhazard.~Resonse:(Section6.3,FileNo.19)Operatorshavenon-conductivelampreplacementtoolavailableinthecontrolroomforusewhenreplacingthesubjectbulbs.FloridaPower(t(:LightCompanyintendsnoactiononthisitem.~Findin:(Section6.3,FileNo.20)(HEDNo.6.3.3.2.b)Annunciatorflashrateshouldbebetween3and5seconds.Flashratescheckedaveraged2seconds.~Resonse:(Section6.3,PileNo.20)Theerrorassessmentassociatedwiththeabovefindingisextremelylow.Theexistingannunciatorsystemflashratedoesprovidethecontrolroomoperatorwithsufficientvisualstimulustoidentifytheactivatedannunciatorwindow.FloridaPowerRLightCompanyintendsnoactiononthisitem.~Findin:(Section6.3,FileNo.24)(HEDNo.6.3.3.2.d)Theannunciatorwindowforthemaintransformer1Bgroundcurrenttriphasyellowedandisdifficulttoidentifyasilluminated.~Resonse:(Section6.3,FileNo.24)Asaresultofthelabellingprogramallannunciatorwindowsarebeingre-engravedwithlargerfrontandstandarizedabbreviations.Thesubjectwindowwillbereplacedaspartofthiseffort.FloridaPowerdcLightCompanyintendsnofurtheractiononthisitem.169 Finding:(Section6.3,FileNo.28)(HEDNo.6.3.3.3.d(1))Therearemorethan50tilesin8ofthe17annunciatorpanels.~Resonse:(Section6.3,FileNo.26)Asaresultofthelabellingprogramannunciatorwindowsarebeingengravedwithlargerfront,standardizedabbreviations,matrixcodingandreflashcoding.Thesubjectlabellingprogramwillimproveannunciatormessagereadabilityandoperatorperformance.FloridaPower8LightCompanyintendsnofurtheractiononthisitem.~Findin:(Section6.3,FileNo.40)(HEDNo.6.3.4.1.d(1))Annunciatorbrightnessisnotuniform,makingitdifficultforoperatorstotellifonelightisout.~Resonse:(Section6.3,FileNo.46)Allannunciatorwindowsaretestedoncepershiftbycontrolroomoperationpersonnelandburnedoutlampsreplaced.Therearetwoindicatinglampsperwindow.Extinguishmentofonelampreduceslightoutputby50%.FloridaPowerRLightCompanycontendsthattheperiodictestingofannunciatorsdoesprovidethecontrolroomoperatorwithadequateopportunitytoidentifyanextinguishedlamp.Inaddition,FloridaPower4LightCompanycontendsthatareductioninlightoutputof50%iseasilyidentified.FloridaPower4LightCompanyintendsnoactiononthisitem.170

~Findin:(Section6.3,FileNo.41)(HEDNo.6.3.4.2.b(1,2,3,4))Annunciatorresponsecontrolshavesamedesignforallresponses-roundpushbuttons(silence,acknowledge,test).~Resonse:(Seotion6.3,FileNo.41)Thesubjectpushbuttonsareclearlylabelled,consistentlylocatedandarranged.Therearenoothercontrolstationsrequiringthesamesequenceoftaskswhichwouldconfusethecontrolroomoperator.FloridaPower4LightCompanycontendsthatthereislittletonooperatorerrorassociatedwiththeiruse.Intheeventofanoperatorerrortherearenoadverseconditionswhichwouldarise.FloridaPower8cLightCompanyintendsnoactiononthisitem.~F(odin:(Seotion6.3,FileNo.44)(HEDNo.6.3.4.2.c)Becauseofthedesignoftheannunciatorcontrol,operatorsmaydefeatthem.~Resonse:(Section6.3,FileNo.44)Theannunciatorsystemisprovidedwithanautomatic3secondauditorysilencefeature.Thepurposeoftheautomaticsilencefeaturewastohelpminimizecontrolroomnoiseduringnormalstartupandplanttransientconditionswhenoperatorsareinvolvedintasksandnotabletomanuallysilenceeachandeveryalarmcomingin.Thisfeatureallowsthecontrolroomoperatortoscantheannunciatorpanelswhentheauditorysignalsoundstodeterminewhetheranimmediateresponsetothesubjectalarmisrequired.FloridaPowerRLightCompanybelievestheexistingsystemdesignandadministrativecontrolsprecludeunauthorizeddefeatingoftheannunciatorauditorycontrolandintendsnoactiononthisitem.171 0

~Find(6:(Section6.4,FileNo.l)(HEDNo.6.4.1.1.a(2))ThecontrolsontheReactorProtectionSystem(NuclearPowerCalibrate,(DeltaPowerCalibrateandTemperatureColdCalibrate)requirefineadjustmentbutaresurroundedbyplaticguardswhichmakestheiractivationdifficult.~Resonse:(Section6.4,FileNo.l)Thereisnoerrorassessmentassociatedwiththeabovefinding.Thesubjectcontrolsareusedunderproceduralcontrolforcalibrationoftheassociatedequipment.Theinstalledguardsaretopreventinadvertentactivationofthesubjectcontrols.FloridaPowerandLightCompanybelievesthattheinstalledguardsarenecessaryanddoesnotposeanyoperationalproblems.FloridaPowerandLightCompanyintendsnoactionontheabovefinding.~F)odin:(Section6.4,FileNo.2)(HEDNo.6.4.1.1.b(1))RotarycontrolforflowsetpointselectorontheReactorProtectionSystemhasfivepossiblepositions.Accordingtoplantprocedures,plantmustalwaysbeoperatedinthefourpumpmode.Controlneedstobeguardedtoensurethatitcannotbemoved.~Resonse:(Seotion6.4,FileNo.2)Thesubjectrotaryisafourpositionswitchwithpositivedetentpositions.Inadvertentoperationofthisswitchwouldcausethereactortotripduetoreducingthereactorcoolanthighflowsetpoints.Inadvertentactivationofthesubjectswitchwouldnotcausethereactortobeoperatedinanunsafemanner.FloridaPowerandLightCompanyintendsnoactiononthisitem.172

~Findin:(Section6.4,FileNo.3,Section6.5,FileNo.9)(HEDNo.6.4.1.1.b(1))There'isasparerotarycontrolandindicatorlightlocatedonthehotshutdownpanelwhichislabeledspare.Thereshouldbeagoodreasontorequireanycontrolonthisboard.~Resonse:(Section6.4,FileNo.3,Section6.5,FileNo.9)Thesubjectpanelwasorderedwithinstalledsparecomponents.Thepanelwasqualifiedinthismannertoallowforfutureadditiontothesubjectpanel.Theinstalledsparerotarycontrolswitchisclearlylabeledandposesnooperationalproblemtothecontrolroomoperator.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.4,FileNo.19)(HEDNo.6.4.1.2)Thecolorpushbuttonsontheradiationmonitoringpanelareneitherseparatedby1/2inchnorguarded,whichcouldcauseaninadvertentactivationofanadjacentcontrol.~Resonse:(Section6.4,FileNo.19)Thesubjectpushbuttonsareacknowledgepushbuttonsforhigh(alert),high-highandfaileddetector.Ainadvertentactivationofanadjacentpushbuttonwouldnotcauseanycontrolfunction.Thesubjectpushbuttonshaveadequatesurfacearea,areclearlylabeledandprovidenopossiblesourceofoperatorerror.FloridaPowerandLightCompanyintendsnoactiononthisitem.173

~Find(0:(Seotion6.4,FileNo.20)(HEDNo.6.4.1.2.c(1))Thecontrolforchannelpower/powerrangerecorderselectoriscoveredwithanon-hingeddustcover.Itmayinterferewiththeoperationoftheprotectedcontrolswithinarequiredtimeperiod.~Resonse:(Section6.4,FileNo.20)Thenon-hingeddustcoverwasadustcover.Thesubjectcoverwasprovidedtokeepthesubjectrecorderfreeofdebrisduringperiodswhennotinuse.ThesubjectrecorderwasremovedaspartofthereworktoRTGB104andisnolongerinstalledinthecontrolroom.FloridaPowerandLightCompanyconsidersthisitemclosed.~Findin:(Seotion6.4,Files21,22,23,24end25)(HEDNo.6.4.1.2.e)SILooplAl,1A2,1B1,1B2Leakage(106)Shutdowncoolingreturnflow(106)RCpumpsealcoolersheatexchangerisolationvalves(1A1,1A2,1B1,1B2)(103)4)Flashtanklevel(105)5)Boricacidflow(105)6)Liquidwasteflow(105)7)Letdownlevel(105)8)Letdowntemperature(105)9)Letdownpressure(105)10)Pressureheaterproportionalcontrollerschannelxandy(103)11)Pressurizerlevelcontrollerchannelxandy(103)12)PressurizerspraycontrollerPCV-1100(103)1)2)3)~Resonse:(Section6.4,Files21,22,23,24end25)Theabovefindingshaveextremelylowerrorassessmentsassociatedwiththem.Thesubjectcontrollersallwouldrequireadeliberateholdingandturningof'thesubjectcontroltocauseachangeinrotaryposition.FloridaPowerandLightCompanybelievesthesubjectrotarycontroldesigndoesprovidesufficientprotectionagainstinadvertentactuationandintendsnoactionontheabovefindings.ThefollowingFisher-Portercontrolstationmanualcontrolrotaryofferslittleresistancetomovementandextendsoutaenoughtoprecludeaccidentalstrikingoractuation:174

~Findin:(Section6.4,FileNo.29)(HEDNo.6.4,2.1)RotaryswitchesforchargingvalvesISE-02-1,ISE-02-2,letdownstopcontainmentisolationvalveandletdowncontainmentisolationvalvedonotconformtoopen-right/close-leftconvention.e.g.,Reset-left/close-middle/open-rightClose-left/open-middle/reset-right~Resonse:(Seotion6.4,FileNo.29)Thesubjectrotarycontrolswitchesareclearlylabeledandoperatedunderadministrativecontrols.Theswitchesareconfiguredinordertosupportpropersystemcontroloperation.FloridaPowerandLightCompanycontendsthatthesubjectvalvecontrolrotaryswitchesareproperlydesigned,labeledandproperproceduralcontroldoexisttosupporttheiruseandintendsnofurtheractiononthisitem.Finding(Section6.4,FileNo.36)(HEDNo.6.4.2.2.b)Coloredpushbuttonsarenotconsistentlylocated.~Resonse:(Seotion6.4,FileNo.36)Thecolorcodedpushbuttonsontheradiation.montoringpanelfortheVictoreenequipmentisconsistentlycolorcoded,clearlylabeledandconsistentlylocated.FloridaPowerandLightCompanyintendsnoactiononthisitem.175

~Findin:(Section6.4,FileNo.42)(HEDNo.6.4.3.1.c)Coloredpushbuttonsdonothaveconcaveorfrictionalizedsurfacestoavoidslippage.(reset-fail,alert,high)~Resonse:(Section6.4,FileNo.42)Thecoloredpushbuttons(reset-fail,alert,high)associatedwiththeradiationmonitoringpanelareofsufficientsizei.e.,approximately1/4inch,makingaccidentialslippageoftheoperatorsfingerahighlyunlikelysituation.Intheeventthatinadvertentactuationofanadjacentpushbuttondidoccur,nocontrolfunctionoroperationalerrorwouldoccur.FloridaPowerandLightCompanybelievesthesubjectpushbuttonsdesignisadequateandintendsnoactiononthisitem.~Findin::(Section6.4,FileNo.44)(HEDNo.6.4.3.3.b(3))ThelegendsontheDEHturbinecontrolvalvetestpanelhavelowletter/backgroundcontrast.Itisdifficulttoreadwithoutinternalillumination.Letterheightonpushbuttons/lightsistoosmall.~Resonse:(Section6.4,FileNo.44)Thesubjectletteringisblackengravedcharactersonawhitebackgroundwhichisthemostdesirableletter/backgroundcontrastpossible.Thesubjectletteringsizeislimitedtothecomponentdescriptionandphysicalsizeofthepushbutton/legendlight.Thesubjectcontrolsareusedduringprocedurallycontrolledsurveillancetestsanddonotposeanysignificantoperatorerrorpotential.FloridaPowerandLightCompanyintendsnoactiononthisitem.176

~Findin:(Section6.4,FileNo.46)(HEDNo.6.4.3.3.c(3))Anyonetrying.tochangethebulbsassociatedwiththeElectro-hydrauliccontrolpanelmaybesubjecttoshock.~Resonse:(Section6.4,FileNo.46)Thesubjectlampsareremovedwiththeassociatedtileorlegend.Thesubjectlegendscanberemovedbyhandwithoutanypotentialshockhazards.Workrequiringremovalofequipmentformaintenanceis~performedbytheInstrumentationandControlDepartment.PloridaPowerandLightCompanyintendsnoactiononthisitem.~Pindin:(Seotion6.4,FileNo.50)(HEDNo.6.4.3.3.e(5))Thereactorprotectionsystemmatrixrelayholdpushbuttonsaredifficulttodepressfortheperiodoftimerequiredtoperformthesystemtest.Controlresistanceistohighforactivationbeyondafewseconds.~Resonse:(Seotion6.4,PileNo.50)Thesubjectmatrixrelayholdpushbuttonsaremomentarycontactdevices.Theyareonlyintendedtobedepressedforasecondortwowhileperformingthesubjectsurveillancetest.Thesubjectcontroldevicesareproperlydesignedfortheirintendedfunctionandnooperatorcontrolerrorsareassociatedwiththeirusesincetheiroperationandfunctionareclearlydescribedinthesubjecttestprocedure.177 0

~Findin:(Section6.4,FileNo.74and76)(HEDNo.6.4.4.5.6(1))Rotarycontrolsformotoroperatedisolationvalvesarespringreturntocenterandhavenopositiveindicationofactivationbywayofcontrolposition.Onlyindicationorfeedbackisthroughindicatorlights.~Resonse:(Section6.4,PileNo.74and75)Thesubjectvalvesaremotoroperatedvalvesandareprovidedwithmechanicallimitswitchesateachposition(fullclosedandfullopened).Thevalvesarenormallyintheopenedpositionwhichisindicatedbyaredindicatinglamp.Nhentheoperatoractivatesthesubjectvalvecloserelaybothindicatinglightsareilluminatedasthevalvemovesoffit'sfullopenpositionandthegreenlightremainsilluminatedandtheredlightisextinguishedwhenthevalvereachesit'sfullclosedposition.FloridaPowerandLightCompanybelievesthedesignandoperationofthesubjectmotoroperatedvalvecontrolcircuitsiscorrectandintendsnoactiononthisitem.~Pindin:(Section6.4,FileNo.79)(HEDNo.6.4.4.5.d(1))SprayvalvePCV-1100Phasalackofcontrolactionfeedback.Therearetwosetsofindicatorlightswhichareassociatedwiththerotarycontrol.Bothindicatorlightsrespondtoonecontrolpositionbutdonotrespondtothecontrolpositiontheyareassociatedwith.~Resonse:(Section6.4,FileNo.79)Thesubjectindicatorlightsreflectvalvepositioni.e.,redopen,greenclosed,theydonotreflectsprayvalvecontrolmodewhichisdisplayedbythedetentedswitchposition.Thesubjectsystemiscorrectlylabeledandprovidesadequatecontrolandtacticalfeedbacktothecontrolroomoperator.FloridaPowerandLightCompanybelievesthisfindingisinvalidandintendsnoaction.178

~Findin:(Section6.4,FileNo.81,82and83)Thereisparallaxfrompointerbecausepointerisnotcloseenoughtoscaleonrotarycontrolselectorswitches.~Resonse:(Section6.4,FileNo.81,82and83)Theerrorassessmentassociatedwiththeabovefindingsisextremelylowtonon-existent.Allrotarycontrolsareprovidedwithtacticalfeedback.Theyeitherhavepositionindicatinglamps,processdisplays,detentpositionswhicharelabeledalongwithinstalledpointers,positionstatusfiags,etc.FloridaPowerandLightCompanybelievesthatthesubjectrotariesidentified:1)2)3)4)5)DynamictestpanelThotrotaryBoronloadcontrolvalve-2525(RTGB105)Reactormakeupmodeselector(RTGB105)Reactorregulatorysystem(RTGB104)Reactorcoolanttemperatureselector(RTGB104)areproperlydesignedandprovidenopotentialforoperatorerror.FloridaPowerandLightCompanyintendsnoactionontheseitems.~Find(a:(Section6.4,FileNo.85)(HEDNo.6.4.4.5.e(3))Rotarycontrolsaree75inchesindiameterwhichislessthantheoneinchrecommendedminimum.~Resonse:(Section6.4,FileNo.85)Theerrorassociatedwiththesubjectrotaryknobdiameterisextremelylow.Thesubjectcontrolknobsprovideadequategrippingsurfaceforoperatorstoperformthedesiredtasks.ThecurrentknobdiametersdonotimpareoperatorperformanceandFloridaPowerandLightCompanyintendsnoactiononthisitem.179 00

~Findin:(Section6.5,FileNo.2)(HEDNo.6.5.1.1.b)Informationneededtomeettaskrequirementswhileadjustingthepercentpositionbaseadjusterisnotprovided.Duringturbinegeneratorstartuptheoperatorisrequiredtoraisebaseadjustto15KVwithdisplayfeedback.Parameterprovidedtotheoperatorforfeedbackispercentpositionbaseadjuster(0-100percent).Thereisnolackordisplayfeedbackinunitsofmeasurementrequired(KV).~Resonse:(Section6.5,FileNo.2)AlternatesourcesofinformationareprovidedtotheoperatortothetaskofturbinegeneratorstartupwhichallowforKVfeedback.Thepercentindicatorisintendedasasourceofbackupverificationduringstartup.FloridaPowerRLightCompanyintendsnofurtheractiononthisitem.~F(odin:(Section6.5,FileNo.7)(HEDNo.6.5.1.l.b,f)ThereisnoredundantindicationforcoldlegtemperatureTl-115orHIC4100sprayvalvecontrolandpressurizerpressureindication.~Resonse:(Section6.5,FileNo.7)Thereareadequatesourcesofinformationavailabletothecontrolroomoperatortoverifyplantperformanceandprocessinformation.Thereareanumberofpressurizerpressureandpressurizertemperatureindicatorsandrecordersaswellashotleg,coldleg,Taverage,Treferenceindicatorsandrecorders.Florida-PowerandLightCompanybelievestheplantdesignanddisplaysavailabletotheoperatoraresufficienttoallowforeffectiveandpromptperformanceoftheirrequiredtasks.FloridaPowerandLightCompanyintendsnoactiononthisitem.180

~Findin:(Section6.5,FileNo.8)ContainmentpressurerecorderlocatedontheCRAGpanel,containmentradiationrecorderchannel58and59locatedontheradiationmonitoringpanelhavespareunusedpens.Trendrecordersaredisplayingunnecessaryinformation.~Resonse:(Section6.5,FileNo.8)Thesubjectrecordershavesparechannelsandareclearlylabeledasspare.FloridaPowerandLightCompanybelievesthereislittletonopotentialforoperatorerrorsinceinallcaseshighreadingsareofmajorconcernandrequireoperatoractionandloworzeroreadingsrequirenooperatoraction.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.4,FileNo.3,Section6.5,FileNo;9)(HEDNo.6.4.1.1.b(1))Thereisasparerotarycontrolandindicatorlightlocatedonthehotshutdownpanelwhichislabeledspare.Thereshouldbeagoodreasontorequireanycontrolonthisboard.~Resonse:(Section6.4,FileNo.3,Seotion6.5,FileNo.9)Thesubjectpanelwasorderedwithinstalledsparecomponents.Thepanelwasqualifiedinthismannertoallowforfutureadditiontothesubjectpanel.Theinstalledsparerotarycontrolswitchisclearlylabeledandposesnooperationalproblemtothecontrolroomoperator.FloridaPowerandLightCompanyintendsnoactiononthisitem.181

~Findin:(Seotion6.5,FileNo.11)Thecoremimicandreactorregulatingsystemhaveunnecessaryorunmeaningfullegendlights.Coremimicusesfivecolorstoindicatethatrodsareinorout(onlytwoareneeded).~Resonse:(Seotion6.5,FileNo.11)Thecoremimicisonaidtotheoperatorandprovideshimwithanumberofrodstatusinformationsuchasnormalinsertionlimit,lowinsertionlimit,rodatupperlimit,rodoffupperlimit,rodmoving.Thepresentedinformationinthecoremimicandrodcontroldisplayiscorrectandusedbyoperationpersonnel.Thereactorregulatingsystemisanintegralpartofthereactorcontrolandeventhoughtheplantisnotoperatedinaloadfollowmodethesystemisstillfunctional.Thesubjectsystemsarecorrectandoperational,FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Seotion6.5,FileNo.13)(HEDNo.6.5.l.l.c)Extraneousinformationispresentedonlegendlightsassociatedwiththeboronconcentrationrecorder.Thefourlightsdisplayarangeofnumbers(0-550,500-1050,1000-1550,1500-2050).Thebottomnumberisaddedtothereadingtakenontheassociatedtrendrecorder.Thetopnumberisnotusedatall.~Resonse:(Section6.5,FileNo.13)(HEDNo.6.5.1.1.c)Thesubjectilluminatedpushbuttonsprovidethecontrolroomoperatorwiththeselectedrecorderrange.Therecorderandrangeselectorpushbuttonsareproperlylabeledandprovidetheoperatorwiththecorrectinformation.FloridaPowerandLightCompanybelievesthesubjectfindingisinvalidandintendsnoaction.182

~Findin:(Seotion6.5,FileNo.17)(HEDNo.6.5.1.1.e)Valvecontrolswitchesassociatedwiththepressurereliefblockvalvesdonothavevalvepositionstatus.Indicatinglightsdisplaydemandsignalnotvalveposition.~Resonse:(Section6.5,FileNo.17)Thepressurizerreliefblockvalvesdodisplaypositivevalveposition.Thevalvepositionstatusisindicatedbythesubjectindicatorlightswhichreceivethevalvestatusfromassociatedvalvelimitswitches.Thepressurizerreliefvalvesareprovidedwithacousticmonitorsanddischargetemperatureindicatorstoprovidetheoperatorwithvalvestatus.Thesubjectsystemiscorrectlydesignedanddoesprovidethecontrolroomoperatorwiththenecessaryinformationtodeterminevalvestatus.FloridaPowerandLightCompanyintendsnoactiononthisitem.FindinK:(Seotion6.5,FileNo.19)(HEDNo.6.5.1.1.e)Indicatorlightsassociatedwiththereactorcoolantpumpoilliftpumprespondtocontrolswitchpositionnotpumpstatus.~Resond:(Seotion6.5,FileNo.19)Theoilliftpumpsassociatedwiththeirrespectivereactorcoolantpumpsareinterlockedwithdischargepressurepermissivesanddohaveanalogindicationofpressureandtemperaturelocateddirectlyabovethesubjectcontrols.FloridaPowerandLightCompanybelievesthattheprovideddisplaysandadministrativeproceduralcontrolsadequatelyidentifytheproperpre-requisitesforthesubjectequipmentoperationandintendsnoactiononthisitem.183

~Findin:(Section6.5,FileNo.20)(HEDNo.6.5.1.1.e(1))ThereactorregulatingsystemrotarycontrolselectorswitchselectschannelbutbothsetsofindicatorlightsremainiQuminatedregardlessofwhichchannelhasbeenselected.~Resonse:(Section6.5,FileNo.20)Thereactorregulatingsystemrotarycontrolselectorswitchisclearlylabeledaswellastheassociatedgroupofindicatinglights.Thesubjectlightsarearrangedintwoseparateverticalcolumnsdirectlyabovetherotarycontrol-switchwhichpointstothesetofdisplaylightsselected.Thecurrentarrangementprovidestheoperatorwithanimmediatestatusofselectedcontrolchannelaswellasthestatusofthebackupchannel.FloridaPowerandLightCompanybelievestheexistingconfigurationbestoptimizesthecontrolroomoperator'sperformanceandintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.25,26)(HEDNo.6.5.1.l.f)Failureofinstrumentsisnotreadilyapparenttothecontrolroomoperator.~Resonse:(Section6.5,FileNo.25,26)Indicatorsarecalibratedfor0-tofullscale.Onalossofpower,indicatorsreadbelowtheirzerocalibrationpoint.Controlroomoperatorsusemeters,indicatinglights,supervisoryannunciatoralarmsaswellasotherplantequipmentsuchasthedigitaldataprocesssystemtomonitorequipmentstatus.Ingeneral,wheredesirable,indicatorswillberangecodedtoindicatenormalandoffnormaloperatingrangestoassistoperatorsinidentifyingoffnormalconditions.Controlroomoperatorstakehourlylogreadingsandaretrainedtoidentifyplantproblemssuchasequipmentfailure.FloridaPowerandLightCompanyaidsandtrainingdoesprovidetheoperatorswiththenecessarytoolstoquicklyidentifyequipmentfailureandintendsnofurtheractiononthisitem.184

~Find(0:(Section6.5,FileNo.28,29)(HEDNo.6.5.1.1.f)Themetrascope(CRTofcontrolrodposition)flasheswhenaroddropsorthereisasignalfailure.Thereisnowaytostoptheflashingtodeterminewhetherthereisasignalfailureorarodhasdropped.~Resonse:(Section6.5,FileNo.28,29)Thecoremimicdisplay,supervisoryannunciatorsystem,andreactivityinstrumentationprovidethecontrolroomoperatorwithsufficientinformationtodeterminethecauseofthemetrascopedisplayflashing.Ifarodhasdropped,itcanbeeasilyidentifiedandthenecessarycorrectiveactiontaken.FloridaPowerandLightCompanybelievesthereisadequateindicationprovidedtoidentifythefailuremodeandintendsnoactionontheseitems.~Find(0:(Section6.5,FileNo.30)(HEDNo.6.5.1.l.f)Whenthesensortoatrendrecorderfails,therecordereithergoestothehighorlowendofthescale;however,failuretothenullpointorhighestvaluecouldbemisinterpretedbytheoperator,particularlywhenthenormalscalerangeisatthetoporbottomofthescale.~Resonse:(Section6.5,FileNo.30)Thetrendrecordersinthecontrolroomprovidetheoperatorwithhistoricaltrendsofvariousparameters.Failureoftheinputtothetrendrecorderwouldalsodisrupttheanalogindicator,supervisoryannunciatorsystemandplantcomputerinvariousinstances.Lossofpowertotherecorderwouldalsobeobvioussincethepaperwouldnotbeadvancingandthepenlyingstillinonareaofthechartwouldstarttocauselargeblotchesduetothecapillaryactionbetweenthechartpaperandink.FloridaPowerandLightCompanybelievesthatthereisadequateinformationavailabletothecontrolroomoperatorssuchasanalogindicators,supervisoryannunciatoralarms,plantprocesscomputer,etce2toallowthecontrolroomoperatortoquicklyidentifyafailureassociatedwithatrendrecorder.Inaddition,trendrecordersaretimemarkedanddatestampedbycontrolroomoperatorsoncepertwenty-fourhours.FloridaPowerandLightCompanyintendsnofurtheractiononthisitem.185

~Findin:(Section6.5,FileNo.31)(HEDNo.6.5.1.1.f)AllGeneralElectrcc'rcua)eter"a'otheoweg,aduat~~ark.Itisneverclear,therefore,whetherapumpa-pmeter'sreadi"rzerobecausethepumphasfailedorbecausethemeterhasfailed.Allmetersshouldfailoffscaleorinsomeotherwaywhichgivesaclearindicationthatthemeterhasfailed.~Resonse:(Section6.5,FileNo.31)Normaloperatingandoffnormalrangecodingwillbeappliedtovariousindicatorsthroughouttheunitscontrolroomaspartoftherangecodingprogram.Thiswillallowoperatorstoquicklyidentifythoseindicatorparameterswhichareoffnormalandrequirefurtherinvestigation.FloridaPowerandLightCompanybelievesthecurrentcontrolroomdesignO.e.,primaryandsecondaryinformationdisplayedforoperatorused)andnormalwatchdutiesprovidethecontrolroomoperatorwiththenecessaryinformationtodeterminedisplayfailureoranassociatedprocessfailure.FloridaPowerandLightCompanybelievestheexistingequipmentandadministrativecontrolsareadequateandintendsnofurtheractiononthisitem.186 0

~F)odin:(Seotion6.5;FileNo.32)(HEDNo.6.5.1.2.a)Themetersforsafetyinjectionpressure,caustictanklevel(LIS-OV-7D)andglandsealsteamcondenservacuumusesinappropriateunitsofmeasurement.~Resonse:(Section6.5,FileNo.32)AfieldinspectionofthesubjectmeterswasperformedbyFloridaPowerandLightCompanypersonnelanditwasdeterminedthatthescalerangesandunitsofmeasurementwerecorrectfortheintendeduse.1)Safetyinjectionpressuredisplaysarepresentedinpoundspersquareinch.2)Caustictanklevelisininchesofwaterandthesubjectindicatorwillberangecoded.3)Glandsealsteamcondenservacuumispresentedinincheswatercolumnvacuumandit'snormaloperatingrangewillberangecodedaspartofthecodingprogram.FloridaPowerandLightCompanybelievesthescalesandrangecodingprovidethecontrolroomoperatorwithadequateinformationtoperformthedesiredtasksandintendsnofurtheractiononthisitem.~Findin:(Seotion6.5,FileNo.33)(HEDNo.6.5.1.2.a)Thecomponentcoolingwaterpumpampmeterscalesgofrom0to150amps.Themaximumreadingthatwilleverappearonthescaleis90amps.~Resonse:(Section6.5,FileNo.33)Thesubjectscalerangeiscorrect.Goodengineeringpracticeistoprovideindicatorssuchthatnormaloperatingvaluesfallwithinapproximately2/3theindicatorscalibratedrange.Thisinsuresgoodinstrumentaccuracyandeaseofreadability.FloridaPowerandLightCompanyintendsnoactiononthisitem.187

~Findin:(Section6.5,FileNo.35)(HEDNo.6.5.1.2.b)Thecontainmentsumplevelmetersmustbeusedtogetherbecausenarrowrangeisbelowthescaleonthewiderange.Theinter-relationshipisnotmarkedandscalesarenotcompatible.Operatorsmust,thereforeadd6tothewiderangemetertogetactuallevel.~Resonse:(Section6.5,FileNo.35)Thesubjectmetersarenotnarrowrangeandwiderangeindicatorsandnomentalconversionshavetobemadetousethesubjectindicators.Therearefourleveltransmitterslocatedinthecontainmentsump(2)lowrange(-7feetto0feet)and(2)highrange(0feetto25feet).Theyaredirectreading,properlylabeledanddohaveascaleoverlaptoassistcontrolroomoperatorsinclearlyassessingcontainmentsumplevel.FloridaPowerandLightCompanybelievesthesubjectdisplaysarecorrectandintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.37)(HEDNo.6.5.1.2.b)Thefollowingcountersmustbemultipliedby2or20toarriveatthedirectlyusablefigure.1)GeneratorMWhX22)6.9kvbus1Aland1B1X203)4.16kvbuslA2and1B2X204)DieselGenerator1Aand1BX2~Resonse:(Section6.5,FileNo.37)Thesubjectcounterslistedabovearedirectreadingandrequirenoconversion.TheabovefindingisinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.188

~Findin:(Seation6.5,FileNo.39)Thepowerratiotrendrecordernumbersarenormallyusedforcomparisonsotheydonotneedtobedecimals.~Resonse:(Seotian6.5,FileNo.39)Thesubjectdisplayisdirectreadinganddisplaysvalveswhicharecorrectlyidentifiedandclearlylabeled.FloridaPowerandLightCompanybelievesthesubjectscalerangesarecorrectandtherearenotemporalerrorsassociatedwithusingthesubjectdisplay.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Find(a:(Seation6.5,FileNa.42)(HEDNo.6.5.1.2.d)Thesafetyinjectiontanklevel,safetyinjectiontankpressureandsteamgeneratorpressuremeasurementchannelmetersarenotdesignedsotheycanbereadtothedegreeofaccuracyrequiredbypersonnel.~Resonse:(Seation6.5,FileNo.42)Thesafetyinjectiontanklevelandpressureindicatorshavehighandlowsetpointmarkingsonthescale.Thesafetyinjectiontankparametersaremaintainedwithinthisoperatingband.Steamgeneratorpressureisdependentonsteamflowandturbinegeneratoroutput.Thesteamgeneratordisplaysidentifiedintheabovefindingprovidethecontrolroomoperatorwiththesafetymeasurementchannelreadingsandarenotusedforcontrolfunctionbythecontrolroomoperatorbutratherstatus.FloridaPowerandLightCompanybelievesthesubjectdisplayrangesandaccuraciesarecorrectandintendnoactiononthisitem.189

~Findin:(Section6.5,FileNo.43)(HEDNo.6.5.1.2.d(1))Thecontainmentpressuremetersandrecordershavearangeof0-175psig.Containmentisonlydesignedtowithstand50psig.Therefore,themajorityofthescale,from50to175psigisunnecessary.~Resonse:(Section6.5,FileNo.43)AsaresultoftheThreeMQeIslandaccidentitwasdeterminedthatspecificparameterrangesoninstrumentsneededtobeincreasedtobettermonitortheseparametersintheeventofanaccident.NuclearRegulatoryGuide1.97containsalistofthesubjectparametersandtheirexpectedranges.FloridaPowerandLightCompanycontendsthesubjectrangesarecorrectandintendsnoactiononthisitem.Finding(Section6.5,FileNo.47)(HEDNo.6.5.1.2.d(1))Themetersforcoldlegtemperatures(TIC-1111yand1121y)donotspantheexpectedrangeofoperationalparameters.Existingrangeprovidedis520-610degreesF.~Resonse:(Section6.5,FileNo.47)Thesubjectindicators(TIC-llllyand112ly)arenarrowrangeindicatorsprovidedtogivethecontrolroomoperatoranaccuratereadingofcoldlegtemperaturewhentheunitisatpower.ThesubjectdisplayrangeiscorrectforitsintendeduseandFloridaPowerandLightCompanyintendsnoactiononthisitem.190

~F(odin:(Section6.5,FileNo.51)Steamflow/feedflowdeviationmeterslocatedonthebackofRTGB102and103isexpandedbymultiplyingby200,000.Operatorsshouldnotberequiredtomakementalcomputationsinordertoreadadisplay.~Resonse:(Seotion6.5,FileNo.51)Thesubjectdisplayisnotrequiredtobeusedbycontrolroomoperators.Thedisplayisusedbyplantmaintenanceandstaffpersonnel.Itprovidesthedifferenceinfeedflowandsteamflow.ItisadirectreadinginstrumentandFloridaPowerandLightCompanyintendsnoactiononthisitem.Finding(Seotion6.5,FileNo.54)Theblowdownandcondensateconductivityrecorderscalerangeismultipliedbyotherthanafactorof10.~Resonse:(Section6.5,FileNo.54)Thescalemultiplyersare.1,.2and.02.Therecorderprovidesatrendofcondensateandfeedwaterconductivityforplanthistoricalpurposes.Intheeventanintrusionofcirculatingwaterdidoccuroperationsstaffcouldrefertothesubjectrecorderandidentifyapproximatelywhereinthecondensate/feedwatertrainitoccurred.Thecontrolroomoperatordoesnotusethesubjectrecorderforanycontroloperationsandinadditionlocalsamplesaretakenbychemistryandtheresultsreportedtothecontrolroomoperator.FloridaPowerandLightCompanydoesnotbelievethereareanycontrol,interpretationortemporalerrorsassociatedwithusingthesubjectdisplaysinceitisnotrequiredforanytimebasedoperationalprocedureortask.FloridaPowerandLightCompanyintendsnoactiononthisitem.191 00

~Findin:(Section6.5,FileNo.56)(HEDNo.6.5.1.3.b(2))Numeralsizeonscalesvaryfromonemetertothenext.Letternumeralheightshouldbeidenticalforalllabelswithinthesamehierarchicallevel.~Resonse:(Section6.5,FileNo.56)Numeralandlettersizeisthesameonidenticalmeters,i.e.,samemodel/samesizescale.Meterfacesareconsistentthroughoutthecontrolroomforspecificmanufacturermodelandmetersize.FloridaPowerandLightCompanybelievesthatthesubjectletteringandnumeralssizesonindicatorscalesiscorrectforthescalesizeandavailablespace.FloridaPowerandLightCompanyintendsnoactiononthisitem.Finding(Section6.5,FileNo.59)(HEDNo.6.5.1.3.d(3))ContinuousrotariesontheRPSaredifficulttouse.Thereisanopeninginthecontrolknobwherethenumeralisdisplayed.Theopeningfillsupwithdustmakingthenumeraldifficulttoread.Thenumbersontheknobareverysmallanddifficulttoreadyanyway.~Resonse:(Section6.5,FileNo.59)Thesubjectrotariesarepotentiometerswhichareusedbyinstrumentationandcontrolmaintenancepersonnelunderproceduralcontrolwhilecalibratingtheassociatedequipment.Thesepotentiometersareusedinconjunctionwithcalibratedtestequipmentandreadingsarerecordedfromthetestequipmentnotthesubjectpotentiometer.Thesubjectrotariesarenotusedbycontrolroomoperationalpersonnel.FloridaPowerandLightCompanybelievesthesubjectequipmentdesigniscorrectfortheintendedapplicationandintendsnoactiononthisitem.192

~F(ndin:(Section6.5,FileNo.66)(HEDNo.6.5.1.4.b)Manufacturer'sname(SIGMA)appearsondisplayfacedistractingfrominstrumentreadingandrelevantscaleinformation.Displayhasextraneousandunnecessaryinformationonit.~Resonse:(Section6.5,FileNo.66)Theabovefindinghaslittletonoerrorassessmentassociatedwithitbecausethesubjectindicatorshavecleardistinctivescaleswhichareconsistantlyarrangedandclearlylabeled.Themanufacturer'snamecannotbemisinterpretedasanumber,doesnotconflictwithscalegraduationsnorscalenumerals,i.e.,labeling.FloridaPowerandLightCompanybelievesthereisnooperatorerrorassociatedwiththeabovefindingandintendsnoactiononthisitem.~indinS:(Section6.5,FileNo.67)(HEDNo.6.5.1.4.b)Meterscaleshavethickblackmarkswhichextendthemajormarkstothescalenumerals.Thesemarksgivethemisleadingappearanceofminus(-)signsinfrontofnumerals.~Resonse:(Section6.5,FileNo.67)AfieldinspectionwasmadebyFloridaPowerandLightpersonneltoreviewtheabovefinding.Theresultofthereviewwasthateventhoughthickmetergraduationmarksdidexistonindicatorscalestheywereconsistantlyandclearlyappliedthusnotprovidinganypossibleoperatorerror.Thesubjectdisplayscanbeeasilyreadandnomisinterpretationofthesubjectmarksareexpectedsincenonegativevaluesarepresentedonthesubjectdisplays.FloridaPowerandLightCompanyintendsnoactiononthisitem.193

~F(ndin:(Seotion6.5,FileNo.72)(HEDNo.6.5.1.5)Theformatofmeterscalesdoesnotconformtotherecommendedformatwhichcallsforeasilydistinguishableminor,intermediateandmajorgraduationmarks.~Resonse:(Seotion6.5,FileNo.72)Thesubjectindicatorsareclearlylabeledandmajorgraduationsdohavetheirassociatedvalvesindicatedinproperandconsistantformat.Rangecodingisbeingappliedtoindicatorswhereoperatorperformanceisexpectedtobeimprovedbytheavailabilityofaquickstatusreferenceoperatingrange.FloridaPowerandLightCompanybelievestheexistingscaleformatsinconjunctionwiththeappliedoperatingbandsprovidesthecontrolroomoperatorwiththenecessaryinformationtoquicklyidentifyandrespondtothesituationathandandintendsnofurtheractiononthisitem.~Findin:(Section6.5,FileNo.74)(HEDNo.6.5.1.5.a(l))Therearemorethanninemajor,minorandintermediatemarksbetweennumberedscalepoints.~Resonse:(Seotion6.5,FileNo.74)Thesubjectindicatorscalesareprocessspecificandduetotherequiredaccuracy,spacelimitations,andneedforsimple,easilyreadablescales,therearemorethanninegraduations(major,intermediateandminor)betweennumberedscalemarkings.FloridaPowerandLightCompanybelievesthattheexistingmanor/minormarkconventionsandimplementationofanoperatingrangecodingprogramonindicatorscalesisadequateanddoesnotposeanoperating/interpretationproblemtocontrolroomoperators.FloridaPowerandLightCompanyintendsnofurtheractiononthisitem.194

~F(ndin:(Section6.5,FileNo.75)(HEDNo.6.5.1.5.a(3))Circularmetersonthereactorprotectionsystemdonothaveintermediatemarksalthoughtheydohavenineminormarksbetweennumberedpoints.~Resonse:(Section6.5,FileNo.75)Thesubjectdisplaysshowdisintegrationsperminuteandpercentpower.Theindicatorsareclearlylabeledandnumeralsareplacedatmajorgraduations.Theseindicatorsprovidesecondaryinformationandarenotusedforcontrolfunctionsbycontrolroomoperators.FloridaPowerandLightCompanybelievesthesubjectindicatorscalesarecorrectfortheintendeduseandintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.76)(HEDNo.6.5.1.5.b)Theheightofindexmarksontrendrecordersdoesnotcomplywithminimumrequirements,andtheyaretoosmallanddifficulttodiscriminate.~Resonse:(Section6.5,FileNo.76)Trendrecordersprovideoperatorsandplantstaffwithhistoricalinformation.Trendrecorderpaperisscaledandclearlyindexed.Thesubjectrecorderscalelegendsareclearlylabeledandscalegraduationsareprovidedasanoperatoraid.FloridaPowerandLightCompanybelievesthesubjectrecordersandtheirscalesdonotposeanyinterpretationortemporalerrorpotentialforcontrolroompersonnelandintendsnoactiononthisitem.195

~Findin:(Section6.5,FileNo.78)(HEDNo.6.5.1.5.c)TheLPSI,HPSIandAUXHPSIvalveshavescaleindicatorswithunconventionalincrements(0,15,30,45...).Suchaprogressionofvalveindicationmaycauseexcessivetimeinreadingscales.~Resonse:(Section6.5,FileNo.78)Thesubjectindicatorsprovidethecontrolroomoperatorwithanindicationofvalvecontrolleroutputsignal.Thesubjectvalvesareautomaticallyoperatedandrequirenooperatoraction.Intheeventofoperatorintervention,controlofvalvepositionisdeterminedbytheassociatedheaderflowindicator,notvalveoutputsignal.Valveoutputsignalisprovidedtoassisttheoperatorindiagnosingpossiblesystemfailuremodes,notcontrolfunction.FloridaPowerandLightcompanybelievesthesubjectdisplaysarecorrectfortheirdesignfunctionandintendsnoactiononthisitem.196 0

~F(ndin:(Section6.5,FileNo.79)(HEDNo.6.5.1.5.c)Thefluxaxialoffsetandpowerrangeindicatorscalesdonotincreaseby1,2,or5.~Resonse:(Section6.5,FileNo.79)I;ttThesubjectindicatorscalesareprocessspecificandtheirincrementsareafunctionofaccuracyandrange.Thescalerangeandselectedgraduationsprovidethecontrolroomoperatorwiththenecessaryaccuracyandinformationformonitoringreactorpowerandfluxaxialoffset.Rangecodingofthesubjectscaleswouldnotimproveoperatorperformancesincetherearevariationsfordifferentoperatingconditions.FloridaPowerandLightCompanybelievesthattheexistingdisplays,associatedsupervisoryannunciatorsandadministrativecontrolsprovideadequateguidancewithregardtooperatinglimitsanduseofthesubjectdisplays.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.83)(HEDNo.6.5.1.5.d)TherecordersforprocessradiationmonitoronRTGB105,vibrationanddifferentialexpansiononRTGB101andpressurizerpressureonRTGB103havemulti-pointerscaleswithtwodifferentscaleranges.Scalesareincompatible,ifcomparisonisrequired.~Resense:(Section6.5,FileNo.83)Thesubjectrecorderscalesarestandalonescalesi.e.notusedforcomparison.Therecorderscalesarecorrectandproperlyrangedfortheirintendedapplicationandnooperatorinterpretationerrorsareexpected.FloridaPowerandLightCompanyintendsnoactiononthisitem.197

~Findin:(Section6.5,FileNo.85)TheCISmonitorandHVACPostLOCAmeterscalesareidenticalbutarenumbered1,10,102,103,104,105andothersarenumbered100,101,102,103,104,105.~Resonse:(Section6.5,FileNo.85)Thereislittletonodisplavinterpretationerrorassociatedwiththesubjectindicators.Theindicatorscalesaredirectreadingandareconsistenti.e.;alltheCISmonitordisplaysarethesameandalltheHVACPOSTLOCAdisplaysarethesame.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.86)(HEDNo.6.5.1.d)Thescalerangeontheblowdownandcondensateconductivityrecordershouldbethesameforsteamgenerator1Aandsteamgenerator1B.~Resonse:(Section6.5,FileNo.86)Thescalemultipliersare.1,.2and.02.Therecorderprovidesatrendofcondensateandfeedwaterconductivity.Thescale'srangesaregraduatedbyafactoroftenbetweenthetwosteamgeneratorssuchthatoperationpersonnelcanidentifyanyintrusioni.e.increaseinconductivityattheearliestpossibletimebydetectinganychangeintrendslope.FloridaPowerandLightCompanybelievesthesubjectrecorderrangesarecorrectfortheintendeddesignapplicationandintendsnoactiononthisitem.198

~F(odin:(Seotion6.5,FileNo.90)(HEDNo.6.5.1.5.f)Channelpowerindicatorshavemulti-seal~i~"tca'nrandhoudbovnd(.d.unleSStheVCanbeiuStifiedaSanOner5)tiOn~l.'ndpreCautinnAptakentoavoidoperatorconfusion.Thesescaleshaveonepointerwithtwinscales.~Resonse:(Seotion6.5,FileNo.99)Thisfindingposesnoproblemtotheoperator.Thesedualscaleswithsinglepointersareusedtomonitorsourcerangefluxlevelsandneutronpowerinpercent.Thesourcerangeautomaticallytransferstothepowerrangewhenapredeterminedlevelisreachedinthesourcerangescaleandviceversawhendecreasingpower.Legendlightsabovethemetersindicatewhichscaleisinuse.FloridaPowerandLightCompanybelievesthecurrentsystemiscorrectlydesignedforitsintendeduseandintendsnoactiononthisitem.~F(odin:(Section6.5,FileNo.91)(HEDNo.6.5.1.5.f)ThesteamgeneratorPandtotalcoreflowindicatorsonRTGB103usemulti-scaleandsinglepointerindicators.~Resonse:(Section6.5,FileNo.91)Thesubjectindicatorsscalesaremanuallyselectedbythecontrolroomoperatorandtheactivescaleisalsodisplayedbyabacklitlegendlight.FloridaPowerandLightCompanybelievesthesubjectdisplaysareclearlylabeledandidentifiedastowhichisselectedtoprecludeanyoperatorerror.FloridaPowerandLightCompanyintendsnoactiononthisitem.199

~Find(a:(Section6.5,FileNo.92)(HEDNo.6.5.1.5.f)Thetrendrecordersassociatedwithturbinevibration/differentialexpansion/casingexpansionandturbine-speed/valvepositionusemultiplescaleswithdifferentranges.Therecordersaredifficulttoreadandassociatetheappropriateinformationwithitsassociatedmeter.~Resonse:(Section6.5,FileNo.92)The.turbinesupervisoryrecorder(turbinevibration/differentialexpansion/casingexpansion)isprimarilyusedduringturbinestartupandshutdown.Pointsareclearlylabeledonthelegendplateandhaveassociatedsupervisoryannunciatoralarms.Theturbinespeed/valvepositionrecorderisalsousedduringplantstartupandtherecorderisclearlylabeled.Thereislittletonoerrorassessmentassociatedwiththeuseofthesubjectrecorderssincetheyaredirectreadingandclearlylabeled.FloridaPowerandLightCompanyintendsnoactiononthisite'm.~F(ndin:(Section6.5,FileNo.93,94,95and96)(HEDNo.6.5.1.6.C(1))Sigmametershavethreeindicatorlights,eachlighthasthreepossiblemeaningsi.e.provideindicationofpowertometers,highsetpointexceededandlowsetpointexceeded.~Resonse:(Section6.5,FileNo.93,94,95and96)OnthoseSigmaindicatorswhereprovided,thehighandlowsetpointindicatorlightsareintendedtobeusedbyinstrumentationandcontrolmaintenancepersonnelwhencalibratingtheindicatorsandarenotusedbycontrolroompersonnel.Equipmenthavinghighand/orlowrangesetpointsareannunciatedviathesupervisoryannunciatorsystemwhenaparameterreachesapredeterminedsetpoint.Theactivationoftheannunciatoralarmwindownotifiesthecontrolroomoperatorthatcorrectiveactionisrequired.Sigmaindicatorswithservodrivemetermovementsareprovidedwithpowerindicatorlightsanddoprovidethecontrolroomoperatorofmeterpowerfeedstatus.FloridaPowerandLightCompanybelievesthattheexistingsigmaindicatorsarenotconfusingtooperationpersonnelsincetheyaredirectreadinganalogdisplaysandintendsnoactiononthisitem.200

~Findin:(Section6.5,FileNo.9V)(HEDNo.6.5.1.6.C(1))PushbuttonsontheReactorProtectionSystempanelarecoloredamber.Theconventionalmeaningofamber'iscaution,alert.Thesepushbuttonsdonotfallinthisnarrowlydefinedmeaning.~Resonse:(Section6.5,FileNo.97)Thereisnopotentialforoperatorerrorassociatedwiththesubjectpushbuttons.Theidentifiedpushbuttonsareusedforequipmentcalibrationonthesubjectpanelunderproceduralcontrolandareclearlyandadequatelylabeled.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.99)(HEDNo.6.5.1.6.d)Theyellowindicatinglightsassociatedwiththedieselgeneratorcontrolandvoltageadjustrotariesdoesnotindicateapermissivebutratheranintermediateposition(i.e.speedbetweenfastandslowforY17and29).~Resonse:(Section6.5,FileNo.99)Thesubjectindicatinglights(yellow)doindicatepermissivei.e.voltageiscorrectforload.FloridaPowerandLightCompanyintendsnoactiononthisitem.201

~Findin:(Section6.5,FileNo.101)(HEDNo.6.5.1.6.d)Reactortripbreakerlegendlightsontopofthereactorprotectionsystempanel(RPStripstatusmimiclights)arewhilelightsandareusedtodenotebreakerclosed.Sincegreenisusedforbreakeropen,redshouldbeusedforbreakerclosed.~Resonse:(Section6.5,FileNo.101)ThesubjectmimicisastandardCombustionEngineeringmimicprovidedforthisgenerationplant.Themimicprovidesstatusofthesubjectbreakers(illuminatedlight-breakerclosed,lightout-breakeropen).Thecontrolroomoperatordoesnotperformanycontrolfunctionsusingthesubjectmimicandnooperatorerrorsareassociatedwithitasaresult.Themimicprovidesaquickstatusofbreakerlogicforthecontrolroomoperatoranddoesnotposeanypossibleinterpretationerrors.FloridaPowerandLightCompanyintendsnoactiononthisitem.Finding(Section6.5,FileNo.105)(HEDNo.6.5.1.6.d(l))OnallothercontroDersexceptforthefeedwaterregulatingvalvecontrollersonRTGB102,amberisusedforthemanualpushbuttonandwhitefortheautopushbutton.Onthesecontrollers,blueisusedforauto,whiteformanualandamberforhold.Thepushbuttonsareconsistentinlocationandtheamberholdbuttonisusedwiththeamberincreaseanddecreasebuttons.~Resonse:(Section6.5,FileNo.105)Thesubjectcontrollersareprocessspecificanduniqueinthecontrolroom.Thesubjectpushbuttonsareclearlylabeled,consistentlyarrangedandoperationpersonnelaretrainedintheiruseandfunction.FloridaPowerandLightCompanyintendsnoactiononthisitem.202

~Findin:(Section6.5,FileNo.109)(HEDNo.6.5.1.6.e(2))Legendpushbuttonshavelowcontrastwithcontrolpanel.~Resonse:(Section6.5,FileNo.109)Pushbuttonsinthecontrolroomareofsufficientsizeandprovideadequatecontrastwithbackgroundcolor(green)toallowforeasylocationandidentificationbycontrolroomoperatingpersonnel.FloridaPowerandLightCompanyintendsnoactiononthisitem.~F(odin:(Section6.5,FileNo.111)(HEDNo.6.5.2.1.b)Steamflow/feedwaterflowprocesscontrolleronthebackofRTGB102and103,increasewithadownwardmovement.~Resonse:(Section6.5,FileNo.111)Thesubjectdisplayisnotacontrollerbutratherdisplaysthedifferentialbetweensteamflowandfeedwaterflow(i.e.zeroincenterandincreasingvalvesineachdirection).Thedisplayisdirectreadingandisnotusedbycontrolroomoperatingpersonnelbutratherplantsupportstaff.Thesubjectdisplayiscorrectforitsintendeddesignfunction.FloridaPowerandLightCompanyintendsnoactiononthisitem.203

~Findin:(Section6.5,FileNo.112)(HEDNo.6.5.2.l.c)Thechannelpower/powerrangerecorderandreactorcoolanttemperaturerecordernumbersincreaseinarighttoleftdirectionbecausetrendrecorderisinstalledinthehorizontalsectionofthepanelupsidedown.~Resonse:(Section6.5,FileNo.112)Thechannelpower/powerrangerecorderisnolongerusedorinstalled.TheTaveragetrendrecorderisprovidedforoperatorreferencewithTreference.ThecontrolroomoperatormatchestheTreferencesignalwithTaveragebyeitheraddingboronorprimarywatertothereactorcoolantsystem.Thesubjectrecorderisusedasamatchneededdevice(minimizethedifferencebetweensignals).FloridaPowerandLightCompanybelievestheapplicationofthesubjectrecorderiscorrectandintendsnoactiononthisitem.~F(ndin:(Section6.5,FileNo.115)(HEDNo.6.5.2.2.b(1))Thewidthofthetrendrecorderpointeron:A2)3)Steamgenerator1Aand1BoutletandturbineinletpressuretrendrecorderCirculatingwaterintakewatertemperaturetrendrecorderBlowdownandcondensatephtrendrecorderexceedsthewidthoftheindexscaleintermediatemarksandobscuresshortestscalemarks.~Resonse:(Section6.5,FileNo.115)Trendrecordersprovidehistoricaltrendsofdesiredprocessparameters.Thesubjectrecordersusescaledgriddedpaperandoperatorsreadtherequiredinformationdirectlyoffthesubjectrecorderpaper.Therecordersprovidedirectlyreadableinformationi.e.operatorsdonothavetorefertoindexscaletodeterminereading.FloridaPowerandLightCompanybelievesthesubjectrecordersdoprovidethecontrolroomoperatorswithdirectlyreadableinformationandintendsnoactiononthisitem.204 00 2~F(ndin:(Section6.5,FileNo.122thtu126,128and131)Thepenonthefollowingrecordersisnotmountedclosetoscalecausingparallax:1)Pressurizerlevelrecorder2)Pressurizerpressurerecorder3)Hotlegtemperatureforloops1A/1B4)Coldlegtemperatureforloops1A1/1A2and1B1/1B25)TAVEandTREFrecorders6)'iderangepowerrecorder7)Shutdowncoolingheatexchangerinlettemprecorder8)Turbinespeed/valvepositionrecorder9)Generatormegawatts~Resonse:(Section6.5,FileNo.122thtu126,128,and131)Recordersprovidehistoricaltrendinformation.Theabovesubjectrecordersareprovidedwithscaledgriddedpaperandaredirectreading.Theoperatorisabletoseeparametertrendandalsodirectlyreadthedesiredparameterfromtherecordertrace.FloridaPowerandLightCompanyintendsnoactiononthisitem.~F(ndin:(Section6.5,FileNo.129,133,134,135,136and132)(HEDNo.6.5.2.2.b(2))Processcontrollersfortheatmosphericsteamdumps,steambypassandpressurizerheatedproportionalcontrolhaveparallaxbetweentheindicatorpointerandthegreenbandusedtoindicatetheoperatingsetpointband.~Resonse:(Section6.5,FileNo.129,133,134,135,136and137)Thesubjectgreenbandontheprocesscontrollersinquestionispartoftheoriginalequipmentdesignandisapproximately3/32ofaninchwide.Thegreenbandprovidesanoperatingbandreference.Operatorsusetrendrecordersandanalogindicatorswhenadjustingsetpointsonthesubjectcontrollerssincesystemfeedbackisnecessaryandtheeffectsofanadjustmentisnotinstantaniouslymeasurable.FloridaPowerandLightCompanybelievesthecontrolsareadequateanddoprovidetheoperatorwithsufficientaccuracyandinformationtosafelyandefficientlyperformthedesiredtasks.FloridaPowerandLightCompanyintendsnoactiononthisitem.205

~Findin:(Section6.5,FileNo.139)(HEDNo.6.5.2.2.c)Trendrecorderpointersarelocatedbehindtheindexscaleratherthaninfrontofthescale.~Resonse:(Section6.5,FileNo.139)Trendrecordersprovidehistoricaltrendsofdesiredprocessparameters.Allrecordersusescaledandgriddedpaper.Operatorsreadtherequiredinformationdirectlyfromrecorderchartpaper.Recordersprovidedirectlyreadableinformationi.e.operatorsdonothavetorefertoindexscalestodetermineparametervalve.FloridaPowerandLightCompanybelievesthesubjectrecordersprovidethecontrolroomoperatorswithdirectlyreadableinformationandintendsnoactiononthisitem.~F(odin:(Section6.5,FileNo.140,144,145)(HEDNo.6.5.2.3)Noprocesscontrollermetershavecolororpatterncodingonthescalefacetoindicatenormal,dangerous,undesirableorinefficientoperatingranges.~Resonse:(Section6.5,FileNo.140,144,145)Theabovefindingwasdeterminedtobenotapplicable.RangecodingofcontroQerscalesdoesnotprovideoperationpersonnelwithanymeaningfulinformation.Operationpersonneltakereadingsandperformcontrolfunctionsbasedonanaloganddigitalindicatorfeedback.FloridaPowerandLightCompanydoeshavearangecodingprogramforindicators.ThesubjectfindingwasdeterminedtobeinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.206 0

~Findin:(Section6.5,FileNo.167,168end170)(HEDNo.6.5.2.4.b(2))Thevibrationphaseeccentricityandphaseanglevibrationcircularmetersshouldhavezeroat12o'lockpositioninsteadof10o'lockposition.~Resonse:(Section6.5,FileNo.167,168end170)Thesubjectcircularmetersaredirectreadingandareclearlylabeled.Nooperatorerrorisassociatedwiththeiruse.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.169)(HEDNo.6.5.2.4.b(2))Themegawattandmegavarmeterdonothavethezeropositionat12o'lockwhenpositiveandnegativevalvesaredisplayed.Zeroislocatedat11o'lockposition.~Resonse:(Section6.5,FileNo.169)Thesubjectcircularindicatorsaredirectreadingandareclearlylabeled.Nooperatorerrorisassociatedwiththeiruse.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.174thsu177)(HEDNo.6.5.3.1)Pointersonsigmametersobscuresetpointindicatinglights.~Resonse:(Section6.5,FileNo.174thsu177)Setpointindicatinglightsareprovidedonsigmaindicatorsasacalibration/maintenanceaidformaintenancetechnicians.Thesubjectlightsareusedduringfieldcalibrationbenchtestingofequipment.Theindicatinglightmentionedintheabovefindingisnotusedbycontrolroomoperatingpersonnel.FloridaPowerandLightCompanyintendsnoactiononthisitem.207 00

~Findin:(Section6.5,FileNo.178thru188)(HEDNo.6.5.3.1.a(l))Simpleindicatorlightfailureordisplaycircuitisnotimmediatelyapparenttothecontrolroomoperator.Extinguishmentoflightcouldmeaneitherbulbsorsystemfailure.~Resonse:(Section6.5,FileNo.178thru188)Thecontrolroomoperatormaintainssimpleindicatinglightsaspartoftheirnormalroutines.Thoselightswithapresstotestfeaturesuchasannunciatorsareperiodicallytestedandmaintained.Safeguardsequipmentandrelatedvalvesareperiodicallytestedalongwiththeirassociatedindicatinglights.Additionally,somedisplayssuchasdieselgeneratorloadsequencestatuslightsareprovidedwithredundantlamps.FloridaPowerandLightCompanymaintainsthatthereisadequateinformationavailabletotheoperatorsuchasanalogindicators,trendrecorders,andannunciatorstoverifyequipmentstatusaswellasadequatesurveillancetestingandadministrativecontrolstoinsureindicatorlampintegrity.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.189)(HEDNo.6.5.3.1.a(3))Legendlightremovalontheelectro-hydrauliccontrolpanelmaycauseshockstothepersontryingtochangethebulb.~Resonse:(Section6.5,FileNo.189)(DuplicateofFileNo.46,Section6.4)Thesubjectlampsareremovedwiththeassociatedtileorlegend.Thesubjectlegendscanberemovedbyhandwithoutanypotentialshockhazard.WorkrequiringremovalofequipmentformaintenanceisperformedbytheInstrumentationandControlDepartment.FloridaPowerandLightCompanyintendsnoactiononthisitem.208

~Findin:(Section6.5,FileNo.190thtu194)(HEDNo.6.5.3.1.b)Indicatinglightslackuniformlyofbrightnessbecauseofinconsistentcoveropacity.~Resonse:(Section6.5,FileNo.190thtu194)hevb'ectnd'catorah~p~~vdeon/offstatusi.e.theyareeitherillumIna'edornot.Therea)'e52~~pera4or'n~erpre>a'ionermaa~c'atedwiththesubjectlightssincetheyaresufficientlybrighttodetermine'heindicatorsstatus.FloridaPowerandLightCompanyintendsnoactiononthisitem.~F(ndin:(Section6.5,FileNo.208)(HEDNo.6.5.3.3.a(2))Reactorprotectionsystemmatrixrelaylegendlights(holdanddropout)arenotlegibleunlesscomponentisilluminated.~Resonse:(Section6.5,FileNo.208)FloridaPowerandLightCompanydisagreeswiththeabovefinding.Thesubjectlegendlightsarereadable.Inaddition,theyarestatuslightswhichareusedwhileperformingequipmentsurveillancetestingunderproceduralcontrol.Thelegendlightsdonotprovidetheoperatorwithanystatusinformationwithregardtoplantoperation.FloridaPowerandLightCompanyintendsnoactiononthisitem.209

~Findin:(Section6.5,FileNo.211)(HEDNo.6.5.3.3.a(3))Thegroupdeviationandhighpowertripresetlegend/pushbuttonsaredifficulttoreadwhenindicatorlightsareon.~Resonse:(Seotion6.5,FileNo.211)FloridaPowerandLightCompanydisagreeswiththeabovefinding.Thesubjecttilesaresufficientinsizeandhaveadequatecontrasttoaffordquickandaccuratediscriminationbyoperationpersonnel.Thelegendsprovidetheoperatorwithstatusindicationwithregardtoassociatedchannelactivationand/orrodgroupstatus.Thesubjectlegend/pushbuttonsarelocatedwiththeirrespectivecontrolsanddisplays.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.223)(HEDNo.6.5.4.1.c)Allradiationmonitorimpacttrendrecordershavemorethannineminormarksbetweennumberedpoints.~Resonse:(Seotion6.5,FileNo.223)Thesubjectrecorderscalesareprocessdependentandduetothedesiredaccuracy,spacelimitationsandneedforasimple,easilyreadableindextherearemorethanninegraduationsbetweennumberedindexmarks.However,major,intermediateandminormarkcodingisemployedalongwithscaledandgriddedchartpaper.Thecodingconventionsemployedallowforeasyidentificationoftrendsandinterpretationbycontrolroomoperationpersonnel.FloridaPowerandLightCompanybelievestheexistingtrendrecordersdoprovidedirectreadinginformationinaclearandeasilyreadformat.FloridaPowerandLightCompanyintendsnoactiononthisitem.210

~Findin:(Seotion6.5,FileNo.228thru233)(HEDNo.6.5.4.1.f)Penassembliesspillwhentheoperatorfillsthem.Theyarenoteasytoadjustproperly.Spillonpapercouldcauselossofinformation.~Resonse:(Section6.5,FileNo.228thru233)Anytimerecordermaintenanceisperformed,atimemarkisplacedattheendofthetranceandthesubjecttraceisadvancedorremoved.Uponcompletionofmaintenanceandwhentherecorderisplacedinservice,itagainistimemarkedanddated.FloridaPowerandLightCompanybelievesadequateprecautionsaretakenwhenperformingrecordersmaintenancetopreventanydatalossandintendsnoactiononthisitem.~F(odin:(Section6.5,FileNo.234)(HEDNo.6.5.4.1.g)Onmorethanhalfofthetrendrecordersthetimemarkedonthepaperisincorrect.Thediscrepancyisinexcessoftwohoursinmostcases.~Resonse:(Seotion6.5,FileNo.234)Thesubjecttrendrecordersareprovidedwithrecorderchartpaperwhichisscaledinbothtimeandprocessparameter.Controlroomoperatorsdateandtimemarkcontrolroomrecordersoncepertwenty-fourhourperiodtoprovideareferencepointintheeventthereisadiscrepancyintherecorderscaletimemarkduetomaintenanceorservice.Whenrecordersareremovedformaintenanceandorservice,theirchartsarealsodatedandtimemarked.FloridaPowerandLightcompanybelievesthatthecurrentadministrativepracticesprovideadequatehistoricalrecordsandintendsnoactiononthisitem.211

~Findin:(Seotion6.5,FileNo.235,236)(HEDNo.6.5.4.1.0Norecordersareadjustableforproperspeed.Recordersshouldhaveahighspeedandaselectionoflowspeeds.~Resonse:(Seotion6.5,FileNo.235,236)Themajorityofrecordersinthecontrolroomarenotspeedselectablebythecontrolroomoperatorbutmayhavespeedchangesmadebymaintenancepersonnel.Recordersareprovidedwithsinglespeedsettingsbecausethereisnoneedforspeed.adjustabilityduetothenatureoftheprocesstheymonitor(monitoringchangesduringplantsteadystateconditionse.g.plantatfullpower).Insomeinstances,dualspeedrecordersareprovidedforuseduringstartuporshutdown.Thedualspeedrecordersprovidecontrolroompersonnelwithbetterresolutionofselectedtimebasedprocesses.FloridaPowerandLightcompanycontendstherecordersprovidedinthecontrolroomareadequateandintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.255)(HEDNo.6.5.4.2.b(4))Recordersdonotofferthecapabilitytoselectanychannelfordisplaywithoutawaitingcompletionofthecycle.~Resonse:(Section6.5,FileNo.255)Impacttrendrecordersareusedtomonitordatapointswhichnormallyhaveveryclosevalvessuchthatifonedatapointorafewdatapointsgooutofnormaloperatinglimitstheycanbeeasilyidentified.Thesubjectrecorderscanbeselectedtotrendonedesireddatapointandalsotrendblockscanbeprogrammedontheplantcomputer.FloridaPowerandLightCompanycontendsthatthecontrolroomoperatorhasadequatetrendcapabilitytoidentifyandmonitoranymajorpotentialplantparameterdeviation.FloridaPowerandLightCompariyintendsnoactiononthisitem.212

~Findin:(Section6.5,FileNo.257}(HEDNo.6.5.5.1.a(3))CountersonRTGB101havemorethanfourdigits;thereisnogroupingandseparationbycomma,decimalpointoradditionalspace.~Resonse:(Section6.5,PileNo.257)ThesubjectmechanicalcountersweredeterminedtobeunnecessaryandundernormalplantmaintenancearescheduledtoberemovedfromRTGB101.FloridaPowerandLightCompanyintendsnoactiononthisitem.213 0

~Findin:(Seotion6.5,FileNo.259)(HEDNo.6.5.5.1.c(1))DrumcounternumbersonRTGB101changeiscontinuousmovementratherthanbysnapaction;mayviewmorethanonedigitinwindowastheypassthroughintermediatepoints.~Resonse:(Section6.5,FileNo.259)ThesubjectmechanicalcountersweredeterminedtobeunnecessaryandundernormalplantmaintenancearescheduledtoberemovedfromRTGB101.FlordiaPowerandLightCompanyintendsnoactiononthisitem.'Findin:(Seotion6.5,FileNo.260)~(HEDNo.6.5.5.2.a(2))Thesubcooledmarginmonitor,hotlegtemperatureA/BloopandcoldlegtemperatureA/BLEDdisplayshaveslantedcharactersasopposedtosimplecharacters.~Resonse:(Seotion6.5,FileNo260)ThesubjectfindinghasaverylowerrorassessmentassociatedwithitsincetheLEDdisplaysinquestionarelargeandeasilyreadbyoperationspersonnelfromtheequipmentcontrolstation.FloridaPowerandLightCompanyintendsnoactiononthisitem.214

~Findin:(Seotion6.5,FileNo.261)(HEDNo.6.5.5.2.a(5))Horizontalseparationbetweencounternumeralsisgreaterthankthenumeralwidth.~Resonse:(Seotion6.5,FileNo.261)Thesubjectcounternumeralsarelargeenoughtobeeasilyreadfromtheirrespectiveoperatorcontrolstation.Theabovefindinghasaverylowerrorassessmentassociatedwithitsincethesubjectcountersareusedasintegrationdevicesandquantitiesarepresentpriortoinitiationoftheautomaticcontrolfunction.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Seotion6.5,FileNo.262)(HEDNo.6.5.5.2.a(5))DrumcountersonRTGB101horizontalseparationbetweennumeralsisnotbetweenonequarterandonehalfthenumeralwidth;separationistoogreat.~Resonse:(Seotion6.5,FileNo.262)Thesubjectdrum(mechanical)countersweredeterminedtobeunnecessaryandundernormalplantmaintenancearescheduledtoberemovedfromRTGB101.FloridaPowerandLightCompanyintendsnoactiononthisitem.215

~F(ndin:(Seotion6.5,FileNo.263)(HEDNo.6.5.5.2.b)NumeralsforD.C.voltsdisplayonthereactorprotectionsystemfolloweachotherinsuccessionfasterthantwopersecond.Thismakesitquitedifficulttoread.~Resonse:(Seotion6.5,FileNo.263)Thesubjectvoltagedisplayonthereactorprotectionpanelalsohasananalogdisplayassociatedwithitsuchthatrateofchangecanbeobservedclearlybyoperationpersonnelifdesired.Thesubjectdigitaldisplayallowsformoreprecisereadingsatsteadystateconditionsifrequired.FloridaPowerRLightCompanycontendsthesubjectdisplaysarecorrectfortheirintendedfunctionandintendsnoactiononthisitem.216 0

~Findin:(Section6.6,FileNo.50-54)(HEDNo.6.6.2.3.a)Positionlabelsarediagonalratherthanhorizontallyorientedaboutrotary,controls.~Resose:(Section6.6,FileNo.50-54)Thistypelabelingofsubjectrotarycontrolpositionsisanindustrystandard.Operatorsrecognizethismethodoflabelingasstandard.Ifguidelineswerefollowedwithlabelingswitchesofthistypeitwouldbemoreconfusing.FloridaPower4LightCompanyintendsnofurtheractiononthisitem.~Findin:(Section6.6,FileNo.109)(HED6.6.3.4.a)Theuseofabstractsymbolsinlabelsmaynotbecommonlyacceptedbyalloperators,i.e.,Gen.currentOA,OB,OC.~Resonse:(Section6.6,FileNo.109)Thissubjectabstractsymbolisindustrystandard.Itismentionedaspartoftraining.FloridaPower4LightCompanyintendsnoactiononthisitem.217

~Findin:(Section6.7,FileNo.1)(HEDNo.6.7.1.4.b)Pushbuttonsontheinternalsvibrationmonitorarearrangedotherthannormalkeysetarrangement.~Resonse:(Section6.7,FileNo.1)Thepushbuttons.arearrangedonsubjectkeyboardinaconsistentmanorwithotherindustrykeyboards.FloridaPowerandLightfeelsthisisalsoalowerrorassessmentfinding.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.7,FileNo.2)(HEDNo.6.7.1.4I)'IDDPSPanelhasapushbuttonlabelledleak.Thiswasusedtodemandacableleakageprogramontheincoredetectors.Theprogramisnowremovedandpushbuttonisnolongerfunctional.Controlroomkeyboardsshouldonlycontainuseablekeys.~Resonse:(Section6.7,FileNo.2)Thesubjectpushbuttonisengraved.Informationaboutsaidpushbuttonissuppliedintraining.FloridaPowerandLightCompany,duetothelowerrorassessments,intendsnoactiononthisitem.~Findin(Section6.7,File'No.3)(HEDNo.6.7.1.5d)Therearegroupsofkeys(pushbuttons)whichareusedtogetherorarerelatedbutareseparatedbyunrelatedkeys.Keysusedtogethershouldbeplacedtogether.~Resonse:(Section6.7,FileNo.3)Thesubjectkeysareengraved.Operatorshaveoperatingproceduresavailableforareference.Thiswasalowerrorassessment.FloridaPowerandLightCompanyintendsnoaction.218 0

,~Findin:(Section6.7,FileNo.4)(HEDNo.6.7.1e5d2)AvarietyoffunctionsareperformedontheDDPSkeys.Thedistinguishabilityofvariouskeysisdifficult.~Resonse:(Section6.7,FileNo.4)Thekeysfunctionsarecoveredinoperatortraining.Operatingproceduresareavailableforreference.Thisfindalsohasalowerrorassessment.,FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.7,FileNo.10)(HEDNo.6.7.1.8B1)Sequenceofeventsrecorderoutputpointsaredividedintogroupsbutthegroupsarenotnamedtofacilitatelocationofapoint.Operatorsmustlookthrougheachgrouptofindthepointtheyarelookingfor.~Resonse:(Section6.7,FileNo.10)Sequenceofeventsrecorderprovideshistiricalinformationandthatistheonlyintent.Operatorsuseboardinformationforequipmentandsystemstatus.FloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.7,FileNo.11)(HEDNo.6.7.2.1a)TheCRTmetrascopenumbersaredifficulttoreadfromadistance.Controlroddegreeofwithdrawalnumbersaresmallandcoloredlightorange.~Resonse:(Section6.7,FileNo.11)Thissameinformationisprovidedredundentlyatotherlocations.Thecontrolroddegreeofwithdrawalisalsoonthecoremimicaswellasthestepcounters.FloridaPowerandLightCompanyintendsnoactiononthisitem.219

~Findin:(Section6.7,FileNo.13)(HEDNo.6.7.2.1C2)WhenambientilluminationinthevicinityoftheCRT(metrascope)isinthemediumtohighrange(30-50ft.candles),theCRTshouldusedarkcharactersonlightbackground.Theilluminationis(40-46ft.candles)andlightcharactersareusedagainstdarkbackground.~Resonse:(Section6.7,FileNo.13)FloridaPowerandLightCompanyisinvestigatingtheremovaloftheexistingLucitescreenandtoreplaceitwithamattedanti-glarescreentoimprovethedisplayformat.ThisworkisbeingdonetosatisfyFileNo.14.Thereforenoactionisbeingtakenaboutlightingchangesorchangingthemetrascopebackgroundorcolordisplay.~Findin:(Section6.7,FileNo.15)(HEDNo.6.7.2.1h)Theoperatorcannotadjustlumance,contrast,orcoloroftheMetrascope'RT.~Resonse:(Section6.7,FileNo.15)Thereisnoneedtoadjustthelumance,contrast,orcoloroftheMetrascopeonceithasbeenset.Thereadoutisalpha-numericandcanbeadequatelyread.Thereforenofurtheractionisintended.~Findin:(Section6.7,FileNo.16)(HEDNo.6.7.2.2f1)Rodgroupdisplaysarenotformattedinlikegroups.Thedisplaysaretooclosetogethersothatitishardtoseeindividualroddisplaysandrodnumbers.~Resonse:(Section6.7,PileNo.16)TheMetrascopeisaredundantdisplayandprovidesrelativegroupinformation.Rodinformationcanalsobeobtainedfromthecoremimicandstepcounters.Thusnofurtheractionisintended.220

~Findin:(Section6.7,FileNo.17)(HEDNo.6.7.2.2fkd)TherodgroupdisplaysforgroupsAandBonthemetrascopearetoosmagandtooclosetobereadbytheoperatorwhentheCRTisgreaterthan35fromtheoperator'sstraightaheadlineofsight.~Resonse:(Section6.7,FileNo.17)TheMetrascopewillbemovedclosertotheoperatorwhenSASisaddedtothepanel.Thereforetherewillnotbeanymodificationstothedisplayformatorsize.~Findin:(Section6.7,FileNo.20)(HEDNo.6.7.2e4n)Rodlabelsarebelowtherodindicationratherthanabovetherodsysbol.~Resonse:(Section6.7,FileNo.20)Therodlabelpositionhasaveryminoreffectontheaccuracyofreadingrodposition.TheMetrascopedisplaysareadequatelydifferentfromotherdisplaysthatlabelposition.Nofurtheractionisintended.~Findin:(Section6.7,FileNo.21)(HEDNo.6.7.2.7b)WhenrodsdropafteratriptheMetrascopeflashesmakingthereadabilityofrodpositionimpossible.Theoperatorcannotdetermineifalltherodsaredown.~Resonse:(Section6.7,FileNo.21)Theprimarysourceofinformationfordroppedrodsorfullyinsertedrodsistherodbottomlightdisplayonthecoremimic.Thereforenofurtheractionisintended.221

~Findin:(Section6.7,FileNo.22)(HEDNo.6.7.3.1c)Theradiationmonitorprintsnon-existantpointsandvaluesalongwithexistingmonitoredpointsduringapointsummaryprintout.Thenon-existantpointsaremarkedwithasteriskwhichisthealarmindication.~Resonse:(Section6.7,FileNo.22)Alistofthemonitoredpointsispostedfortheradiationmonitortoaidtheoperatorininterpretingthesummaryprintout.Thereforenofurtheractionisintended.~F(odin:(Section6.7,FileNo.23)(HEDNo.6.7.3.1c)TheCalorimetricDataLogidentifiesnumericalvalueswithunitsofmeasurementandpointnumber.Theoperatorneedstolookatthenumberinthesystemmanualtoseewhatisbeingmonitored.~Resonse:(Section6.7,FileNo.23)Thisdataiscollectedforplantrecordsandthehistoricalfile.Themonitoredparametercanbelookedupwhenthefilesarebeingreviewed.Theoperatordoesnotnormallyusethislogforoperations.Nofurtheractionisintended.~Findin:(Section6.7,FileNo.24)(HEDNo.6.7.3.1c)TheFireProtectionPaneldatapointsconsistofa6digitlocationpointthatidentifiesthemonitorinalarm.Theoperatorneedstolookupthe'umberonacharttodeterminethenameoftheareainalarm,theslidethatshowsadrawingofthearea,andthelocationofthedetector.~Resonse:(Section6.7,FileNo.24)Thecurrentsystemprovidestheoperatorwithmoredetaildinformationthanispossiblewithaverbaldescriptionofthemonitoredlocation.Thereforenofurtheractionisintended.222

~Findin:(Section6.7,FileNo.25)(HEDNo.6.7.3.1d)TheSequenceofEventsRecorderprints144linesperminuteandthebackupprinterprints12linesperminute.Theseareslowerthanthe300linesperminuterecommendedforanalarmprinter.~Resonse:(Section6.7,FileNo.25)Thepresentprinterandbufferareadequatefortheamountofdatathatneedstobeprinted.Thereforethesystemwillremainasisandnofurtheractionisintended.~F(odin:(Section6.7,FileNo.29)(HEDNo.6.7.3.le3)InstructionstoloadpaperontheSequenceofEventsPrinterarenotprovided.~Resonse:(Section6.7,FileNo.29)Thepaperisloadedsimilartoastandardtypewriter.Sincetheloadingofpaperisobvious,noinstructionsareneeded.~Findin:(Section6.7,FileNo.30)(HEDNo.6.7.3.le3)InstructionstoloadpaperontheRadiationMonitorPrinter,FirePanelPrinter,andDDPSPrinterarenotprovided.~Resonse:(Section6.7,FileNo.30)Thepaperisloadedsimilartoastandardtypewriter.Sincetheloadingofpaperisobvious,noinstructionsareneeded.223 Q,i

~Findin:(Section6.7,FileNo.31)(HEDNo.6.7.3elf1)TheSequenceofEventsPrinterobscuresthelastprintedlinesinceitdoesnotautomaticallyadvance.~Resonse:(Seotion6.7,FileNo.31)Theoperatorcanmanuallyadvancethepaperasrequired.Thereforenofurtheractionisintended.~Findin:(Seotion6.7,FileNo.33)(HEDNo.6.7.3.2)AnnunciatorsalarmsarenotallmonitoredbytheSequenceofEventsRecorder.TheSequenceofEventsRecorderdoesnotprintthesamemessageaswrittenonanannunciatorwhenbothmonitorthesameparameter.TheoperatorcannotrequestthatmessagesbeprintedbyalarmgrOupse~Resonse:(Section6.7,FileNo.33)TheSequenceofEventsRecorderrecordspredeterminedparameteralarms.Itisnotintendedtobealogforallannunciatedalarms.Thereforenofurtheractionisintended.224

~Findin:(Section6.8,PileNo.l)(HEDNo.6.8.1.1.b)Containmentvacuumreliefvalveindicatorlightsarelocatedabovetheauxilliary/ECCSsystemdampersindicationlightsinsteadofthecontainmentpurgevalveindicationlights.~Resonse:(Section6.8,FileNo.l)Thesevalvesareautomativeexceptformanualtest.Thereisnotanynormaloremergencyoperatoractionrequiredwhichwouldbeassociatedwithothervalves.Therefore,noactionwillbetakenonthisitem.~Findin:(Section6.8,FileNo.7)(HED6.8.1.2)Theletdownlevelandletdownpressurerotaryswitchesmustbeoperatedsimultaneously.Theseswitchesareintheleastcomfortablezoneforeaseofreachandthe5thpercentilefemaleoperatorcannotreachtheseswitches.~Resonse:(Section6.8,FileNo.7)Asubsequentwalkthroughwasmadewitha5thpercentilefemale,whowasabletooperatethecontrolswitcheswithoutunduestrain.Nofurtheractionisintended.225

~Findin:(Section6.8,FileNo.18)(HEDNo.6.8.2.1a2)Componentstringsonpanels102,105and106arearrangedinanillogicalsequence(1A,1C,1B)anddonotfollowthenormalalphanumericsequenceof1A,1B,1C.~Resonse:(Seotion6.8,FileNo.18)The"C"componentsareplacedbetween"A"and"B"componentssincetheycanshareeithertheAorBpowersupply.Thisplacementservesasanindicatortotheoperatorthatthepowersupplyisshared.Nofurtheractionisintended.~Findin:(Seotion6.8,FileNo.21)(HEDNo.6.8.2.lc)Caustictanklevelandpressuredisplayshavebeenlocatedaroundcomponentcoolingwaterdisplayswhichareunrelated.~Resonse:(Seotion6.8,FileNo.21)Thedisplayswerereviewedbyoperationsandengineering.Thesafeguardsactuationsareautomatic.Thereforethereisminimalpossibleoperatorerrorinvolved,sonofurtheractionisintended.226

~Findin:(Section6.8,FileNo.22)(HEDNo.6.8.2.1.eel)ControlsanddisplaysforRPStripstatusmatrixrelayholdandtripcircuitbreakerresetareusedtogetherbutarenotwithinfunctionalreachofeachother.~Resonse:(Section6.8,FileNo.22)Thesecontrolsanddisplaysareusedduringequipmentcalibrationandsurveillancetesting.Therefore,nofurtheractionisintended.~Findin:(Section6.8,FileNo.29)(HEDNo.6.8.2.2.a)Theradiationmonitoringcabinetsarenotlocatedinsequentialorder.TheirorderisACBDE.~Resonse:(Section6.8,FileNo.29)Theradiationmonitorsareclearlylabeledastowhichradiationmonitoringchannelsareineachcabinet.Thecabinetsequenceisnotimportant.Therefore,thisisalowerrorassessmentandnofurtheractionisintended.227

~F(ndin:(Section6.8,FileNo.30)(HEDNo.6.8.2.2.a)Thepressurizersafetydischargetemperatureandpressurizerrelieflinemetersarenotinstalledinsequentialorderwithrespecttotheir'ngineeringnumbers,theorderis1107,1108,1109and1106.~Resonse:(Seotion6.8,PileNo.30)Thesemeterswerefunctionallyinstalled.Thetemperaturemonitoredlines(sensors1107,1108and1109)dischargeintothereliefline1106.Thearrangementiscorrectandnoactionisintended.~Findin:Section6.8,FileNo.34)(HEDNo.6.8.2.2.b)Thesteamdrainvalveindicatinglightsaretop-to-bottomwhilethegovernorendcrossundervalveindicatorlightsareorderedfromleft-to-right.~Resonse:(Seotion6.8,FileNo.34)Thesevalveindicatorlightsareinstalledtoreflectthefieldinstallationsequenceofthevalvesandarecorrect.Theyaresimpleindicatinglightstoshowvalvepositionandtherearenocontrolsinvolvedinthecontrolroom.Therefore,noactionisintended.228"

~Findin:(Section6.8,FileNo.41)(HEDNo.6.8.3.1)TherotarycontrolsfortheCHpower/powerrangerecorderandthereactorcoolanttemperaturerecorderaremountedcloserthan1inchapart.~Resonse:(Section6.8,FileNo.41)Thecontrolsarefunctionallylocatedwiththeirdisplays.Thedisplayconfigurationisadequateandnofurtheractionisintended.~Findin:(Section6.8,FileNo.42,43)(HEDNo.6.8.3.l.a)Severalcontrollersthatrequirefineadjustmentsarenotlocatedintheoperatorsoptimumperpendicularlineofsight.Thetopofthescaleissubjecttoparallax.~Resonse:(Section6.8,FileNo.42,43)Thesubjectcontrollersarefunctionallylocatedwiththeirdisplays.Theimportantreadingsarenotattheupperrangeofthemeterscale.FloridaPowerandLightCompanyconsidersthearrangementadequateandintendsnofurtheraction.229 000

~Findin:(Section6.8,PileNo.44)(HEDNo.6.8.3.1.b)RotarycontrolsforsprayPCV-110E.P.andtheRCpumpoillightpumparemountedtooclose.Thesecontrolsdonothaveaguard,highmovementresistanceorotherprotectionfromaccidentalmovement.~Resonse:(Section6.8,PileNo.44)Thereisalowerrorassessmentwiththisproblem.Therotarycontrolsneedtobefinelyadjustedandincreasingtheturningresistancewouldbedetremental.Therefore,nofurtheractionisintended.~F(odin:(Section6.8,FileNo.45)(HEDNo.6.8.3.1.b)RotarycontrolsforshutdowncoolingreturnandRAScontrolchannelsare,mountedtooclose.Thesecontrolsdonothaveprotectionfromaccidentalmovement.~Resonse:(Section6.8,FileNo.45)Thereisalowerrorassessmentandnoactionisintended.(SeePileNo.44)230 00

~Findin:(Section6.8,FileNo.46)(HEDNo.6.8.3.1.b)Therotarycontrolsforletdownlevelaretooclose.Thesecontrolsdonothaveprotectionfromaccidentalmovement.~Resonse:(Section6.8,FileNo.46)Thereisalowerrorassessmentandnoactionisintended.(SeeFileNo.46)~Findin:(Seotion6.8,FileNo.47)TheRMWflowpushbuttondoesnothaveabarrieranditisnotseparatedfromothercontrolsbyatleastkinch.~Resonse:(Section6.8,FileNo.47)Theoperatorshavenotexperiencedproblemswiththispushbuttonspacing.Thereisalowerrorassessmentandnoactionisintended.231"

~Findin:(Section6.8,FileNo.48)(HEDNo.6.8.3.l.b)TheRWflowpushbuttonistooclosetoothercontrols.~Resonse:(Section6.8,FileNo.48)ThisisaduplicateofPileNo.4V.~Findin:(Section6.8,FileNo.49)(HEDNo.6.8.3.l.b)PushbuttonsonsteambypasscontrollerandPWregM/Asteamgeneratorcontrolsaretooclose.Thepushbottonandcontrollersdonothaveprotectionfromaccidentalmovement.~Resonse:(Section6.8,FileNo.49)Thisproblemhasalowerrorassessmentandnofurtheractionisintended.232'

~Findin:(Section6.9,FileNo.3)(HEDNo.6.9.1.1.a)ThedisplaysforRCSpressuremustbeobservedwhilemanipulatingletdownpressure.ThedisplayisonanadjacentpanelandmaycauseparaQaxwhiletryingtomonitorthedisplay.~Resonse:(Section6.9,FileNo.3)Theprocess/taskassociatedwiththeuseofthesubjectcontrollerandassociateddisplayrequiresthatasmallcontroladjustmentbemadeandtheeffectontheprocess(loweringorincreasingRCSpressure)becheckedafewminutesafterthecontroladjustment.Thecontrolroomoperatorisfreetomovearoundinthecontrolroomtoperformothertasksandmonitordisplays.Theprocesscontroladjustmentsaremadeintheabovemanneruntilthedesiredpressureismaintained.Thesameoperatingprocedurewouldberequiredifthedisplaywasmounteddirectlyoverthecontrollerorasitiscurrentlyplaced(12inchestotheright).FloridaPowerandLightCompanymaintainsthattheexistingcontrol/displayarrangementiffunctionallyarrangedtobeoptimizeavailablespace,separationrequirementsandnormal/offnormaloperatingrequirements.FloridaPowerandLightCompanyintendsnoactiononthisitem.~F(ndin:(Section6.9,FileNo.4)(HEDNo.6.9.1.1.b)Controlsfortheflashtank,boricacidflow,liquidwasteflowandletdownarelocatedsothataright-handedoperatorwillobstructtheviewoftheassociateddisplaywithhishand.~Resonse:(Section6.9,FileNo.4)Affieldwalkdownwasperformedanditwasdeterminedthatanoperatorcanoperatethesecontrolswithoutobstructinghisview.Therefore,noactionisintended.233 000

~Findin:(Section6.9,FileNo.5)(HEDNo.6.9.1.1.b)Controllsforthepressurizerheaters,pressurizerlevel,andsprayPCYarelocatedsothataright-handedoperatorwillobstructhisviewofthedisplay.~Resonse:(Section6.9,FileNo.5)Afieldwalkdownwasperformedanditwasdeterminedthattheoperatorcanadequatelyseethedisplays,therefore,noactionisintended.~Findin:(Section6.9,FileNo.6)(HEDNo.6.9.1.1.b)ControlsforSIloopleakageandshutdowncoolingarelocatedsothataright-handedoperatorwillobstructhisviewofthedisplay.~Resonse:(Section6.9,FileNo.6)Afieldwalkdownwasperformedanditwasdeterminedthattheoperatorcanadequatelyseethedisplays,therefore,noactionisintended.~Findin:(Section6.9,FileNo.7)(HEDNo.6.9.1.1.b)Controlsonpanel102arelocatedsothataright-handedoperatorwillobstructhisviewofthedisplay.~Resonse:(Section6.9,FileNo.7}A-fieldwalkdownwasperformedanditwasdeterminedthattheoperatorcanadequatelyseethedisplays,therefore,noactionisintended.234

~Findin:(Section6.9,FileNo.8)(HEDNo.6.9.1.1.b)Therodnumbercounterisnotvisiblewhileusingtheassociatedthumbwheeltochangecountervalves.~Resonse:(Section6.9,FileNo.8)Afieldwalkdownwasperformedanditwasdeterminedthattheoperatorisabletomonitorthedisplays,therefore,nofurtheractionisintended.~Findin:(Section6.9,FileNo.9).(HEDNo.6.9.1.l.b)ControlsforCHpower/powerrangerecorderandreactorcoolanttemperaturerecorderarelocatedsothattheoperator'shandobscureshisviewofthedisplay.~Resonse:(Section6.9,FileNo.9)Afieldwalkdownwasperformedanditwasdeterminedthattheoperatorcanadequatelyseethedisplays,therefore,noactionisintended.~Findin:(Section6.9,FileNo.10)(HEDNo.6.9.1.1.b)ControlsforRCpumpsealcoolerheatexchangerisolationvalvesarelocatedsothattheoperator'shandobscureshisviewofthedisplay.~Resonse:(Section6.9,FileNo.10)Afieldwalkdownwasperformedanditwasdeterminedthattheoperatorcanadequatelyseethedisplays,therefore,noactionisintended.235

~Findin:(Section6.9,FileNo.11)(HEDNo.6.9.1.1.b)File11isaduplicationofFileNo.10.~Findin:(Section6.9,FileNo.15)(HEDNo.6.9.1.2.a.1)Dischargevalveindicationsonthesafeguardspanel(panel106)mustbecheckedbeforeoperatingfeedwaterpumpcontrols.~Resonse:(Section6.9,FileNo.15)Dischargevalvesmustbeopenedbeforethepumpscanbestarted.Thepumpsareinterlockedwithlowflowandlowpressuretrips.Valvesarefunctionallygroupedwithcontainmentisolationstatus.Therefore,nofurtheractionisintended.~Findin:(Section6.9,FileNo.16)(HEDNo.6.9.2.1.b)Legendlightsfordualscalenuclearinstrumentationareinabottomtotopsequencewhilethemeterisinalefttorightsequence.~Resonse:(Section6.9,FileNo.16)Theappropriatelightindicatorindicateswhatscaletheoperatorshoulduse.Thereisnoconfusionastowhichscaletouse.Thus,nofurtheractionisintended.236

~Findin:(Seotion6.9,FileNo.17)(HEDNo.6.9.2.1.b)Thehydrogenpuritymeterbottomscalereadsfromtoptobottomandthetopcarbondioxidescalereadsfrombottomtotop.Thehydrogenisflushedfromthegeneratorwithcarbondioxide,whichisflushed'ithair.Theparametersonthescalearearrangedfromhydrogen-air-carbondioxide.~Resonse:(Seotion6.9,FileNo.17)Themeterscaleisarrangedinthedescribedmannerduetothephysicsoftheinstrumentationusedtomaketheesmeasurements.Theindicationsareclear,andthereisnooperatorconfusion.Therefore,nofurtheractionisintended.P~Findin:(Seotion6.9,FileNo.19)(HEDNo.6.9.2.2.a)sThedisplaymonitoredwhileadjustingthecontrollerisdirectlybelowit.Processcontrolleradjustspositionofsteamvalvesupplyingturbine.~Resonse:(Section6.9,FileNo.19)Thesubjectauxiliaryfeedwatersteamturbinespeedcontrollerdisplayspumpspeedonthetopindicatorandcontrolleroutputsignalonthebottomindicator.Thesubjectcontrollerandassociateddisplaysareclearlylabelledandeasilymonitoredbycontrolroomoperators.FloridaPowerandLightCompanymaintainsthesubjectcontrollerandassociateddisplaysarecorrectasisandintendsnoactiononthisitem.237 00

~Findin:(Section6.9,FileNo.21)(HEDNo.6.9.2.2.a(1))Displaysonverticalpanel101:1)2)3)4)5)BearingoiltemperatureBearingoilpressureElectrichydraulicfluidpressureElectrichydraulicfiuidpumplAand1BcontrolBearingoilliftpumpcontrolarenotlocateddirectlyabovetheircorrespondingcontrols.~Resonse:(Section6.9,FileNo.21)Thecontrolsforthesubjectequipmentarealignedduringunitstartupandshutdown,i.e.,turnedonoroff.Thereisnothrottlingcontroloranyotheroperatorassociatedcontrolfunctionsassociatedwiththesecontrols.Thesubjectdisplaysprovidecontrolroomoperatorswiththenecessaryinformationtoperiodicallymonitorfieldequipmentstatus.Thesubjectcontrolsanddisplaysareclearlylabelledanddemarcationwillbeappliedatalaterdate.FloridaPowerandLightCompanymaintainsthecontroldisplayconfigurationisadequateandintendsnofurtheractiononthisitem.238 3.3.2DELETED/INVALIDFINDING(NOFURTHERACTIONREQUIRED)AsaresultoftheDetailedControlRoomDesignReviewandHumanEngineeringDescrepancyReviewTeammeetingsonSt.LucieUnitNo.1therewere17findings(summarizedinTable3.2-1)whichweredeletedeitherbecausetheywereduplicatedelsewareorbecausetheywereinvalid.Thesefindingsweredispositionedasrequiringnofurtheraction.TheseitemsarepresentedindetailalongwithFloridaPowerandLightCompaniesdispositioningoftheseitems.Thefollowingisalistofthosefindingswhichwere,deleted.ThesubjectfindingsarelistedbysectionnumberastheyrelatetoNUREG-0700andfilenumberastheyrelatetoFPdcL'strackingsystem.AmoredetailedlistingalongwithabriefdescriptionofeachlineitemispresentedinSection3.5ofthisreport.SECTIONNO.FILENOS.6.16.46.56.66.86.94,35,367712,41,44,45,48,49,50,107,244,248138'>>239.'

~Findin:(Section6.1,FileNo.4)(HEDNo.6.1.1.2a)Controlroomassignmentsdonotensurethattheradiationpanel,computerconsoleandCRAGpanelwillbeoperatedcorrectlyduringallplantconditionsbecauseoperatorshavenotreceivedanytrainingonthem.~Resense:(Section6.1,FileNo.4)AsaresultoftheHEDreviewteammeetingsitwasdeterminedthattheoperatortrainingprogramhasincorporatedtrainingwithregardtonewpanelinstallations.OperatorsaretrainedandthesubjectfindingwasdispositionedasinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.1,FileNo.35)(HEDNo.6.1.4.2d)Thereisnospecificprocedureforoperationofthehotshutdownpanel.~Resonse:(Section6.1,FileNo.35)DuringHEDreviewsitwasidentifiedthatplantoperatingproceduresaswellassurveillancetestproceduresdoexistforoperationofthehotshutdownpanel.ThesubjectfindingwasdispositionedasinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.1,FileNo.36)(HEDNo.6.1.4.2d)Thereisnoprocedureforrecoveryfromlossofbothheaterdrainpumps.~Resonse:(Section6.1,FileNo.36)AsaresultoftheHEDreviewteammeetingsitwasdeterminedthatcontrolroomoperatorsaretrainedinnormalandoffnormalplantoperationandadequateplantproceduresdoexistforplantnormal/offnormalconditions.ThesubjectfindingwasdispositionedasinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.240

~Findin:(Section6.4,FileNo.77)(HEDNo.6.4.4.5c)Controlhasafixedpointerandamovingscalewhichminimizesreadability.~Resonse:(Section6.4,FileNo.77)AsaresultoftheHEDreviewteammeetingsitwasdeterminedthatthesubjectcontrolscalenumeralsandindexmarksarelargetoprovidetheoperatorwithsufficientreadabilityforthedesiredaccuracy.ThesubjectfindingwasdispositionedasbeinginvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.241

'

~Findin:(Section6.5,FileNo.12)(HEDNo.6.5.1elc)Theboricacidflowandreactormakeupwaterflowtrendrecordersareonlymeaningfulwhenborationisbeingdoneinautomaticmode.Sinceitisalwaysdoneinmanualmode,thesubjectrecordersdonotprovidetheoperatorwithanyusefulinformation.~Resonse:(Section6.5,FileNo.12)AsaresultofHEDreviewteammeetingsitwasidentifiedthatthesubjecttrendrecordersprovideoperatorswithtrendsandahistoricalrecordofborationwhethertheoperationisperformedmanuallyorautomatically.Thisinformationisusefultooperationpersonnelindeterminingratesofexpectedpowerchange.ThesubjectfindingwasdeterminedtobeinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.41,44,45,48,49snd50)(HEDNo.6.5.1.2d)Meterscalesdonotcoverthenecessaryoperatingranges.~Resonse:(Section6.5,FileNo.41,44,45,48,49end50)AsaresultoftheHEDreviewteammeetingsitwasdeterminedthatindicatorscalerangesselectedwereintendedtocovernotonlynormalbutalsooffnormal(i.e.,accidentconditions)operatingrangesasrequiredbyregulatoryguidelines.Inadditiontheplantprocesscomputeralsoaugmentsthecontrolroomoperatorsavailableinstrumentationsystem.ThesubjectfindingsweredeterminedtobeinvalidandFloridaPowerandLightCompanyintendsnoactionontheseitems.242 i

~Find(0:(Section6.5,FileNo.107)(HEDNo.6.5.1.6.d(1)(2)(3))Greenappliedtometroscopeisnotwithinthecontentionalmeaningofgreen(stop,close,etc.)~Resonse:(Section6.5,FileNo.107)Themetroscope(CRT)displayusedforcontrolandassemblystatusisablackandwhitedisplay.Thesubjectdisplaydoesnotimplementanycolorconventions.FloridaPowerandLightCompanybelievesthesubjectfindingsisinvalidandintendsnoactiononthisitem.~Findin:(Section6.5,FileNo.244)(HEDNo.6.5.4.2a(l))Singlepenrecordershaveunitsofmeasurementlabelswiththesameformatasdualpenrecorders.~Resonse:(Section6.5,FileNo244)AsaresultoftheHEDreviewteammeetingsitwasidentifiedthatthesubjectrecorderlegendlabelswerecorrect.ThesubjectfindingwasdispositionedasinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.243

~Findin:(Seotion6.5,PileNo.248)~~(HEDNo.6.5.4.2a(2))Multiplescalesarepresentedontheturbinevibration/expansiondifferential/easingexpansionrecorderandtheturbinespeed/valvepositionrecorderbutlackcoding.~Resonse:(Section6.5,FileNo.248)IAsaresultoftheHEDreviewteammeetingsitwasdeterminedthatthesubjectfindingwasinvalidsincetheturbinevibration/expansiondifferential/easingexpansionrecorderhasalegendplateandeachpointisidentifiedbyadatapointnumberandtheturbinespeed/valvepositionrecorderisasinglepenunit.ItwasdeterminedthatthesubjectfindingwasinvalidandPloridaPowerandLightCompanyintendsnoactiononthisitem.244

~Find(a:(Seotian6.6,FileNa.138)(HEDNo.6.6.3.8c)ControlpositioninformationonJhandlesandkeyswitchesontheCRAGpanelareobscuredbythecontrolhandles.~Resonse:(Section6.6,FileNo.138)ThesubjectfindingisaduplicateofFileNo.137Section6.6andwasdeleted.FloridaPowerandLightCompanyintendsnoactiononthisitem.245

~Findin:(Section6.8,FileNo27)(HED6.8.2.2a)OnRTGB106,controlsanddisplaysforHPSIPumps:C/A(DischargeValveV-3655)andC/B(DischargeValveV-3653),donotfollowatop-to-bottomconvention.SwitchBislocatedaboveswitchA.~Resonse:(Sction6.8,FileNo.27)AsaresultofHEDreviewteammeetingsitwasidentifiedthatthesubjectvalvesanddisplayarrangementdocomplywiththerecommendedconventionconfiguration(top-to-bottom).TheValvesfunctionallyoperateasswingorcrosstievalvesfortheHPSIsystem.ThesubjectfindingwasdispositionedasbeinginvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.246,

~F(odin:(Section6.9,FileNo.l)(HEDNo.6.9.1.1)IndicatorlightsfortheblowdownvalvesRCV-23-1,RCV-23-2andRCV-31-1arenotlocatedneartheircontrols.~Resonse:(Section6.9,FileNo.l)As'aresultoftheHEDreviewmeetingsitwasdeterminedthatonlythedisplay,i.e.,indicatorlightsarelocatedinthecontrolroomforoperatorinformation,nocontrolsareprovided.ThisHEDwasdeterminedtobeinvalidandFloridaPowerandLightCompanyintendsnoactiononthisitem.247 0

3.4COMPLETEDBACKFITS3.4.1COMPLETEDENHANCEMENT/DESIGNSOLUTIONSAsaresultoftheconstructionworkduringtheSt.LucieUnitNo.1refuelingoutagethereis1finding(summarizedinTable3.2-1)whichwascompleted.Thefollowingstatesthefindingbysectionnumberasit'relatestoNUREG-0700andfilenumberasitrelatestoFloridaPowerandLightCompaniestrackingsystem.Adescriptionofthisfindingandit'scorrectionfoDows:SECTIONNO.FILENOS.6.833248 0D

~Findin:(Section6.8,FileNo.33)(HED6.8.2.2.a)OnRTGB106thearrangementofcomponentstringsforthefourSafetyInjectionChannelsisillogicalanddoesn'tfollowoperatorexpectationsforanalphanumericsequenceconventionasperNUREG0070Guidelines(top-to-bottomandleft-to-right).Thecontrolsanddisplaysofsubjectcomponentsinvolvingthe:SILoopPressureIndicatorsSITPressureIndicatorsSITLevelIndicatorsSITLeakageValvesSITFill/DrainValvesLPSIValves(s)RDisplaysHPSIValve(s)RDisplaysRowsofdisplaysarenotplacedsymetricaQyabovecorrespondingcontrols.~Resense:(Seotion6.8,FileNo.33)Thesubjectcontrolsanddisplayswererelocatedandplacedinthecorrectconventionalconfiguration.ThisHEDwasreviewedasapartofanEngineeringIntegrationReviewmeetingandwasresolvedwiththeissuanceofaPlantChangeModification(PCM0290s183)3andwascompletedduringthe1983RefuelingOutage.249 3.4.2SCHEDULEDCOMPLETIONDATESFORSTANDARIZEDBACKFITSOLUTIONSThissectionprovidesthecurrentlyscheduledcompletiondatesforthePlantSt.LucieUnitNo.1StandardizedBackfitProgram.PROGRAM1.'abeling2.Demarcation3.AnnunciatorReviewa)HardwareInstallation4.CodingConvention5.EngineeringIntergrationReview*a)DispositionedComplete(install)b)DispositionPending(comp.eval.)6.AdministrativeandTrainingCOMPLETIONDATEDecember1984December1984July,1984NextRefuelingOutageSeptember1984July,1984Priortoreturnfrom1983outageAugust,1984December1984*NOTE:RefertoSection3.2;5ofthisreportforalistofthoseengineeringintergrationreviewitemsscheduledforinstallationduringtheunits1983refuelingoutageandthoseitemsremainingtobereviewed,dispositionedandreportedonbyAugust30,1984.250 3.5IMPLEMENTATIONPROGRAMTRACKINGSYSTEMANDSUMMARYREPORTTheHumanFactorsImplementationProgramTrackingSystemdatabasehasbeendevelopedforthepurposesofmaintaining:oInventoryControloStatusUpdateoOpenItemsListoProjectHistory3.5.1.INVENTORYCONTROLTheImplementationProgramTrackingSystemwillaccountforafileofrecords,whicharedocumentedHumanEngineeringDiscrepenciescompliedfromanauditperformedbyEssexCorp.incoDaborationwithFloridaPowerandLightCompany.TheserecordsareabriefsynopsisofeachHumanEngineeringDiscrepancycontaining:1.2.3.4,5.AuniqueFPRLcontrolfileindexnumberingsystem.HumanEngineeringDiscrepancynumberbasedona"asfound"descrepencywithreferencetotheNUREG0700indexingformat.Identityofthegeneralareaorlocationintheplantwheretheproblemexists.Responsibleleadforworkbeingdone.Abriefdescriptionofdescrepency.3.5.2.STATUSUPDATETheImplementationProgramTrackingSystemwillmaintainstatusofeachHumanEngineeringDiscrepancieswhichwillbewithinastatusblockdesignatedforstatus(orprogress)information,andwillprovideacurrentworkhistory(orsynopsis)ofeachcontrolleditem.3.5.3.OPENITEMLISTDEVELOPMENTWheninventorycontrolandstatusupdatesaremade,theImplementationProgramTrackingSystemprovidesprojectmanagementwithacurrent"OpenItemsList",andwillenableeffectiveandsystematic"closing"ofeachitem.TheitemsthatwerecompletedhavetheassociatedPlantChangeModificationnumberlistedwhereapplicable,andareincludedintheImplementationProgramTrackingSystemforaccountabilityandhistoricalreasons.'"251 3.5.4.PROJECTHISTORYUponcompletionofthetask,thisdocumentwillprovideaprojectworkhistoryforreferencepurposes,andcanbeusedatanypointintimeasanindexforresolutionsandapplicationsfortheworkdoneduringHumanFactorsimplementationprogram.TheintentoftheImplementationProgramTrackingSystemis'oprovideprojectmanagementandsupportworkorganizationgroupswithaneffectivemeansofcoordinatingandfacilitatingtheHumanFactorsworkeffort.Theup-dateoftheImplementationProgramTrackingSystemwillbedoneona"asneeded"basis.3.5.5PROGRAMINDEXANDLISTINGThefollowingcomputerizedlistingistheindexandlistingofFloridaPowerandLightCompanySt.LucieUnitNo.1DetailedControlRoomDesignreviewimplementationprogramtrackingsystem.(SeeAppendix1).

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APPENDIXA 0 TABLEOPCONTENTS/PAGEOPERATORINTERVIEWNOISELIGHTINGCRENVIRONMEiNTCONTROLSDISPLAYSCONVENTIONSPROCESSCOL>IPUTEREMERGENCYGARiMENTSLABELINGANNUiNCIATORSANTHROPOMETRICPORCE/TORQUECOMMUNICATIONSiVlAINTAINABILITYTASKANALYSISWALK-THROUGH10365166798384919399
HUMANEMGjNEERlMGCHECKUSTOPERATORINTERVIEWEVALUATIONGUIDELINE,REF.EVALUATIONGUIDELINESenioroperatorswhosuperviseorassistoperationsofmorethanoneunitneedtobestationedsothattheycancommunicateeffectiveiywithoperatorsineachunitandhaveanunobstructedvisualpathtoeachunits'ontrolboards.6.1.3.1b.9.Emergencyequipmentwillbestoredinanorderlyfashion.10.Storagelocation(s)willbeaccessible,clearlymarked,andknowntoallpersonnel.6.14.3806.1.4.3b.24e,.Operationalcrewswillbecommittedtooneortheotherunitandwillnotbeallowedtoalternatebetweenthetwomirroredunits.Thedistinctionbetweenthemirroredunitswillbeheightenedasmuchaspossible.6.1.3.2aO6.1.3.2b.Allequipmentsuchasfire,radiationandrescueequipment,willbecheckedperiodicallyforitscondition.6.1.4.2aO5.Allequipmentwillbeeasilyandreadilyaccessible.6.14.2b.7.Cjperatorswillbetrainedintheuseofallemergencyequipment.Anadministrativeiyapprovedprocedureforeachtypeofemergencywillbewritten.6.1.4.2Co6.14.2d.8.Therewillbeanautomaticfirewarningsystemforcontrolroomfires.6.1.4.2e.ON-SITEEVALUATION9OPERATORASSISTEDEVALUATiON NOISE+Criteriaaredifferent.EVALUATIONGUIDELIIIIEREF.EVALUATIONGUIDELINERfl'.SpeechIntelligibilityVerbalcommunicationsbetweenpointsareintelligibleunderslightlyraisedvoicelevelsforambientnoiselevels.6.1.5.5aO7.Auditorysignalintensitydoesnotcauseauditorydiscomfort.8.Auditorysignalintensitiesdonotexceed90dB(A)withtheexceptionof115dB(A)forevacuationalarms.6.2.2.6b.6.2.2.6CoNoise2.Backgroundnoiselevelsdonotexceed65dB(A).3.Whenvoicetransmissionsys-temsarenotprovidedbetweentheprimaryoperatingareaandothercontrolroomloca-tions,backgroundnoiseisfurtherreduced.6.1.5.5b.CRE-ll6.1.5.5Co9.Auditorysignalfrequenciesarebetween200and5000Hzwiththemaximumrangeof500to3000Hz.10.Wide-bandauditorysignalsofapproximately200Hzareused.ll.Thesignalintensityisdis-tcernibleaboveambientCRnoise.6.2.2.5a.AD-126.2.2.5b.6D.2.1a.+AD-234.Noise.distractionsaremini-mized.6.1.5.5d.AcousticalTreatmentAcousticaltreatmentlimits$Ereverberationtimetoonesecondorless.AuditorySignals6.1.5.5e.6.Toassuregainingtheopera-tor'sattention,anormalsignal-to-noise(S/N)ratioof10dB(A)ismaintainedinthecontrolroomwithaS/Nor20dBinoneoctave'andbetween200and5000Hzbeingadequate.6.2.2.6aoAD-15ON-SZTEEVALUATZON8OPERATORASSZSTEDEVALUATZON 0 HUMANEIIIGIIIIEERlNGCHECKLlST+Criteriaaredifferent.EVALUATIONGUIDELINEREF.EVALUATIONGUIDELIIIIE5.6.70Illuminatedindicatorsareatleast10%greaterinillumi-nationthansurroundingpanel.Ambientlightingavoidreflectionorrefractionthatcauselightindicatorstoappeartobeglowingwhentheyarenot.Changesinambientlightingdonotaffectdiscriminationofcolorcoding.Theemergencyilluminationsystemprovidesaminimumof10footcandlesatallworkstationsintheprimaryopera-tingarea.Failureofthenormallightingsystemdoesnotdegradetheemergencylightingsystem.Anautomaticallyactivatedemergencylightingsystemthatisindependentofanyotherlightingsystemispro-vldedeSurfacecolorsarerecog-nizableunderbothnormalandemergencyconditions.6.5.3.2b.and6.5.3.3a.(1)VD-906.5.3.1b.VD-916.5.1.6e.(3)VD-656.1.5.4Co6.1.5.4b.6.1.5.4aO6.1.5.3h.CRE-710.12.13.14.15.,16.17.Labels,instructionsandotherwritteninformationarenotinashadowedposition.Ambientilluminationispro-videdviadirectordiffuselighting.Toreduceoperatorfatigueandeyestrain,shadowsareavoided.Luminanceratiosfortaskareasconformtoguidelines.Supplementallightingprovidesforspecializedvisualtasksinareaswherefixedilluminationisnotadequate.Illuminationlevelsdonotvarygreatlywithinworkstations.Illuminationlevelsconformtoguideline.Theilluminatedconditionisrecognizableunderthehighestpredictedambientlightcon-ditionandisatleast10%brighterthanthesurroundingpanel.6.1.5.3e.(2)6.1.5.3e.Q)CRE-56.1.5.3e.6.1.5.3d.CRE-86.1.5;3CoCRE-106.1.5.3b.6.1.5.3+CRE-106.4.3.3b.(2)8.Reflectanceconformstoguidelines.9.Glaredoesnotinterferewithreadabilityofdisplays,labels,orindicators.6.1.5.3geCRE-66.1.5.3f.CRE-318.19.WhentheCRTuseslightchar-actersonadarkbackground,characterluminanceis23ft-Lminimumand46ft-Ipre-ferred.WhentheCRTusesdarkchar-actersonalightbackground,screenbackgroundluminanceis23ft-Lminimumand466.7.2.1c.(4)+VD-47QN-S1TERVALUATTAM
HUMANEIIIGlMEERIMGCHECKLlSTEVALUATIONGUIDEL}IEREF.EVALUATIONGUIDELINE21.22.23.WhenambientilluminationinthevicinityoftheCRTisinthemediumtohighrange,theCRTusesdarkcharactersandsymbolsonalightbackground.Ambientillumination'on-tributesnomorethan25%toscreenluminancethroughdiffusereflectionandphos-phorexcitation.CRTscreensareinstalledtominimizeoreliminatereflectedglareatnormaloperatorviewingangles.Alphanumericandgraphiccharactersareeasytoreadunderallcontrolroomlightingconditions.6.7.2.1c.(2)VD-476.7.2.1c.(1)VD-476.7.2.1b.VD-476.7.2.1aOVD-4724.Properlightingofatleast8ft.Cisprovidedinworkaccessareas.CRE-ICOUNTERSVisibility25.7jfCountersareself-illuminatedwhenusedinareaswhichpro-videdisplayluminancebelow1ft.-L.VD-83 HUMANEMGINEERIMGCHECKLISTCRENVIRONMENTEVALUATIONGUlDELINEREF.EVALUATIONGUIDELINEWorkspaceArrangementfEControlroomarrangementfacilitatesefficientunob-structedmovementandcom-munication.2.EquipmentisarrangedwithfPmovementandcommuni-cationspatternsinmind.Visualrelieffromarraysofinstrumentationisprovided.Controlsarelocatedsothatsimultaneousoperationof2controlsdoesnotrequireacrossingorinterchangingofhands.WorkspaceLocation6.Operatorsatdesksandcon-soleshavefullviewofalleon-'trolanddisplaypanelsintheprimaryoperatingareas.7.Deskandconsoleplacement$Efacilitatesvoicecommunica-tionsfromseatedoperatorstoanypointintheprimaryoperatingarea.Qut-of-the-waystorageispro-videdforoperators'oatsandpersonalbelongings.5.Theshiftsupervisor'sofficeis$P.readilyaccessibletothecon-trolroom.6.1.1.3d.(1)6.1.3.1aO6.1.5.7a.(3)WA-46.1.1.6aO6.1.1.3aOWA-286.1.1.3b.6.1.5.6aO9.10.12.13.N14.Shelvesarelocatedsothatcontentscanbeseenandreached.Undernocircum-stancesisthetopshelfhigherthan76inches.TheCRTscreendataandmessagesarewithinunobstructedviewoftheoperatoiatnormalworkstation.Ifwritingspaceisonthecon-sole,itdoesnotinterferewithviewingandoperationofcon-.trolsanddisplays.Ifwritingspaceisnotpro-videdontheconsole,itislocatedatanearbydeskortable.Controlsareplacedclosetothedisplaytheyaffectandwithanequaldistributionofworkbetweenrightandlefthands(finestadjustmentreservedfortherighthand).Controlsonaverticalsuifacearelocatedinanareanogreaterthan8inchesabovetheheadandnofurtherthan18inchesfromthecenterline.Controlsfrequentlyoperatedorcriticalarelocatedbetweenshoulderlevelandwaistheight.WA-86.7.2.3f.6.1.2.3h.(2)6.1.2.3h.(3)WA-3WA-6ON-SITEEVALUATIONOPERATORASSISTEDEVAL HUMAINEIIIG)NEER)MGCHECKLlsTCRENVIRONMENTEVALUATlONGUlDEl.lNEREF.EVAl.UATlOMGUlDEl.llblEREF.15.Finger-operatedcontrolsarelocatedwith29inchesfromoperator'sshoulder.Controlsoperatedwiththewholehandarelocatedwithinapproximately27inchesoftheoperator'sshoulder.WorkspaceSize,Shape,Design17.OperatorsareabletoperformItasksatanyworkstation.18.Ameansforvoicecommuni-~~cationsisprovidedinrest-roomsandeatingareas.19.DesksprovideenoughspaceIforallmaterialsrequiredduringtaskperformance.Adequatespaceisallowedbetweenthechairanddesk/consolesotheoperatorcaneasilygetinandoutofthechairorcanviewequipmentbehind.23.XEPanelsandequipmentenclosuresaredesignedsothatnounwantedobjectscanbeintroduced.20.Deskshaveadequatekneespace.25prk8yggQygti~gd~gicggi~orkIcomfortablyatdesksasper-mittedbydeskdimensions.WA-3.WA-36.1.1.3c.(2)6.1.5.7b.(>)6.1.2.7aO6.1.2.7Co6.1.2.7b.6.1.1.3e.24.y25.26.27.28.29.30.gpLockersarelargeenoughforstorageofpersonalitems.Theminimumlateralwork-spaceforrackswithdrawers:a)rackswithdrawersweighinglessthan45lbs.,18inchesclearanceononesideand4inchesclearanceontheother;andb)rackshavingdrawersweighingover45lbs.,18inchesclearanceoneachside.Segmented,wraparoundcon-solesareusedwhenthepanelspaceforasingleseatedoperatorexceeds44inchesofflatsurface.Ifvisionovertopisrequired,thewidthofcentralsegmentdoesnotexceed44inchesandtheleftandrightsegmentsdonotexceed24inches.Controlsusedforperformingthesamefunctionondifferentitemsorequipmentarethesamesize.Labelsarelocatedonmainchassisoftheequipment.Wheninstructionsapplyingtoacovereditemarelabeledonahingeddoor,theletteringisproperlyorientedsothatitcanbereadwhendoorisopen.6.1.5.6b.WA-15'A-28WA-28CON-1PA-44PA-29ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANEMGlNEERlNGCHECKLlSTCRENVIRONMENTEVALUATlONGUIDELlMEREF.EVALUATIONGUIDEUNEWorkspaceVisibility1.Totalleft-to-rightviewingangledoesnotexceed190o.WA-2939.Stairs,stair-ladders,ramps,etc.,areequippedwithhand-railsoneachside.Whereoneorbothsidesareopen,guard-railsareprovided.WA-3632.jp33.eWherefunctionalgroupsareoutlinedwithcontrastinglines,a1/16inchborderdesig-natessecondaryornon-criticalgroups.Wherefunctionalgroupsareoutlinedwithcontrastinglines,a3/16inchborderdesignatesprimary,emer-gency,orextremelycriticaloperations.CDI-13CDI-1340.41.8Stair-laddersaremadeofmetal;handrailshavenon-slipsurface.Emergencydoors/exitsareaccessibleandeasilyopened.Thedoorsaredesignedtobeopenedbyasinglemotionofhandor,foot.Thereareemergencyexitsfromsecureorclassifiedareas.WA-39CRE-1'7WorkspaceSafety34.yOperatorsareabletogettoanyworkstationwithoutencounteringanyobstacles.6.1.1.3c.(l)42.Exposededgesareroundedtoaminimumradiusof.4inchandcornerstoaminimumof.5inch..VD-6WorkspaceClimate35.e..Handsetcordsarepositionedtoavoidentanglingcriticalcontrolsorendangeringpassingtraffic.Verticallymountedhandsetcradlesarelocatedoutofthewayoftraffic.6.2.1.2b'.(5)'.2.1.2b.(6)43.y44.Theclimatecontrolsystemiscapableofmaintainingtemperatureandhumidity.Airtemperatureatfloorandheadlevelsdonotdifferbymorethan10oF.6.1.5.1aoCRE-16.1.5.1b.CRE-137.8Handrailsareprovidedforplatforms,stairs,andflooropeningsorwhereverper-sonnelmayfallfromaneleva-tion.Skid-praofflooringonstairorstep-treadcoveringsareused.CRE-1WA-3945.46.tyCapacityofventilationsystemisatleast15cubicfeetperminuteperoccupant.Airvelocityintheprimaryoperatingarea'oesnotexceed45feetperminutemeasuredatoperatorheadlevelanddoesnotproduceanoticeabledraft.6.1.5.2aOCRE-156.1.5.2b.CRE-15 HUMANENGINEERINGCHECKLISTEVALUATIONGU)GEL)NEEVALUATIONGUIDEL)NEREF.WorkspaceComfortControlroomcolorsarecoordinated.48I49.Comfortableseatingispro-vided.50.Carpetingisprovided.Colorandlightingcreatesacheerfulatmosphere.6.1;5.7a.(l)6.1.5.7a.(2)6.1.5.7a.(4)6.1.5.7a.(5)'8.grafThebackrestreclinesbetween103oand115o.Thebackrestengagesthelumbarandthoracicregionsoftheback,andsupportsthetorsosothattheoperator'seyescanbebroughtto"eyeline"withnomorethan3inchesofforwardbodymovement.IfonlylumbarsupportIsgiven,lateralcurvaturedoesnotexceed7.3inchesinradius.WA-1752.4P53.54.56.Chairspivotsothatoperatorscanreadilyadjustposition.Arestroomandkitchenoreatingareaarelocatedwithinornearcontrolroom.Restroomandeatingfacilities'reeasilyaccessible.Arestareaisprovided.Chairspivotsothatoperatorscanreadilyadjustposition.Chairssupportthelowerback;theanglebetweenthebackandseatisabout100oforofficetasksandgreaterforreadingandresting.Chairswitharmrestsarepre-ferredforpersonnelwhoremainseatedforlongperiodsoftime.6.1.2.8aO6.1.5.7b.(1)6.1.5.7b.(2)6.1.5.7co6.1.2.8aO6.1.2.8b.WA-176.1.2.8cWorkspaceAccessoryHardwareLightingsystemsuselightbafflesordiffusedindirectlighting.60.Trademarks,companynames,orothermarkingsarenotdisplayedonthepaneiface.62.Acousticaltreatmentinaccordancewiththefigureonbackisusedtoreducerever-berationtime.WorkspaceQlumination63.Luminairesareplacedatleast60ofromtheviewer'slineofsight.WorkspaceAcoustics61.TheaverageroomsoundfEabsorptioncoefficientisatleast.20.CRE-3CRE-6CRE-14CRE-12Seatsandbackrestsarepaddedwithatleast1"ofcompressiblematerial.6.1.2.8d.WA-17ON-SITEEVALUATZONjsOPERATORASSISTEDEVALUATION
HUMANEMGtIIIEERjIGCHECKI.1ST0EVALUATIONGUIDELINEEVALUATIOIGUIDEl.lNE64.Instrumentpanelshaveadullmattefinish.65.Pastelsandlightgraysareusedforceilings,walls,orcansolesratherthandarkgrays,green,blue,red,andbrown.ControlRoomPerformanceAidsCRE-3CRE-573.DocumentsareprotectedfromfPbeingdog-eared,dirty,loose,tom,anddifficulttoread.74.Setsofproceduresarestored8separatelyforeachunitinamulti-unitcontrolroom.75.ProceduresareaccessibleIwhiletasksarebeingper-formed.6.1.1.4d.6.1.1.4e.6.1.2.666.jjProceduresreferencesaccessible.andotherarereadily6.1.1.4a.(i)WA-3376.Annunciatorresponseproce-duresareavailableinthecon-trolroom.6.3.4.3aO68./Jf69.fPReferencedocumentsarestoredoutintheopenwheretheyareeasytolocateanduse.Specificdocumentsareclearlylabeled.Labeisdistinguishdocuments..6.1.1.4a.(2)WA-336.1.1.4b.(i)6.1.1.4b.(2)77.Annunicatorresponseproce-duresareindexedbypanelidentificationandannunciatortilecoordinates.78.Eachplantunithasitsownsetofprocedures.ControlRoomProceduresDesign6.3.4.3b.6.1.3.1d70.y0Amethodoforganizingdocumentstoreducesearchtimeisused,suchasseparatingoperationaldocu-mentationfromotherdocuments.6.1.1.4b.(3)79.NonessentialpersonnelhaveIlimitedaccesstovariousareaswithinthecontrolroom.6.1.1.771.072.iy0Documentsareremovablefromracks.IDocumentsareboundandper-mitfixedopeningatadesiredplace.6.1.1.4c.(1)6.1.1.4c.(2)ON-SITEEVALUATION8OPERATORASSISTEDEVALUATION
HUMANEMGlIEERIMGCHECKLlST10CONTROLS+Criteriaaredifferent.EVALUATIOIIIGUIDELINEREF.EVALUATIOIGUIDELIItIEPUSH-PULLOperationseArrangement1.ControlseparationconformstoTable6.8-2and6.8-3.Coding/Identification2.EachcontrolisrecognizableinI.termsofitsfunction.Ifthereislabelingonthisslidecontrol,controlshaftislockedinpositiontomaintaincorrectlabelorientation.Alldiscretefunctionalcontrolpositionsareidentified.5.WhencolorcodingisusedtoQrelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.Size,Shape,Design6.Selectedcontrolsmakebest~~useofspacefortheintendedpurposeandrequirementsforactivation.6.8.3.16A.l.lc.(i)'ON-66.6.3.8a.6A.2.2f.(2)CON-26A.1.1b.(4)7.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandIorientedsothattheopera-torwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmoVe-ments.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.ControlsarecoveredorfPguardedwithmovablebarriers.d.ControlsareprovidedwithIinterlockssothatextramovementisrequired.e.Controlsareprovidedwithinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.ControlsareprovidedwithIresistancesothatdistinctorsustainedeffortisrequiredforactivation.8.Ifcontrolsarerecessed,shieldedorotherwiseguarded,thecontrolisentirelycon-tainedwithintheenvelopedescribedbytherecessorbarrier.6A.1.2aOCON-16A.1.2b.(i)CON-16.4.1.2c.(i)6A.1.2d.(1)CON-16.4.1.2d.(2)'ON-16.4.12eCON-16.4.1.2b.(2)CON-1ON-SITEEVALUATIONIsOPERATORASSISTEDEVALUATION HUMAINENGINEER)MaCHECKLISTCONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGVIDEUNEWhenaguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.6A.1.2c.(3)CON-116.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.Maintenance=6.6.3.8Ce10.Onmoveablecoversorguards,$Psafetyorlockwiresarenotused.6A.1.2c.(2)CON-1Controlsurfaceshavenot(Rbeenallowedtobreak,chiporcrumble.6A.l.le.(1)Whensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.6A.1.2f.CON-112.Rotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubject-toinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.6.4.1.2geCON-113.Push-PullcontrolshavetheoperatingpositionintheOUTposition.CON-6Direction/RateofMotionControlmovementsconformtopopulationstereotypes(seetableinback).6.4.2.1CON-1Visibility15.Thecontrolcolorcontrastswiththepanelbackground.6A.2.2f.(3)CON-3ON-S1TEEUhTUhTTAN8APERh'TEERh00T%TEDEVhT.ffh'PT HUMANENGINEERINGCHECKLIST12CONTROLSEVALUATlONGUlDELlIEREF.EVALUAT10NGUlDELlNETOGGLESWITCHESSize,Shape,DesigneArrangement18.Whereahorizontalrowofdis-playsisassociatedwithaver-ticalcolumnofswitches(orviceversa),thefarthestlefthorizontalitemcorrespondstothetopmostverticalitem.19.Whereswitchesarearrangedinfewerrowsthandisplays,switchesassociatedwithtoprowofdisplaysarepositionedatfarleft;switchesassocia-tedwithsecondrowof,dis-playsareplacedimmediatelytotheright,etc.Coding/Identification21.mEachcontrolisrecognizableintermsofitsfunction.Alldiscretefunctionalcontrolpositionsareidentified.23.QWhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.20.Controlseparationconforms$PtoTable6.8-2and6.8-3.CDI-11CDI-3.16.8.3.16.4.1.1c.(1)6.6.3.8aOPA-28PA-496.4.2.2f.(2)CON-224.Selectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.26.Omitted./JfOperations27.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandIorientedsothattheopera-torwillnotstrikethemaccidentallyinanysequenceofcontrolmove-ment.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.Controlsarecoveredorguardedwithmovablebarriers.d.ControlsareprovidedwithfRinterlockssothatextramovementisrequired.25.ToggleswitchesconformtofPthedimensionsinthefigureonthebackofthispage.64.1.1b.(4)6.4.5.3CoCON-66.4.1.2aoCON-16.4.1.2b.(i)CON-16.4.1.2c.(1)64.1.2d.(1)CON-1eON-SITEEVALUAT1ONLsOPERATORASSISTEDEVALUATION HUMANENGIIIIEERIMGCHECKllST13CONTROLSEVALUATIONGUIDELINEBEl'.EVALUATIONGUIDELINEREF.e.ControlsareprovidedwithIinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.ControlsareprovidedwithIresistancesothatdistinctorsustainedeffortisrequiredforactivation.28.Ifcontrolsarerecessed,shieldedorotherwiseguarded,thecontrolisentirelycon-tainedwithintheenvelopedescribedbytherecessorbarrier..9.Whenaguardisintheopen~~~Iposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.30.Onmoveablecoversorguards,safetyorlockwiresarenotused.6A.1.2d.(2)'ON-16A.1.2e.CON-16A.1.2b.(2)CQN-16.4.1.2c.'(3)CQN>>16.4.1.2c.(2)CQN-133.Ifthisswitchrequiresonly.occasionalresettingitispro-videdwithcovertoprotectitagainstinadvertentactuation.34.Ifused,theguardiseither:a.Lift-to-unlockmecha-nism-resistancedoesnotexceed48oz.b.Safetycover-locationdoesnotinterferewithactivationofguardedcon-troloranyadjacentcon-trols.c.Anyequivalentmethod.Direction/RateofMotion35.Controlmovementsconformtopopulationstereotypes(seetableinback).Feedback,CQN-66A.2.1CON-131.I32.IRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.Whensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.6.4.1.2geCON-16A.1.2f.CQN-136.3Toggleswitcheshaveanaudiblecheck,orprovidesomeothersourceoffeedbackuponactivation.Visibility37.Thecontrolcolorcontrastswiththepanelbackground.38.ControlpositioninformationisQvisibletotheoperatorduringcontroloperation.6A.5.3b.CON-66.4.2.2f.(3)CON-36.6.3.8CoON-SITEEVALUATIONIsOPERATORASSISTEDEVALUATION
HUMANEIGlNEERINGCHECKUST14CONTROLSEVALUATIONGUIOELIIIIEREF.EVALUATIONGUIDELINEREl'.Maintenance39.Controlsurfaceshavenotbeenallowedtobreak,chiporcrumble.64.1.1.:(1)ROCKERSWITCHESArrangement40Controlseparationconforms$PtoTable6.8-2and6.8-3.41.Rockerswitchesareorientedverticallyunlessthelocationofthecontrolledfunctionorequipmentrequiresittobehorizontal.Coding/Identification42.EachcontrolisrecognizableinItermsofitsfunction.43.Alldiscretefunctionalposi-t>onsare<denttfied.6.8.3.16.4.54a.(2)CON-76.4.1.1c.(l)6.6.3.8aOPA-28PA-49Whencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.Size,Shape,Design45.RockerSwitchdisplacement(seefigure)isam>nimumof30degreesandamaximumof120degreesfortwopositionsandaminimumof18degrees,amaximumof60degrees,andanoptimumof25degreesforthreepositiohs.46.Rockerswitchesconformtothedimensionsinthefigureonthebackofthispage.6.4.2.2f.(2)CON-26.4.5.4e(3)(4)CON-76.4.5.4e.CON-7ON-SITEEVALUATION9OPERATORASSISTEDEVALUATION HUMANENGINEERINGCHECKI.ISTCONTROLSEVALUATlONGUIDELlNFEVALUATlONGUlDEUMEREF.47.Selectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsfor~~activation.1Operations48.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.Controlsarelocated'ndIorientedsothattheopera-tordoesnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ments.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.ControlsarecoveredorPPguardedwithmovablebarriers.d.ControlsareprovidedwithIinterlockssothatextramovementisrequired.e.ControlsareprovidedwithIinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.ControlsareprovidedwithIresistancesothatdistinctorsustainedeffortisrequiredforactivation.6A.l.lb.(4)6.4.1.2aoCQN-16A.1.2b.(1)CQN-16A.1.2c.(1)6.4.1.2d.(i)CQN-16A.1.2d.(2)CON-16A.1.2e.CON-149.50.I51.52..54.fR55.Ifcontrolsarerecessed,shieldedorotherwiseguarded,thecontrolisentirelycon-tainedwithintheenvelopedescribedbytherecessorbarrier.Whenaguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.Onmoveablecoversorguards,safetyorlockwiresarenotused.Rotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.Whensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsformpassingthroughaposition.Furthermovement:requiresanewcontrolaction.Intheonposition,thetopoftheswitchisflushwiththepanelsurface.Controlsthathavecriticalfunctionsareprotectedtopreventinadvertentactiva-tion.6.4.1.2b.(2)CON-16A.1.2c.(3)CON-16.4.1.2c.(2)'OJV-16.4.1.2goCQN-16.4.1.2f.CON-16A.SAb.(2)CON-76.4.5.4d.CON-7ION-SZTEEVALUATION8OPERATORASSISTEDEVALUATION
HUMANEhlGIMEERINGCHECKLIST16CONTROLSEVAI.UATIONGUIOEI.INEREF.FVAI.UATIONGUIDEI.INEDirection/RateofMotion56.Controlmovementsconform~~~~topopulationstereotypes(seetableinback).57.ActivationoftheupperpartcontrolstheQNorINCREASEfunction.Feedback58.,Activationisindicatedbyamsnapfeel,anaudiblecheck,oranintegrallight.64.2.1+CQN-116.4.5.4a.(1)CON-7164.5.4b.(i)SLIDESWITCHArrangement62.ControlseparationconformstoTable6.8-2and6.8-3.Coding/Identification63.EachcontrolisrecognizableinNtermsofitsfunction.64.Alldiscretefunctionalcontrolpositionsareidentified.6.8.3.164.1.1c.(1)6.6.3.8aOPA-28PA-49Visibility~~59.The,controlcolorcontrastswiththepanelbackground.64.2.2f.(3)CON-365.NWhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.64.2.2f.(2)CON-260.ControlpositioninformationisNvisibletotheoperatorduringcontroloperation.Maintenance61.ControlsurfaceshavenotQbeenallowedtobreak,chiporecrumble.6.6.3.8Co6.4.1.1e.(l)Size,Shape,Design66.$JfSelectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.67.Slideswitchlengthis1.0inch.64.1.1b.(4)64.5.2b.(2)CON-768.Thesurfaceofslideswitchesisserratedorknurled.6.4.5.2aOCON-769.Slideswitchthicknessis0.25inch.6.4.5.2b.(1)CQN-7ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUNlANENGlNEERIMGCHECKLlST17CONYRGLSEVALUATIONGUIDELINEEVALUATIONGUIDELINEREF.Operations70.Accidentalactivationofcon-troisisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandQorientedsothattheopera-'orwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ment.b.Controlsarerecessed,shieided,orotherwisesur-roundedbyphysicalbarriers.c.Controlsarecoveredor8guardedwithmovablebarriers.d.ControlsareprovidedwithQinterlockssothatextramovementisrequired.e.Controlsareprovidedwithminterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.Controlsareprovidedwithmresistancesothatdistinctorsustainedeffortisrequiredforactivation.71.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.64.1.2aOCQN-164.1.2b.(i)CON-164.1.2c.(i)6.4.1.2d.(1)CON-16.4.1.2d.(2)CON-164.1.2e.CQN-16.4.1.2b.(2)CQN-'172.QWhentheguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.74.SRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.75..Whensequentialactivationismnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.Direction/RateofMotion76.Controlmovementsconformtopopulationstereotypes(seetableinback).Visibility77.Thecontrolcolorwillcontrastwiththepanelbackground.78.ControlpositioninformationisQvisibletotheoperatorduringcontroloperation.73.Qnmoveablecoversorguards,safetyorlockwiresarenotused.6.4.1.2c.(3)CON-164.1.2c.(2)CON-164.1.2goCQN-16.4.1.2f.CQN-16.4.2.1+CON-164.2.2f.(>)CQN-36.6.3.8CoON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANEmalNEER)MGCHECKUST18CONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEMaintenanceControlsurfaceshavenotbeenallowedtobreak,chiporcrumble.6.4.1.1e.(i)THUM3%HEEL5Arrangement80.ControlseparationconformstoTable6.8-2and6.8-3.6.8.3.1'oding/Identification81.EachcontrolisrecognizableinQtermsofitsfunction.6.4.1.1c.(1)82.Ifthethumbwheelisusedasaninputdevice,theQFF,zero,ornormalpositionwillbecoded.64.5.1b.+CON-983.Vlhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.84.Alldiscretefunctionalcontrolpositionsareidentified.Size,Shape,Design6.4.2.2f.(2)CQN-26.6.3.8aO85./janSelectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.6.4.1.1b.(4)86.Thumbwheelreadoutsarevisiblefromthethumbwheeloperatingposition.6.4.5.1aoCON-887.Discretesettingthumbwheelsconformtothefigureandexhibitrecommendeddimen-sions.64.5.1d.(1)CON-9 HUMANENGINEERIMGCHECKLISTCONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGUIDEUNEREF.Operations'8.Accidentalactivationofeon-'~~troisisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.Controlsarelocatedandorientedsothattheopera-torwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ment.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.'ontrolsarecoveredorguardedwithmovablebarriers.d.Controlsareprovidedwithminterlockssothatextramovementisrequired.e.Controlsareprovidedwithminterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.Controlsareprovidedwithmresistancesothatdistinctorsustainedeffortisrequiredforactivation.89.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.6A.1.2aOCON-16A.1.2b.(i)'ON-16A.1.2c.(1)6A.1.2'.(i)CON-16.4.1.2d-(2)CQN-16.4.1.2b(2)'ON>>16A.1.2b.(2)CON-'190.mWhenaguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradjacentcontrols.92.m93.e'4.mWhensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.Continuousadjustmentthumb-wheeishaveatleastoneinchofthewheelexposedtoper-miteasymanipulation.WhencontinuousadjustmentthumbwheelshaveanCFFposition,adetentisprovidedforfeedbackatthatpoint.Direction/RateofMotion95.Controlmovementsconformtopopulationstereotypes(seetableinback).96.Directionofmotionisidenti-fiedforcontinuousmotionrotarycontrols.91.Qnmoveablecoversorguards,safetyorlockwiresarenotusede6A.1.2c.(3)CQN-16.4.1.2c.(2).CQN-16.4.1.2f.CON-164.5.1c.(1)CON'-96.4.5.1c.(3)CQN-96.4.2.1CQN-16.6.3.8b.PA-32 HUMANEIIIGINEERlIIIGCHECKLlST20CONTROLSEVALUATlONGUlDELlIEREF.EVALUATIONGUiDELlNEREF.Resistance,Force,TorqueThumbwheelcontrolswhichhavediscretesettingsaredetentedbetweenpositionsandsnapintoeachposition.6.4.5.1d.(1)CON-9PUSHBUTTONSArrangement102.ControlseparationconformstoTable6.8-2and6.8-3.6.8.3.1Visibility98.Thecontrolcolorcontrastswiththepanelbackground.64.2.2f.(3)CON-3103.ILampsonpanelshavinglessthan4lightsmaybetestedbyindividualpresstotestfunctiononlegendpush-buttons.VD-9299.Controlpositioninformationisvisibletotheoperatorduringcontroloperation.ReadabiHty100.Digitsonthisthumbwheelarebold,blacknumeralsengravedonalightbackground.Maintenance6.6.3.8CeCON-9104.Displaysarearrangedcon-sistentlyfrompaneltopanel.onlegendpushbuttons.105.SimultaneoustestingoflampsQonallcontrolpanelsisavail-ableonlegendpushbuttons.106.Sarriersareusedwhenlegendpushbuttonsarelocatedtooclosetoeachother.VD-18VD-916.4.3.3d.(i)>>CON-5101.ControlsurfacehasnotbeenQallowedtobreak,chiporcrumble.6.4.1.1e.(1)Coding/Identification107.EachcontrolisrecognizableinItermsofitsfunction.6.4.1.1c.(1)108.IWhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.6.4.2.2f.(2)CON-2 HUMANEMGIItIEERIIIIGCHECKLlST21CONTROLSEVAl.UATlONGUlDELlmEREF.EVALUATlONGUIDEi.lNESize,Shape,DesignSelectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.110.Sizedimensionsforlegendpushbuttonsareaminimumof0.75inchandamaximumof1.5inches.lll.BarrierdepthforlegendbuttonsisaminimumofinchandamaximumInch+push-0.1830.250112.Barrierwidthforlegendpush-buttonsisaminimumof0.125inch.114.4PDiameterforfingertipopera-tionofunguardedandnon-recessedpushbuttonsisaminimum0.385inchandofguardedorrecessedpush-buttonsisaminimumof0.75inch.115.Barriershaveroundededges.116.Thesurfaceofapushbuttonoffersslipresistanceorisconcave.113.Pushbuttondiameterforthumborheelofhandopera-tionisaminimumof0.75inch.6.4.1.1b.(4)6A.3.3e.(i)CON-56.4.3.3c.(4)CQN-56.4.3.3e.(3)+CON-56.4.3.2b.CON-56.4.3.2a.+CON-56.4.3.3d.(2)CON-'56.4.3.1CoCQN-5Operations117.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandIorientedsothattheopera-torwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ments.b.Controlsarerecessed,shielded,ototherwisesur-roundedbyphysicalbarriers.c.Controlsarecoveredor8guardedwithmovablebarriers.d.ControlsareprovidedwithIinterlockssothatextramovementisrequired.e.ControlsareprovidedwithIinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.Controlsareprovidedwithresistancesothatdistinctorsustainedeffortisrequiredforactuation.118.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.6.4.1.2aOCQN-16A.1.2b.(1)CON-1.6.4.1.2c.(l)6A.1.2d.(1)CON-16A.1.2d.(2)CON-16A.1.2e.CQN-16.4.1.2b.(2)CQN-1
HUMANENGINEERINGCHECKLIST22CONTROLSEVAI.UATIONGUIDELINEKVAI.UATIOIIIGUIDBIIEREF.Whenaguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.6.4.1.2c.(3)CON-1126.IDisplacementforlegendpush-buttonsisaminimumof0inch(touchplate)minimum0.125inch(allothers)andamaxi-,mumof0.250inch.6A.3.3e.(2)CQN-56I120.II121.IQnmoveablecoversorguards,safetyorlockwiresarenotusedoRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.6A.1.2c.(2)CON-136A.1.2g>>CQN-1Visibility128.Transilluminatednumeralsandlettersdonotvaryinengravingdepthonlegendpushbuttons.127.Thecontrolcolorcontrastswiththepanelbackground.6A.2.2f.(3)CQN-3VD-103Apositiveindicationispro-videdintheformofasnapfeel,anaudiblecheck,oranintegrallightforpushbuttons.122.WhensequentialactivationisQnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.4Direction/RateofMotion123;Controlmovementconformstopopulationstereotypes(seetableinback).Feedback124.I6.4.1.2f.CQN-146.4.2.1+CON-116A.3.1b.CON-53129.ControlpositioninformationisSvisibletotheoperatorduringcontroloperation.Maintenance130.Controlsurfaceshavenot(Rbeenailowedtobreak,chiporcrumble.6.6.3.'8Co6A.1.1e-(1)125.PushbuttondisplacementforIthumborfingeroperatipnisa~~minimumof0.125inch.h6.4.3.2CoCON-50 HUMANENGtNEERfIGCHFCKklST23CONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEHANDCRANKOperationsD1-Controlseparationwillcon-PPformtheTable6.8-2and6.8-3.Coding/Identification132.Eachcontrolwillberecog-Inizableintermsofitsfunction.Alldiscretefunctionalcontrol~~~~positionswillbeidentified.134.Whencolorcodingisusedtorelateacontroltoitscor.-respondingdisplay,thesamecolorwillbeusedforboththecontrolandthedisplay.Size,Shape,Design135.Selectedcontrolsmakebest~~~useofspacefortheintendedpurposeandrequirementsforactivation.136.HandCrankswitchesconform/Etothedimensionsinthefigureontheback.6.8.3.16.4.1.1c.(1)6.6.3.8aOPA-28PA-456.4.2.2f.(2)CQN-26.4.1.1b.(4)CQN-1137.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandQorientedsothattheopera-tordoesnotstrikeormorethemaccidentallyinanysequenceofcontrolmove-ments.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.ControlsarecoveredorfPguardedwithmovablebarriers.d.ControlsareprovidedwithIinterlockssothatextramovementisrequired.e.ControlsareprovidedwithIinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.ControlsareprovidedwithQresistancesothatdistinctorsustainedeffortisrequiredforactivation.138.Ifcontrolsareshielded,recessed,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.6.4.1.2aOCQN-16.4.1.2b.(1)CQN-164.1.2c.(1)6.4.1.2d.(1)'QN-16.4.1.2d.(2)CQN-164.1.2e.CQN-16.4.1.2b.(2)CON-1 ..HUMANEmolNEERIIGCHECKLlST24CONTROLSEVALUATIONGUIOELIIIIEEVALUATIONGUIDELINE139.Whenaguardisintheopen~~position,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-'entcontrols.'I140.Onmoveablecoversorguards,safetyorlockwiresarenotused.64.1.2c.(3)CON-16.4.1.2c.(2)CON-1146.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.Maintenance147.Controlsurfaceshavenotgbeenallowedtobreak,chiporcrumble.6.6.3.8Co6.4.1.1e.(1)141.QRotaryactionco'ntrolsareusedwhenlinearorpushbuttoncontrolwouldbesubjecttoinadvertentoperationandfixedprotectivestruc'turesareimpracticalorinappropriate.6.4.1.2goCON-1142.IWhensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.64.1.2f.CON-1Direction/RateofMotion143.Controlmovementsconformtopopulationstereotypes(seetableinback).144.Directionofmotionisidenti-fiedforcontinuousmotionrotarycontrols.64.2.1CON-1'.6.3.8b.PA-32Visibility145.Thecontrolcolorcontrastswiththepanelbackground.6.4.2;2f.(3)CON-3 HUMANENGINEERlmoCHECKklST25CONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELIItlECoding/Identification149.N150.Eachcontrolisrecognizableintermsofitsfunction.Alldiscretefunctionalcontrolpositionsareidentified.151.NWhencolorcodingisusedto.relateacontroltoitscor-respondingdisplay,thesamecolorwillbeusedforboththecontrolandthedisplay.Size,Shape,Design152.fPSelectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.HANDWHEELSArrangement148.Controlseparationconforms$EtoTable6.8-2and6.8-3.6.8.3.164.1.1c.(1)6.6.3.8aOPA-28PA-456.4.2.2f.(2)CON-264.1.1b.(4)Operationsb.Controlsshielded,roundedbarriers.c.Controlsguardedbarriers.arerecessed,orotherwisesur-'yphysicalarecoveredorwithmovabled.Controlsareprovidedwit:hSinterlockssothatextramovementisrequired.e.ControlsareprovidedwithNinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.ControlsareprovidedwithNresistancesothatdistinctorsustainedeffortisrequiredforactivation.154.Ifcontrolsarerecessed,shielded,or"otherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.'53.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandQorientedsothattheopera-tordoesnotstrikeormorethemaccidentallyinanysequenceofcont:rolmove-ments.6.4.1.2aOCON-16.4.1.2b.(1)CON-164.1.2c.(1)64.1.2d.(1)CON-16.4.1.2d.(2)CON-16.4.1.2e.CON-16.4.1.2b.(2)CON-1 HUMANEMGIIEERlMGCHECKi.1ST26CONTROLSEVAf.UATlONGUtDELlIEEYALUATtONGUIDEUNEREF./155.Whenaguardisintheopen~~position,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.6A.1.2c.(3)CON-1Visibility162.Thecontrolcolorcontrastswiththepanelbackground.6A.2.2f.(r)CQN-3156.Onmoveablecoversorguards,safetyorlockwireswillnotbeused.6A.1.2c.(2)CON-I163.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.6.6.3.8Ce157.I158.IRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.Whensequentialactivationisnecessary,controlsarepro-videdwithlackstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.6A.1.2geCQN-16A.1.2f.CON-1Maintenance164.ControlsurfaceshavenotIbeenallowedtobreak,chiporcrumble.6.4.1.1.e.(1)Direction/RateofMotion159.Controlmovementsconformtopopulationstereotypes(see~~~~tableinback)..160.Direction.ofmotionisidenti-fiedforcontinuousmotionrotarycontrols.6A.2.1CQN-16.6.3.8b.PA-32Resistance,Force,Torque161.8Thishandwheel'srimispro-videdwithcontouredmoldingandhasahighdegreeoffrictionalresistance.CQN-11 HUMANEMGfNEER)MGCHECKLlST27CONTROLSEVALUATIONGUIDELINEREI:.EVALUATIONGUIDELINEREF.DISCRETEROTARY-GENERALArrangement165.ControlseparationconformstoTable6.8-2and6.8-3.Coding/Identification166.EachcontrolisrecognizableinQtermsofitsfunction.167.Alldiscretefunctionalcontrolpositionsareidentified.~~~~~8.Whencolorcodingisusedto~elrelateacontroltoitscor-respondingdisplay,thesamecolorwillbeusedforboththecontrolandthedisplay.169.Shapecodingtechniquesare8visuallyandtactuallyidenti-fiableandfreeofsharpedges.Size,Shape,Design170.Selectedcontrolsmakebest~~useofspacefortheintendedpurposeandrequirementsforactivation.6.8.3.1~6A.l.lc.(1)6.6.3.8aO6A.2.2f.(2)CQN-26A.1.1b.(4)'perations171.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandQorientedsothattheopera-tordoesnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ment.b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.Controlsarecoveredorguardedwithmovablebarriers.d.ControlsareprovidedwithQinterlockssothatextramovementisrequired.e.Controlsareprovidedwith(Rinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.ControlsareprovidedwithQresistancesothatdistinctorsustainedeffortisrequiredforactivation.172.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.6A.1.2aOCQN-16A.1.2b.(1)CQN-16.4.1.2c.(l)6.4.1.2d.(i)CQN-I6.4.1.2d.(2)CQN-16.4.1.2e.CQN-16A.1.2b.(2)CQN-1
HUMANEMGlIEERIIGCHECKLIST28CONTROLSEVAI.UATIONGUIGEI.IIIIEREF.EVALUATIONGUIDEI.IIE173.Whentheguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.6.4.1.2c.(3)CON-1180.Thecontrolcolorcontrastswiththepanelbackground.Maintenance6A.2.2f.(3)CON-3174.Onmoveablecoversorguards,safetyorlockwiresarenotused.6A.1.2c.(2)CQN-1181.ControlsurfaceshavenotIbeenallowedtobreak,chiporcrumble.6A.l.le.(1)175.IRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.176.IWhensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.Direction/RateofMotion177.Controlmovementsconformtopopulationstereotypes(seetableinback).L78.Rotarycontrolsettingsincreaseinvaluewithaclock-wiserotation.Visibility179.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.6A.1.2geCON-16A.1.2f.CON-16A.2.1CON-16.4A.laOCON-26.6.3;8CeDISCRETEROTARY-STARHANDLESDISCRETEROTARY-ROTARYSELECTORSize,Shape,Design182.Rotaryselectorswitchlengthisaminimumof1.0inchandamaximumof4.0inches.183.Rotaryselectorswitchwidthisamaximumof1.0inch.184.Rotaryselectorswitchdiam-eterisaminimumof1.0inch.185.Rotaryselectorswitchdepth$Pisaminimumof0.625inchandamaximumof3.0inches.h186.Controlshaveamovingpointerandfixedpositionsettings.6.4.4.5e.(1)CQN<<36.4.4.5e.(2)CON-36A.4.5e.(3)6AA.5e.(4)CQN-6AA.5ceCQN-HUMANENGlNEERlNGCHECKLlST29CONTROLSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.187.Thisrotarycontrolisprovided~~~withareferencelineonthepointer.Thislinehas50%minimumcontrastwiththecontrolcoverunderalllightingconditions.188.Positionindicationisprovidedbyeitherilluminatedindicatorlights,alineengravedbothonthetopoftheknobanddowntheside,orapointershape.189.Thepositionoftheknobinreferencetopositionmarkersdoesnotresultinconfusion.Tominimizetheproblemofparallax,pointersonknobswillbemountedclosetothesettingstowhichtheypoint.190.Rotaryselectorcontrolsareusedwhenthereare3ormoredetendedpositionsrequired,andmaybeusedfor2-detentedpositionoperation.CQN-26A.4.5d.(i)6.4.4.5d(2)++CON-26AA.5a.+CON-3Resistance,Force,Torque194.Detentsareprovidedateachmcontrolposition.DISCRETEROTARY-J-HANDLESize,Shape,Design195.J-handleclearanceisbetween1and2inches.196.Wheresmaller3-handlesareused,thehandlepreportionhasaflattenedorflaredtipforfingerplacement,andtheclearancebetweenhandleandpanelsurfacecanbeless.197.J-handlelengthisbetween1and2inches.6A.4.5b.(i)CQN-36AA.2a(2)CON-46.4.4.2b.6A.4.2a.(i)CON-41.Itisnotbepossibletopositionacontrolbetweendetentedpositions.6A.4.5b.(2)CON-3192.Amaximumof24positionsisused.6.4A.5b.(3)CON-3193.StopsareprovidedattheQlimitsofthecontrolrange.6.4.4.5b.(4)CON-3 00 HUMANENGlNEERlmoCHECKUST30CONITROLSEVAl.UATlOIGUIDEl.lNEREF.EVAl.UATlONGUIDEl.lNEREF.Arrangement~98-Controlseparationconforms~$PtoTable6.8-2and6.8-3.Coding/Identification199.EachcontrolisrecognizableinQtermsofitsfunction.200.Controlpositionsarelabeledonkey-operatedswitches.201.Directionofmotionisidenti-fiedforkey-operatedswitches.202.WhencolorcodingisusedtofRrelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.Size,Shape,Design203.Selectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.204.Keyswithasinglerowofteethareinsertedintothelockwiththeteethpointinguporforward.6.8.3.16A.1.1c.(1)6A.4.3f.CQN-46.6.3.8aOPA-28PA-496.6.3.8b.PA-326A.2.2f.(2)CON-26.4.1.1b.(4)6.4A.3b.CON-4207.IKey-operatedcontrolsareusedsolelywhensystemrequirementsdictatethatthefunctionbeingcontrolledshouldbesecuredagainstacti-vationbyunauthorizedper-,sonnel.Operations208.LocksareorientedsothattheswitchisOFF(orSAFE)whenthekeyisintheverticalposition.209.IOperatorsnormallyarenotabletoremovethekeyfromthelockunlesstheswitchisturnedtotheOFForSAFEposition.210.Theangulardisplacementisaminimumof80oandamaxi-mumof90o.211.IWhensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.205.Ifkeyshaveteethonbothedges,theyfitthelockwitheithersideuporforward.206.Theheightofkeyininchesisaminimumof0.5andamaxi-mumof3.0.6AA.3CoCON-46A.4.3g.(2)CQN-46.4A.3ao6.4A.3d.CQN-46.4.4.3e.CQN-46A.4.3g.(1)CQN-46.4.1.2f.CQN-10 e HUMANENGINEERINGCHECKLIST31CONTROLSEVALUATlOlblGUIDELINEREF.EVALUATlOIGUIDELlltlEDirection/RateofMotionControlmovementsconformtopopulationstereotypes(seetableinback).213.Controlsettingsincrea'seinvaluewithaclockwiserotation.Visibility214.Thecontrolcolorconstrastswiththepaneibackground.6.4.2.1+CQN-16.4.4.1aOCON-26.4.2.2f.(3)CQN-3CKNOBSArrangement217.ControlseparationconformstoTable6.8-2and6.8-3.Coding/Identification218.EachcontrolisrecognizableinItermsofitsfunction.219.Alldiscretefunctionalcontrolpositionsareidentified.6.8.3.164.1.1c.(l)6.6.3.8aOc3.5.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.Maintenance6.6.3.8co220.IWhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecon-trolandthedisplay.6.4.2.2f.(2)CQN-2216.ControlsurfaceshavenotQbeenallowedtobreak,chiporcrumble.6.4.1.1e.(1)Size,Shape,Design221.Selectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.64.1.1b.(4)Operations222.Accidentalactivationofcon-trolsisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandQorientedsothattheopera-torwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ment.64.1.2aoCQN-1
HUMANENGlIEERlNGCHECKLlST32EVALUATlONGUlDELlIEREF.EVALUATlGIGUIDELlIEb.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c-Controlsarecoveredorguardedwiththemovablebarrier.d.Controlsareprovidedwithinterlockssothatextramovementisrequired.e.ControlsareprovidedwithfRinterlockssothatprioroperationofarelatedorlockingcontrolisrequired.f.ControlsareprovidedwithIresistancesothatdistinctorsustainedeffortisrequiredforactivation.223.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentireiycontainedwithintheenvelopedescribedbytherecessorbarrier.Whenaguardisintheopenposition,itdoesnotinterfer'ewiththeoperationoftheguardedcontrolorotheradja-centcontrols.6A.1.2b.(i)CON-16A.1.2c.(i)CON-I6A.1.2d.(1)CON-16A.1.2d.(2)CQN>>16A.1.2e.CON-16A.1.2b.(2)CON-16A.1.2c.(V)CQN-1226.I227.IRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldbesubjecttoinadvertent'operationandfixedprotectivestructuresareimpracticalorinappropriate.Whensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontroiaction.Direction/RateofMotion22S.Controlmovementconformstopopulationstereotypes(seetableinback).229.Controlsettingsincreaseinvaluewithaclockwiserotation.230.Directionofmotionisidenti-fiedforcontinuousmotionrotarycontrols.Visibility231.Thecontrolcolorcontrastswiththepanelbackground.6A.1.2goCQN-16A.1.2f.CON-16.4.2.1CQN-16AA.1aOCON-26.6.3.8b.6A.2.2f.(~)CQN-3225.Onmoveablecoversorguards,fPsafetyorlockwireswillnotbeused.6.4.1.2c.(2)CON-'1232.ControlpositioninformationisIvisibletotheoperatorduringcontroloperation.6.6.3.8Co
HUMANEIIIGIIFERIMGCHECKUST33CONTROLSEVALUATlGNGUlOFL1HEREF.EYALUAT10MGUIOELlNEREF.(ALL)Controlsurfaceshavenotbeenallowedtobreak,chipor.crumble.6.4.1.1e.(l)Arrangement234.Controlseparationconforms/EtoTable6.8-2and6.8-3.6.8.3.1Coding/Identification235.EachcontrolisrecognizableinItermsofitsfunction.-6.4.1.1c.(i)'36.IWhencolorcodingisusedtorelateacontroltoitscor-respondingdisplay,thesamecolorisusedforboththecontrolandthedisplay.64.2.2f.(2)CON-2Size,Shape,Design237.fPSelectedcontrolsmakebestuseofspacefortheintendedpurposeandrequirementsforactivation.6.4'.l.lb.(4)238.Knobsforcontinuousadjust-mentcontrolsareround<nshape,withknurledorserratededges.6.44.4aOCON-3239.Fingertipgraspknobsconformtothefollowingdimensions:height(inches)minimum0.5andmaximum1.0;diameter(inches)minimum0.375andmaximum4.0.64.4.4c.(l)CON-3 HUMAINFITGtNEERIMGCHECKklST34CONTROLSEVALUAT10NGUIDE1.IIEEVALUAT10IGU10EL1MEREF.240.ThumbandforefingerfP'ncircledknobsconformto~~~~~~thefollowingdimensions:diameter(inches)minimum1.0andmaximum3.0.241.Controlsusedwithknobskirts7Phaveaminimumskirtdiameterof2.0inches.242.Controlsusedwithknobskirtshaveaminimumskirtheightof0.25inch.243.Controlsusedwithknobskirts'haveaminimumfingerstopdiameterof1.25inches.244.Controlsusedwithknobskirts$Phavefingerstopheightplusrotaryknobheightofatotalminimumof0.75inch.245.Whencontrolsareusedwith8knobskirts,minimumknobdiameteris0.75inch.Operations6.Accidentalactivationofcon-troisisminimizedbyoneormoreofthefollowingmethods(checkthosewhichapply):a.ControlsarelocatedandIorientedsothattheopera-torwillnotstrikeormovethemaccidentallyinanysequenceofcontrolmove-ments.6.4AAc.(2)CON-36.4.4.4e.(i)CON-26.4.4Ae.(2)>>CON-26AA.4e.(3)>>CON-26AAAe.(4)CON-26A.4Ae,(5)>>CON-26.4.1.280CQN-1b.Controlsarerecessed,shielded,orotherwisesur-roundedbyphysicalbarriers.c.Controlsarecoveredorguardedwithmovablebarriers.dControlsareprovidedwith(Rinterlockssothatextra'ovementisrequired.e.ControlsareprovidedwithIinterlockssothatprioroperationofarelatedorlockingcontrolisrequired..f.ControlsareprovidedwithQresistancesothatdistinctorsustainedeffortisrequiredforactivation.248.IWhenaguardisintheopenposition,itdoesnotinterferewiththeoperationoftheguardedcontrolorotheradja-centcontrols.249.Qnmoveablecoversorguards,safetyorlockwiresarenotused.247.Ifcontrolsarerecessed,shielded,orotherwiseguarded,thecontrolisentirelycontainedwithintheenvelopedescribedbytherecessorbarrier.6.4.1.2b.(1)CON-16A.1.2c.(1)6A.1.2d.(1)CON-16A.1.2d.(2)CQN-16A.1..2e.CON-16A.1.2b.(2)CON-16.4.1.2c.(3)CQN-16A.1.2c.(2)CON-1AHRT'PV%'Elhir'Th&'TA% HUMANENGINEERINGCHECKLISTCONTRQLSsvaL,uaVio~Gu~oE<is~EVALUATlONGUIDE1.IIII'EF.250.I251.(RRotaryactioncontrolsareusedwhenlinearorpushbuttoncontrolswouldhesubjecttoinadvertentoperationandfixedprotectivestructuresareimpracticalorinappropriate.Whensequentialactivationisnecessary,controlsarepro-videdwithlockstopreventcontrolsfrompassingthroughaposition.Furthermovementrequiresanewcontrolaction.6A.1.2geCON-16A.1.2f.CON-1Readability257.Whenanindicationofpositonisdesirable,pointersconformtothoseinguideline.Whenmoreaccuracyisrequired,alineisengravedonthetopandsideofpointer.Maintenance258.ControlsurfaceshavenotIbeenallowedtobreak,chiporcrumble.6.4A.4b.CON-406A.1.1e.(1)Direction/RateofMotiont~2.Controlmovementsconformtopopulationstereotypes(seetableinhack).6A.2.1CON-1253.Rotarycontrolsettingsincreaseinvaluewithaclock-wiserotation.6A.4.1aOCON-2254.Directionofmotionisidenti-fiedforcontinuousmotionrotarycontrols.6.6.3.8b.PA-32Yisihility5.Thecontrolcolorcontrasts~~withthepanelbackground.6A.2.2f.o).CON-3256.ControlpositioninformationisQvisibletotheoperatorduringcontroloperation.6.6.3.SCoON-SITEEVALUATION8OPERATORASSISVPn~un.v.<~r~~r~. HUMANEmolNEERINGCHECKl.lST36DISPLAYSEVALUATlOMGUIDELlMEREF.EVALUATlOMGUlDELIMEding/Identification1.Componentrepresentationsonmimiclinesareidentified.2.Allmimicoriginpointsarelabeledorbeginatlabeledcomponents..Allmimicdestinationorter-minalpointsarelabeledorendatlabeledcomponents.4.Flowdirectionsareclearlyindicatedbydistinctivearrow-he'ads.Visibility5.Thereisadequatecontrastbetweenthemimiccolorsandthepanel.ReadabilityNomorethan4mimiclinesofthesamecolorruninparalleliftheoperatormustquicklyidentifythem.6.6.6.4b.(6)PA-656.6.6.4b.(4)PA-646.6.6.4b.(5)PA-646.6.6.4b.(i)PA-646.6.64a.(3)6.6.6.4a.(5)PA-65COUNTERSArrangement8.Countersareconstructedandarrangedtominimizereflectionofambientillumi-nationfromthedisplaycover.Location9.Theviewingdistancetocountersisatleast13inchesandpreferablyatleast20inches.Operations10.Numberschangebysnapactionratherthancontinuousmovement.Thiscounterusedtoindicatethesequenceofequipmentautomaticallyresetsuponcompletionofthesequence.Direction/RateofMotion12.Counterdrumsmoveupwardwithincreasingvaiues.VD-23VD-246.5.5.1c.(1)VD-82VD-836.5.5.1c.(2)VD-827.Overlappingofmimiclinesisavoided.6.6.6.4b.(2)13.Forcounters,oneknobrevo-lutionequalsabout50counts(therighthanddrumrotates5times).VD-82CDI-5 HUMANENGINEERINGCHECKLIST37DISPLAYSEVALUATlONGUIDELlIEREF.EVALUATlGNGUIDELINEReadabilityt4.Multi-digitnumbersarereadhorizontallyfromlefttoright.15.Windowsizepermitsonlyonedigittoappearatanyonetime.16.Ifmorethan4digitsareused,groupingofdigitsseparatedbyappropriatecommas,decimalpoints,orspaceswillbeused.6.5.5.1a.(i)VD-836.5.5.1b.(3)VD-836.5.5.1a.(3)VD-8322.Numeralsintendedtobereadconsecutivelydonotfolloweachotherfasterthantwopersecond.Readability23.Multi-digitnumberswillbereadhorizontallyfromlefttoright.24.Validmessagesonthedisplayfacearebrief.6.5.5.2b.6.5.5.2a.(1)6.5.14Coe7.Countersaremountedper-pendiculartolineofsight.18.Countersaremountedclosetopanelsurface.6.5.5.1b.(1)VD-826.5.5.1b.(2)VD-8225.NDisplaysindicatevaluesinaformimmediatelyusablebytheoperatorwithoutrequiringmentalconversion.Valuesmay,however,bemultipliedordividedbyapoweroften.6.5.1.2b.and6.5.1.4f.VD-620.Validmessagesonthedisplaysfacewillbebrief.19.Surfaceofdrumandsur-IIroundingshavemattefinishtominimizeglare.6.5.5.1a.(5)VD-846.5.1.4CoPA-55LEGENDLIGHTSOperations26.Statusisinferredbyillumi-Inatedindicatorsandneverbyabsenceofillumination.6.5.3.1c.(1)VD-8921.QDisplaysindicatevaluesinaformimmediatelyusablebytheoperatorwithoutrequiringmentalconversion.Valuesmay,however,bemultipliedordividedbyapoweroften.6.5.1.2b.and6.5.1.4f.VD-6.27.IndicatorlightsarenotusedtoIalertoperatorstounfavorablestatus.6.5.3.1d.PROJECTION-ELECTRONICCOUNHERSirection/RateofMotion HUMANENGIIIIEER)IGCHECK(.)ST38DISPLAYSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.Visibilityt8-Forlegendpushbuttonsusedalundervariedambientlighting,.adimmingcontrolisprovidedthatpermitsdisplaylegibilityunderallambientlightingcon-ditions.29.CircuitryisdesigntotestIoperationoftotalindicatorcircuit.30.Controlroomcontainsonly~~~minimumnumbers'f'ightsrequired.VD-90VD-92VD-94IMPACTRECORDERSCoding/Identification34.IWhenreadingsmustbemulti-pliedordividedbyapoweroften,thecomponentisclearlymarkedastowhetherthereadingshouldbemultipliedordivided,andwhatthefactorisoSize,Shape,Design35.Movingscalefixed-pointermetersarenotused.6.5.1.2e.6.5.2.5PA-41PA-62INDICATORLIGHTSLocation36.AselectionoflowpaperIspeedsandahighpaperspeedisavailable.6.5A.l.I~31.IChangescriticaltosafetyoreffectivenesshaveahighpriorityintheoperator'scen-tralfieldofviewandcontainstimulidemandinghighattention.erationsVD-837.ltisconvenienttoannotateQinformationontherecordings.Meansareprovidedtoreceivecompletedrecordingsandfortearingoffrecordsforstorage.6.5.4.1jeVD-796.5A.1d.VD-78VD-7932.Statusisinferredbyillumi-Inatedindicatorsandneverbyabsenceofillumination.IndicatorlightsarenotusedtoIalertoperatorstounfavorablestatus.6.5.3.1c.(1)VD-896.5.3.1d.Operations39.Thenumberofchannelsdoesnotexceedcapacity.40.Achannelisselectedfordis-Iplaywithout;awaitingcom-pletionofsamplingcycle.6.5.4.2b.(1)6.5A.2b.(4)
HUMAINEIIIGINEERlNGCHECKllST39DISPLAYSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEReadabilityPrintednumbersonrecordingareclear,sharpandsmallenoughtoavoiddatacrowding.42.fEChannelsareeasilyviewedondisplayandinstrument.Numeralsonfixedscalemetersarevertical.43.Allrecordeddataisvisiblethroughthewindow.6.5A.2b.(3),6.5.4.2'b.(2)6.5.4.1k.VD-806.5.2.4aOVD-6551.Pointer/backgroundcontrastandpointersizeprovidegoodindicationofpointerposition.52.IDisplaysindicatevaluesinaformimmediatelyusablebytheoperatorwithoutrequiringmentalconversion.Valuesmay,however,bemultipliedordividedbyapoweroften.53.Zonemarkingsareconspicuousanddistinctivelydifferentfordifferentzones.54.Zonemarkingsdonotinter-IRferewithdisplayreading.6.5.2.2Co6.5.1.2'.'and6.5.1Af.VD-66.5.2.3aO6.5.2.3b.45.Validmessagesonthedisplayfacearebrief.6.5.1ACoPA-55Scaling46.Singlepointerwithmultiplescalesarenotused.6.5.1.5f.VD-6955.Scalesonpapercorrespondto8scalesshownonrecorder.6.5A.1b.47.48.49.gpPointertipsaresimple.Examplesareshowninthefigure.Pointertipsdonotconcealscalegraduationmarksornumerals.Pointertipextendstowithinabout1/16inchof(butdoesnotoverlap)thesmallestgrad-uationmarks.Pointersaremountedtoavoidparallaxproblems.6.5.2.2a.(i)VD-706.5.2.2a.'(2)VD-706.5.2.2b.(1)-VD-706.5.2.2b.(2)VD-7056.Nomorethan9graduationsseparatenumeralsinthescalemarkings.57.Majorandminorgraduationsare,usedifuptofourgradua-tionsareusedbetweennumerals.58.Major,intermediateandminorgraduationsareusedif5ormoregraduationsareusedbetweennumerals.6.5.1.5a.(1)VD-636.5.1.5a.(2)6.5.1.5a.(3) HUMANEMGINEFRIMGCHECKLIST40DISPLAYSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELIItIE59.Graduationheightforscalemarkingsconformtofigure.~~60.Successivevaluesofunitgrad-uationsconformtofigureorthosevaluesmultipliedbypowersoften.61.Scalevaluesincreasewithmovementofthepointerupward,clockwise,ortotheright.62.Logarithmicscalesforscalemarkingsarenotusedexceptwherealargerangeofvaluesarerequired.6.5.1.5b.VD-326.5.1.5c>>VD-716.5.2.1a>>b>>c>>VD-65VD-676.5.1.5e.VD-6367.68.69.$PPrintedinformationonthistrendrecorderiscompre-hensibleandminimizesneedfordecoding,interpolating,etc.Aidsareprovidedwhenoperatormustinterpretgraphicdata.Ifmultiplescalesappearonthistrendrecorder,colorcodingisusedt:oassociatecorrectscalewithcorrectselector-switchposition.Ameansisprovidedtoreceivecompletedrecordingsandfortearingoffrecordsforstorage.VD-78VD-696.5.4.1d.VD-78VD-79STRIPCHARTSCoding/Identification63.Chartpaperiswhite,thegraphlinesblack,andpentracingredorgreen.Size,Shape,Design4.Movingscalesfixed-pointermetersarenotused.66.ItisconvenienttoannotateQinformationontherecordings.65.Aselectionoflowpapermspeedsandahighpaperspeedareavailable.VD-806.5.2.5PA-41PA-626.5.4.1I~6.5.4.1VD-7972.Printerpapermovesfrombottomtotop.73.Thenumericalprogressiononthistrendrecorderincreasesclockwise,fromlefttorightorfromthebottomup,dependingondisplaydesignororientation.Direction/RateofMotion70.Pensforthissinglesheetchartsystemmovefromlefttoright.71.Movingchartsystempapermovesfromrighttoleft.VD-80VD-80VD-80VD-65ON-STTF,F.V>7.UA'PTERaAPFRA'PO HUMANENGIIIIEERlMGCHECKl.lSTDISPLAYSEYALUATlONGUIOELlNEREF.EYALUATlONGUlDELlNEREF.Allrecordeddataarevisiblethroughthewindow.6.5.4.1k.VD-8083.Theprinterincorporatesinter-nalilluminationtoenhancereadabilityofprintedmaterialunderinadequateambientillumination.VD-7975.Numeralsonfixedscalemetersarevertical.76.Validmessagesonthedisplayfacearebrief.6.5.2.4a4VD-656.5.14CoPA-5584.QDisplaysindicatevaluesinaformimmediatelyusablebytheoperatorwithoutrequiringmental,conversion.Valuesmay,however,bemultipliedordividedbyapoweroften.6.5.1.2b.and6.5.1.4f.VD-6g7.78.Singlepointerwithmultiplescalesarenotused.Pointertipsaresimple.Examplesareshowninthefigure.6.5.1.5f.VD-696.5.2.2a.(1)VD-7085.Zonemarkingsareconspicuousanddistinctivelydifferentfordifferentzones.86.Zonemarkingsdonotinter-Qferewithdisplayreading.Scaling6.5.2.3aO6.5.2.3b.79.80.ye81.82.Pointertipsdonotconcealscalegraduationmarksornumerals.Pointertipextendstowithinabout1/16inchof(butdoesnotoverlap)thesmallestgrad-uationmarks.Pointersaremountedtoavoidparallaxproblems.Pointer/backgroundcontrastandpointersizeprovidegoodindicationofpointerposition.6.5.2.2a.(2)VD-706.5.2.2b.(1)VD-706.5.2.2b.(2)VD-706.5.2.2ci87.Scaleonpapercorrespondstoscalesshownonrecorder.88.Nomorethan9graduationsseparatenumeralsinthescalemarkings.89,Majorandminorgraduationsareusedifupto4graduationsareusedbetweennumerals.90;Major,intermediateandminorgraduationsareusedif5ormoregraduationsareusedbetweennumerals.91.Graduationheightforscalemarkingsconformtofigure.6.5.4.1b.6.5.1.5a.(i)VD-636.5.1.5a.(2)6.5.1.5a.(3)'.5.1.5b.VD-32 HUMANENGINEERfloCHECKLISTDISPLAYSEVALUATIONGUIOEI.INEREF.EVALUATIONGUIDELINEREF.92.Successivevaluesofunitgrad-uationsconformtofigureorthosevaluesmultipliedbypowersof10.93.(RLogarithmicscalesforscalemarkingsarenotusedexceptwherealargerangeofvaluesarerequired.METERSLocationCoding/Identification95.Whenreadingsmustbemulti-Qpliedordividedbyapoweroften,thecomponentisclearlymarkedastowhetherthereadingshouldbemultipliedordivided,andwhatthefactorisoSize,Shape,Design~~~96.Movingscalesfixed-pointer$Pmetersarenotused.94.Pointersarelocatedtothetrightofverticalscalesandatthebottomofhorizontalscales.6.5.1.5CoVD-716.5.1.5e.VD-63VD-676.5.1.2e.6.5.2.5PA-41PA-6297.Linearscalesareusedinpreferencetononlinearscales.Nonlinearscalesareusedtocondensealargerangeintoasmallspaceforsensitivereadingsatcriticalrangesofthescale.98.Thismeter'sscaleindicatorsareusedtodisplayquanti-tativeandqualitativeinfor-mation(suchastrendanddirection-of-motion).99.IRForthismovingscaledisplay,ifthecontrolisagrossapproximatorofpositionandhaspositiondetents,thenumbersincreasefromrighttoleft.Operations100.Thepointercoloristhesameasthatofnumbersandindices.Direction/RateofMotion101.Thescaleindicatorsforvariousapplicationsarebasedonthecriteriaintableontheback.VD-61VD-62PA-41VD-70VD-62102.5EScalevaluesincreasewithmovementofthepointerup-ward,clockwiseortotheright.6.5.2.1a.b.c.VD-67VD-65.tON-SZTEEVALUATZONQOPERATORASS'USTEDEVALUATION HUMANEmolIEERIMGCHECKLlST43DISPLAYSEVALUATIONGUIDELIIIIEREF.EVALUATIONGUIDEUNEREF.103.SEForknobsusedtomakecoarsedisplayelementsettings(0.016to0.100inchtolerance),onecompleteknobturnresultsinapproximately6inchesofdis-playelementmovement.104.$PReadabilityForknobsusedtomakefinedisplaysettings(0.007to0.015inchtolerance),onecompleteknobturnresultsinapproxi-mately1-2inchesofdisplayelementmovement.CDI-5CDI-5ill.Pointerismountedtoavoidparallaxproblems.112.Pointer/backgroundcontrastandpointersizeprovidegoodindicationofpointerposition.Displaysindicatevaluesinaformimmediatelyusablebytheoperatorwithoutrequiring.mentalconversion.Valuesmay,however,bemultipliedordividedbyapoweroften.6.5.2.2b.(2)VD-70l6.5.2.2Co6.5.1.2b.and6.5.1.4f.VD-6eNumeralsonfixedscalemeterswillbevertical.6.5.24aOVD-65114.'onemarkingsareconspicuousanddistinctivelydifferentfordifferentzones.6.5.2.3aO106.Validmessagesonthedisplayfacearebrief.107.Singlepointerwithmultiple$Pscalesarenotused.108.Pointertipsaresimple.Examplesareshowninthefigure.109.Pointertipsdonotconcealscalegraduationmarksornumerals.110.Pointertipextendstowithinabout1/16inchof(butdoesnotoverlap)thesmallestgrad-uationmarks.6.5.1.4CoPA-556.5.1.5f.VD-696.5.2.2a.(i)VD-706.5.2.2a.(2)VD-706.5.2.2b.(1)VD-70115.Zonemarkingsdonotinter-Iferewithdisplayreading.Scaling116.Nomorethan9graduationsseparatenumeralsinthescalemarkings.117.Majorandminorgraduationsareusedifupto4graduationsareusedbetweennumerals.118.Major,intermediateandminorgraduationsareusedif5ormoregraduationsareusedbetweennumerals.119.Graduationheightforscalemarkingsconformtofigure.6.5.2.3b.6.5.1.5a.(1)VD-636.5.1.5a.(2)6.5.1.5a.(i)6.5.1.5b.VD-32ON-SETEEVALUATION8OPERATORASSXSTEDEVALUATION HUMANEIGINEERIMGCHECKLISTDISPLAYSEVALUATlONGUIDELINEEYALUAT)ONGUlDEElNE,120.Successivevaluesofunitgrad-uationsconformtofigureorthosevaluesmultipliedby'owersof10.6.5.1.5CoVD-71127.Ifthiscircularmeterdialistobescannedrapidly,thenormalpositionofthepointerisatthe9o'lockposition.121.QLogarithmicscalesforscalemarkingsarenotusedexceptwherealargerangeofvaluesarerequired.6.5.1.5e.VD-63128.IInformationisdisplayedonthismeteronlytothedegreeofspecificityandprecisionrequired'foraspecificopera-toractionordecision.CIRCULARONLYVisibility22.Thetwoendsofthepointer,areidentifiablewhenrecipro-calreadingsarerequired.VD-70Scaling129.Dialscaleonthismeterisorientedsothatthecriticalrangetobereadappearslefttoright.Readability123.Wherepositiveandnegativevaluesaredisplayedaroundazeroposition,thezeroisat12o'lock.6.5.2Ab.(2)VD-66124.Thismeterhasamovingpointeragainstafixedscaleandisusedforqualitativecheckreadings.Ifpointermovementismorethan360o,thezeropointisat12o'lockposition.VD-16.5.2Ab.(i)126.tyWherethescalecoverslessthanafullrotationofthepointer,scaleend-pointsareindicatedbyabreakinscaleofatleastonenumberedintervalandshouldbeoriented6.5.2Ac.(1->)VD-66 HUMANEMGIMEERIMGCHECK1ISTCONVENTIONS+Criteriaaredifferent.EVALUATlONGUIOELlIEREF.EVALUATIONGUIDELlNEREF.AUDITORYCODINGCoding/IdentificationSIZECODINGSize,Shape,Design2.I/E5.Q6.e7.QAuditorycodingmethodsaredistinctandunambiguous,withoutconflict.Auditorypulsecodesarelimitedto2or3,ensuringproperdiscrimination.Centerfrequenciesarebetween500and1000Hzforsignalsusingfrequencymodulationforcoding.Nomorethan5separatefre-quenciesareusedwithinthelimitedrangeof200-5000Hzfordiscretecoding.6.2.2.380AD-16.2.2.3b.AD-196.2.2.3CoAD-146.2.2.3d0AD-15Auditorycodingtechniquesareusedwhentheworkstationassociatedwiththealarmisnotintheprimaryoperatingarea.Codedsignalsfromasingleaudiosourceisnotusedtoidentifyindividualworkstationswithintheprimaryoperatingarea.6.3.2.2a.(1)6.3.2.2a.(2)Codingbyintensityisavoided.6.2.2.3e.9.Nomorethan3differentsizesofcontrolsareusedfordiscriminationbyabsolutesize.10.tiControlsusedforperformingthesamefunctionondifferentitemsofequipmentarethesamesize.12.$jfWhenknobdiameterisusedasacodingparam'eter,dif-ferencesbetweendiametersareatleast0.5inch.Whenknobthicknessisacodingparameter,thicknessdifferencesareatleast0.4inch.14.Controlshapesaretactuallymidentifiable.SHAPECODINGCoding/Identification13.Controlshapesarevisuallyidentifiable.6.4.2.2c.(1)CON-16.4.2.2c.(2)CON-164.2.2c.(3)CON-16.4.2.2c.(4)CON-16.4.2.2d.(1)CON-16.4.2.2d.(2)CON-I8.Codingisusedtoindicatealarmpriority.6.3.2.2b.15.IRotatingknobcontrolsfordif-ferenttypesofcontrolactionsaredistinguishablebysightandtouchandcannotbecon-fusedwitheachother.6.4.2.2e.CON-1 HUMAhlENGINEERINGCHECKllSTCONVENTIONSEVALUATlQIGUIDELINEREF.EVALUAT10IGUIDELlIEREF.16.Shape-codedrotarycontrolsarevisuallyidentifiable.17.Shape-codedrotarycontrolsQaretactuallyidentifiable.Size,Shape,Design18.Annunciator.responsecontrols,especiallythesilencecontrol,useshapecoding.64.4.1c.(1)CON-26.4.4.1c.(2)CON-26.3.4.2b.(4)COLORCODINGCoding/Identificstion23.Colorcodingprovidesredun-Idantinformation.24.The-numberofcolorsforcodingiskepttoaminimum,notexceeding11.6.5.1.6a4CON-16.5.1.6b.(1)a(2)CON-1VD-108CON-2e19.Ifrotarycontrolsusedforwidelydifferentfunctionsareplacedonthesamepanel,shapecodingisemployed.64.4.1b.CON-225.ColormeaningsarenarrowlyQdefined.6.5.1.6c.(1)VD-107CONTROLCODINGCoding/Identification20.ThecodingsystemforcontrolsIisuniformthroughoutthecon-trolroom.6.4.2.2aOCON-126.Red,green,andamberareIusedinaccordancetoguide-line.27.Colormeaningsareconsistentacrossallapplicationsincludingpanelsurfaces,pro-jectedsignallights,andCRTs.6.5.1.6c.(2)VD-1076.5.1.6d.(1)a(2)VD-10722.Annunciatorresponsecontrolsarecodedusingtechniquessuchascolorcoding,demar-cation,shapecodingorgroupshading.1.ColorcodingfollowstherecommendationsofGuideline6.5.1.6.6.4.2.2f.(1)6.3.4.2b.(i)a(2)28.(RColormeaningsremainthesamewithinandamongsys-temstowhichtheyareapplied.Thecolorofindicatorlightsconformstoconvention.29.ColorcodingofmeterzonemarkingsconformtoGuideline6.5.1.6.c.6.5.1.6d.(i)6.5.2.3VD-756.5.3.2a.(2)VD-10ON-SITEEVALUATXON9OPERATORASSISTEDEVALUATION HUMANENGINEERINGCHECKlISTEVAl.UATlONGUIOEl.lNEEVALUATlOMGUlDEi.lIE31.Thecolorofindicatorlightsisclearlyidentifiable.32-Thecoloroflitlegendback-groundconformstocoiorcon-ventions.33'.Colorcodingoflabelprintconformstocolorconventions.34.Thecolorcodingschemeappliedtospecificfunctionsorconditionsisconsistentthroughoutthecontrolroom.35.ColorcodingisconsistentwithIconventions.36.NomorethanonecolorisIassignedforthesamemeaningorpurpose.37.Redisusedforunsafecon-Iditions,danger,immediateoperatorrequired,orcriticalparametervalueoutofbalance.r8-Greenisusedforsafecon-Iditions,nooperatoractionrequired,orparameteriswithinbalance.6.5.3.2a.(3)VD-1086.5.3.3dOVD-1106.6.4.1b.(2)6.6.6.36.7.2.7k.(i)6.7.2.7k.(2)6.7.2.7l.(1)a6.5.1.6c.(2)VD-10I6.7.2.7l.(2)~6.5.1.6c.(2)VD-10Visibility40.Colorshadingenhancesrecognitianofcantrols,dis-playsorfunctionalgroups,providingadequatecontrast,andisconsistentwithothercolorcodingthroughoutthecontrolroom.41.Distinctiveenhancementtech-niquesareusedforemergencycontrols.44.Eachtrendrecorderpenusesadistinctlydifferentcolorforchannelidentificationpro-vidinggoodcontrastwithpaper.45.Wherepossible,thered/greenIcombinationisnotusedinCRTdisplays.42.Colorswhichdonothavetheimmediatesafetyimplicationsareusedtoensurethateachcolorisrecognizedasdifferentfromanyother.43.Colorsusedforcodingprovidegoadcontrastwithback-ground.6.8.1.3coCDI-136.8.1.3d.,6.5.1.6e.(1)6.5.1.6e.(2)VD-1.086.54.2a'.(2)'.7.2.7m.(1)39.QYellow/amberisusedforhazard,potentiallyunsafe,caution,attentionrequired,ormarginalparameterexists.6.7.2;7l.(3)i6.5.1.6c.(2)VD-1046.Redsymbols/charactersonaNgreenCRTbackgroundarenotused.6.7.2.7m.(2) HUMANENGINEERIMGCHECKUST48CONVENTIONSEVALUATIONGUIDELINEREF.EVALUATIOIIIGUIDELINEREF.USEOFSYMBOLSCoding/Identification47.Legendlightsymbolsareclearandunambiguousinmeaning.Abstractsymbolsareusedonlyiftheyhaveacommonlyacceptedmeaningforallintendedusers.6.5.3.3b.{3)6.6.3.4aOPA-56CONFUSIONArrangement55.Stringsofsmalldisplaysdonotexceed20inchesonthecontrolboard.56.Nomorethan5similarcom-ponentsarelaidoutinanunbrokenroworcolumn.6.8.3.2b.6.8.3.2c.(1)49.51.52.QSymbolsaredistinguishablefromeachother.Acommonlyacceptedstandardconfigurationisusedforsymbols.Symbolsareconsistentlyusedwithinandacrosspanels.Graphicsymbolssuchasthoseinmimicsarereadilyunder-stoodandcommonlyused.6.6.3.4b.6.6.3.4Co6.6.34d.6.6.64c.(i)PA-6557.Ifmorethan5similarcom-ponentsmustbetogether.,thestringorclusterisbroken'upbytechniquessuchasphysicalspacingordemarcation.58.Mirror-imagingisavoided.Coding/Identification59.Thegroupofannunciatorcon-trolsaredemarcated.6.8.3.2c.(2)6.8.3.3CDI-166.34.2b.(3)STANDARDABBREVIATIONSANDACRONYMS54.Alistofstandardnames,acronyms,abbreviations,andpart/systemnumbersisconsis-tentlyusedandisadminis-trativelycontrolled.53.Symbolsareusedconsistently.6.6.6.4c.(2)6.6.3.3a.hb.PA-46and6.5.3.3b.(6)PA-4660.I61.62.Legendpushbuttonsarereadilydistinguishablefromlegendlightsandisachievedbydistinctiveshape,labeling,location,orothertechniques.Largematricesofsimilarcomponentshavethecoordi-nateaxeslabeledforidentifi-cationofanysinglecom-ponentwithinthegrid.PLargematricesaresubdividedbyappropriatedemarcation.64.3.3aO6.8.3.2d.(i)6.8.3.2d.(2)ON-SITEEVALUATIONOPERATORASS1STEDEVALUATION HUMANEMGlhlEERIIGCHECKl.lST49EVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.tSize,Shape,DesignD.Legendindicatorsaredis-Qtinguishablefromlegendpush-buttonsbyform,size,.orotherfactors.MIMICSCoding/Identification64.Mimicflowpathsarecolorcodedinconformancewiththeselectedcolorscheme.65.Mimiccolorsarediscriminablydifferentfromeachother.6.5.3.3Co6.6.6.4a.(i)6.6.6.4a(2)Visibility72.8Atorbeloweyelevel,labelsareplacedabovemimicareas(includingbranchesandcom-ponents)theydescribe.(Ifpanelisaboveeyelevel,labelsmaybebelow.)Readability73.Flowdirectionforthismimicisalwaysonthehorizontalorverticalaxis.71.Totalmimiccanbeseenatoperationaldistanceswithoutheadmovement.VD-14PA-45PA-6566.Mimiclinesdepictingflowofthesameconte'ntsarecoloredthesamethroughoutthecon-trolroom.6.6.64a.(4)PA-64LEGENDLIGHTSSize,Shape,Design67.Nomorethan7colorsareusedformimiclines.PA-6474.Legenddesignisconsistentthroughoutthecontrolroom.6.5.3.3b.(i)tss.Summarylinesareseparatesystemsmimiconlabels/demarcationusedtoidentifyandsystemsandsub-surroundingthispanel.PA-64IMPACTRECORDERSCoding/Identification69.Primarymimiclinesareobviouslylargerthansecondarylines.PA-6475.Abbreviationsareconsistentwithplantconventions.6.5.14d.PA-46Size,Shape,Design0.Differentiallinewidthswillbeusedtocodeflowpathsformimics.6.6.6.4b.(i) HUMANENGINEERINGCHECKLIST50BfA1UATlONGtjlOBjMEEVAt.UATlONGUlDB)NEREF.Coding/Identification76.Abbreviationsareconsistentwithplantconventions.6.5.1.4d..PA-46tvtETERSCoding/Identification77-Abbreviationsareconsistent$Pwithplantconventions.6.5.1.4d.PA-46ON-SITEEVALUATIONIsOPERATORASSISTEDEVALUATION HUMANENGINEER)NoCHECKllST51,PROCESSCOMPUTER+Criteriaaredifferent.EVAt.lJATlOIGUIDEUIEREF.EVAI.UATlOIGUlDEl.lNEREF.20CRTsfardisplayingsimplealphanumerictexthaveaminimumof20resolutioneelementsperinch.Symbolsandgraphicdetailhaveaminimumof100resolu-tionelementsperinch.4.Complexsymbolshaveamini-mumof10resolutionelementsforthelongestdimensionofthesymbolwhenusedwithothercomplexshapes.5;Alphanumericcharactershaveaminimumof10resolutionelementspercharacterheight.6.Ifacameragenerateddisplayisused,atleast10shadesofgrayareusedinCRTdisplays.7.Symbolsizeisatleast20minutesofarcatnormalviewingdistance.8.Contrastbetweensymbolsandbackgroundisbetween88%and94%.tCRTDISPLAYSLCumulativeeffectsofallgeo-metricdistortiondoesnotdis-placeanypointwithintheviewablearea'fthescreenfromitscorrectpositionbymorethan5%ofpictureheight.6.7.2.1e+VD-506.7.2.1f.0)"VD-496.7.2.1f.(2)VD-496.7.2.1f.(>)6.7.2.1f.(4)VD-49VD-47VD-45VD-479.10.12.14.15.16.17.Signal-to-noiseratioisatleast10:l.Displayshavinghighregenera-tionratesandslowimagemovementsusephospherswithshortpersistence(decayrateslessthan1millisecond).Displayswithmoderateimagemovementsusemediumper-sistencephosphers(decayrates<0:1second).Wherecharacterssubtendvisualangleoflessthan16,thecharacterseparationisabout25%thesymbolheight.TheregenerationrateforparticularCRTdisplayisabovecriticalfrequencyoffusion.Brightness,contrastandcolorofCRTareadjustablebycon-trolroomoperator.AdjustmentcontrolsonCRTconformtoSection64(Controls)andSection6.9(Control/DisplayIntegration).Alphanumericcharactersarecomposedofuppercaseletterswitharesolutionofnolessthan10linespersymbolheight.Contrastbetweensymbolsandbackgroundisbetween88%and94%.VD-48VD-48VD-48VD-466.7.2.1geVD-496.7.2.1h.(i)6.7.2.1h,(2)VD-45VD-47 HUMAINENGINEERINGCHECKI.ISTPROCESSCOMPUTEREYALUATIONGUlofhINEFVALUATlONGUIDELINEREF.19.Redsymbolsonagreenback-groundareavoided.20.Whereilluminationislow(1.0fL),characterseparationis25%ofthesymbolheight.21.Rectangularorpolar-coordinatedisplaysusealpha-numeric,geometric,orcolorcodingratherthancodingby.linelengths,angularorienta-tion,inclination,orvisualnumber(dots).22.Theuseofbrightnesscodingisavoided.23.OneormoreofthefollowingisusedtoeliminatereflectedglarefromCRT:ProperplacementofCRTinrelationtolightingFilters(directionalorspectrum)AhoodorshieldCoatingsorfiltersoverllghtingeKEYBOARDS24.Eachcontrolisrecognizableintermsofitsfunction.25.Controlmovementsconformtopopulationstereotypes.18.Lightsourceislocatedattleast60ooneithersideofviewer'scentralfieldofview.VD-45VD-48VD-46VD-45VD-47CRE-36.4.1.1c.(1)64.2.1CON-126.Alldiscretefunctionalcontrolpositionsareidentified.27.Allannunciatoralarmsarerecorded.28.Alarmmessagesarerecordedinthesequenceoftheiroccur-rence.29.Provisionsareincludedtopro-vide,uponoperatorrequest,printoutsbyalarmgroup(e.g.,~system,subsystem,com-ponent).30.Alarmmessagesshouldbereadilydistinguishablefromothermessages.31.Alarmmessagesproviderapididentificationofthenatureofthealarm.32.Wordinginalarmmessages:oClearlyrelatetothespecificannunciatortilethatisilluminated.oContainatleastthatinfor-mation(i.e.,wording)pre-sentedintheilluminatedannunciatortile.oProvideadditionalspecificdata.33.The"QWERTY"arrangementisusedonkeyboardsthatcom-binealphabeticandnumericfunctions.6.6.3.8aOPA-28PA-496.7.3.2a.(2)6.7,3.2b.6.7;3.2Co6.7.3.2d.6.7.3.2e.6.7.3.2f.(1)6.7.3.2f.(2)6.7.3.2f.(3)6.7.1.4aOCON-7 HUMANENGINEERINGCHECKI.IST53PROCESSCOMPUTEREVALUATIONGUIDELINEREF.EVALUATIONGUIDBINE34.Qnkeyboardsusedtoentersolelynumericdata,a3x3+1matrixisusedineither"calculator"or"telephone".style.6.7.14b.>>CON-7943.Thiskeyboardusesnomorethan3differentsizesincodingcantrolsfordiscrimi-nationbyabsolutesize.CON-1735.Whenmorethananekeyboardexistsinthecontrolroom,alphanumericand/ornumeric-onlykeyconfigurationarethesameinallcases.6.7.1.4CoCON-7PRINTERS44.Printersarelocatedinthepri-maryoperatingarea.6.7.3.1a.Q)36.e37.38.39.41.Tominimizeeffectivenessofkeyboards,keydimensionsandseparationareasshowninExhibit6.7-3.KeydisplacementisasshowninExhibit6.7-3.KeyresistanceisasshowninExhibit6.7.Thereisadefiniteindicationofkeyactivationprovidedtooperator(e.g.,snap,audibleclick,releaseofresistance).TheslopeofCRTkeyboardisbetween15oand25framthehorizontal.Databeingenteredviakey-boardsaredisplayedastheyarekeyed.CRTkeyboardscontainonly.keysthatarerelevanttocom-puteroperation.6.7.1.4d.CON-76.7.1.4e.(1)CON-76.7.1.4e.(2)CON-76.7.1.4f.CON-56.7.1.4goCON-76.7.14h.6.7.14lo45..Printersrecordalarmdata,trenddata,andplantstatusdata.46.PrintersuppliesahardcopyofanysinglepageontheCRTattherequestoftheoperator.47.Ifcopyisprintedremotetotheoperator,aprintconfir-mationordenialmessageisdisplayed.48.Printeroperationdoesnotalterscreencontent.49.Printedinformationisinadirectlyusabieform.50.Printercapacityis300linesperminuteormore.51.Hand-finishedmattepaperisusedontheprintertopreventsmudgesandglare.52.Apositiveindicationofremainingsupplyofrecordingmaterialsisprovided.6.7.3.1a.(2)6.7.3.1b.(1)OCI-256.7.3.1b.(2)OCI-256.7.3.1b.(3)OCI-256.7.3.1CoVD-786.7.3.1d.6.7.3.1e.(1)6.7.3.1e.(2)VD-79AMCTm&'P315T.IT5.%TPA70nnaaamaazecTcmwnm HUMANEMGlNEKRIMGCHECKl.lST54PROCESSCOMPUTEREVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.54.55.56..58.Instructionsforreloadingpaper,ribbon,ink,etc.,areattachedtoprinter.IAprinterisprovidedforrecordingalarmmessages.Whenprinterisdown,dataandinformationwhichwouldnor-mallybeprintedisnotlost.Atake-updeviceforprintedmaterialsisprovided.Operatorcanreadthe,mostrecentlyprintedline.Printedmaterialhasadequatecontrastratio.6.7.3.1e.(3)6.7.3.2a.(i)6.7.3.1e.(4)6.7.3.1e.(5)VD-786.7.3.1f.(i)VD-806.7.3.1f.(2)VD-8063.64.65.66.67.Graphsareconstructedsothatnumberedgridsarebolderthanunnumberedgrids.'f10-gridintervalsareused,thefifthintermediategridislessboldthanthenumberedgrid,butbolderthantheunnumberedgr>d.Tablesaresimple,conciseandreadable.Whentablecolumnsarelong,numbersareseparatedinto'roupsbyprovidingaspacebetweengroupsoffive.Whencolumnsarenotsepa-ratedbyverticallines,thecolumnsareseparatedbyatleast2characterwidths.6.7.3.3c.(1)6.7.3.3c.(2)6.7.3.3d.(1)6.7.3.3d.(2)6.7;3.3d.o)59.Printcopycanbeannotatedwhileinmachine.6.7.3.1f.o)VD-79COMPUTERFUNCTIONCONTROLS61.62.Recordedmatterisnotobscured,marked,orother-wisehiddentopreventreadingofprintedmaterial.Agraphisusediftheshapeofthefunctionisimportantindecisionmaking.Ifinterpolationisnecessary,linegraphsarepreferredtobargraphsandtables.6.7.3.1f.(4)VD-806.7.3.3aO6.7.3.3b.68.69.70.Designoffunctioncontrolsonthecomputerconformtoappropriateguidelines.Terms,nomenclature,andabbreviationsusedonfunctioncontrolsareconsistentwiththoseofselectedcomputerfunctionthatisdisplayed.Apositiveindicationispro-videdattheCRTmastercon-troltoidentifydisplaysunderlocalormastercontrol.6.7.1.5aoALLCN6.7.1.5b.OCI-126.7.1.5c.Q) HUMANENGINEERIMGCHECKLISTSSPROCESSCOMUTEREYN.uAVIDaGUIDEI.IMEREF.EYAI.UATIDNGUIOEI.INEREF.71.72.ApositiveidentificationisprovidedattheindividualCRTtoindicateifitisunderlocalormastercontrol.Dedicatedkeysthatinitiate/activatefunctionsaregroupedtogether.6.7.1.5c.(2)6.7.1.5d.(1)CON-979.Theaccuracyofcontrolmethodordeviceiscommen-suratewiththefunctianstobeserved.80.Controldesignallowstheoperatorfreedomofmove-menttoperformotherduties.6.7.1.6co6.7.1.6d.73.,Functioncontrolsareeasilydistinguishablefromothertypesofconsolekeys.6.7.1.5,d(2)COMPUTER-OPERATORRELATIONSHIP75.76.Functioncontrolsareclearlylabeledtoindicatefunction.Designandlayoutoffunctioncontrolsareconsistentforallconsolesincontrolroom.Functionkeysarephysicallyseparatedfromalphanumerickeysontheconsole.6.7.1.5d.(~)CON-16.7.1.5d(4)CON-76.7.1.5d.(5)81.82.CorrectresponseisprovidedwithinresponsetimeslistedinExhibit6.7-6foreachtypeofquery.lWhenresponsetimeexceeds3seconds,adelaymessageispresentedinordertomaintaintheoperator'sattentionandtoconfirmnormalcomputeroperation.6.7.1.7aO6.7.1.7b.OTHERCONTROLS83.Proceduresareinhardcopyformataminimum.6.7.1.8a.(3)7.Controldevices(suchaslight~~pens,selectorpens,RAND.tablets,etc.)areoperablefrommostfavorablepositionforcomputerinteraction.78.Controldevicesproviderapidpositioningofcursorsorselectionofchoices.6.7.1.6aO6.7.1.6b.84.Acompletesetofoperatiansandcontingencyproceduresisavailableincontrolroom.85.Proceduresarepreparedfromcontrolroomoperator'spointofview.86.ViewingdistanceonCRTisgreaterthan18inches6.7.1.8a.(i)6.7.1.8a.(2)6.7.2DaOVD-46 0 HUMANEIGIIEERlmoCHECKLlST56PROCESSCOMPUTERFVALUATIOIIIGUIDELINEREF.EVALUATIONGUIDEI.IIIIEModedesignationandthefile(s)being'rocessedaredis-playedbythecomputersys-tem.88.Viewingangleisatleast30oforstandingobserver,or45oforseatedobserver.0.Visualaxisofoperatorisper-pendiculartocenterofCRTscreen.91.A-12-inchdiagonalscreensizeat28-inchviewingdistanceisusedforbysingleseatedoperated.COMPUTER-OPERATORDIALQGLE92.Dialogueisbasedonoperator'spointofview,notpro-grammers.93.Computerdialogueislogical.94,Computerdialogueisusedinaconsistentmanner.Computerdialoguereflectsthevocabularyandsyntaxofexpecteduserpopulation-89.Maximumviewingdistanceforsingleseatedoperatoris28inchesfor12inchdiagonalscreen.6.7.1.3CQ.QCI-24VD-46VD-46VD-45VD-466.7.1.2a.(i)QCI-256.7.1.2a.(2)OCI-216.7.1.2a.(3)OCI-216.7.1.2a.(4)OCI-2196.97.98.99.100.101.102.103.104.Inputwords(keywords)approximaterealwords.Computerdialoguerequiresanexplicitcommandtotermi-nateaninteraction.Computerinputwordsdonotexceed7characters.Abbreviationsareusedascomputerinputwordswhenpossible;Thesamesynonymorabbre-viationforasystemcommandnameisusedformessages,prompts,etc.,tooperator.Useofabbreviationsorcon-tractionsforoutputdataisavoided.Operatorinputs,responses,oractionswhichcouldsignifi-cantlydegradecomputersys-temorplantperformancearenotdependentonasinglekey-stroke.Promptingandstructuringfeaturesallowoperatortorequestadditionalinfor-mation.Promptingandstructuringfeaturesareavailableuponrequestwhenanerrorisdetected.6.7.1.2a.(5)OCI-226.7.1.2a(6)+OCI-246.7.1.2b+OCI-226.7.1.2c.(1)OCI-226.7.1.2c-(2)OCI-226.7.1.2c.(>)QCI-226.7.1.2d0OCI-226.7.1.3aOQCI-246.7.1.3b.QCI-24 HUMANENGINEERINGCHECKLIST57PROCESSCOMPUTEREVALUATIONGUIDELINE.REF.EVALUATIONGUIDELINEREF.106.107.,109.Correctionsofindividualerrorsaremadewithoutrequiringre-entryofcorrectdata.Thecomputersystemcontainsasequentialfileofoperatorentries,availableuponoperatorrequest.Whenmanysubsystemsrequiremonitoring,informationisfilteredbysoftwareormachinefunction.Operatorisprovidedinstructionsforcorrectingcomputerdiagnosederrors.Systemrecognizesandreportsdetectableerrors.6.7.1.3d..OCI-246.7.1.2e.QCI-24VD-9QCI-19OCI-19ACCESSAIDS114.Operatingdescribe:procedures0Theoverallcotnputersystem,Thecomputersystemcomponentswithwhichtheoperatorcaninterface,Thespecificproceduresnecessarytoaccomplishalloperator-computerinterfacefunctions.113.Beforetheoperatorrequeststhatresultinpermanentchangesareprocessed,thecomputersystemrequiresoperatoracknowledgement.6.7.1.1d.OCI-24256.7.1.8a.(4)(a,b,c)COMPUTERACCESS110.Onlyproperlyauthorizedper-sonnelareallowedtomakechangesbyentry,deletionofalterationofdata.6.7.1.1aO115.Contingencyproceduresdescribeindicationswhichidentifyfailureormal-functioningofcomputersystemandnecessaryactionstobeperformedbytheoperatorincaseofmal-functionn.6.7.1.8a.(5)(a,b)112.Atleastonecopyofcurrentoperatingsoftwareissecurelyandremotelystored.Whencharacters,words,orphrasesaretobeinserted,suchitemsarefirstcollectedanddisplayedonabufferareaofscreen,andtheninsertedbyoneoperatorcommand.6.7.1.1b.6.7.1.1coQCI-26116.Specificcodesoraddressesthattheoperatormayrequestarecross-indexedbyalpha-numericornumericcodepro-gramname,system/subsystemidentification,andfunctionalgroupidentification.117.Cross-indicesofdatadisplaysareavailableinatleasthard-copyformincontrolroom.6.7.1.8b.(i)(a,b,c,ad)6.7.1.8b.(Z) HUMANEMGlIIIEER1NGCHECKLlST58PROCESSCOMPUTEREVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.SSAGES.8.119.120.,MessagesonCRTareconcise.Messagesprovidenecessaryinformationtocompleteaspecificactionordecisionsequence.Messagesarenecessary,com-plete,andreadilyusable.Promptsaredisplayedwhen-everoperatormayneeddirectionorguidancetoinitiateorcompleteanactiontosequenceofactions.6.7.2.6a.(i)'CI-146.7.2.6a.(2)OCI-146.7.2.6b.0CI-146.7.2.6Co127.128.129.130.131.Feedbackisprovidedtoindi-catechangesinstatusofsystemfunctioning.Whenanoptionisselectedasinputtosystem,thesubjectitemishighlighted.Whensystemresponseisdelayed,periodicfeedbackisprovidedtoindicatenormaloperationandreasonfordelay.Resultsandrequirementsforsubsequentactionsarepro-videdafteraprocessorsequenceiscompleted.Feedbackdescribestypeandlocationoferror.6.7.2.6i~OCI-106.7.2.6joOCI-106.7.2.6k.OCI-106.7.2.6I.OCI-10OCI-19122.124.125.26.Promptscontainclearandspecificcuesandinstructionswhicharerelevanttoactiontobetaken.Directionsareplacedinthesequencetobeusedbyoperator.Wheneveroperatorerrororinvalidinputisdetected,anerrormessageisdisplayed.Errormessagescontaininstructionsforcorrectiveaction.Capabilityisprovidedforoperatortocorrecterrorswithoutaffectingadjacentvalidentries.6.7.2.6d06.7.2.66.7.2.6f.OCI-196.7.2.6go6.7.2.6h.OCI-19132.133.134.135.136.Displaysofcomplexcon-figurationsavoiduseofunnecessarydetail.Informationcriticaltosafetyoreffectivenesshasahighpriorityintheoperator'scen-tralfieldofviewandiscom-posedofstimulidemandinghighattention.Feedbackisprovidedthatlightpenhasactuated.Feedbackconcerninglightpenplacementisavailable.Feedbackisprovidedindi-catingthatlightpeninputhasbeenreceivedbysystem.VD-6VD-10OCI-28OCI-28OCI-28 HUINANENGINEERlhoCHECKLIST59PROCESSCOMPUTEREVALUATIONGUIOEUNEREF.EVALUATIONGUIDELINEREF.e'38.139.Messageoccurringinmultipleframesoccupiesconstantphysicallocationonscreen.Formatsminimize.cursorpositioningmovement.Eachdatagroupormessagecontainsdescriptivetitle,phrase,word,orotherdevicetoindicateitscontent.OCI-17OCI-50CI-12OCI-17146.Wheremulti-inputannunciatorsareused,analarmprintoutcapabilityisprovided.LABELING147.Visualanglesofcomplexsym-bolsonCRTsubtendnotlessthan20minutesofarcattherequiredviewingdistance.6.3.1.2c.(2)6;7.2.2aOVD-51140.Data,text,formats,etc.,essentialtosystemperform-anceareundersystemcontrol.<41.Informationrequiredfornext'peratorentryispresentedattheendofthemessage.142.Criticalinformationispre-sentedatthebeginningofamessage.143.p.Messagesrequiringoperatorstoreferenceexternaldatasourcesareavoided.Countingtasksstartwiththenumber"one,"whilemeasuringtasksstartwith"zero."145.Formessagescontainingvariableoptionlistsandoccurringinmultipleframes,physicalrelationshipsamongcommonelementsaremain-tained.OCI-14OCI-140CI-14OCI-1OCI-17148.Theheightofalphanumericcharactershaveavisualangleofnotlessthan12minutesofarcattherequiredviewingdistance.149.Alpha-numericcharactersareupper-caseletters.150.Thewidth-to-heightratioforalphanumericsisbetween3:5and1:1.151.Stroke-width-to-character-heigratioisbetween1:5and1:10.152.Graphiclinescontainamini-mumof50resolutionsperinch.153.Horizontalseparationbetweencharactersorsymbolsisbetween10%and65%ofchar-acterorsymbolheight.6.7.2.2b.(i)VD-456.7.2.2b.(2)VD-456.7.2.2coVD-456.7.2.2td.VD-456.7.2.2e.VD-50OCI-76.7.2.2f.(1) 00 HUMANENGlNEERlNGCHECKLlST60PROCESSCOMPUTEREVALUAT10NGUlDELINEREF.EVALUATlONGUIDELINEREl'.154.Theheight~idthratioforIt~~~~alphanumericsisbetween7:5and3:2.155;Strokewidth:heightratioofcharactersisintherangeof1:6to1:10.156.Characterseparationisbetween25%and63%ofchar-acterheight.157.Twoindividuallightpennablecharactersareseparatedbyateleastonesymbolarea.~58.Iflabelpresentslistofoperatoroptions,thedecisionoractionrequiredofoperatorisalsoindicated.159.Separationisatleast25%of'haractet'rsymbolheight:oWhencharacterorsymbolwidthislessthan85%ofheight,oWhencharacterorsymbolluminanceislessthan12ft.-L,oWhenluminancecontrastislessthat88%,VD-45VD-45VD-46VD-45OCI-136.7.2.2f.(2)(a)>>iVD-466.7.2.2f.(2)(b)>>6.7.2.2f.(2)(c)>>160.161.162.163.164.165.oWhenvisual'nglesub-tendedbysymbolheightislessthan15minutes,oWhenvisualanglesub-tendedbycharacterheightislessthan12minutesofarc.Simplecharacterfontsareusedwithoutserifs,variablestrokewidth,slanting,etc.Whendot-matrixcharactersareused,7x9dotmatrixisusedinpreferenceto5x7dot-matrix.CharacterstylessuchasLincoln/MitreorLeroyareused.Labelsreflectuniquechat-acteristicofcontentofdatagroupormessage.ILabelsarelocatedincon-sistentmannereithet'boveortotherightorleftofdatagroupormessagesthedescribe.Labelsareorientedhori-zontally.6.7.2.2f.(2)(e)>>6.7.2.2f.(2)(f)>>6.7.2.2g(1)6.7.2.2g(2)6.7.2.2g(~)6.7.2.4m.(2)OCI-126.7.24n.OCI-126.7.2.4ooOCI-12oWhenCRTscreenlocationisgreatetthan25%totheleftorrightofoperator'sstraight-aheadline-of-sightg6.7.2.2f.(2)(d)>>166.Labelsarehighlightedtofacilitateoperatorscanningrecognition.6.7.2.4p.(l)0CI-12 HUMANENGINEERINGCHECKLIST61PROCESSCOMP,UTEREVALUATIONGUIDELINEEVALUATIONGUIDELINE'EF.e"Thetechniqueusedtohigh-lightlabelsisdistinguishablefromoneusedtohighlightemergency/criticalmessages.168.Optionlabelsreflectquestionsorchoicesposedtooperator.6.7.2.4p.(2)QCI-126.7.2.4qoOCI-13176.Themannerofpresentationofidenticaldataisbasedonusestowhichthedatawillbeputbytheoperator.175.Elementsindatafieldaredis-playedinlogicalorder.6.7.2.4d.OCI-16.7.24e.(1)QCI-1DATAPRESENTATIONANDSCREENLAYOUTDataarepresentedtooperatorinreadilyusableformat.6.7.24a(1)QCI-1177.178.Identicaldataindifferentpre-sentationsisdisplayedincon-sistent,standardizedmanner.Numbersareusedasmenudesignators.6.7.2.4e.(2)QCI-16.7.2.4f.(1)QCI-2170.171.173.174.Datadonothavetobetransposed,computed,inter-polatedormentallytranslatedtobeusabletotheoperator.Illustrationsareusedtosup-plementorexplaintextwhereverpossible.Whenfiveormoredigitsand/ornon-textalphanumericsaredisplayedandnonaturalorganizationexists,charactersaregroupedinblocksof3-4.Groupsofdataare.separatedbyaminimumofoneblankspace.Wheremulti-inputannun-ciatorsmustbeused,analarmprintoutcapabilityisprovided.6.7.24a.(2)OCI-16.7.2.4b.OCI-16.7.2.4c.(1)OCI-16.7.2.4c.(2)OCI-16.3.1.2c.(2)'79.180.181.182.183.184.Numericaldesignatorsstartwiththenumber"1",notzero.Ifnumbersasdesignatorsisconfusing,alphabeticchar-actersareused.Whenused,alphabeticdesig-natorsstartwiththeletterIIAIIListsareverticallyalignedandleft-justified.Indentationsareused.forsub-classificationsonlists.Quantitative'ata(tobescanned)isintabularorgraphicform.6.7.2.4f.(2)OCI-26.7.2.4f.(3)6.7.2.4f.(4)6.7.2.4g.(1)QCI-26.7.2.4g.(2)QCI-26.7.24h.QCI-2
HUMANENGlNEERlMGCHECKS.lST62PROCESSCOMPUTEREVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEe'86.187.189.190.191.Theuseofhyphenationisminimized.Whenpresentedin.tabularform,alphanumericdataisleft-justified.Whenpresentedintabularform,numericdataisright-justifiedwithdecimalpointsaligned.Periodsareplacedafteritemselectiondesignatorsandattheendofasentence.Telephonenumbersarepre-sentedinfollowingformat:(914)555-1212.Timeispresentedinthefollowingformat:HH:MM:SS,HH:MM.MM:SS(.S)Thedateispresentedinthefollowingformat:MM:DD:YY.Eachindividualdatagroupormessagehasadescriptivetitle.6.7.2.4leOCI-26,7.2.4j.(1)OCI-26.7.2.4j.(2)OCI-26.7.24k.OCI-26.7.2.41.(1)OCI-26.7.24i.(2)OCI-26.7.2.4i.(~)OCI-26.7.2.4m.(1)OCI-2195.Physicallocationofdatagroups(alarms,menus)areconsistentonscreen.196.Organizationandseparationofdatasubgroupsareapparenttooperatorthroughtheuseofblanklines,etc.197.Listsofoptionsareorganizedbyprobabilityofselection,withhighprobabilityitemspresentedfirst.198.Non-optionlistso'fequal-probabilityoptionsarepre-sentedinalphabeticalornumericalorder.199.Paragraphsareseparatedbyatleastoneblankline.200.Selectiondesignatorsinmenusareseparatedfromtextdescriptorsbyatleastoneblankspace.201.Whendataarecontainedonmultiplepages,eachpagedisplaysbothpagenumberandtotalnumberofpages.6.7.2.4b.OCI-46.7.2.5CoOCI-46.7.2.5d.OCI-56.7.2.5e.OCI-56.7.2.5f.OCI-56.7.2.5geOCI-56.7.2.5h.OCI-5193.194.Displayeddataareorganizedlogicallyandconsistently.Displayeddatareflectanobviousandinherentqualityofthedatagroups(hierarchical,sequential,ormimic).6.7.2.5a.(i)OCI-46.7.2.5a.(2)OCI-4202.Itemsofanumberedlist"continue"onfollowingpagesrelativetothefirstnumberonthefirstpageofthelist.6.7.2.5i~
63PROCESSCOMPUTEREVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.20'.Whendirectionstotheoperatoraccompanyanoptionslist,thedirectionsprecedethelist.Urgentmessagesarehigh-lightedontheCRTscreen.6.7.2.5'jeOCI-56.7.2.5k.(1)QCI-7211.Alphanumericcharacters(ifused)aregroupedintowords,sentences,ortextinameaningfulway.GRAPHICCODINGANDHIGHLIGHTINGVD-38205.UrgentmessagesaredisplayedinthesamelocationontheCRTscreen.6.7.2.5k.(2)212.HighlightingofimportantmessagesisusedonCRT.6.7.2.7aOQCI-7e'07.Insystemsinwhich.selectionismadebyuseofacursorformatsareorganizedtomini-mizepositioningmovementsofthecursor.Theamountofinformatian-bearingactivatedscreenareadoesnotexceed2596ofthetotalscreenarea.Thisdoesnotincludedemarcationlinesusedtoseparategroupsofdata.6.7.2.5l.6.7.2.5m~213.Highlightcodingmethodsareconsistent.214.Highlightingmethodsforemergencyconditionsarenotusedinassociationwithnormalconditions.215.Ifcontrastenhancementisusedforhighlighting,nomorethanthreebrightnesslevelsareusedinasinglepresenta-tion.(Twoispreferred.)6.7.2.7b.(1)6.7.2.7b.(2)6.7.2.7Co208.CRTdisplayedtrendplotescalesareconsistentwiththeintendedfunctionaluseofthedata.209.CRTscreenlinesarecom-posedofatleast20pointspercm(50pointsperinch).210.Data,text,formats,etc.,essentialtosystemperform-anceareundersystemcontrol.e6.7.2.5n.VD-500CI-17216.Blinkingforpurposesofhigh-lightingisnotusedexceptforemergencyconditions.217.Ifblinkingisusedforhigh-lighting,namorethantwoblinkratesareused.218.Forsingleblinkrate,2-3blinkspersecondwithamini-mumof50msec"on"timebetweenblinksisused.6.7.2.7dOCI-76.7.2.7e.(1)6.7.2.7e.(2}OCI-7 HUMANENGfNEER)NGCHECKl.lsT64PROCESSCOMPUTERFVAI.UATIONGUIDEt.INFREF.EVALUATIONGUIQEUNFREF.219.Iftwoblankratesareusedforehighlighting,theratesareabout4persecondand1persecond.220.If2blinkratesareused,theon-offratioisabout50%.6.7.2.7e.(3)6.7.2.7e.(4)228.229.Thenumberofcodingsymbolsunderoptimumconditionsdoesnotexceed20.Thenumberofcodingsymbolsunderadversedisplaycon-ditionsissix.6.7.2.7j.(2)6.7.2.7j.(3)221.If2blinkratesareused,thehigherrateisusedfor'hemostcriticalinformation.222.Whereblinkingisusedfor~~~highlighting,theblinkingrateisbetween2-3Hzwithamini-mumflashdurationof50msec.6.7.2.7e.(5)OCI-7230.Othertechniques(i.e.,color,filledversusunfilled)todis-playdifferentstatesorquali-tiesofabasicsymbolareusedifneeded.MllTI-PAGECONSIDERATIONS6.7.2.7j.(4)223.225.226.Ifinversevideoorimagereversalisusedforhigh-lighting,itisusedtohighlightindensedatafield,suchasawordorphraseinaparagraphoftextorasetofcharactersinatableofdata.Ifgraphiccodingisused,itisusedtopresentstandardquali-tativeinformationortodrawattentiontoaportionofthedisplay.Graphiccodesareconsistentlyused.Ifsymbolsareusedforcoding,theyvarywidelyinshape.Thenumberofsymbolsusedforcodingiskeptsmall.6.7.2.7f.6.7.2.7go6.7.2.7h.6.7.2.7la6.7.2.7j.(1)231.232.233.234.235.236.Pagedesignandcontentmini-mizeoperatormemoryrequirements.Alldatarelevanttoaspecificentryisdisplayedonasinglepage.Whenpagesareorganizedinhierarchicalfashion,avisualaudittrailofchoicesispro-videduponoperatorrequest.Locationreferenceswithinascrollingframeareprovidedinviewableportionofframe.Sectionalcoordinatesareusedforpanninglargeschematics.Meansareprovidedforoperatortocontroltheamount,format,andcom-plexityofinformationbeingdisplayed.6.7.2.8a.(1)6.7.2.8a'.(2)6.7.2.8b.,6.7.2.8c.(1)0CI-166.7.2.8c.(2)6.7.2.8d.OCI-16 00 HUMANENGINEERINGCHECKLIST65PROCESSCOMPUTEREVALUATIONGUIDELIaIEREF.EVALUATIONGUIDELINEeIfmessageisavariableoptionlist,commonelementsmain-taintheirphysicalrelationshiptootherrecurringelements.6.7.2.8~e.OCI-17238.Lightpencordisretractableorguardedtoavoidcatchingonconsoleshelf.VD-55239.240.Cordconnectinglightpentoconsoleispositionedtomini-mizeinterferencewithviewedscreendata.Lightpensareequippedwithapush-tipswitchrequiring2-5oz.offorcetoactive.VD-55OCI-28241.242.eLightpennablecharactersarenotcodedbyblinkrate.Lightpensareapproximately0.5in.indiameterand6;0in.inlength.OCI-28
HUMANEIGfhlEERlIGCHECKLlST66EMERGENCYGARMENTSEVAI.UATIONGUIOEI.IIEREF.EVAt.UATIOMGUIDEUIIIEREF.1.Protectiveequipmentincludesprotectiveclothingandbreathingapparatus.2.Protective.equipmentwillbecompatiblewithbodysizesandwillallowadequatetactilesensitivityandabilitytosee,move,communicate,reachandhear.Protectiveequipmentwillbecheckedperiodicallytomakesureitisingoodcondition..4.Protectiveequipmentwillbeavailableinsufficientnumberandsizestoaccommodatealloperators.5.Sizeswillbemarkedclearly.6.Anadequatesupplyofpersonalprotectionequipmentexpendableswillbeprovided.6.1A.laO~6.1.4.1b.6.1.4.1co6.1A.1d.6.1A.1e.6.1.4.1f.10.Personnelwearingprotectiveequipmentwillbeabletooperatecommunicationsequipment.11.Emergencyfacemaskswillbe~equippedwithdiaphragmsfortransmittingspeech.12.Diaphragmsarecapableofseparatingvoicefromexhaustvalveaction.13.Anelectronicspeechsystemwillbe.usediffacemaskisnotequippedwithdiaphragms.14.Controlswillbeeasilyidentifiedwhilewearingemergencygear.15.Controlswillbeeasytoactivatewhilewearingprotectiveequipment.6.2.1.8b.6.2.1.8c.Q)COM-16.2.1.8c.(2)COM-a6.2.1.8c.(3)6.4.1.1d.(1)6.4.1.1d.(2)CON-47.Protectiveequipmentwillbeeasilyandreadilyaccessible.6.1A.lgo8.Operatorswillbewellpracticedindonningequipment.6.1A.1h.9.Instructionsfordonning,doffing,-andcontrollingprotectiveequipmentwillbeprovided.6.1A.1i~ HUMANEIGIIEERIMGCHECKllsT67+Criteriaaredifferent.++0700ismorespecific.+++1580ismorespecific.EVALUATIOIIIGUIDELiNEREl'.EVALUATIONGUIDELINEREF.LABELCONTENT1.LabelsdescribeQfunctionsand,clarity,characteristicsnomenclaturedescribed.theequipmentifneededforengineeringorarealso2.Labelwordingexpressestheexactintendedaction.6.6.3.1a.hb.PA-566.63.2aOPA-5510.Labelsareusedtoidentifyfunctionallygroupedcontrolsordisplays.ll.Thiswarningnoticeisclear,direct,andattentiongettingandof25%largerlettersizethananydetailedinstructions(e.g.,"Danger!DeadlyShackHazard"rather'han"Warning-HighVoltage").6.6.3.7aOPA-32PA-29Instructionsareclearanddirect.6.6.3.2b.hc.PA-5512.Thislabelusesnoperiods,PA-46excepttoprecludemisinter-pretation.Wordsthathaveacommonlyacceptedmeaningforallintendedusersareusedinlabels.5.IUnusualtechnicaltermsareavoided.UseofRomannumeralsisavoided.6.Wordsarespelledcorrectly.6.6.3.2d.PA-556.6.3.2e.PA-556.6.3.2f.6.6.3.4e.13.Categoriesofinformationnotneededinusingadisplayareavoided.LABELLOCATION14.Labelsarelocatedabovethefunctionalgroupsandcom-ponentsandthepanelele-mentstheyidentify.6.5.14b.VD-7PA-476.6.3.7b.PA-45and6.6.2.1a.Bcb.PA-45PA-498.9.Wordsonlabelsareconciseandconveytheintendedmeaning.Wordsandabbreviationsofsimilarappearanceareavoided.6.6.3.5PA-556.6.3.6PA-5615.Componentlabelslocatedaboveeyelevelarepositionedtoensurevisibility.16.Labelsareplacedclosetothecomponentstheydescribe.6.6.2.1CoPA-456.6.2.1d.PA-46
HUMANENGINEERINGCHECKllST68BfALUATIONGUIDELINEREF.EVALUATIONGUIDELINERKI'.17.18.Labelsareplacedwheretheyarenotobscuredforanextendedtimeperiodduringoperation.Adjacentlabelsareseparatedbysufficientspacesotheyarenotreadasonecontinuouslabel.6.6.2.1e+PA-44and6.6.2.4b.hc.PA-44PA-45PA-476.6.2.1f.PA-4626.AdministrativeproceduresareIinplacefortheperiodiccleaningoflabels.27.Controlpositionindicators8;willcorrespondwithdisplaylabels.28.Printingisonthedisplayface.GENERALLABELINQPRINCIPLES6.6.24d.6.9.1.2c.(3)6.5.1.4a.(1)Labelsaremountedtopre-cludeaccidentalremoval.21.Labelsarepositionedhori-zontally.eThislabelisnotamanu-facturers'abelplaceddirectlyonaninstrumentface.23.Verticalorientationoflabelsisusedonlywhenspaceislimited.24.Curvedlabelsareavoided.20.Labelsaremountedonaflat8surface.6.6.2.2aoPA-446.6.2.2b.PA-446.6.2.3a.(1)PA-43PA-476.6.2.3a.(2)PA-436.6.2;3b.PA-4329.Controls,displays,andotherequipmentthatwillbelocated,identified,ormanipu-latedareappropriatelyandcleariylabeled.30.Majorlabelsareusedtoidentifymajorsystemsonpanelsections.31.Subordinatelabelsareusedtoidentifysubsystemsorfunc-tionalgroups.32.Componentlabelsareusedtoidentifyeachcomponent.33.Labelsdonotrepeatinfor-mationcontainedinhigher-levellabels.6.6.1.1PA-286.6.1.2a.(1)PA-296.6.1.2a.(2)PA-496.6.1.2a.(3)PA-496.6.1.2a.(4)e25.Labelsdonotobscurefiguresorscaleswhichmustberead.6.6.2.4aOPA-47nW-eTV~~VhT,rchVTne9ADVDh%AQh44TO'%PA'7,'VhT,'f77PTCW HUMANEmotIEERlmoCHECKLIST69EVALUATlONGUlOEt.lNEREF.EVAl.UATlOIGUIOEl.NE34.Labelswillbegraduatedinlettersizeasfollows:aMajorlabelsare25%largerthansubsystem/functionalgrouplabels.oSubsystem/functionalgrouplabelsare25~klargerthancomponentlabels.6.6.1.2b.(i)PA-50PA-316.6.1.2b.(2)PA-50PA-3139.$PTag-outlabelsclearlyidentifyaut-af-servicecomponentsandequipment,aresecurelyaffixed,donotobscurethelabelassociatedwiththenon-operablecomponentandanyadjacentdevices,andaredesignedtophysicallypreventactuatianofacontrol.40.TheuseoftemporarylabelsisIadministrativelycontrolled.6.6.5.1d.-h.6.6.5.2aO35.Q36.oComponentlabelswillbe25'Nrlargerthancontralpositionidentifiers.Displaysareidentifiedastowhethertheyreflectdemandoractualstatus.Displaymarkingsareblackonawhitebackgroundtoprovidehighcontrast.6.6.1.2b.(3)PA-50PA-316.5.1.1e.(1)VD-896.5.1.3c.(i)PA-5941.IAreviewprocedureisusedtodetermineiftemporarylabelswillbeused:(1)whenneeded;(2)howused;(3)content;(4)installation;(5)impactonothersystemequipment;(6)documentationrequire-ments;(7)retrainingrequire-ments;(8)periodicreview;and(9)removal.6.6.5.2b.(i-9)TEMPORARYLABELS.Temporarylabelsareusedonlywhennecessaryandcon-formtogoodhumanengi-neeringprinciples.38.Temporarylabelsdonotobscurepriorpermanentlabelsunlesstheoldlabelistobereplaced.6.6.5.1a.hb.6.6.5.1coLOCATIONAIDS42.Demarcationlinesarevisuallydistinctivefromthepanelbackground.43.Linesofdemarcationareattachedpermanently.GENERALLABELINGREADABILITYCharacterheightsubte'ndsaminimumvisualangleof15minutesor0.004Xviewingdistance.6.6.6.2b.CDI-136.6.6.2Cr6.5.1.3a.and6.6.4.1a.(l)PA-34 00 HUMANEIGIIIIEERlIGCHECKLlST70EVALUATIONGUIDEiIIEREF.EYALUATIOMGUIDEI.INEREF.e"Typestyleisconsistentwithrecommendedfiguresorasimilarstyleandusedwithconsistency.46.Onlyuppercaselettersareused.47.Colorcombinationsprovidegoodcontrast.s.Letterheightisidenticalforalllabelswithinthesamehierarchicallevelbasedonthemaximumviewingdistance.49.Thisengravedlabelisfilledwithapaintpigmentorcoveredwith'clearplasticcover.50.Darklettersareprovidedonalightbackgroundtoensureadequatecontrastandpreventreadabilityerrors.~1.Labelsareincapitalletters.52.Strokewidth-to-character-heightratiosarebetween1:6and1:B.6.5.1.3b.(i)a(2)+P.A-36VD-366.5.1.3b.(3)PA-366.5.1.3c,(2)+PA-596.6.4.1a'.(2)'A-536.6A.lb.(1)PA-53PA-596.6.4.2a.(1)6.5.1.3d.(i)VD-39and6.6A.2CoPA-3853.Letterwidth-to-heightratiosarebetween1:1and3:5.54.Numeralwidth-to-heightratiosare3:5exceptforthenumber"4"whichisonestrakewidthwiderandthenumber"1"whichisonestrokeinwidth.56.Minimumspacebetweenwordsisonecharacterwidth.57.Minimumspacebetweenlines8willbeone-halfthecharacterheight.55.Minimumspacebetweencharactersisanestrokewidth.6.5.1.3d.(2)VD-40and6.6A.Zb.(i)PA-376.5.1.3d.(3)VD-40and6.6A.2b.(2)PA-376.5.1.3d.(4)PA-60and6.6.4.2d.(i)PA-606.5.1.3d.(5)PA-61and6.6A.2d.(2)PA-616.5.1.3d.(6)PA-62and6.6.4.2d.o)PA-62 00 HUMANENGlIEERIIGCHECKLlSTEVALUATIONGUIDELINEREF.EVALUATIONGUIDELIItIEREF.58.eLetteringissimpleandwith-outflourishesorserifsandconformstoconventionsforstyleandsize.6.5.3.3b(2)a+PA-36VD-36and6.6.4.2a.(2)PA-36LEGENDLIGHTS66.Thelegendisreadableunderambientlightconditions,withorwithoutinternalillumi-nation.6.4.3.3b.(1)and6.5.3.3a.(2)CQN-5COUNTERS159.Fordrum-typecounters,widthtoheightratioofnumeralsis1:l.60.Fordrum-typecounters,numeral-to-backgroundcon-trastishigh.6.5.5.1a.(2)'D-836.5,5.1a.(4)VD-8467.Legendletteringandcontrastanduseofcolorisconsistentthroughoutthecontrolroom.68.Thelegendmessagesarespecific,unambiguous,andconcise.6.4.3.3b.(3)6.4.3.3b.(4)PA-35and6.5.3.3b.(4)VD-661.62.863.jjSimplecharacterfontisused;variablestrokewidthsandslantedcharactersarenotusedforelectroniccounters.Numeralssubtendavisualangleof15minutesfromfurthestanticipatedviewingdistanceofelectroniccounter.Electroniccounternumeralwidth-to-heightratiois3:5.6.5.5.2a.(2)6.5.5.2a.g)6.5.5.2a.(4)69.Thelegendmessagescontainnomorethanthreelinesoflettering.70.Wheremeaningofthelightisnotapparent,labelingispro-videdclosetoalegendlightindicator.6.4.3.3b.(5)and6.5.3.3b.(5)CQN-56.5.3.2a(1)++VD-9664.Horizontalspacingbetweennumeralsis1/4-1/2numeralwidthforelectroniccounters.Character-to-backgroundcon-trastratioisbetween15:1ande20:1forelectroniccounters.6.5.5.2a.(5)6.5.5.2Co71.Legendletteringcontrastswellwithbackgroundwhenlightisbothonandoff,underbothambientandtransillumi-natedlighting.72.Legendsarewordedtoindi-Icatestatusindicatedbyglowinglight.6.5.3.3a.(3)PA-596.5.3.3b.(7)
HUMANENGINEERINGCHECKI.IST72EVAI.UATIONGUIDEI.INEREl'.EVAI.UATIONGUIDEUNEREF.MISCELLANEOUSAccessOpenings73.Eachaccessopeningislabeledtoidentifythefunctionofitemsaccessiblethroughit.DangerSafetyInstructions6.6.3.9aOPA-29LABELS-ORIENTATION78.Theangleforviewingthislabelisasshowninthefigureontheback.LABELS-COLORVD-2174.Alldanger,warning,andsafetyinstructionlabelsareinaccordancewithappropriatesafetystandards.6.6.3.9b.PA-2979.Whitealphanumericchar-actersonblackbackgroundhavethinnerstrokewidthsthanblackcharactersonwhitebackground.VD-38LABELS-PANELS75.Labelingfortrendrecordersidentifiestheparametersrecorded.Ifmuiti-pen,para-metersarelistedinorderofassociatedscalesorrecorders.CONTROLS76.Thisswitchmustbeusedwithjjthecoverpaneloffanddupli-cateswitchpositionlabelsareplacedantheinternalunit.6.5A.2a.(i)PA-5180.8Thispanelisilluminatedbyambientorindividualillumi-nation,andthestrokewidthonitslabelconformswiththefollowingguideiines:a.Darkcharactersonlightbackgroundhaveastrokewidth1/16oftheletterheight.b.Lightcharactersondarkbackgroundhaveastrokewidth1/8oftheletterheight.PA-3877.$PSeeillustrationonback.Thislabelforconcentriccontrolsusesthefollowinghierarchy:smailsoliddot,largersolidline,andlargerbrokencircle.Nomenclatureisadjacenttocontrolsandidentifiesthefunctionofeachknob.Colorcodingisusedtoincreasecode-symbolreliability.p,52 O.4l HUMANEIG)NEERlNGCHECKLIST73ANNLNCIATORS"Criteriaaredifferent.++0700criteriaaremorespecific.+++1580ismorespecific.EVALUATIONGUIDEUNEREl'.EVAl.UATlONGUiDEElNEREF.VISUALDISPLAYSMaintainability~~8.Masterlighttestcontrolexistsforeachcontrolpanelusingincandescentbulbs.VD-91Lampsmaybereplacedrapidlyandconvenientlyfromthefrontofthedisplaypanel.2.Ifnecessary,operatoraidsareIprovidedforlampreplace-ment.6,3.3.1CoVD-926.3.3.1CoIdentification/Coding9.High-priorityorsafety-relatedannunciatorsflashred,whileallotherlightsdonotflashorareadifferentcolor.VD-95e508ulbsmayberemovedandreplacedwhilepowerisonwithoutcausingcircuitcom-ponentfailureorpersonnelsafetyhazards.Legendscreenorindicatorcoversaredesignedtopreventinadvertentinterchangeortoprovideacheckofproperinstallation.Incande'scentdisplaylampshavedualbulbsorfilamentredundancytoindicateneedforreplacementofabulborfilamentwithoutdegradingoperatorperformance.6.3.3.1CoVD-926.3.3.1CoVD-92YD-9110.12.13.Annunciatorsorwarninglightsareseparatefromandclearlydistinguishablefromstatusindicators.Thisannunciatorisdis-criminablylargerandbrighterthanotherlesscriticalii.'gendlights.Thiswarningdeviceattractstheattentionofabusyorboredoperator.Thespecifictile(s)onanannunciatorpaneluseflashingilluminationtoindicateanalarmcondition.VD-96VD-1106.3.3.2aOVD-1126.3.3.2aOVD-109VD-99+6.70Annunciatorsaredesignedsothatfailureofthecircuitsorbulbsisimmediately.apparent.Failureoftheannunciatorcir-cuitwillnotcausefailureintheequipmentassociatedwiththedisplay.VD-2VD-7'4.15.16.Thiswarningdevicespecifieswhatiswrongorwhatactiontotake.Thiswarningdeviceallowscontinuedattentiontootherduties.Thiswarningdeviceisnotlikelytofailorgivefalsewarnings.VD-112VD-112VD-112ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANENGINEERINGCHECKI.IST74Ah&LP/CIATORSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINE17.18.x9.Eachmatrixislabeledwithalphanumericcodesforidenti-ficationofindividualtiles.Thenumberofalarmtilesandthematrixdensityarekeplow.Appropriatealphanumericcodesappearonmatrixaxesforreadycoordinatedesignation.ofaparticularvisualtile;coordinatedesignationispreferredontheleftandtopsidesoftheannunciatorpanel.Summarylabelsidentifymajoralarmgroups.6.3.3.3~d.(1)6.3.3.3c.(1)(2)6.3.3.324.Size-codedannunciatorsuseamaximumofthreesizes/steps.25.Compoundcodingisusuallylesssatisfactorythansinglecodingifthesinglecodeusedisthebestavailable.26.Coding'nthisannunciatorsystemisconsistentthrough-.outthecontrolroom.27.Nocolorcombinationswhichcanbeeasilyconfused(e.g.,redandorange;blueandpurple)areusedforcodingannunciatorsinthecontrolroom.VD-111VD-106VD-106VD-9720.Ifused,brightnesscodingusesonlytwolevels(brightanddim).21.Ifbrightnesscodingisused,brightrepresentsprimaryitemsanddimrepresentsbackgroundorsupplementaryinformation.2.Themaximumnumberofchromaticcolorsusedonannunciatorsisfive(totalofseven,includingblackandwhite).C/DRelationships23.Flashinglightshaveaflash31.BthxtusfHi@bteend~iehirtgfSe;fieaUdiopeefsaxrmn~tiuethsuh.eydteRdjMkesfrxfrrahboheequ51.chadkbg)4KMtaGXCM4783)stemcomponents.VD-111VD-illVD-1086.3.3.2LED-89VD-100VD-10928.Ifused,symbolsareclearlyassociatedwiththeabjects/conditionstheyrepresent.29.Symbologycodesuseonlysimple,symmetricalsymbolswithenclosedareas,sharpangles,and/orsmoothcurves.30.Symboliccodesavoidusingvariationsofasinglegeo-metricform.VD-110VD-110VD-1104ON-SXVZmuham,ohVTnNl8n'PPPh'PnPhCCTWTFDFVhT,77hVTnN
HUMANENGINEERIIGCHECKLIST75ANNUNCIATORSEVALUATIOIIIGUIDELINEREF.EVAI.UATIONGUIDEUIE32.Controldevicesassociated~~~~withthisannunciatorarewithinreadilyreachabledistances.33.Criticalfunctionindicatorsarelocatedwithin15ooftheoperator'snormallineofsight.Readability3'4.Annunciatorvisualtilelegendsarespecificandunambiguous.35.Tilelegendsaddressspecificconditions.36.Legendsareengraved.37.Onlyupper-casetypeisusedonvisualtiles.Typestylesaresimple(noflourishesorseriphs).39.Numeralsandlettersdonotvaryinengravingdepth.40.Letterwidth-to*eightratioisbetween1:1and3:5or100%to60%forblacklettersonwhitebackground.6.34.1VD-88VD-906.3.34+PA-55VD-66.3.34Ca~VD-66.3.3.5.(1)VD-1036.3.3.5b.(3)VD-1036.3.3.5b.(i)VD-103VD-41VD-1036.3.3.5d.(2)VD-105VD-4041.Numeralwidth-to-heightratiois3:5.42.Letterheightisidenticalforalltiles.43.Typestylesareconsistentonallvisualtiles.44.Stroke-width-to-character-heigratioisbetween1:6and1:8.45..Minimumspacebetweenchar-actersisonestrokewidth.46.Minimumspacebetweenwordsisthewidthofonecharacter.47.Minimumspacebetweenlinesisone-halfthecharacterheight.48.Theoperatorisabletoreadalltheannunciatortilesfromthepositionattheworkstationwhereannunciatoracknowledgecontrolislocated.49.Legendsprovidehighcontrastwiththetilebackground.50.Legendsaredarkletteringonlightbackground.6.3.3.5d.(3)+VD-103VD-406.3.3.5a.(2)6.3.3.5b.(2)6.3.3.5d.(1)+VD-1056.3.3.5d.(4)PA-606.3.3.5d.(5)PA-616.3.3.5d.(6)PA-626.3.3.5aOVD-90VD-356.3.3.5+PA-596.3.3.5c.(2)VD-93 0 HUMANEHGIIFFRlloCHFCKuST76ANNLNCIATORSEVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEREF.Thereisahighenoughcon-trastbetweenalarmingandsteady-antiles,andbetweenilluminatedandnonilluminatedtiles.52.Incaseofflashorfailureofanalarmedtile,thetilelightilluminatesandburnssteadily.6.3.3.2d+VD-936.3.3.2coVD-10958.Blankorunusedannunciatortilesarenotilluminated.59.Flashratesarefrom3to5flashespersecondwithapproximatelyequalonandofftimes.Location6.3.3.3f.6.3.3.2b.VD-1091472C53.Trademarks,company.names,orothermarkingsnotrelatedtotheannunciatorarenotdis-playedonthewindowface.VD-660.Thisannunciatorislocatedsothatitcanbereadeasilyandaccuratelybypersonnelinnormaloperatingpositions.1472CEachpanelisidentifiedbyalabelabovethepanel.Operations55.Changesindisplaystatussignifychangesinfunctionalstatusratherthanresultsofcontrolactivationalone.56.Extinguishmentofasignalorevisualindicationwillnotbeusedtodenotea"goahead"or"ready"condition.57.SometypeofvisualindicationAUDIelPFUdiRARMhSRhringalarms(ringback)suchas:.Aspecialflashrate(twiceor.one-half.thenormal64.Aqpximurp~qtfiveauattorysignacornbrriationsisusedioheRglahe85tigbtritaoodedbybothintensityandfrequency.oAspecialcolor.6.3.3.1b.(1)PA-491472CVD-896.3.1.56.3.1.5b.(2)6.3.1.5b.(3)61.Panelidentificationlabelheightisconsistentwithasubtendedvisualangleofatleast15minuteswhenviewedfromacontrolpositionwithintheprimaryoperatingarea.62.Letterheightforcoordinatedesignationisconsistentwithasubtendedvisualangleofatleast15minutes.63.Annunciatortile(s)letterheightssubtendaminimumvisualangleof15minutes.6.3.3.1b.(2)6.3.3.3c.(3)6.3.3.5a.(i)VD-35 HUMANENGlIEERlNGCHECKllST77AHNUNCIATORSEVALUATIONGUIDELINEEVALUATIONGUIDELINE66.67.e,69.70.II1.Themaximumnumberofaudiblesignalcodesbysounddurationatanygiventimedoesnotexceedthree.Changesinsignalintensityareusedasaspatialcodingcue.Frequencyisnotusedforspatialcoding.Themaximumnumberof~spatiallycodedsignals(viaintensitychanges)doesnotexceedfour.Differencesinsoundintensityaredistinct.Thesamesignalshoulddesig-natethesameinformationatalltimes.Morecriticalauditorysignalsareclearlydistinguishablefromthoseoflesserimportance.Nomorethansevendifferentfrequenciesareusedforcodingallauditorydisplays,includingwarningsystems.AD-19AD-20AD-20.AD-216.3.3.2c.(2)AD-1AD-3AD-3.5Operations74.Cautionsignalsaredis-tinguishablefromwarningsignals.75.Similaraudiblesignalsarenotcontradictoryinmeaning.76.Signalsthatincreasepro-gressivelyinlevelarenotusedwheremanualsilencingisrequired.77.Communicationsystems'orwarnings,suchasloud-speakers,horns,etc.,arenotusedforotherpurposes.78.Auditorysignalscaptureoperator'sattentionwithoutcausingirritationorastartledreaction.79.Auditoryalertmechanismsautomaticallyresetafteracti-vation.80.Audiblealarmsareusedinconjunctionwithwarninglights,unlessalarmisforevacuation.AD-31AD-18AD-7AD-126.3.2.1Co6.3.2.1e.AD-2372.Auditorysignalsdirectoperatortolocationrequiringaction(localization).73.Codedsignalsareusedtoalertoperatortoanalarmthatisnotwithinprimaryaperatingeareas.6.3.2.1f.AD-36.3.2.2aO82.Auditorysignalsarenotpre-sentedsimultaneously.83.Alarmaudiblesareshutoffonlyafterinitiationofthesignais.AD-3AD-881.Alarmsystemcanbesilenced.AD-8ON-SITEEVALUATION9OPERATORASSISTEDEVALUATION
HUMANENGINEERIMGCHECKllST78ANNUNCIATORSKVAI.UATIONGUIGEI.INEHEl'.EVAI.UATIONGUIGEEINE84.85.86.Systemis.equippedwithmanualinitiationasasupple-menttoautamaticinitiation(e.g.,evacuation,testing,etce)oAnaudiblealarmisprovidedtoindicatemalfunctionsinunmonitoredequipment.Clearedalarmshaveadedi-cateddistinctiveaudiblesignaloffiniteduration.Audiblealarmsarediscernibleoverambientcontrolroomnoise(levelapprox.10dBoverambient).AD-30CRE-216.3.1.5a.6.3.2.1aO92.Failureofaudiblealarmcir-cuitrydoesnotadverselyaffectequipment.93.Wheresignalintensityisadjustable,suchadjustmentisgovernedbyadministrativeprocedure.AD-116.3.2.1b.Arrangementt88.Soundsourcesaredirectedtowardstheoperator.89.Soundsourcesareplacedatorabovetheheadoftheoperator.MaintenanceJO.Audiodisplaysareequippedwithcircuitrytestdevicesorothermeansofoperabilitytesting.91.Systemsfailuresdonotaffectoperabilityofaudiblealarmsystems.AD-6AD-10AD-10AD-11ON-SITEEVALUATION9OPERATORASSISTEDEVAIUATION HUMANEIGINEERIMGCHECKl.lST79ANTHROPOME:TRIC+Criteriaaredifferent.++0700ismorespecific.EVALUATIOIIIGUIDELINEREF.EVALUATIOIIIGUIDELIIIIEWORKSPACEARRANGEMENT1.Minimumseparationfromthe~~backofanydesktoanyopposingsurfaceis36inches.3.Minimumseparationbetweenasinglerowofequipment/panelandawallis50inches.4.8Minimumseparationbetweentworowsoffacingequipmentifoperatedbyonepersonis50inches.5.Minimumseparationbetweenapposingrowsofequipmentwheremorethanonepersonworkssimultaneouslywillbe8feet.STANDINQOPERATIONS2.Minimumlateralspaceforaseatedoperatoris30inches.6.1.1.3e.(l)WA-216.1.1.3e.(2)WA-216.1.1.3f.(1)WA-206.1.1.3f.(2)WA-206.1.1.3f.(3)WA-208.$9.$10.11.KE'l3.$Thelo'westcontrolsonastand-up'consoleallowsa95thpercentilemaletoreachwith-outbendingorstooping.Benchboardslopepermitsa5thpercentilefemaletoreachallcontrols.Controlsaresetbackamini-mumof3inchesfromthefrontedgetoprotectagainstaccidentalactivation.Nocontrolismorethan25inchesfromthefrontedgeoftheconsole.Alldisplays,includingannun-ciators,aremountedsothattheyarewithintheupperlimitofthevisualfieldofthestanding5thpercentilefemale.Alldisplaysandannunciatorsaremountedsothattheanglefromthelireofsighttothefaceplaneis45oorgreater.6.1.2.2b(2)++VD22c6.1.2.2Ce6.1.2.2d.(i)6.1.2.2d.(2)6.1.2.2e'.(i)(a)6.1.2.2..(1)(b)VD-226.7.$Consoleheightwillnotexceed58incheswhenastandingoperatormustseeoverit.Thehighestcontrolsanastand-upconsoleallowsa5thpercentilefemaletoreachwithoutstretchingorusingastool,ladder,etc.6.1.2.2aI6.1.2.2b.(1)++VD-2215.Theobliqueanglefromthelineofsighttoadisplaylocatedtoeithersideoftheworkingpositionfromwhichthedisplaymustbereadisatleast45o.Themaximumlateralspreadofcontrolsanddisplaysatasingle-operatorworkstationdoesnotexceed72inches.6.1.2.2e.(2)6.1.2.2f.CommT.'rrhTrvwmTnwv HUMANENGINEER)NGCHECKS.1ST80ANTHROP0METRIC.EVALUATlONGUIOELINKREF.EVALUAT10NGUIDELfNEREF.16.Aclearanceof4inchesverti-caland4incheshorizontalisprovidedforfootroomatthecontrolboard.6.1.2.2geWA-2524.8Displaysaremounted.sothattheanglefromthelineof-sighttothedisplayfaceplaneis45oorgreater.6.1.2.3e(2)%%VD-22SEATEDOPERATIONS17.Q8.19.SPWhentheseatedoperatorneedonlymonitor(notread)statuslightsandannunciatorsbeyondtheconsole,see-overconsoleheightsabove45inchesareacceptable.Allcontrolsonasit-downcon-solearewithinthereachofthe5thpercentilefemale.20.Thebenchboardslopeiswithinthefunctionalreachofthe5thpercentilefemale.Consoleheightforseatedoperatorsisnohigherthan45inchesabovetheflooriftheoperatormustseeovertheconsole.6.1.2.3a.(i)6.1.2.3a.(2)6.1.2.3b.6.1.2.3Co25.26.27.28./JfControlsanddisplaysforaseatedoperatingsequencewillbewithinmaximumextendedreachandviewingrangeoftheseatedoperatorspecifiedonFigure6.1-11.Theoperatorwillnothavetobend/stretchsignificantlyforoperatingsequencesandsus-tainedorprecisecontrolaction.'ufficientfootandlegroomwillbeprovidedunderalltables,consoles,etc.Asurfaceatleast16inchesdeepand24incheswideisprovidedforwriting;forotherkindsofseatedtasks,thesur-facewillbe16inchesdeepand30incheswide.6.1.2.3f.(1)6.1.2.3f.(z)6.1.2.3geWA-276.1.Z.3h.(i)WA-2722.Controlsaresetbackamini-mumof3inchesfromthefrontedgetoprotectagainstaccidentalactivation.Controlsarenotmountedfartherthan25inchesfromtheconsoleedge.Alldisplaysandannunciatorsaremountedsothattheyarelessthan75oabovethehori-zontalline-of-sightoftheseated5thpercentilefemale.6.1.2.3d.(i)6.1.2.3d.(2)'.1.Z.3e.(1)SIT-STANDWORKSTATIONS29.$Heightandlaterallimitsforcontrolsanddisplaysconformsto6.1.2.2(seeattached).30.Ahighchairisavailablesothatseatedeyelevelisthesameasstandingeyelevel.6.1.2.4(a)'6.1.24(b)ON-SXTEEVALUATIONOPERATORASSISTEDEVALUATlON HUMANENGINEERINGCHECKLIST81ANTHROPOMETRICEVALUATlOIGUlQELlHEEVALUATlOMGUlDEUIEREF.31.Kneeroomandcomfortablefootsupportareprovidedatsit-standworkstations.VERTICALPANELS6.1.2.4(c)39.Worksurfaceareawidthis24inchesminimumiftasksinvolvereadingandwritingonly;30inchesifothertasksareinvolved.6.1.2.7+d.(4)WA-1632.Controlsareplacedinanareabetween34and70inchesabovethefloor.6.1.2.5%a.(i)WA-440.Kneeroomheightis25inchesfromthefloorfor5thto95thpercentilemalesandfemalesatsit-down-onlystations.6.1.2.7+d.(5)WA-1633./E34,/Jf35.Controlsrequiringpreciseorfrequentoperationandemer-gencycontrolsareplacedinanareabetween34and53inchesabovethefloor.Displaysareplacedinanareabetween41and70inchesabovethefloor.Displayswhicharereadfre-quentlyorpreciselyaremountedinanareabetween50and65inchesabovethefloor.6.1.2.5%a.(2)WA-46.1.2.5b.(1)WA-16.1.2.5b.(2)WA-141.Kneeroomdepthis18inchesminimumfordesksorcon-soles.42.Kneeroomwidthis20inchesminimumforsitdownworkstation.SEATSANDCHAIRS43.Seatsareatleast17incheswideand15-17inchesdeep.6.1;2.7.d.(6)6.1.2.7%d.(7)6.1.2.8e.WA-17/18los:s~s36.37.38.Forseatedworkonly,adeskis26to31inchesabovethefloor.Forsit-standdesks,theheightis36to38inches.Worksurfaceareadepthis16inchesminimum.6.1.2.7d.(1)WA-166.1.2.7d.(2)6.1.2.7d.(3)WA-1644./If45.Chairsatsit-downstationsareadjustablefrom15-18inchesinheightandforsit-standstations,from26-32inches.Anadjustablefootrestisprovidedatalevelofnomorethan18inchesbelowtheseatsurface.Ifitispartofthechair,acirculardesignof18inchesindiameterisrecom-mended.6.1.2.8"f.WA-186.1.2.8geON-SITEEVALUATION9OPERATORASSISTEDEVALUATION HUMANEMGINEERlloCHECKLIST82ANTHROPQMETRICEVALUATlOlblGUIDEl.lIEREF.EVAl.UAT10lblGU1DEl.llblECRTDISPLAYSII'heminimumanglebetweentheoperatorisline-of-sight(LQS)andthedisplayscreenplaneis45oorgreaterhori-zontallyandvertically.CRTdisplaysthataremoni-toredfrequentlywillnotbemorethan35ototheleftorrightoftheoperators'traight-aheadLQSornotmorethan20oaboveand40obelowtheoperators'ori-zontalLQS.6.7;2.3+b.VD-466.7.2.3+c.(l)()a(b)VD-4751.ConsolesinwhichCRTsareinstalledwillconformtotheguidelinesofSection6.1.2.6.7.2.3e.VD-544S.PP49.PE50.CRTdisplaysthatarenotmonitoredfrequentlywillbenotmorethan95ototheleftorrightoftheoperators'traight-aheadLQSandnotmorethan70oaboveand90obelowtheoperators'ori-zontalLQS.CRTdisplaysrequiringfre-quentmonitoringarenotmorethan35ototheleftorrightoftheoperators'traight-aheadLQSandnotmorethan35oaboveand25obelowtheoperators'orizontalLQS.CRTdisplaysnotrequiringfrequentmonitoringarenotmorethan95ototheleftorrightoftheoperators'traight-aheadLQSandnotmorethan85oaboveand90obelowtheoperators'ori-zontalLQS.6.7.2.3.(2)()a'(b)6.7.2.3d.(1)(a)a'(b)6.7.2.3d.(2)(a)*(b)ON-SITEEVALUATIONjsOPERATORASSISTEDEVALUATION HUMANEMGlIEERllIIGCHECKllST83FORCE/TORQUEEVALUATIONGUIDELINEEVALUATIONGUIDELlNEREF.;02.Toggleswitcheshaveanelasticresistancethatincreasesasthecontrolismovedanddropsastheswitchsnapsintoposition.Knobsforspring-loadedmomentarycontactrotaryselectorcontrolsarelargeenoughtobeeasilyheldagainstthespringtorqueforaslongasnecessary.6A.5.380CON-66A.4.5f.9.10.Resistanceofcontinuousadjustmentthumbwheelsisbetween3and6ounces.Resistanceofrotaryselectorcontrolsisaminimumof1.0inch/lb.andamaximumof6.0inch/lbs.Knobtorqueforcontinuousadjustmentrotariesiswithintherangeof4.5to6.0inch/ounces.6.4.5.1c.(2)CQN-976.4A.5e.(5)CON-36AA.4deCON-33.507.8.Theresistanceforrockerswitchesisaminimumof10ouncesandamaximumof40ounces.Rockerswitchresistancegraduallyincreases,thendropstozerowhenthecontrolsnapsintoposition.Thisresistanceprecludestheswitchbeingplacedbetweenpositions.Resistanceofalargetoggleswitchis10ouncesminimumand40ouncesmaximum.Resistanceofasmalltoggleswitchisaminimumof10ouncesandamaximumof16ounces.Resistanceofthumbwheelcontrolsisaminimumof6ouncesandamaximumof20ounces.6A.5Ae.(2)CQN-76A.5.4c.(1)CQN-76.4.5Ac.(2)CON-76A.5.3c.(4)CQN-66.4.5.3c.(3)CON-66A.5.1d.(2)(e)CON-912.13.14.15.16.Resistanceofkey-operatedcontrolsis1.0inch/lb.'ini-mumand6.0inch/lbs.maxi-mum.Resistanceforlegendpush-buttonsisaminimumof10ouncesandamaximumof40ounces.Resistanceforroundpush-buttonsisaminimumof10ouncesandamaximumof40ounces.Controlknobsorhandlesdonotrotate,slip,.ormovelooselyontheirshaftssoastoretainfullcharacteristicsduringitsservicelife.Nointernalwearorbreakageoccurstoalterthe"feel"orothersensoryfeedbackofthecontrol.6AA.3g.(3)CON-46.4.3.3e.(5)CQN-56A.3.2d.CON-56.4.1.1e.(2)6.4.1.1e.(3)ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANENGlNEERlMGGHECKLlST84COMMUNICATIONS+Criteriaaredifferent.++0700ismorespecific.EVALUATIONGUIDELINEREF.EVALUATIONGUIDELINEFixed-baseVHFtransceiversprovideafrequencyresponseofatleast200-3300Hzandsufficientdynamicrangeforhandlingspeechcharacter-istics.6.2.1.5aOCOM-110.Microphoneinputisprovidedwithinthecontrolroom.Speakersareprovidedinallareaswherecontrolroomper-sonnelmightbe.6.2.1.6b.(5)6.2.1.6c.(1)COM-2205.6.e8.9.Gainisadjustable,withthelowestsettingallowingaudi-bility.ProceduresareestablishedandpostedfortheuseoftheVHFsystem.Theannouncingsystempro-videsagoodfrequencyresponseof200-3300Hz,toachieveintelligibility.Loudspeakersareplacedtoadequatelycoverallnecessaryareaswithout"DeadSpots".Microphonefrequencyresponseiscompatiblewiththesystem.Poweredtelephones,usedwiththesystem,havemicrophonescompatiblewiththeannouncingsystem.Microphonesarehighlysensi-tivetospeechsignals.Microphonedynamicrangepermit50dBvariationsinsig-nalinput.6.2.1.5b.COM-46.2.1.5Co6.2.1.6a.(i)COM-16.2.1.6a.(2)COM-96.2.1.6b.(i)COM-16.2.1.6b.(2)6.2.1.6b.o)6.2.1.6b(4)COM-112.13.14.15.16.17.18.19.Speakersareplacedtoyieldanintelligiblelevelofsignalthroughoutthearea.Proceduresareoutlinedforthepropermannerofspeakingontheannouncingsystem.Speakervolumeisadjustabletoallowdetectionofauditoryalarms.Lowest;gaincontrolsettingallowsaudibilityofcommuni-cation.Controlroominputshaveprioritytointerruptorbypassmessagesontheannouncingsystem.Point-to-pointintercomscon-nectthecontrolroomwithimportantplantareas.Thesystemprovidesadequatefrequencyresponsefrom200-3300Hz.Gainisadjustableateachintercomunit,withlowestsettingallowingaudibility.6.2.1.6c.(2)6.2.1.6d.6.2.1.6e.(1)COM-46.2.1.6e.(2)COM-46.2.1.6f.6.2.1.76.2.1.7aO6.2.1.7b.ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANENGINEERIMGCHECKLIST85CQMMLMCATTONSEVALUATlONGUloEl.lNEREF.EVALUATlONGUloEuNE20.e21.22.24.Internalandexternalcom-municationsbackupispro-videdduringemergencies.Systemsdedicatedtonon-verbalauditorysignalsareusedonlyforthatpurpose.Auditorysignalsprovideloca-tioncues,directingoperatorstoareaofrequiredattention.Auditorysignalsareselectedtoavoidconfusionwithambientnoise.Auditorysignalsdonotinter-ferewithotherauditorysources,includingverbalcom-munication.6.2.1.8&e6.2.2.1aO6.2.2.1b.AD-36.2.2.1c.(l)AD-16.2.2.1c(2)+AD-330.31.32.Failureofauditoryalarmdoesnotadverselyaffectplantequipment.Falseauditoryalarmsareavoided.Auditorytestcapabilitiesareprovided.Dedicatedcommunicationlinksexistbetweenprimaryoperatingareasandtheshiftsupervisor'soffice.Operatinginstructionsareprovidedforeachcommuni-cationsystemincludingalter-nativesifsystembecomesinoperable.6.2.2.7aoAD-11,6.2.2.7b.6.2.2.7CoAD-106.1.1.6b.6.2.1.1aO25.Themeaningofeachauditorysignaiisclearandunam-biguous.26.Similarauditorysignalsarenotcontradictoryinmeaning.28.Soundsourcesdirectsoundtowardthecenterofthepri-maryoperatingarea.87.Alertingauditorysignalsaredistinctfromroutinesignalssuchasbells,buzzers,etc.6.2.2.2+AD-16.2.2.2b.AD-186.2.2.2ce6.2.24aOAD-635.36.Periodicmaintenanceisper-formedtoensurethatallcom-municationsystemsarenor-mallyoperativeandeffectiveundervaryingambientnoiselevels.Priorityproceduresareestablishedandaremadeknowntoalloperatorsforthetransmissionofemergencymessagesfromthecontrolroombyanyofthecommuni-cationsystems.6.2.1.1b.6.2.1.1c.(1)29.Auditoryalertandwarningsignalsareaudibleinallpartsofthecontrolroom.6.2.24b.37.Proceduresareestablishedforhandlingcommunicationsduringanemergemcy.6.2.1.1c.(2)ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION HUMANEIIIG1IIIEERIMGCHECKLlSTCOMMUNICATIONSEVALUATIOIIIGUIDELIIIIEEVALUATIONGUIDELINEREF.38.39.40.41.42.Conventionalpoweredtele-phonesystemspravidegoodfrequencyresponsewithintheauditoryspectrumof200-3000.Hz.Sizeandshapeofhandsetiscompatiblewithoperator'shandsizeandmouth-eardistance.Handsetsmaintainfirmearcontactbyreceiverwhiletransmitterispositionedtoreceivevoicewavesdirectlyfrommouth.Cordsarenon-linkorself-retracting.Cords.areofsufficientlengthtopermitmobility.Telephoneinstrumentsarecodedtoindicatecircuitorfunctioninamultiplephoneset-up.6.2.1.2aOCOM-66.2.1.2b.(i)COM-16.2.1.2b.(2)COM>>16.2.1.2b.o)COM-16.2.1.2b.(4)COM-26.2.1.2b.(7)46.47.48.50.51.Switchingisprogrammedtogivethecontrolroomauto-maticpriorityaccesstotheswitchingsystem.Loudnessofringingisadjustableatindividualtele-phonesets.Poweredtelephonesystemtransmitters,whenusedasmicrophoneinputstotheannouncingsystem,arecom-patiblewiththerestoftheannouncingsystem..Goodfrequencyresponsefram200-3000Hzisprovidedforsound-poweredtelephonesys-tems.Thesound-poweredsystemprovidesin-phasefeedbacktotheuser.Earphonesinheadsetcovertheouterearwithcushioningtoprovidecomfortforextendedwear.6.2.1.2c.(2)6.2.1.2d.6.2.1.2e.6.2.1.3a.(i)6.2.1.3a.(2)6.2.1.3b.(i)COM-245.Press-to-talkbuttonsarecon-venienttobothleftandrighthandoperation.Switchingisdesignedorpro-grammedtominimizedelaysinconnectionmakingundernormalandemergencycon-ditions.6.2.1.2b.(8)COM-I6.2.1.2c.(l)52.53.Earpiecesupportingstructuresinheadsetdonotimposedis-comforts,ofweight,con-centratedpressures,ormetalcontactwiththeskin.Theearpieceisheldfirmlyinplace,yetiseasytoremove.6-2.1.3b.(2)COM-26.2.1.3b.(S)COM-24QN-CTTEFVPkLUO'PThMhO'PO'hVh'0lLCCTC'PVnVWT'5T.'F'Th6Th'lJ LIIIi'ICI>'LMA~1~~&-tAPt~'4 HUMANEMGINEERINGCHECKLlsT87COMMUNICATIONSEVAI.UATIONGUIDELINEEVAt.UATIOMGUIDELINE54.55.56.58.59.61.Headsetsprovidehands-freeoperation,exceptwherepush-to-talkswitchesbecomenecessaryinareasofhighambientnoise.Binauralheadsetsareusedinareaswithhighambientnoise,remotefromthecontrolroom.Headsetstorageareaiswell-markedandaccessible.Needforringingisdeterminedbytheplantdependingonsound-poweredphonepro-cedures.Ifringingisnotinstalled,theuserisprovidedthecapabilityforswitchingthesaund-poweredtransmittertothepagingsystemtocallapartytotheline.Plug-injacksfarthesaund-poweredsystemareprovidedinthecontrolroom.Jacksarelocatedclosetotheworkstationstopreventtheneedforundulylongcords.Jacksaccommodateonlythesound-poweredphonesystem(notconventionallypoweredphonesystems).Requirementsforswitchingwithsound-poweredphonesareassessedfortheplantbasedonproceduresforuseofsound-poweredphones.6.2.1.3b.(~)CQM-26.2.1.3b.(5)6.2.1.3b.(6)6.2.1.3c.(1)6.2.1.3c.(2)6.2.1.3d.(i)6.2.1.3d.(2)6.2.1.3d.(3)6.2.1.3e.(1)63.64.65.66.67.68.69.70.71.Patchpanelsaremarkedcon-spicuouslyandlacatedinaccessibleareas,especiallyinback-panelareas.Acompletesetofpatchcordsareprovidedateachpanel.Walkie-talkieshaveagoodfrequencyresponsebetween200and3300Hz.Thereissufficientdynamicrangeandgaintohandleinstantaneousspeechpressuresandtodevelopnecessarysignallevelatheadphoneorloudspeakerofwalkie-talkies.Walkie-talkieradiofrequencyisbroadenoughforuninter-ruptedcommunicatianwithcontrolroom.Useofwalkie-talkiesisrestrictedinareaswherelow-levelanalogordigitalequip-mentareaffectedbyfre-quencybands.Walkie-talkiesarelightandportable.Walkie-talkieportabilityallowsonehand,andprefer-ablyboth,freeforothertasks.Microphonesareintegratedintothetranscieverpackageofthewalkie-talkie.6.2.1.3e.(2)6.2.1.3e.(3).6.2.1.4a.(1)6.2.1.4a.(2)CQM-16.2.1Ab.(i)6.2.1.4b.(2)6.2.1.4c.(1)6.2.1.4c.(2)6.2.1.4c.(3)ON-SITEEVALUATlONOPERATORASSXSTEDEVALUATION ~TIpl+lI0ltJF'U~~lPtIf'%@VIVAP\~'Oltt~ HUMANENGINEERINGCHECKLIST88COMMUNICATIONSEVALUATIONGUIDELIItIEEVALUATIONGUIDELINE72-73.74.,5.76.78.79.Partyidentificationisrequiredandprovidedforwhenmorethantwopartiesareusingthesamechannelonthewalkie-talkieatseparatelocations.Adjustablesignaldetectionforwarningsystemsiscontrolledbyadministrativeprocedure.Thewarningsignalcapturestheoperator'sattentionbutdoesnotcauseirritation.orstartledreaction.Eachauditorysignalisadjustedtoresultinapproxi-matelyequaldetectionlevelsatnormaloperatorworkstationsintheprimaryopera-tingarea.Theannunciatorauditoryalertmechanismautomaticallyresetswhenitissilenced.Theoperatorisabletoidentifytheworkstationorthesystemwheretheauditoryalertsignaloriginated.Thiscommunicationssystemusesauditorysignalsonlyforafewofthemosturgentwarnings.Reachtocommunicationdevicesandcontrolsisunob-structed.6.2.1.4do6.3.2.1b.6.3.2.1Ce6.3.2.1de6.3.2.1e.AD-96.3.2.1f+AD-5YD-480.81.82.83.84.85.86.87.88.89.Communicationdevicesarelabeledandcolor-coded(emergency,normal,etc.).Emergencyandmostfre-quentlyusedcommunicationdevicesareimmediatelyaccessible.Communicationdevicesareeasilyreached.Microphonesforthisequip-mentareprotectedagainstbreathblastandmoisturecon-densation.Receivercontrollayoutforthisdeviceis"station-select"bytherighthandandvolumecontrolbythelefthand.Thiscommunicationssystemallowsemergencymessagestoppriority.Thiscommunicationsdevicehasindividualvisualsignalsforeachchanneltoshowwhichchannelisinuse.Thisdevicedoesnotusechannelsharing.Forthisinfrequentlyuseddevice,instructionsarepro-vided.Thismicrophonedoesnotoverloadwithsignalsashighas125-130dB.COM-1COM-1COM-ICOM-2AD-3COM-1COM-1COM-1ON-SITEEVALUATIONLSAPFQATAAb,RATS'PRDFU'WT.TTW'PTCW w,lp"'1ye'I'APo~a*t~'4s>~f~~k1IL4~MtVI~A4I1~~P&V'4\~4JION~f/g&t%p4f~~,~ivLI HUMANEMGIIIIEERIIIIQCHECKLIST89COMMt.MCATIONSfVALUATIONGUIQEI.INEREF.fVALUATIONGUIDEI.INE90.95.96.97.Thisisadirectionalmicro-phoneiffeedback"squeal"isaproblem.Thiscommunicationssystemhasloudspeakersofdifferentcommunicationchannelsseparatedatleast10ofromtheoperator'sposition.Thisheadsethasafrequencyresponseas'broadasthatoftheremainderofthesystem.Theseheadphonesandloud-speakerscanreproducesoundfrom100to4000Hz.Thisheadsetreceiverhasauniformfrequencyresponsebetween300and4000Hz.Thisdevicetransmitssoundsfrom250to4000Hz.Thisheadsethas2speechchannels,andonechannelisfedintooneearandtheotherchannelintootherchannelintotheotherearorbothsignalsare"picket-fenced"at30-40Hz.Thisheadsetreceiverhasenoughelectricalpowertodrivepeaksound-pressurelevelto131dBwhenusingtwoearphones.Thisheadset/handset.allowsspeakertohearownvoiceinphasewithspeech.COM-ICQM-ICOM-2COM-5COM-2COM-ICOM-ICOM-2COM-899.100.101.102.103.104.105.106.Thisemergencycommuni-cationdeviceispermanentlyinstalled.Wherespeakerreverberationisaproblem,manylowpoweredloudspeakersarepresent,ratherthanafewpowerfulloudspeakers.High-qualitycommunicationshaveadynamicrangeof60dB;commercialbroadcast40-45dB.Thismicrophonehashighpassfilterstoreducefrequencynoises,andfrequency-selectivefilterstogivechar-acteristictimbretosignals.Thisdevicehascontrolscapableofcontrollingsoundpressurelevelsto110dB.Thiscarbonmicrophonehasno"packing"ofthecarbongranules.Carbonmicrophoneisavoidedifqualitycriteriademandatrulylinearresponsechar-acteristicofverylowback-groundnoise.Aribbonmicrophoneisnotusedforclosetalkingunlessspecificallydesignedforthisuse.COM-9COM-ICQM-3COM-ICOM-4COM-ICQM-ICOM-ION-SXTEEVALUATIONOPERATORASSISTEDEVALUATION ~4~A~\~~WVI%4 HUMANEMGIIIIEERfNGCHECKllST90COtviMLPGCATiONSEVALUATIONGUIDELINEEVALUATIONGUIDELINE3.07.Audiosignalsprovidedoveroperatorheadsetsarecodedthesameastheirrespectiveannunciators.108.Thismicrophonehasahighsensitivitytoacousticspeechsignals.109.Thismicrophonerejectsdis-tractingacousticsignalsandnoisesatthespeaker'location.0.Thisheadsetreceiverhasgaincontrolwithdynamicrangetomakethesignai15dBmoreintensethanambientnoise.COM-7COM<<6CQM-2ON-SXTEEVALUATZON,l,g9OPERATORASSXSTEDEVALUATION t1~Jr1~-~~a~IIt~I~1I'Vt~1~1I~I1ICl~II~I~~~~~4~IIFII1rtFtttW'~rtrt~1Furrr11%44&1Fr~1IFtltrtttrtJrrtr~~~~tr~~~ 91MAINTAINABILITY+Criteriaaredifferent.++0700ismorespecific.EVALUATIDNGUIDELINEREF.EVALUATIDMGUIDELINEThereisanadequatesupplyofexpendablesandspareparts-fuses,bulbs,ink,inkingpens,recordercharts,,printerpaper,etc.6.1.1.5aO10.NLegendlightswhichprovidea"maintenanceoradjustment"statusareuncoveredornon-visibleduringnormalopera-tion,butarereadilyaccessible.VD-902.Expendablesandsparepartsarereadilyaccessible.3.Allnecessarytoolstoinstallexpendablesandsparepartsareavailable.5.Thevarietyofexpendablesisclearlyanddistinctivelymarkedtoavoidmisappli-cation.6.Recordsofthestatusofexpendablesandsparepartsarekept.7.Forlighteddisplays,alamptestcapabilityisprovided.8.Pushbuttonlampsarereplace-ablefromfrontofpanei.9.Legendpushbuttonsdonotmalfunctionoractivateinad-vertentlyduringlampremovalorreplacement.~4.Thereisadequatestoragetspaceforexpendablesandspareparts.6.1.1.5b.6.1.1.5Ce6.1.1.5d+wWA-336.1.1.5eo6.1.1.5f.6A.3.3c.(1)CON-56.4.3.3c.(2)CON-56A.3.3c.(3)'2.Displayfailureisapparenttotheoperator.6.5.1.1f.VD-'7VD-213..Dual-bulbsordual-filamentsareused.6.5.3.1a.(1)VD-9114.,Bulbtestcapabilityispro-vided.6.5.3.1a'.(2)'D-9115.Bulbreplacementwhilepowerisonisprovidedwithoutbeinghazardoustopersonnel.16.Forlighteddisplays,alllightcoversarekeyedtopreventinterchangeability..17.Paper,ink,andotherexpend-ablesareprovidedandaccessibleinthecontrolroom.18.Recorderdesignpermitsquickandeasyreplenishmentofpaperandink.6.5.3.1a.'(3)VD-926.5.3.1c.(2)VD-926.5A.1e.6.5.4.1f.VD>>7811.Legendcoversarekeyedto-6A.3.3preventinterchanging.c.(4)CON-5RIM-CT'PT'.PWThT.TTh'PTAhJ Al\IIAAIlPPlAIIllV~Ikl~~<tPP~~IP~~lI~~Pt~PI<I~~IPH'l~NPWeal%~hM,lkIIk~'IP)~~I~Ca~t HUMANENGINEERINGCHFCKI.IST92EVA1UATIONGUIDELINEREF.EVAI.UATIONGUIDEI.lltIE19.Freshreplacementbatteriesforwalkie-talkietransceiversarestoredinanaccessibleandwell-markedarea.20.Stockofbatteriesislargeenoughtosupportcontinuousemergencyoperationofwalkie-talkies.21.Iflampreplacementrequirestileremoval,thereisawaytoensurethatthetileisreplacedinthecorrectlocation.Lampreplacementdoesnotsubjecttheoperatortoashockhazard.23.Operatoraidsareprovidedifneededforlampreplacement.6.2.1.4e.(1)6.2.1.4e.(2)6.3.3.1c.(1)VD-926.3.3.1c(2)mVD-926.3.3.1c.(3)ON-SITEEUALUATION9OPERATORASSISTED'EUALUATION aaQPt51(it't)IP(VSIae'aeVespc'iss/sgtgs((Isa$$if~pieI,(I:('ACc.l44'r.aaEwIM(eeasssMehvawt',cps111(Maaasat(M'(sksa~aevvI~~III'alvssawe~*4II~ese'aeeeaavavIea4~(I4.Na4tal>>eMeseMaMMMaeeeatIM>>alAaA4II~rte'4~"f.s((q~ae~aaIIIaaaw~~~~1rIIII~'J~e~'~~~(fP~1,1~~~Me~(Pas~af'f($a>>.ei~(,","(',a((a;(I'](~'raceaa*(~~~<<,I(es*~~'De'Es+a~'(~("((4~'I~g,Qa~IEE~~gg~spIr'a('I~~Ma~(AJsl~ee(e~f~'re~')<<((~4s(ee(P~IV~~~(e01I1~(IE((lealIIs(~14'I4~~~IVPIi~(~II'I(I(~>4~I~-a'*s4'('..prg('I"1'Iaas~~~,J>>5~(*~'I~~eave~~MIWIVVI~WII144aaI(IIH<<MVMVEWAAV1(I(avw'Meavaaielva~I~v~Iasaa~~aasM.Ir* HUMANENGlNEERlNGCHECKLlSY93TASKANALYSISEVALUATIONGUIDELINEREF.EYALUATIOMGUIDELINEGEhKRALPRINCIPLESAllcontrolsanddisplaysneededfor(1)detectionofabnormalconditionsand(2)bringingtheplanttoasafeshutdownconditionareincludedinthecontrolroom.2.Controlofplantequipmentfromonecontrolroomdoesnotaffecttheabilityofoperatorsofothercontrolroomstomaintaincontrol,oftheirunits.Thestatusofplantequipmentunderthecontrolofonecon-trolroomisdisplayedinallcontrolroomscapableofcon-trollingthatequipment.4.AvailabilitystatusindicationsaredisplayedinallcontrolroomsifcontrolofplantrendersthatequipmentunavailabletoothercontrolroomsoAsingle,centrally'ocatedcontrolpanel/consoleisusedfordual-unitcontrolrooms.6.Administrativeproceduresareinplacewhichassignresponsi-bilityforallocationofuseofcontrolsofsharedplantequip-menttoasinglecontrolroom.6.1.1.1a.6.1.3.1e.(1)6.1.3.1e.(2)6.1.3.1e.(3)'.1.3.1e.(4)6.1.3.1e.(5)7.8.9.10.12.13.14.15.Eachcontrolprovidesasuf-ficientrangeofcontrol.Thereisagoodreasontorequireacontrolforthefunctionconcerned.Theprecisionandrangeofacontroldoesnotexceedtheneed.Controlsarefunctionallygroupedandareinthesamelocationfrompaneltopanel.Pushbuttonsinarowormatrixarepositionedinalogicalorder,orinanorderrelatedtotheproceduralsequence.Analysisofoperatortasksisrecommendedtoestablishoperatorinformationrequire-ments.Visualdisplaysprovideallinformationaboutthesystemstatusandparametervaluesthatisneededinallsituationsofplantoperation.Onlyneededinformationisdisplayedintheoperatingarea.Visualdisplayofactualsystem/equipmentstatusisdisplayedforallimportantparameters.6.4.1.1b.(3)6.4.2.2b.,CQN-8964.3.1aO6.5.1.1aO6.5.1.1bVD-66.5.1.14+VD-76.5.1.1e.(2)ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION ~h'QSCd'<t,,~4CKrrCE"<<EUhIErrII1I~I~illI\at~raatltttrI'I+a4aECI1~~.j~rI"jIrer'IhraI~~~~hfre~4Iw'h&w444(KKIr~~KOIr~Etah~'le@~IKEWVh.I~IltI(JC~$~'IIIIth11fQ~1CI.I~.!'.Crj-.'K'I~ICII'CCl'iI~~'IWIE~~harletI~~arIr(EK(IhaIa~I~aIhKII'jtIah~~4~ICfg'hK~tlraIIr~hrIaaI~~'SKI)(AKC~E~IKrACV'Ir.arl'Cl"Ij'I'1IltI'IhI~\g'111(hCrrI~~r~~~)~IElEI,>)ICII'~h~~I'ICC's.t'.'cI1I.,';:ihI'.)'II,.!..'.El)J',~'aIIhIK.h,I'If~I>>I,(1~E~~~~KCljw'E43II)1II~~I~IP8'IIKKlIKa~h~>~IVtr'lthy<<IhICIIaIr<<~I.<C~1/I'III~Irar(Ijt\)~iii~II~~IC..'.h)C/'IJ,Ch~rt'3tr.I'C<<.CKCrc:IIIII~I~5~IrI~1'Ill~~'rI3'I'S"Kt\I~K'I~I~CICI~l'~~iIIiII=~~I~~~~~Il~Ij1~jiI1I~1')~g~'-.E.3%3'~~~IIKth1lllhtaI~~)a'II1.E~Et~Kl~ll"rlIKIKI~IEIAErrQIE'lrtJ"IIK.'I,"KE4hlIICII~ HUMANENGINEERIHGCHECKLIST94TASKANALYSISEVALUATIONGUIDELINEREF.FVALUATlONGUlOELlNE17.18.20.21.23.24.Scaleunitsisconsistentwiththedegreeofprecisionandaccuracyneededbytheopera-tor.Percentageindicationisusedwhentheparameterismean-ingfullyreflectedbyper-centage.Scalesspantheexpectedrangeofoperationalparam-.eters.Scalesemploytheappropriatescalerangingtechniques.Scalesaresupportedbyauxiliarywide-rangeinstru-ments.Displaydynamicsensitivityisselectedtominimizethedis-playofnormalrandomvaria-tionsinequipmentperform-ance.Scalesarecompatibleinnumericalprogressionandscaleorganization.Recordersareusedtorecordtrendinformationandmaterialwhichmay.beneededforlaterreference.Recordersarelocatedwithinprimaryoperatingareas.Therewillbenomismatchbetweennomenclatureusedinproceduresandthatprintedonthelabels.6.5.1.2a.6.5J..2CoVD-66.5.1.2d.(i)6.5.1.2d.(2)6.5.1.2d.(3)6.5.1.2f.6.5.1.5d.VD-716.5.4.1goVD-786.5.4.1h.6.6.3.3C>>PA-6326.27.28.29.30.31.32.Controlsanddisplaysarefunctionallygroupedwithintheconstraintsofgroupingbytasksequence.Controlsanddisplaysaregroupedaccordingtoimportanceandfrequencyofusewithintheconstraintsofgroupingbytasksequence.Thelocationofcontrolsanddisplayswithinasinglepanelmakesthemosteffectiveuseofthe'iewingandmanualmanipulativeareas.Groupsofcomponentsonapanelarephysicallyspacedsothattheboundariesofeachgroupareobvious.Demarcationlinescircum-scribefunctionalorselectedgroupsofcontrolsanddIsplayswithacontrastingline.Displaysobservedinaspeci-fiedsequencearegroupedtogether,preferablyinaleft-to-right,top-to-bottom,ornaturalsequence.Controlsoperatedsequentiallyaregroupedtogether,pref-erablyinaleft-to-right,top-to-bottom,ornaturalsequence.Layoutofrelatedcontrolsanddisplaysissymmetrical.6.8.1.1b.CDI-86.8.1.1CiCDI-96.8.1.2.6.8.1.3'+CDI-146.8.1.3bCDI-136.8.2.1a.(i)VD-186.8.2.1a.(Z)+~CON-106.8.2.1a.(3)CDI-8ON-SITEEVALUATIONOPERATORASSISTEDEVALUATION 4ly?CAIegI?fSW'!'?>4r!+~"551eapet.I44<<<<err<<<<444<<4J'";5Igf,tt4yre4844e~'~~~~'7jy)'je~~~'evr~4reerII\4~<<<<<<pp4414Ihpv~41'4<<4<<h<<lre~44<<<<~I,~'I~,~I~Iv4A~rt~I1h~~i)!I1~~)I<<Ih<<<<4p4144<<re'Ilr~41lhI~'~Q<<I14~~a.~IehtI*.IIPtyI'Iel!~)~Iw.I~54~~-iA44~.<<si~~~r.hl~lr'r<<~)J4'~.~!~isIP~!yr'~~I~I4~4Ir45~'.r1I"q.I4~~I+Ile~414II4I'.re!I!I!~II~II<<14It~'Wr54fIy~<<~~5)~'r~'5I'5C.aC.Sj!.WpIIyl,I~44I~righr.I4II~~II~4I~vt~~'4$4~~~4~,Ii~eIreI,i'I':'I1~~~IhII'~I~IIhe~I4,rlIII4~'II?*'),)4'I'IIl~~rirIIS'IIyII~~'I~'~44~S)t,I<<>I4-g7I!'I'I~~II~'I~II)!I1I~\~PqI]'-..~5.5(!~PIhIi~4rll')J'IiI~l'I4I'I)P.-4~"II!'4~'<<444~v<<l~~A<<re~~re~yves+II4<<hekrrvL'<<clew~1<<v<<rr44I<<he<<<<<<r<<<<~~4 HUMANENGINEERIIGCHECKLIST95TASKANALYSISEVALUATIONGUIDELINEREl'.EVALUATIONGUIDELINE35.Frequentlyusedcontrolsanddisplaysarenearthecenterofthepreferredvisualandmanualareas.Frequentlyusedcontrolsanddisplaysarepositionedsoastobeeasilyidentified.Functionallyrelatedcontrolsanddisplaysaregroupedtogetherwhentheyare:oUsedtogethertoperformtasksrelatedtoaspecificfunction.6.8.2.1b.(i)6.8.2.1b.(2)6.8.2.1c.(1)42.Standardizationismaintainedwheresimulatorsorproceduretrainersareusedthatsimulatetheactualoperationalequip-ment.'43.Simultaneousactuationofadjacentcontrolsispossible.44.Horizontalrowsofsimilardis-playsareusedinsteadofver-'icalcolumns.SINGLECONTROLANDDISPLAYPAIRS6.8.2.46.8.3.1Co6.8.3.2a.37.oIdenticalin.purpose.Componentsarearrangedleft-to-rightand/ortop-to-bottomandareinalphabeticalornumericalorder.6.8.2.1c.(2)6.8.2.2a.CDI-1146.Thedirectionofcontrol/displaymovementisassociated.6.9.1.1c.(2)CDI-745.Displaysareassociatedwith'.9.1.1relatedcontrols.-'c'.(1)CDI-838.$9.f41.lComponentsarearrangedtomatchoperatorexpectations.Thelayoutofidenticaicontrolanddisplaysetsisconsistentatalllocations.Layoutsofrepeatedfunctionsarenotmirror-imaged.Standardizationismaintained'heresimilarfunctionsorpanelsarelocatedatseveralworkstationsorunitsandmustbeusedbythesameper-sonnel.6.8.2.2b.6.8.2.3aeCDI-156.8.2.3b.CDI-166.8.2.4aOCON-8CDI-1547.Theoperatorisimmediatelyawareoftherateandlimitsofcontrol/displaymovement.49.50.Controlsarecenteredonthe'isplay.Controlsaregroupedina,lineormatrix.MLLTIPLECONTROLSORDISPLAYS48.Controlsaremountedbelow'hedisplay.6.9.1.1c.(3)CDI-.76.9.1.2'.(1)CDI-.11,6.9.1.2a.(2)',,6.9.1.2.a'(3) I~IIjtrIJ(/t)A(%~I)lIf\/J>rvs4%%4>%(1%>>tI(sr(slre4>>4<<1>><<(rreh<<<<Jr~h%%<<lrrt%~tt~.".3~"-"r't,>I')"'l".=.'<"-<>rvshrhv<<s<<t%Itrr>>loAvtr%(tt'vrl<<~'\I>>'/(/>svv(V'rvs<<<<4<<4J<<h(V-teSt>>VJ>I<<'h<<hr~'rrh>>.~rr.%<<tetr%rh.tLra'>>r~~CIV~rVrtt'%%V%v%h>>l4rfsssvv>>lrI<<htrrslr~'Irs~%tv>>\h'~~r"tn)lI.'t'/CrtI.I",.'I~r'1sass%<<%~<<IIIpI~rrl%t<<tv<>>>v>>1'tlIv>>lvIIetwv%>>r<<h(%>>hfhr>><<tl~1~~~t<<A,<<r(>>ttt'.)~'I~/>>e~~)h.+pv.%~1%Ipret,tepI~.r~~~:..Ii,<>CJ,e~<<<t"I<<~~t~~IISI~~I'I~~~~t.I4/I/~II'I~A>>"~IC.htlsI~)%g3<<t"%/I'+rsrrV\tt/)/<<%<<.rt(2t$~sr>lr~(~/%4I>>~\,/~I~1~I,Yv/4~'%%%>III4/tl~<<SV1I;));/'r\"t4'S.'II~/'Ir~4~It~l<<S%1./~It>>I~1'~hI'.1"~v%6IMSlIC,:III'rIr~It~i>>~C)1~ISI'8>I>>IIvr~~I/~h(\t~If\)II'~%~~,~~'t/~I't>>,II~I<<I-'v~II%'4>>~~I~3tv~/I<</~vlh,~I~I>Jr1Vs,J,)h,<<II'<<r(~IJvI/I'%'~')~'lle>>~If'>~>>+%)I~rl~~\~4~I'I+~tS~~%>II)I~4~>>Ir4<<'I:((I~'II->>;/,,f1I~4~>>II~rv>~Pt1~I~Jt<<(r>>sr>><<te'(>>v<<e<<tet/4%*Jt>>tr*>>IIs,~.P.'..",.1-~.).l'"(I/(~\)I)'11vd~%<<ht>errI((>>I>>%<<1%>1%>>rI/~rI.I,).1~/'%~v<<%v<<%4~\)'S<<>t<</tsk<<rtl<<%%ver)4%~4~~~r>>sr4~vs,.t~~~4>v~~~~~AAv~ HUMANENGINEERIMGCHECKLIST96EVALUATIONGUIDELINEREF.EVALUATIONGUIDELINE52.53.Ifnotfeasibletomountcon-.trolsdirectlybelowthedis-play,controlsarsmountedtothsrightofthedisplay.Wherethereisanormalorderofuse,controlsarearrangedfarusein.left-to-right,top-to-bottom,orothernaturalsequence.Whentechniquesin(50)or(51)cannotbeemployed,layoutenhancementtechniquesareemployed-spacing,demarca-tion,colorcoding.,6.9.1.2a.(4)6.9.1.2a.(5)CD[-106.9.1.2a.(6)CDI-1359.Whentechniques(50)and(51)donotapplyorac/drelation-shipisnotapparent,,layoutenhancementtechniquesareemployed(see6.8.1.3).DISPLAYSELECTORS'0.'ThecontrolmovesclockwisefromOFFthroughsettings1,2~3-.n61.Thecontrolpositionsequenceconformstothedisplaysequence.6.9.1.2b.(6)CDI-13=6.9D.2c.(l)6.9.1.2c.(2)CDI-8SINGLECONTR~MLLTIPLEDISPLAYSI54.Displaysarelocatedabovethecontrol.6.9.1.2b.(i)CD[-1162.Multiplecontrolsordisplays.relatedtothesamefunction.'regroupedtogether.63.Sequenceofuseisleft-to-right,top-to-bottom.6.9.2.1CDI-8'6.9.'2.1.b.CDI-8t55.56.57.Controlsareplacednearthedisplayandpreferablyunderthecenterofthedisplayarray.Displaysarearrangedhori-zontallyorinamatrix.Ifnotfeasibletomountdis-playsabovethecontrol,theyaremountedtotheleftofthecontrol.Wherethereisanormalorderofuse,displayswillreadfromleft-to-right,top-to-bottom,orinothernaturalsequence.6.9.1.2b.(2)CON-16.9.1.2b.(3)CON-16.9.1.2b.(4).'6.9.1.2b.(S)'CDI-10SINGLEPANELARRANGEMENTS64.Eachdisplayislocateddirectlyaboveitsassociatedcontrol.65.Display/controlpairsare;arrangedinrows.66.Eachcontroloccupiesthesamerelativ'epositionasthe.'isplaytowhich.itisassociated.6.9.2.2.a.(1)CD[-3.06.9.'2.2'.(2).CD[-11'.9.2.2b.(1) Ct)(~C$y)Ft4fEl'$34)el>>~043>>'rvevre>>ev0wer>>EI'40,;4>SI404>>'>>RWV~re*~$03Iv~44\4C>>vre44w~.w,4~',~rn>>er'>>0%'Ireer>>~>>vr~"I104444~40wI'0~4~verwEweW1'I>>'4'IJI~Eere~'.'r<,O'"I9~(<>>',83"jler~>>E~te134"1>>ee)E"ew<</'w,P'k3)44444>>IHev00~(jIWe4~(~Ir~lgt')~404t"$~~II3I)II'.44~1C~"~44r~Ie(t)I34v>>+P44'>>0~~33rt.C>>l;;.'.i.80<'e~$03,34~4j4C,ACE>>~-~43>>4rd'~')0>~4vII'l~~'O4~,D~4'S>>~43I1t4tIrwr~E4"I3t'\4'I,E~51~I".,4)I'~~~~'~0~t'1~I~~\4>>3>>~4jr~'I'$~Ir~Irvrt'ei~4~4"COW~4rMl~~'I~'4~44~'I,4'4~JII)I>>))~t34f'~'3';)'I)JJE.IJIEte,e)~,;tIIr'r,~"3404E3If4i'Ief4I1I4CEJ0I~14~~>>>>II\)'I0Ie>>Jtjl'e*(>>4~J(3EI44),~~3'4~I)E~00~4,)41~)~4+4~~440~'l4~~0'lI~I4\3~I~4rwes44JM4>>re0I\r>>wrr4>>EIaerI'v4444h>>e44NIL%>>0~H~Ir>>e>>ee~Jr>>~~3I0>>00~~I4>>~rvv44~~ VHUMANFNGlNEERIMGCHECKLIST97TASKANALYSISEVALUATIONGUIQELINEEVALUATIONGUIDEINE67.Controlsanddisplayshavecorrespondinglabels.MULTI-ROWDISPLAYSWITHSINGLE-ROWCONTROLS68.Displaysareorderedleft-to-right,top-to-bottom,andmatchedtocontrolsorderedlefttoright.69.Controlsanddisplayshavecorrespondinglabels.CONSISTENCY6.9.2.2-b.(2),.PA-326.9.2.2c.(i)'DI-116.9.2.2c.'(2)'A-32'GENERALMOVElvIENTRELATIONSHIPS74.Aclockwiseturnofarotarycontrolresultsinits,associatedlinearscales';movinguportotheright.75.Aclockwiseturnofarotarycontrolresultsinitsassociateddigitaldisplaytoincreaseinvalue.76.Aclockwiseturnofarotarycontrol'esultsinits.associatedstringsofindicator'lightsmovingfrombottomto.toporfromlefttoright.6.9.3.1a.(1)CDI-16.9.3.1a.(2)6.9.3.1a.(3)70.71.12.73.Arrangementoffunctionallysimilarcontrolsanddisplaysconformthroughoutthecon-trolroom.Modularcontrol/displaypack-agesareselectedandarrangedtoachievemaximumcon-formityto6.9.2.2(a-d}.Wheredisplaysareonsepa-ratedpanels,theyarepref-erablyontheadjacentupperpanelfromtheir~associatedcontrols.Relatedcontrolsanddisplaysarenotlocatedonseparatepanelsthatfaceeachother.6.9.2.2de6.9.2.2e.6.9.2.3ae6.9.2,3b.77.Aclockwiseturnofarotarycontrolresultsinitsassociatedcircularmetersmovingclockwise.78.Movementofalinearcontroluportotherightcausesassociatedlinearscalestomoveuptotheright.79.Movementofalinearcontroluptotherightcausesassociateddigitaldisplaytoincreaseinvalue.80.Movementofalinearcontroluptotherightcausesassociatedstringsofindicatorlights,tomovefrombottomtotoporlefttoright.6.9.3.1a.(4)CDI-16.9,3.1b.(1)6.9.3.1b.(2)6.9.3,1b.(3)ON-SITEEVALUATIONTRTEDV 8((Etget1re~>>1eyvattttppt+ttfII'5Ipt,tgrtqttlg~tttEaat11tatE1IEIa4441~aE~'14ttletrat:I.Fl'rIEII.rr>wIVI'A444vA~I~4440'toaverwlrtarrw:avapIilttt)t,Iga>44>>tat>atvt,tagtrwv4a.ataaraateteaavrravavreravatr>we>a>errvoter>'IIaI,I44IItvrEIatltPw44144w'reer>44vpavQPIEa~traavavleatwtvwavae'I>>.414IIawwwv4w'Jr~IeI4444jht4vvapwataawIrr'I~VretrpetvI~I'I,I>4<<*I~>~>4/'I))IjIt1Et'IIIIE4rtE~PrI'~(It4tat>Ireewrrvveeap>vva>t,raeeavr~raNaw1~tr11'~E,tf1IIttrr=~.Iar>>'aII~V4>f"~\~.t~I~~.~~~C.>VI'"I~,IIr~4IIItI~'t~'Ir>41I111/>>raIe'I~'lqvIl"I:\II~4vrewtwv~1perarer&rpav!4~444I~\01v1jtvvra.II;retteIt~IIIr'E'tI'Itet4"I~Itt,a1I.eII~IE~'~4Ej~tIII)EtIIy'~~~al144~4trp)~lraprv~g~jtt',,w~$~f)p/,pe+ter+pavp'I'apaI'~.Irsvt~ HUMANENGfNEERjMGCHEGKLlST98TASKANALYSISEVALUATIONGUIDEINE.REt'.KVAI.UATIOMGUIDBINERKl'.83.Controlsprovideeasyandpreciseparametercontrolandareefficientandeffectiveunderallconditions.Displaysprovideacapabilitytodistinguishsignificantlevelsofthesystemparam-etercontrolledControlsanddisplayshaveaprecisionwhichdoesnotexceedthatrequired.Printingonthedisplayfaceisconsistentwith'rocedurenomenclature.6.9.3.2a.6.9.3.2b.6.9.3.2Co6.5.1.4e.PA-63ON-SXTEEVALUATION9OPERATORASSISTEDEVALUAT'ION JIC~tj',,W~i.-.t~r~:'.ff;-~>>.I~)A't->>~~'tfPg'>>~4'".)fp.ti',Pr1zaatts>>lbtrCII~eCI4Itrasr4tJtteatt%4445CJJJfh&QQ,I44/+flrersrrast'arI,ar~rr1~artstrUuwrearrastrsasrtAtwrtr~.Jsaa'r)1t.Is+f,I'tdf~ss~~test~lreJisrrscrssP'JIXVftftrams'ttz'~z1stI~II%%rt11'~rrrrrlrtt"'rrttrtWrrrreasiS'ISJartrff~f,)~f.sI9<<rIP~.~11~I~~C"(F'-'J'~'I~atI,sf1.safe'ljjtIIl-~~tQ~etsrsszIr'wz--J~1IstaIgs11~Err~te~araarrasrrI'larraaealartflf~zstcz~m)srtrsrr.~mr~me-:~<<tr1.s1:wtsrarttzz-It~tsrssae>>.~J.rs.ttzess:t'.kreis0'I~r,tIt~s~CaIrs8J)~JIa'lysiIe~lP~C<f."Ja.v~tte~Ir~1'es<<JJIIJ~trraJ~rst>>w=~~01'I(cjtCez1tat.,ti~.-resr1st~~IrrJplaw4&~~AslatJI~I~II11I~C(tCtJsrt"C5lS;:."Jl'$;::)'~~~Irr~~la~AJI~')Qg~,'lrtl)'rO'~~I>>1gIl'Ptl~~1a~\~IIaA,S>>P~~C,;rtgPglg(f)1,)JPft11~IIae~I~~~~~r~~~~III~~II~~~~~I~1~~~~~~~~~~~~II~~~~~I)~~~~afI1t*.,.1Q.'iffl1~pr'rt'ff1IIqii)['..':"!f~~I.<.'3KC!fit,rIts~lI~aJ~Ja~JQIJztlII~t'~I~Iel'CI~4rz1aCt~'gp,tatfC~~<<Jt,.rI~flall1",)CCL.'I*skl~cclt~~,~~'-*-'~tlJstr1<>.r.ps~rt'1frtrtl~.".f'7':.~6".~(1~~1~tC.I5~"z"e~\.~I~rJ)~$,~Iltt~~10>>qgJJ~ter,rrI~ISter%rr~~te11~~rz-zzzttsrsrazstJas~~aa1lr11msr~'1rrsIrr.IeezstreI'tersrtteraH>>~1rsiraratarrrrI~qIJftzIRsrstrrr/'rmrPf. HUMANENGfIEERflaCHECKl.lST99,WALK-THROUGHEVALUATIONGUIDELINEREF."EVALUATIONGUIDELINE20e7.8.Whencontinuousmonitoringorthetimingofcontrolactionsarecritical,operatorsdonothavetoleavetheprimaryoperatingarea.Controlroommanningandtaskassignmentsensurecom-pieteandtimelycoverageofcontrols,displays,.andotherequipmentduringplantopera-tion.6.1.1.1b..6.1.1.2aoActivitiesandtaskassign-mentsareplannedtoensurepropercoordinationofadditionalpersonnelwhoaugmentthenormalcrew.Controlroomarrangementminimizesinterferencebetweenmembersoftheoperationalcrew.Potentialtask.loadingisevaluatedtoensurethateveryunitcanbecoveredade-quatelyinallsituations.Controlsareeasilyadjustedwith'herequiredlevelofprecision.6.1.1.2b..6.1.13d.(2)'.1.3.1Co6.4.1.1a.(2)Eachcontrolisthetypenor-mallyanticipatedfortheoperationconcerned.6.4.1.1c.(2)Duplicationofcontrolsnot64.1.1occur,exceptforaspecificb.(2)reason.9.10.12.13.14.15.16.Controlsanddisplaysareassignedtoworkstationssoastominimizeoperatormove-ment.Controlactuationdoesnotresultininadvertentactuationofanadjacentcontrol.Avisualdisplaythatismoni-toredduringcontrolmanipula-tionislocatedsufficientlyclosesoanoperatorcanreadit,clearlyandwithoutparallaxfromanormaloperatingposture.Controlsanddisplaysarelocatedsothatdisplaysarenotobscuredduringcontroloperation.Displaysarenotobscuredbymanipulation.Thereisnolagtimebetweensystemconditionchangeanddisplayindication.Whenthereisatimelagbetweencontrolactuationandultimatesystemstate,thereisanimmediatefeedbackindica-tionoftheprocessanddirectionorparameterchange.Feedbackfromthedisplayisapparentforanydeliberatemovementofacontrol.6.8.1.1aOCDI-86.8.3.1b.CON-16.9.1.1a.CDI-86.9.1.1b.CDI-106.9.1.2b.(7)CDI-116.9.3.1c.(1)6.9.3.1c.(2)6.9.3.2d. 0(:>>>>>>~~>>>>a>>we<<~~>>'io'y>>AgoMu>>p~aoaoaw+leva<<.'>>"~OP~~I"l~jarSt>Q)AIUJ~'.9Imlj.~iv~4~'l>>4uAAw~Q+~4'0vo>>o>>oosw~w>>~14~(o>>c'j4.JiIL'4IIIL.X.B.bocB-IQDozcsyafqsfbbnsafolsno'3aot.cnafScScQlov.oSbenpfaoc0vom'lose'IeqoGKJrninlrnOSoSrlenl>>L.L.E.b'(>>ll>>4(~~g(>>cl'l>>lgoiform>>>>,(lawq~JnaSc"qc.,),':."j7t";r,FIJ(p9$"QVS'>>489'P:X,Z.S.bodCL-NODr.L49.boOS-IQDLoci4moobQL-IQD;S.r.Q.bI(r>dLL-IGDiLZA'.b!I(L>.oilL.KP.bI(R).3,son@cobnoissusoslo".snotAoJSouSosSn(Ssevbani.AiSlut.es.JolSrrooSnooctbsAc'to-lnonlsfSarlSyafqefblcuJvA-cfuqincrnfolSAo3pnhubbaaoSyfsnafoIBusbaScoofafnoiSbr!9>na3aoSsleqoAaosomofoxcffclcqSvorUi(tvbncyhaefoSfpnrSclaqoJcmaoncAlo@.cluS"aq~lsoyafcl:fbbnaefoaSAoD9".ccgr3Jg'fbSG'0o"bcScoofJo<naopnhubbaavoadoSon.AoiScasqoydbeauo"doSonsaccyafqufQ.AofSsfuqfncmAe3vvSedemiSpcfonafslorFbncconan'3AoiSfbna3maSaya.AoJSsoibnfyafcpJbgCJanliSCaiecerISrlerIWbncnoiSsuS3sJoaSAooAssmSadcfelerIS,9SsSafnsSaye9SsmJSlu-cofbnrAsdbegleScibamminnbnccaoooaqerISTonoiSasSamclcqaonoiSoelfb~Qpncrf3~Of.crI.&LR.L.L.(~~rll)rksQ>>>>lffansfrr>>tk'3'oAloo9'lusrlJGSrie>>>Aplr."f:'iosps'.svc;3yfemi."bnc;...,ver',SObAC,Cyioiq.Jb,a!Oa.>>-SzeqOSACJqnnfaubSnenlqir~'r},R.X.L.b64L4Lob~Sfl~rrloJpgpglC(>)obcone'ggmtleSnl9PA'IOsir.L.~.L.b'3cJpnfbco"gasVoSofIS-ebsba"..~-ocn(r>>.L.L.<.b:bsSautbs(s'..L.L.4.b>Sondos'rr."(2'4dIoj)f39'"8-npf-ccksS)~Acae.'1;";",.lezucnaoSb:;A,;;.cYonoJScnioi,Offset!JGAAO'"6'"'rl'"-'vt3/3JffZ.CA.bI.bciya!qvfbvriSrnol'I93odbe93aSa;edff3b<Aclo)Snalaqqs.Jo;Snaoc'toSnemovom.bLtL.L.tti.b';(R).3(50ACqgSQiGrISao>b;~:r.~.,:.";,<<oben993>>l~3f>>=.."5r'HQE4hvoatwiPgA~Il%~~l>>~~>>~~~%~'aos~~owsosas>>sr+>>>>v HUMANENGINEERlNGCHECKllST100WALK-.THROOGHEVALUATlONGUlDELllIlEREF.EVALUATlOIGUlDELlNEREl'.~Redundancyinthepresentationofinformationislimitedtocaseswhereneededforbackup-.ortoavoidexcessiveoperatormovement.6.5.1.1d.VD-2VD-6I,e,AD%'Dh'FOPhOCTc'PT'9%'%7hTfTh'PThM ItI,jlIjI+'",jII'(I,'IjI>>'jjI.jtj"jlj,',I',,',l,<<,'i'g,,',jJQ'JI,IjIL)'--,I'",'i'j'jLli,aÃ<j,,"Ii'.IJIIIII!I!jI'-I'-rj~~Qk~/'IIjliiIjtlIIIkI[ij$iIC }}

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