ML17054B512

Vols 1 & 2 of Rept of Findings of Independent Review of Key Technical,Interface & Const Concerns.

ML17054B512
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Site:	Nine Mile Point
Issue date:	05/13/1985
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REPORTOFFINDINGSOFINDEPENDENTREVIEWOFKEYTECHNICAL,INTERFACEANDCONSTRUCTIONCONCERNSNINEMILEPOINTNUCLEARSTATION-UNIT2NIAGARAMOHAWKPOWERCORPORATIONVOLUMEIPreparedbySTONE&WEBSTERENGINEERINGCORPORATIONNEWYORKOFFICEJ.O.NO.12177.73May13,1983ReviewProjectEngineer5<</3gdA.A.Patterson850328DCK05000400543850322PDRADDPDRASToNr.&WaoSTRR Pk TABLEOFCONTENTSVOIUMEISection1.02.02.12.22.32.42.52.62.72.82.92.102.113.03.13.23.33.43.53.63.73.84.04.14.24.34.44.54.64.74.85.05.15.25.35.45.55.65.75'5.9TitleINTRODUCTIONANDOBJECTIVESCONCEUSIONSGENERALSERVICEWATERSYSTEM-GENEEulLONSITEEMERGENCYACPOWERSYSTEM-GENERALPOWERELECTRICALCONTROLSYSTEMSENGINEERINGMECHANICSSTRUCTURALEQUIPMENTQUALIFICATIONINTERDISCIPLINECOMMUNICATIONCONSTRUCTIBILITYSCOPEOFWORKPOWERELECTRICALCONTROLSYSTEMSENGINEERINGMECHANICSSTRUCTURALEQUIPMENTQUALIFICATIONINTERDISCIPLINECOMMUNICATIONSCONSTRUCTIBILITYMETHODOIOGYPOWERELECTRICALCONTROLSYSTEMSENGINEERINGMECHANICSSTRUCTURALEQUIPMENTQUALIFICATIONINTERDISCIPIINECOMMUNICATIONCONSTRUCTIBELITYDETAILEDRESULTSPOWERELECTRICALCONTROLSYSTEMSENGINEERINGMECHANICSSTRUCTURALEQUIPMENTQUALIFICATIONINTERDISCIPLENECOMMUNICATIONSCONSTRUCTIBILITYSTATISTICALRESULTS~Pae2-12-12"12-12-22-32-42-42-52-52-62-63~]3-13-43-63-73-93-93-103-104-14-14-14-24-24-34-34-34-45-15-15-55-95-125-165-195-205-215-27STQNKthWcssTKR Il.

APPENDIXPOTENTIALDISCREPANCYIOGCONSTRUCTIBILITYREVIEWFINDING'OGPOTENTIALDISCREPANCYFORMSCONSTRUCTIBILITYREVIEWFINDINGSShoveCkWaseca I

1.0INTRODUCTION

ANDOBJECTIVESAtaskforcewasformedtoprovideanindependentdesignreviewofspe-cifictechnicalareasofengineering,design,andconstructionactivitiesontheNineMilePoint"NuclearStation-Unit2(NMP2).ThereviewwasauthorizedbyNiagaraMohawkPowerCorporation(NMPC)initsLetterNo.5668datedFebruary1,1983.ThereviewwasperformedbyanindependentStone6WebsterEngineeringCorporation(SWEC)taskforcecomprisedofengineersnotconnectedwiththeNMP2Project.Theyusedthelatestrevisionsofalltheapplicableprojectdocumentsdescribingthesystems,equipment,structures,andpro-ceduralandconstructionconcernsinthescopeofwork.Theleadengineersonthetaskforceallhavehadsupervisoryexperienceorhaveservedinleadengineercapacitiesonseveralnuclearprojects.Theyaretechnicallyqualifiedinallphasesofengineeringanddesignintheirspecificdiscipline.Thereview,conductedover12weeks,coveredsignificantportionsoftwoimportantplantsafety-relate'dsystemscategorizedby62specifictasks:theservicewatersystemandtheonsiteemergencyacpowersystem.Inaddition,theflowofdesigninformationandtheprocessofincorporatingchangesintotheengineering,design,'ndconstructionofplantsystemsandstructureswerereviewed.Thereviewteamrepresentedeachmajortechnicaldiscipline(power,electrical,controlsystems,engineeringmechanics,andstructural)aswellasconstruction.Supportedbysevensupportengineersduringthepeakreviewperiod,thereviewteamappliedapproximately3,700man-hourstoreviewmorethan450documents,inaddi-tiontoreviewingapplicablesectionsoftheFinalSafetyAnalysisReport(FSAR).Thereportconsistsoftwovolumes.Thisvolumeincludestheintroduc-tionandobjectives,overallconclusionsbothonaspecifictaskbasisandadisciplinebasis,scopeofwork,reviewmethodused,anddetaileddescriptionsofeachtaska'ndrelatedfindings.Allthepotentialdis-crepancyreportsandconstructionfindingsareincludedintheappendixofthisvolume.Alltheproceduresusedtoperformthereviewareincludedinthesecondvolume.Thesystemsselectedhaveahighdegreeofimportancetoplantsafetyandarecomposedofdiversedisciplinetasks.IncludedareawiderangeofactivitiesthatSWECexecutestoengineer,design,purchase,anddefineconstructionrequirements.Thesesystemswereselectedonthebasisthattheengineeringwasclosetocompletionandhasundergonearepresenta<<tivechange.process.Thesesystemswerealsousedtoprovidedataforevaluatingtheinter-disciplinecommunicationprocessandmakingjudgmentsontheconst'ruc"tibilityofdesigns.ThesesystemswereexpectedtoprovideanadequatesampleofNMP2Projectengineering,design,andconstructionactivitiesinordertoprovidefindingsreprese'ntativeofamoreextensivereview.STONcthWcesTKR Ill Thethreespecificareasthatthisreviewencompassedwere:Technical-plantsystems-Servicewatersystem-Onsiteemergencyacpowersystem~Interdisciplinecommunication~ConstructibilityofthedesignsEachofthetwoplantsystemswerereviewedtoensureconformancetoapplicabledesigncriteriaandFSARcommitments,andtheabilitytoper--formitsintended-function.Selectedcomponentswerereviewedfortheircompliancewiththeprojectequipmentqualificationprogram.Eachsystemwasreviewedforcompliancewiththeapplicablepost-TMIrequirementsdefinedinNUREG-0737andforsinglefailures,includingareviewoftheFailureModesandEffectsAnalyses(FMEA).Interdisciplinecommunicationconsidered-theproperflowofengineeringinformationfrominceptiontofinaldesignandthatthepropercommunica-,tionanddataflowexistbetweenallengineeringdisciplines,designfunctions,vendors,and.theconstructionsite.Inaddition,thechangecontrolprocesswasreviewedtoconfirmthatallengineeringchangeswereincorporatedintotheprojectdocumentsasrequired.Documentsandprocedures,wererevi'ewedforconstructibilityinaccordancewiththefollowingcriteria:~Minimizetheeffectsfromsupportinterferences~Documentsdefineconstructibledesigns~DocumentsareclearandcompleteTheconstructibilityreviewalsoconsideredtheimplementationofthesuggestedactionscontainedintheTaskForceReportonReviewofPipingErectionProblems,issuedMarch19,,1981(referredtoastheITTGrinnellReport).OpenItemReports(OIRs)wereissuedifanapparentinconsistencywasfound;thatisafailuretomeetastatedcommitmentand/orthatthesys-temorprocedurewouldnotperformtherequiredfunction.IfanOIRremainedunresolved,itwasthenissuedasaPotentialDiscrepancy(PD).Twenty-sevenPotentialDiscrepancyReportswereissued.Thesereportssummarizedthebasicreviewfindingsinspecificterms.Thedevelopmentofrecommendedcorrectiveactionswasnotincludedwithinthescopeofthisreview.1-2STONE8WcSSTCR IlII

2.0CONCLUSION

S2.1GENERALThereviewresultedinnumerousfindingsofdifferentrelativeimpor-tance.'hissectiondescribestheconclusionsdrawnfromthefindingscontainedinSection5.ofthisreport.ThetwoplantsystemsreviewedwilloperateinaccordancewiththeirrequirementsasdefinedintheFSAR;however,somenoncompliancewithDesignCriteriaandFSARcommitmentswasfound.Detailedconclusionstatementsforeachsystemandforeachdisciplinearelistedinthissection.Areviewofinterdisciplinecommunicationconcernsrelatingtotheflowofdesigninformationbetweenalldisciplines,includingvendorsandcon-structiongroups,indicatestheprojectgenerallyisfollowingtheiradministrativeproceduresandthatadequatecommunicationexists.Thereareconclusionstatementsinthissectionthatoutlineseveralspecificconcerns.The.reviewofconstructibilityconcernsindicatesthattheconstructionschedulecanbemaintained,althoughthereareseveralspecificareasthatneedimprovementtofurtherensuremeetingtheschedule.Thesecon-cernsareoutlinedinthissection.2.2SERVICEWATERSYSTEM"GENERALBasedonthereviewresultsforthesafety-relatedmodesofservicewatersystemoperation,itcan.beconcludedthatthesystemhasbeenadequatelydesignedtoservicetheplantcoolingrequirements.Thepipingandpipesupportdesignoftheservicewatersystemappearstobeadequatefortherequiredservice.However,forsomepipestressandsupportdesigns,furtherdocumentationmayberequiredtodemonstratecompliancewithallFSARcorn'mitments.Ageneralrevisionoftheservicewatersystemhydrauliccalculationsiscurrentlybeingconductedtoaccountforsmallborepipingdesignandotherchangestothesystemserviceinrecentyears.Thisanalysisisproceedinginareasonablemanner.Theresultsshouldbecarefullymoni-toredforpossibleimpactonplantdesign.2.3ONSITEEMERGENCYACPOWERSYSTEM"GENERALThereviewoftheonsiteemergencyacpowersystemhasindicatedthatitwillperformtheintendedfunctionasdescribedintheFSAR.However,themarginavailableundercertainoperatingmodes,e.g.,auxiliaryboilertransformersupplyingtheemergencybus,islow.SomedeviationsfromDesignCriteriaandFSARcommitmentswerefound,andtheseneedtoberesolved.2-1SToNK8WR$$TER IIIII 2.4POWER2.4.1Exceptforaminordiscrepancyincoolingloadversuscommittedservicewaterflowforthedieselgeneratorcontrolrooms(seeSection5.1.2.1),servicewaterflowratescommittedtointheFSARareadequatetomeetthespecifiedcoolingrequirementsoftheessentialcomponentslistedinTable9.2-1.2.4.2Theservicewatersystemdesigntemperatureandpressureareadequate.2.4.3ThereisadequateNPSHandpumpsubmergenceforallcrediblemodesofservicewatersystemoperation.2.4.4Thedesigntopreventfreezingattheoffshoreandonshoreintakesisadequate.2.4.5Thedesigntoutilizeoneofthetworedundantintakestructurestodis-chargeservicewaterifthenormal'dischargepathisunavailableforserviceisadequate.2.4.6BiologicalfoulingoftheservicewatersystembyAsiaticclamsisnotaconcernfortheNMP2site.2.4.7TheTMXrequirementsthatrelatetocoolingprovidedbytheservicewatersystemarebeingmet.2.4.8Valvesomittedintheservicewatersystemfailureanalysismustbeincludedforcompletenesstocomplyments.However,theeffectsofincludingandassumingtheomittedvalvesisnotexpectedtoleadtocompleteternfailure.modesandeffectswithNRCrequire-singlefailuresofservicewatersys-2.4.9Adequateventilationhasbeenprovidedintheservicewaterpumpbays;however,abackupcalculationisneededtocompletethepapertrail.2-2sToNcAwcB$TERARk IIII 2.4.10EngineeringChangeNotices(ECNs)arebeingeffectivelyincorporatedintotheservicewatersystemflowdiagrams.2.4.11Exceptforminordiscrepancies,ventilationsuppliedinsupportoftheonsiteemergencypowersystemappearstobeadequate.2.4.12ThecalculationsforthestandbyandHPCSdieselgeneratorfueloilstor-ageandoiltransferpumpcapacitydonotcurrentlydemonstratecom-pliancewiththerequirementsofANSIStandardN195-1976.TomeettheFSARcommitmentsinthisregard,thecalculationsmustberevised.2.4.13SpecificationNo.NHP2-E031A,DieselGenerator,requiresanupdatingofitsdatasheetstoreflectactualinterfacedataforairstartupandcoolingwater.2.4.14SinglefailuresidentifiedintheFMEAanalysesforsystemssupportingonsiteemergencyacpowersystemsarebeingadequatelyaddressedbytheproject.2.5ELECTRICAL2.5.1ElectricalcalculationsincertainareasdidnotcomplywiththeFSARcommitmentsandDesignCriteriarequirements.2.5.2Acalculationtosupporttheminimumcablesizeselectedforshort-circuitdutyinElectricalDesignCriteriaEDC-4doesnotexist.2.5.3Themainone-linedrawingswereconsistentwiththeFSARcommitments.Portionsoftheemergency4.16-kVbusone-linedrawingswereinconsistentwiththeFSARcommitmentsandESKs.2.5.4TheelectricalspecificationsareingeneralcompliancewithFSARrequirementsandcalculationresults.2-3STONC&WcNSTKR I'III 2.6CONTROLSYSTEMS2.6.1Thelogicsystemandelectricalelementarydesignareingeneralagree-mentwiththeFSARoperationalrequirements.However,basedonthenum-berofminordiscrepanciesidentified,additionalcheckingshouldbeper-formedtoprovideassurancethattheelectricalconstructiondrawingshavenotincorporatedtheseinconsistencies.2.6.2ThemaincontrolboarddesignwillnotmeetcertainguidelinesofNUREG-0700concerningHumanFactorsReview;modificationsmayberequired.InFSARSection1.10,theNMP2projecthascommittedtoafinalcontrolroomdesignreviewbasedonguidelinesofNUREG-0700during1983or1984.2.6.3Specialservicecontrolvalvesarebeingpurchasedbasedonunverifiedresults.Vendorcalculationsarerequiredtoensureproperfunctionwithinsystemrequirements.2.6.4Althoughone*potentialdiscrepancywasidentified,theinstrumentdesigndrawingsweregenerallyinaccordancewithacceptabledesignpracticesandreflectedtheproperflowofengineeringinformation.2.6.5Additionalverificationisrequiredtoensurethatinstrumentationpara-metersarecompatibleforequipmentwithinthesamemeasurementloop.2.7ENGINEERINGMECHANICS2.7.1ServicewaterpipingappearstobeadequatelydesignedandmaximumstressesarewithinallowablestressesasspecifiedintheFSARandASMEIIICode.However,someadditionaldocumentationisrequiredinordertodemonstratethatallnecessaryFSARcommitmentshavebeencon-sidered.2.7.2Thepipesupportdesignappearstosatisfyitsintendedfunction,althoughnotalldesignloadswerecurrent.Insomevariablespringhangerdesigns,documentationwasunavailabletoconfirmwhethertheFSARcommitmenttodesignfordynamicmovementsismet.Areviewisrequiredtoverifythatthevariablespringhangerscanaccommodatedynamicmove-ments.2-4STQNcttWK8$TER IIIII 2.7.3Theservicewaterpumps,thermalreliefvalves,and4,160-Vmetal-cladswitchgeararequalifiedtoperformtheirsafety-relatedfunctionduringapostulatedseismicevent.2.7.4CalculationsthatprovidethedesigninputloadstothesuppressionpoolhydrodynamicARSgenerationaresatisfactory.2.8STRUCTURAL2.8.1Withtheexceptionofthescreenwellbuildingdischargebaywalls,thereviewof'tructureswaslimitedmainlyt'osecondarystructuressuchasembedmentplates,cabletraysupports,andconduitsupports.Thereviewresultsweresatisfactoryintheareasreviewed.2.8.2ThedeterminationoftheallowableloadsonstandardembedmentplatestoincludetheflexibilitycriteriaofNRCIEBulletin79-02hasnotyetbeencompleted,butitappearsthatanappropriateanalyticalmethodisbeingused.,ThesedatawillbeusedinafutureStructuralVerificationPrograminwhichalloftheappliedloadsfrom'pipesupports,cabletrayandconduitsupports,andseismicductsupportsoneveryembedmentplatewillbecompiled.Alloftheembedmentplatesthenwillbecheckedfortheirabilitytoresisttheappliedloads.*Thedesignmethodsusedforthecabletraysupportsandconduitsupportswerefoundtobe'orrect,buttheimpactofthenewseismicamplifiedresponsespectraonthedesignsmustbeassessed.NewseismicamplifiedresponsespectraandprofileswereissuedfortheprimarycontainmentandthereactorbuildinginDecember1982.Stilltobeassessedisthepos-sibleimpactofthenewresponseprofilesonthestructures.2.8.3Thedesignofthedischargebaywallsinthescreenwellbuildingwasreviewedandfoundtoprovideadequatestrengthtoresisttheappliedloads.2.9EQUIPMENTQUALIFICATIONTheEquipmentQualificationProgramhasthemechanicstoprovideadequatesupportofFSARSection3.11commitments;however,proceduresfortheimplementationoftheprogramarelackinginboththeprojectandEquip-mentQualificationSectionareas.Documentsthatwillprovidetheneces-sarycontrolsanddirectionsfortheimplementationoftheprogramareinreviewandapprovalcyclesandmustbeissuedforuseassoonaspos-sible.AdherencetothesenewdocumentsandprocedureswillbenecessarytoensurecompletesupportoftheFSARSection3.11commitments.2-5STONC0WcBSTKR IIIII 2.10INTERDISCIPLINECOMMUNICATIONTheinterdisciplinecommunicationreviewhasindicatedthat,ingeneral,theprojectisfollowingacceptableadministrativeproceduresandthatadequatecommunicationexistsbetweenvariousprojectdisciplines.TheinterdisciplinecommunicationfindingslistedinSection5.7willnothaveanyadverseimpactonthedesignphaseandsubsequentconstructioneffort.2.11CONSTRUCTIBILITIt'.11.1ITTGrinnellReportTherecommendationsoftheMarch1981reportforimprovingtheITTGrin-nellefforthavebeenimplemented.Thereisroomforcontinuedimprove-mentand'theneedtobeginconcentratingonsystemcompletion.2.11.2SupportsInterferencesThereisnogenericproblemcausingproject-widesupportsinterferences.Themanyreportedinterferencesarenotatypicalgiventheproject'ssizeandcomplexity.LimitationsimposedbyprojectdocumentsonconstructionresolutionofCategoryIorseismicsupportinterferences,paxticularlyconduitsupports,hascontributedtothenumberofreportedinter-ferences.Inaddition,reworkofelectricalconduittoclearinter-ferenceswithsupportsmaybe30percentforscheduledconduitandmore-forunscheduledconduit.Theoverallinstallationscheduleshouldnotbeaffectedprovidedcon-tractorsandsiteengineeringacknowledgethescopeofexpectedinter-ferencesandworktogetherforatimelyresolutionofthem.Anyaddi-tionalflexibilitygiventotheconstructionforcestoresolveinter-ferencesthemselves,withoutengineeringinvolvement,wouldhelpinachievingtheoverallconstructionschedule.Theconstructibilityofthesystemssupportedbyembedmentplates,suchaspiping,cabletrays,conduits,'andseismicductworkcouldbeaffectedbytheresultsofthefutureStructuralVerificationProgram.Theresultsoftheprogramcouldpossiblyshowanoverstress'onditioninexistingplates,leadingtorequiredsupportchanges.Itisimportantthatthetimingoftheprogrambesuchthatanyrequiredsupportchangescanbemadewithoutimpactingtheconstructionschedule.2.11.3InstallationPracticalityTheengineeringproductsarebyandlargeconstructibleandgenerallyprovideforapracticalinstallation.Therelativelyfewfirst-issuedocumentsremainingtobeissuedandthoserequiringrevisiontobring"themto100percentcomplete,e.g.,Cate-goryI/seismicconduitdrawings(EE),andtubingdrawings(EK)in.thereactorbuildinganddieselgeneratorarea,couldbenefitfromadditionalcheckingand/orconstruction(SWECorcontractor)review.2-6STONK8(WCBSTI.'R IIIIIII Greaterinstallationtolerancesacrossalldisciplineswouldgenerallyenhancethepracticalityofinstallation,providedcontractorsexhibitawillingnesstoutilizethemonlywhenapracticalinstallationcannotbeachievedasgivenonthedrawing.2.11.4ClarityandCompletenessofDrawingsAstoclarity,nogenericproblemsaffectingremainingdocumentsappeartoexist.Constantattentiontotheclarityofvendordrawingsandlaterrevisionsofengineeringdrawingsisrequired.Astocompleteness,thelargenumberofESDCRsagainstengineeringdraw-ingshasre'nderedmanydrawingsincomplete.awhiletheconstructionforcesmaybefullyawareofthechangesaffectingthedrawingstheyareusing,changesshouldbeincorporatedassoonaspossible,andcleandrawingsshouldbereissuedtominimizethe"papertrail"inthoseareaswhereworkisstillinprocess.Also,smallboredrawings(particularlyDPsinthereactorbuilding)need.toprovidedimensionsforlocatinghangersfrombuildinglinesandtoaccountfordimensionsthatdonotcloseorprovideconstructionwithsufficientflexibilitytoinstallthesmallborepipingandtubingtosuitfieldconditionswhilemaintainingthebasicroutinggivenbythedrawing.2.11.5GeneralTheconstructibilityreviewwassomewhatdifferentfromtheengineeringapproach,asnostatisticaldataorpastdetailedreportswerereviewedandassuch,anyobservations,findings,orsuggestedactionslistedaremoresubjectivethanquantitative.Reviewofcertainengineeringdocu-mentsandinterviewswithindividualsclosetotheprojectindicatedthatnoindividualtask,seriesoftasks,orindustrygenericproblemscanbeidentifiedasbeinginsurmountable,orgivecausethattheconstructionschedulecannotbeachieved.Thereareconsiderableareasofconcern,suchasfutureregulatoryagencyactions,engineeringtobecompleted,unfinishedprocurementactivities,andimprovementincontractorefficiencyandproduction.However,withallthemechanismsavailable,adedicationtoefficientwork,andquickresponsestoproblems,theschedulecanbemet.2-7STONK&WKBSTKR IIII 3.0SCOPEOFWORK3.1POWER3.1.1ServiceWaterSystem3.1.1.1TaskP-SWP-1VerificationofServiceWaterFlowRatesTheoriginalscopeinvolvedreviewingselectedfinalhydrauliccalcula-tions;however,allofthosecalculationsarecurrentlybeingrevised.Therefore,thereviewwasredirectedtoassessthemethodologybeingusedinthecurrentrevision.Thehydraulicmodel(flownetwork)wasreviewedagainsttheflowdiagramstoconfirmdefinitionofthe=linksandnodepoints.Selectedinputdatacalculationswerereviewedformethodologyandinputvalues.Thehydrauliccomputercodewascheckedforqualifica-tionandforcomparisonwithactualnetworkflows.Resultsofoneoftheoriginalhydrauliccalculationswerecheckedforadequacyoflinesizingandflowvelocities.3.1.1.2TaskP-SWP-2VerificationofComliancewithTMIReuirementsofNUREG-0737,TherearetwoTMIrequirementsthatrelatetocoolingprovidedbytheservicewatersystem:1)arequirementtosupplyreactorcoolantsystem(RCS)recirculationpumpsealcoolingafteralossofoffsitepowerand2)arequirementtoprovideair-conditioningtothecontrolroomafteraIOCA(Note--servicewaterprovidesaheatsinktothechilledwatersys-tem).Flowdiagramsandlogicdiagramswerereviewedtoconfirmthatadequatepipingandvalvingwasprovidedtomeettheserequirements.Specifica-tionsandcorrespondencewithGEwerereviewedtoconfirmthatservicewaterflowrateswereadequatetomeetthesere'quirements.Thecalcula-tionsizingtheservicewaterchillercondenserrecirculationpumpswasreviewed.3.1.1.-3TaskP-SWP-3AdeuateVentilationofServiceWaterPumAreaCalculationsandspecificationswerereviewedtoconfirmadequatecoolingcoilsizing,airflow,andservicewaterflowtomaintaindesigntempera-turesintheservicewaterpumpbays.3.1.1.4TaskP-SWP-4VerificationofServiceWaterSstemFlowDiaramsTheservicewatersystemflowdiagramswerereviewedagainstallSWPengineeringchangenotices(ECNs)toensurethatchangeswerebeingin-corporatedcorrectlyandaccordingtoprojectprocedure.3.1.1.5TaskP-SWP-5Verificati'onofServiceWater.PuaeNPSHCalculations,specifications,andflowdiagramswerereviewedtoconfirmadequacyofavailableservicewatersystempumpNPSH.Thesecalculationscoveredconsiderationsofheadlossintheintakestructureandintake3-1SToNK8(WcBsTER II

~=--W'v~~s',6->>~4~-.~~~'~bays,submergencerequirementsforvortexing,andpressuredropinthepumpsuctionpipingforvariousmodesofsystemoperation.3.1.1.6TaskP-SWP-6Sinle-FailureAnalsisThefaulttreeandfailuremodesandeffectsanalysis(FLEA)fortheser"vicewatersystemwerereviewedforsinglefailures.'hefaulttreestructureanddevelopmentwerereviewedagainsttheflowdiagrams,andareviewofthefaulttreeandtheRKAforcompletenesswasconducted.3.1.-1.7TaskP-SWP-7AdeuacofDesintoPreventFreezinattheServiceWaterIntakeCalculations,flowdiagrams,andlogicdiagramswerereviewedtoconfirmtheadequacyofthedesigntopreventfreezingattheservicewaterin-take.Thereviewincluded.thedesignforheatingtheoffshorebarrackstopreventadherenceoffrazilice,andthelinesizingandflowrequiredforthescreenwelltemperingline.'ogicdiagramswerecheckedforpropermonitoringandalarmsrelatedtothesetwofunctions.3.1.1.8TaskP-SWP-8VerificationoftheCaabilitoftheIntaketoProvideanAlternateDischarePathforServiceWaterSincetheservicewaterdischargetunnelanddiffuserarenotCategoryIstructures,theplantdesignincludesthecapabilitytouseoneofthetworedundantintakesasadischargeifthenormaldischargepathwayisunavailable.Calculationsandflowdiagramswerereviewedtoconfirmadequateflowandservicewaterpumpoperationunderthiscondition.3.1.1.9TaskP-SWP-9ControlofBioloicalGrowthNRCISEBulletin81-03identifiedthepotentialforflowblockageinser-vicewatersystemsduetoextensivepluggingbyAsiaticclams.TheFSARandotherdocumentationwerereviewedto,ensurethatadequateprecautionshavebeentakentoaddresstheNRC'sconcern.3.1.1.10Ta'skP-SWP-10VerifSelectedHeatLoadCalculationsandAdeuateCoolinWaterforSecifiedHeatLoadsSpecifications,correspondence,andvendordrawingswerereviewedagainstFSARcommitmentstoconfirmthatadequateservicewaterflowhasbeenprovidedtoessentialcomponents.'hissupplementedthedetailedreviewoftheunitcoolerdesignsandheatloadcalculationsconductedinTasksP-EPS"1,P-EPS"2,andP"SWP-3.3.1.1.11TaskP-SWP-11VerifAdeuacofServiceWaterSstemDesinPressureandTeeratureThecalculationthatdeterminedtheservicewatersystemdesignpressureandtemperaturewasreviewedagainstcurrentspecificationsanddrawingstoconfirmthatthesystemdesignisadequate.3-2STONN'thWKSSTCR

)ll 3.1.2OnsiteEmergencyACPowerSystem-(EPS)3.1.2.1TaskP-EPS-1AdeuateVentilationforStandbandHPCSDieselGeneratorsCalculationsandspecificationswerereviewedtoconfirmadequatecoolingcoilsizing,airflow,andservicewater.flowtomaintaindesigntempera-turesinthestandbyandHPCSdieselgeneratorareasandthegeneratorcontrolroomareas.3.1.2.2TaskP-EPS-2'deuateVentilationforEmerencSwitchearAreaCalculationsandspecificationswerereviewedtodeterminethatadequateairandwaterflowandcoolingcapacitywereprovidedtomaintainthedesigntemperatureintheemergencyswitchgearareas,includingbatteryrooms.Thereviewalsoconsideredventilationrequirementstopreventhydrogenbuildupinthe,batteryrooms.3.1.2.3P-EPS-3AdeuateFuelOilandPinCaacitforStandbandHPCSDieselGeneratorsCalculations,specifications,andflowdiagramswerereviewedtoconfirmadequatefueloilandpumpingcapacityforthestandbyandHPCSdieselgenerators.Thisincludedsizingoftheoilstoragetanks,thetransferpumpsfromthestoragetankstothedaytanks,andtheoiltransferlinesizefromthedaytankstothedieselgenerators.3.1.2.4TaskP-EPS-4ReviewofStandbDieselGeneratorSecificationAreviewofthestandbydieselgeneratorspecificationwasperformedforinterfaceinputsforfueloil,airstartup,andcoolingwaterrequire-ments.3.1.2.5TaskP-EPS-5Sinle-FailureAnalsis-OnsiteEmerencACNinefailuremodesandeffectsanalyses(FMEAs)forsystemssupportingonsiteemergencyacpowerwerereviewedforsinglefailures.WheresinglefailureswereidentifiedintheFMEAs,additionalreviewofpro-posedresolutionandconfirmationoffollowupactionwereincludedinthereview.AnindepthreviewofthefaulttreeforstandbydieselgeneratorfuelwasmadeagainsttheflowdiagramsandESKstoensureadequatefaulttreedevelopmentformechanicalandelectricalcomponents.3-3SToNR6WKBsTRR lIll 3.2ELECTRICAL3.2.1ServiceWaterSystem3.2.1.1TaskE-SWP-1ReviewofVoltaeProfilesatServiceWaterPumMotorTerminalsThevoltageprofilecalculationwasreviewedtoverifythatacceptablevoltagesweremaintainedattheservicewaterpumpmotorterminalsduringfullload,lightload,andmotorstartconditions.3.2.1.2TaskE-SWP-2ReviewofCableSizinCalculationfortheServiceWaterPumMotorThe5-kVcablesizingcalculationfortheservicewaterpumpmotorwasreviewedtoverifythattheFSARandDesignCriteriarequirementswerebeingmet,andthelatestavailablemotordatawasused.3.2.1.3TaskE-EPS-3ReviewoftheServiceWaterPumMotorSecifica-tionTheservicewaterpumpmotorspecificationwasreviewedtoverifythattheFSARcommitmentsandcalculationresultswereincludedinthespeci-fication.Thevendorqualificationreportwasreviewedtoverifycompliancewiththespecificationrequirements.3.2.2OnsiteEmergencyACPowerSystem3.2.2.1TaskE-EPS-1ReviewofReserveStationServiceTransformerSizinCalculationThereservestationservicetransformersizingcalculationwasreviewedtoverifythattheFSARcommitmentswerebeingmetandthelatestavail-ablemotorandloaddatawereused.3.2.2.2TaskE-EPS-2'eviewofStandbDiesel-Generator2EGS"=EGISizinCalculationThestandbydieselgeneratorsizingcalculationwasreviewedtoverifythattheFSARcommitmentswerebeingmetandthelatestavailablemotorandloaddatawereused.3.2.2.3TaskE-EPS-3ReviewoftheOnsiteEmerencACPowerSstemShort-CircuitCalculationTheshort-circuitcalculationwasreviewedtoverifythatthe250-MVAswitchgearpurchasedforbuses2ENS-SWG101and2ENS-SWG103wasadequatetomeetthe.short-circuitrequirements.3.2.2.4TaskE-EPS-4ReviewoftheVoltaeProfilesfortheOnsiteEmerencACPowerSstemThevoltageprofilestudycalculationwasreviewedtoverifythataccept-ablevoltagesweremaintainedatClass1Emotorterminalsduringlight3-4STONe&WaaSTaR

~~~~Il load,fullload,andmotorstartconditionswiththe115-kVswitchyardoperatingbetween95percentand105percentvoltagelimits.3.2.2.5TaskE-EPS-5ReviewoftheVoltaeProfilesfortheOnsiteEmerencACPowerSstemDurinaDeradedGridConditionThevoltageprofilestudycalculationwasreviewedtoverifythelowestvoltagevaluedeterminedatwhichthe115-kVswitchyardcanoperatetomaintainacceptablevoltagesatClass1Emotorterminals.3.2.2.6TaskE-EPS-6Reviewofthe5-kVFeederCableSizinCalculationThe5-kVcablesizingcalculationforcertainselectedloadswasreviewedtoverifycompliancewiththeFSARandDesignCriteriarequirements.3.2.2.7TaskE-EPS-7Reviewofthe600-VCableSizinCalculationThe600-VcablesizingcalculationforcertainselectedloadswasreviewedtoverifycompliancewiththeFSARandDesignCriteriarequire-ments.3.2.2.8TaskE-EPS-8Reviewof4.16-kVSwitchearSecificationThe4.16-kVswitchgearspecificationapplicabletobus2ENS-SWG101wasreviewedtoverifythatFSARcommitmentsandstationservicecalculationresultswereincludedinthespecification.Thevendorqualificationreportwasreviewedforcompliancewiththespecificationrequirements.3.2.2.9TaskE-EPS-9ReviewofStandbDieselGeneratorSecificationThestandbydieselgeneratorspecificationwasreviewedtoverifythatFSARcommitmentsandsizingcalculationresultswereincludedinthespecification.3.2.2..10TaskE-EPS-10Reviewof600-VPowerCableSecificationThe600-VpowercablespecificationwasreviewedtoverifycompliancewiththeFSARcommitments.Thevendortestdataandqualificationreportwasreviewedtoensurethatthespecificationrequirementsweremet.AttheApril5,1983,progressreportconference,NHPCaddedtotheorig-inalscopeofworkareviewoftheadequacyofthedataavailablein-houseforinsulationresistancetestingofamulticonductorcable.Theresultsofthisreviewwillbeissuedasanappendixtothisreport.3.2.2.11TaskE-EPS-llReviewofSelectedSafet-RelatedTraLaout~DrawinsSelectedsafety-relatedtraylayoutdxawingswerereviewedtoverifycom-pliancewiththeFSARandDesignCriteriacommitmentsforseparation.3-5STONC&WKBSTcR I~I'~I 3.2.2.12TaskE-EPS-12ReviewoftheOne-LineDrawinforthe4160-VEmerencSwitchear2ENS-SWG101The4160-Vemergencyswitchgear2ENS-SWG101one-linedrawingwasreviewedtoverifythattheFSARcommitmentsforrelayprotectionofstandbygene>>'ator,motors,andloadcenterfeederswereincorporatedintheone-linedrawing.3.2.2.13TaskE-EPS-13ReviewofMainOne-LineDrawinsThemainone"linedrawingsEE-1AandEE-13werereviewedtoverifythattheFSARcommitmentsforrelayprotectionofmaingenerator,maintrans-former,reservetransformer,auxiliaryboilertransformer,andnormaltransformerwereincorporatedinone-linedrawings.~f(lI3.3CONTROLSYSTEMS3.3.1ServiceWaterSystem3.3.1.1TaskC-SWP-1InstrumentLooDiaramVerificationTheinstrumentloopdiagramswerereviewedforcompliancewithFSARcom-mitmentsandconformancetosystemdesigndocumentssuchasflowdiagramsandECNs.3.3.1.2TaskC-SWP-2SafetandReliefValvesThesafetyandreliefvalvespecificationwasreviewedtoverifycompli-ancewiththeFSARcommitmentsandutilizationofpropersystemdesignparametersintheselectionandsizingofthevalves.Thisincludedre-viewingvendorsizingcalculationsfortheservicewatervalves.3.3.1.3TaskC-SWP-3IoicSstemVerificationThelogicsystemdescriptionsanddiagramswerereviewedtoconfirmsys-temoperationforautomaticandmanualcontrolasrequiredduring'LOCAand/orlossofoffsitepower.TheFSARcommitmentsforfunctionalandinstrumentationrequirementswereusedasthebasedocument.3.3.1.4TaskC-SWP-4ElementaDesinVerificationTheelementarydiagramswerereviewedforcompliancewithinstrumentationandcontroldeviceredundancy,separation,anddifferentmodesofopera-tionasspecifiedbythesystemlogicdiagramsanddescription.3.3.1.5TaskC-SWP-5DislaandInstrumentSelection3-6STONE&WEBSTERSectionsofthemaincontrolboardsrelatedtoservicewaterwerereviewedforcompliance.withinstrumentationrequiredbytheFSAR,includingpost-TMIrequirementsofNUREG-0737andRegulatoryGuides1.47and1.97.ThedisplayandinstrumentationasspecifiedintheFSARwerereviewedwithregardtotheiravailabilityandproperintegrationoftheinstrument-loopsignalswiththecorrespondingcomponents.Thisincludedreviewoftheappropriatedatasheetsforreadouts,transmitters,and Igi~I iyI(IILli>i1I~associatedelements.ThequalificationtestreportsfortheRosemounttransmitterswerereviewedforcompliancewithspecificationrequire-ments.3.3.1.6TaskC-SWP-6InstrumentDesinDrawinVerificationTheinstrumentpipingdrawingsanddetailsassociatedwiththeservicewatersystemwerereviewedforcompliancewiththeflowdiagrams,loopdiagrams,instrumentschedule,andproperpipingarrangement.3.3.1.7TaskC-SWP"7SecialServicesControlValvesThespecialservicescontrolvalvespecificationwasreviewedtoverifycompliancewiththeFSARcommitmentsandutilizationofpropersystemdesignparametersinselectionandsizingofthevalves.Includedwasthereviewofvendorsizingcalculationsfortheservicewatervalves.3.3.1.8TaskC-SWP-8InstrumentandAlarmSetpintsSetpointcalculationshavenotbeenperformedyetbytheNineMilePointNuclearStation-Unit2Project;therefore,thistaskwasnotaccom-plished.3.3.2OnsiteEmergencyACPowerSystem3.3.2.1TaskC-EPS-1StandbDieselGeneratorIoadinSeuenceZoicThestandbydieselgeneratorloadsequencelogicdescriptionandlogicdiagramsforDivisions-IandIIwerereviewedforcompliancewiththesystemfunctionalrequirementsasdescribedintheFSAR.3.3.2.2.TaskC-EPS-1StandbDieselGeneratorUndervoltaeLoad-SeuencinElementaDiaramsTheelementarydiagramswerereviewedforcompliancewithFSARcommit-mentsandlogicsystemdesig'nrequirements.3.3.2.3TaskC-EPS-3DislaandInstrumentSelectionTheelectricalpanelsinthecontrolroomwerereviewedforcompliancewithinstrumentationrequiredbytheFSAR,includingpost-TMIrequire-mentsofNUREG-0737andRegulatoryGuides1.47and1.97.Theinstrumen-tationandcontrolsportionofthedieselgeneratorspecificationwasreviewedforcompliancewiththesystemrequirements.3.4ENGINEERINGMECHANICS3.4.1ServiceWaterSystem3.4.1.1TaskN-SWP-OlReviewofDesinCriteriaforPieSt'ressAnalsis'hedesigncriteriaofthePipingEngineeringandDesignSpecificationwerereviewedforcompliancewithapplicableFSARlicensingcommitmentsandASMEIIIdesigncriteria.3-7STONE0WKSSTKR lI 3.4.1.2TaskN-SWP-02ReviewofServiceWaterPieStressCalculationsSelectedpipestresspackagesforpipingrunsfromtheservicewaterpumpbaytotheRHSheatexchangerwerereviewedforimplementationofFSARcommitments,thelatestrevisionofdesigninput,modelingtechnique,designloadingcases,andmaximumstresses.Asthepipinginthevici-nityofthedieselgeneratorcoolerisintheprocessofdesign,theywerenotincludedinthereview.3.4.1.3TaskN-SWP-03ReviewHdrodamicIoadsonSuressionPoolBoundariesThedesigninformationprovidedto,theStructuraldisciplineforhydro-dynamicARSgenerationwasreviewed.LoadingsonthesuppressionpoolstructureduetoSRVdischarge,condensationoscillation,andchuggingwereincludedinthisreview.3.4.1.4TaskN-SWP-04ReviewofEuimentuglificationforSeismicandHdrodamicLoads-ServiCeWaterPiinSeismicandhydrodynamicequipmentqualificationofselectedsafety-relatedequipmentwasreviewedforcompliancewithFSARcommitments.Twotypesofequipment,servicewaterpumpsandsafetyandreliefvalves,wereincludedinthisreview.3.4.1.5TaskN-SWP-05DesinInutControls-PieStressAnalsisProjectproceduresrelatedtothedesigninputcontrolofpipestressanalysiswerereviewed.TheseprojectprocedureswereSW-PP40,Adminis-trativeProcedureforPipeStress,andNMP2-40-07,DataRequiredforPipeStressAnalysisandPipeSupportDesign.3.4.1.6TaskN-SWP-06Reviewof'aorEuimentSuortsThesupportdesignofselectedsafety-relatedequipmentwasreviewedforcompliancewithFSARcommitments.Theequipmentwasdesignedinaccord-ancewiththeprovisionsofASMEIII,SubsectionNF.Thesupportdesignoftheservicewaterpumpwasreviewed.3.4.1.7TaskN-SWP>>07ReviewDesinCriteriaforPie'SuortDesinThedesigncriteriaofthespecificationforDesignandFabricationofPowerPlantPipingSupportswerereviewedforcompliancewithapplicableFSARlicensingcommitments.3.4.1.8TaskN-SWP-08ReviewofSelectedPieSuortDesinSelectedpipesupportcalculationswerereviewedforimplementationofFSARcommitments,correct.applicationofsupportdesignloads,loadingorientation,loadcombinations,andpipesupportlocation.3-8S7ONK6WKSSTCR

3.4.2OnsiteEmergencyACPowerSystemIci<JC~1i(I(1~(gil3.4.2.1TaskN-EPS-01ReviewofEuimentuglificationforSeismicIoad-OnsiteEmerencACPowerSstem(EPS)Theseismicqualificationof4,160-Vmetal-cladswitchgearwasreviewedforcompliancewithFSARcommitments.3.5STRUCTURAL3.5.1TaskS-STR-1StandardEmbedmentPlatesThemethodsusedtodeterminetheallowableloadsonstandardembedmentplatesfrompipesupports,cabletrayandconduitsupports,andductsup-portswerereviewed.'heanalyseswerereviewedforcompliancewiththeflexibility,criteriaofNRCIEBulletin79-02withtheattachmentsatanypointontheplate.3.5.2TaskS-STR-2CableTraySupportSystemsTheanalysisanddesignofCategoryIcabletraysupportsystemswerereviewedforcompliancewiththeFSARcommitments.Thereviewincludedtheapplicationofseismicandhydrodynamicloads,thedynamicanalysismethodused,andthedesignofthesupportmembers.3.5.3TaskS-STR-3ConduitSupportSystemsTheanalysisanddesignofCategoryIconduitsupportsystemswerere-viewedforcompliancewiththeFSARcommitments.Thereviewincludedtheapplicationofseismicandhydrodynamicloads,thedynamicanalysismethodused,andthedesignofthesupportmembers.3.5.4TaskS-STR-4BaseplateswithDrilled-inAnchorsforConduitSupportsThedesignofbaseplateswithdrilled-inanchorswasreviewedforcom-pliancewiththeflexibilitycriteriaofNRCIEBulletin79-02.3.5.5TaskS-STR-5ScreenwellBuildingDischargeBayWallsThewalldesigninthedischargebayofthescreenwellbuildingwasre-viewedforcompliancewiththeFSARcommitments.Thestrengthofthewallswasreviewedfortheirabilitytoresisttheappliedloads,includ-inghydrostaticloadsfromnormal.operationwithfaileddiffuser.3.6EQUIPMENT'UALIFICATION3.6.1Inaddition.toeachdiscipline'sreviewofequipmentwithinitsscopeofwork,theproject'sEquipmentQualificationProgramwasreviewed.ThereviewwasperformedtodetermineiftheFSARcommitmentsconformtocur-rentNRCrequirementsandiftheenvironmental,seismic,hydrodynamic,andoperationcriteriasupporttheFSARcommitments.Areviewofthe3-9STONE8WcssTCR lIalI projectprocedureforthequalificationofequipmentwasperformedtoverifythatadequatedirectionisprovidedforidentification,evalua-tion,classification,documentation,statusingofequipment,andifre-quired,theresolutionofconcerns.Thereviewincludedthequalifica-tionofbothelectricalandmechanicalequipment.3.7INTERDISCIPLINECOMMUNICATIONTheflowofdesigninformationamongengineeringdisciplines,designfunctions,andvendorswasreviewed.Selecteddesignchangeswerere-viewedforconsistencybetweendocumentstoensurethattheinformationwasincorporatedbyallaffecteddisciplines.3.8CONSTRUCTIBIIITYThescopeoftheconstructibilityreviewconsistedofreviewingfourtaskswhichwereselectedinagreementwithNiagaraMohawkPowerCorpora-tionasthesubjectsofmostconcern.Thesetaskswereasfollows:3.8.1FollowuponMarch1981ITTGrinnellReportThistaskincludeddeterminationofwhatrecommendations,ifany,remaintobeimplementedwiththepipingcontractor,ITTGrinnell.3.8.2SupportsInterferencesThistaskincludedareviewofselectedareasofpreviouslyidentifiedinterferenceproblemsbetweensupportsforlargeborepipe/equipment,smallborepipe,conduit,tubing,andcabletraytodeterminepotentialgenericproblemsforremainingworkareas.3.8.3InstallationPracticalityThistaskwasdirectedtowardsEngineeringproducts(specifications,drawings,andchangesthereto)todeterminetPeextenttowhichtheseproductsrepresentconstructibledesignandtoidentifyanypotentialgenericproblemsthatmaypertaintoengineeringproductsyettobeissuedforconstruction.3.8.4ClarityandCompletenessofEngineeringProductsIssuedforConstructionUse(DrawingQuality)ThistaskincludedareviewofspecificproblemsraisedbyConstruction(contractors)andthedeterminationofpotentialgenericproblemsthatmaypertaintoproductsyet.tobeissuedforconstruction.STONC&WcBSTKR IIlI 4.0METHODOLOGYTheFSARandtheDesignCriteriawereusedtoidentifycommitmentstobeusedforreviewoftheselectedtask.Thedrawings,calculations,speci-fications,etc,associatedwiththetaskwerereviewedfortheircom-pliancewiththecommitments,correctnessofdesignmethodused,andflowofinformationtransferbetweendisciplines.OpenItemReports(OIR)werewrittentoidentifynoncompliancewiththelicensingcommitments.IfanOIR,couldnotbeclosedafterdiscussionwiththe%1P2ProjectandNMPC,aPotentialDiscrepancyReport(PD)waswritten(seeFigure4-0).AllnecessaryformsdescribedinReviewProjectProcedureRPP-1werefilledouttocompletethetask(seeVolumeII).4.1POWERIneachcase,FSARcommitmentsandotherlicensingrequirementsintheNRCRegulatoryGuidesandNJREGdocumentswereusedasabasisforthereview.3Calculationswerereviewedagainstcurrentdrawings,specifications,andvendordocumentstoconfirmthatinputinformationandassumptionswerecurrentandconsistentwiththecharacteristicsofpurchasedequipment.Wherenecessary,independentreviewcalculationswereperformedtoensuretheadequacyofthesystemorcomponentstoperformitsintendedfunc-tion.Implementationofcalculatedresultsandinputassumptionswerealsocheckedagainstlogicdrawings,motorloadlists,andotherdocumentstoconfirmsuccessfultransferofinformationtoandfromotherdisciplines.FlowdiagramswerereviewedagainstEngineeringChange.Notices(ECNs),faulttreediagrams,andFailureModesandEffectsAnalyses.Specifica-tionswerereviewedagainstFSARcommitmentstoconfirmincorporationofcalculatedresults.Whenrequired,clarifyingdiscussionswereheldwithNMP2projectper-sonnel.4.2ELECTRICALCalculationswerereviewedtoverifycompliancewithFSARcommitmentsandDesignCriteriarequirements.Calculationinputswerecheckedtoverifythatthelatestavailabledatawereused.Wherenecessary,alternatecalculationswereperformedtoverifysizesofthecablesselectedbytheproject.Specificationswerereviewedtoverifythatthecalculationresults,FSARcommitments,andthelatestprojectdrawingswereincorporatedinthespecificationrequirements.Thevendor'stestdatafortheequipment,whereavailable,werereviewedtoverifythatthespecificationrequire-mentshavebeenmet.Thevendorequipmentqualificationreportswerereviewedtoverifycompliancewiththespecificationenvironmentalpara-meters.4-1STONKSWCBSTCR IIII One-linedrawingswerereviewedtoverifythatthecalculationresultsandFSARcommitmentshadbeenmet.Themotornameplatehorsepowershownontheone-l'inedrawingswascomparedwiththedataintheElectricalMotorandI,oadEquipmentList-PES400report.Theracewaylayoutdrawingswerereviewed.toverifythattheFSARcommit-mentforseparationwasbeingmet.Asrequired,discussionswereheldwithI,eadElectricalEngineerorhisdesigneetoobtainadditionalinformationorclarificationonthedocu-mentbeingreviewed.4.3CONTROLSYSTEMSTheengineeringdrawingswerereviewedinasequentialmannerwherethereviewdocumentinonetaskwouldprovideinputtothenext.Inallcases,thereviewincludedtheFSARcommitmentstoNRCrequirementssuchasregulatoryguidelinesandNUREGs.TheinstrumentloopdiagramswerecomparedtotheInstrumentSchedule,PES-212,andtheflowdiagramstoverifycompleteness,location,redundancy,andinformationtransfer.Thelogicdescriptionsanddia-gramswerecomparedagainsttheloopdiagrams,systemdescriptions,andFSARoperationalandinstrumentationrequirements.Thelogicdiagramswerethenutilizedasthebasedocumentindeterminingthecorrectnessoftheelectricalelementarydrawings(ESKs).TheseESKswerealsocheckedforcompliancewiththeFSARcontrolandannunciatorcommitments.Valvesizingcalculations,whereavailable,werereviewedtoverifyin-.corporationofthelatestsystemparametersandtheabilitytoperformtherequiredfunction.Thespecificationswerereviewedforuseofthecalculationresultsandincorporationofcoderequirements.Whereinstrumentsofdifferentspecificationswerepartofthesameloop,thedatasheetswerecomparedforsignal,range,andreadoutcompatibil-ity.Theinstrumentpiping'rawingswerereviewedagainsttheloopdiagrams,specifications,flowdiagrams,andinstrumentscheduleforcompletenessandproperinstallation.Selectedvendorenvironmentaltestproceduresandreportswerereviewedtodeterminequalificationoftheequipmenttothenormalandaccidentenvironmentspecifiedintheequipmentspecification.AppropriateNMP2proje'ctpersonnelprovidedclarificationwhenrequested.4.4ENGINEERINGMECHANICSDesignrequirementsweredeterminedbasedonareviewofdesigncriteria.TheFSARwasreviewedtosummarizethelicensingcommitmentsregardingASMEIIICodedesigncriteria,RegulatoryGu'ides,analyticalmethodsandcomputercodes.DesignSpecificationswerereviewedforcompliancetotheseFSARcommitments.4-2STONE6WcBSTRR III Ingeneral,forcalculations,designinputinformationsuchasdesignloads,designconditions,relateddrawings,andFSARcommitments,wasreviewed.Forcomputerizedanalyses,themodelingtechnique,loadingcombinations,andcomputerinputandresultswerereviewed.Inthecaseofseismicqualificationofequipment,thereviewincludedthequali-ficationcriteria,procedures,andvendorequipmentqualificationreport.Forthehydrodynamicloadtask,resultsoftheGeneralElectricSRVhydrodynamicanalyseswereusedasthebasisforinputtotheSWECcalcu-lations.DiscussionswereheldwithappropriateNMP2projectpersonnelforclari-fication,wherenecessary.4.5STRUCTURALRepresentativecalculationsforthestructurestobe.reviewedwereran-domlyselected.TheFSARcommitmentspertainingtothecalculationtobereviewedweredetermined.TheFSARwillusuallyspecifythegoverningcodesandstandardswithwhichthecalculationmustcomply.SpecificrequirementsintheStructuralDesignCriteriapertainingtothecalcula-tionwerealsoidentified,Noalternatecalculationsweredone.Allreviewswereoftheprojectcalculationsthemselves.Calculationinputwasreviewedforcompliancewithlicensingcommitmentsandthedesigncriteria.Theassumedstruc-turalconfigurationinthecalculationwasreviewedforconformancewiththeprojectdrawings.Formanualcalculations,thebodyofthecalculationwasreviewed.Forcomputerizedcalculations,thereviewwasforanalyticalapproach,model-ingtechnique,andcomputercodeinput.Whenrequiredforthereview,discussionswereheldwiththeleadandprincipalstructuralengineersontheprojecttoobtainthenecessarybackgroundinformation.4.6EQUIPMENTQUALIFICATIONAreviewoftheFSARwasperformedtoverifythattheplanthasbeenproperlyclassifiedandtoverifythatcommitmentsareinconformancewiththelatestNRCrequirementsforequipmentqualification.Theproj-ectprocedureforthecontrolofequipmentrequiringqualificationandtheEquipmentQualificationSectionOperatingProcedureManualwerere-viewedtoverifyifadequatedirectionisprovidedinordertosupporttheFSARcommitments.Discussionswereheldwiththeequipmentqualifi-cationsectionleadandsupportengineers,equipmentqualificationcoor-dinator,theassistantprojectengineer,andtheassistanttotheproject,engineerresponsibleforequipmentqualification.4.7INTERDISCIPLINECOMMUNICATIONThedocumentsforthetwosystemsselectedfortechnicalreviewwereusedasabasisfordeterminingadequacyofcommunicationbetweenallproject4-3SToNcthWcssTKR IIIII5II disciplines,vendors,andConstruction.Fortheservicewatersystem,itwasdeterminedthattheECNswereroutedthroughallaffecteddisciplinesandthatchangeinformationwasincorporatedintheprocurementandcon-structiondocuments.Theelectricalmotorandloadequipmentlist(PES400report)wasalsousedselectivelytocheckwhethervendor/specificationdatawereincorporatedinit.SelectedGeneralElectricmaincontrolboarddrawingswerereviewedtoverifythatinformationtransferoccurredbetweentheControlSystemsandElectricaldisciplines.4.8CONSTRUCTIBILITYAconstructibilityreviewwasperformedforeachofthefollowingareas:1)Harch1981ITTGrinnellReport,2)supportsinterferences,3)installationpracticality,and4)drawingquality.Eachreviewwasaccomplishedthroughdirectcommunicationwiththesite(contractorsandSWEC)andCHOCprojectpersonnel,bycheckingthecontentofselectedengineeringproducts,identifyinganddocumentingapparentproblemsbymeansofacommonpresentationformat,andevaluatingtheidentifiedproblemsintermsoftheirpotentialfordelayingtheremainingconstruc-tionactivities.4-4STONC&WcBSTCR IIIIIIII DEFINEI.ICEIISINOCDtthIlhfNISRfVIENDOCUhfNlADAINSICOhhlTNENISAREALLCOtthllhfNTS-hflfIIRIIEOtENIlfttREtORTIOIRIDISCUSSNITNNtlP2PROJECTDISCUSSNIIHNRP2PROJECTTESARE'INEREANTOTHERlfCHNICALISSUESRESULIINOFRDtlIttfREVIENTNAStROJfCIPROVIDEDFURINCRNODOCUttlHISIOSNONCOhttllttENIISNEITDISCUSSNIIHCLIENTtiotfONRfVIINFORttSASCDhhfNISNOTESOIRISRfSOLVEDICLOSEDINRIlfPOIENTIAL.OISCIIEtANCTREPOtllIPORINRITfTASNSUhhARTREPORINRI'IEREPORISFORDISCIPLINESUhhARTOFSTATIONANOOVERALLSTSifttSUhttARFFIGUREA~LOOICfORANALTIINONONChhhllhENTSAREtlEIIIPROJECTASSESSESIhPACIAN)RESOLVESIIJLINDEPENDENTDESIGNREVIEWCOMMITMENTANALYSISLOGICNINEMILEPOINTNUCLEARSTATION-UNIT2NIAGARAMOIIAWKPOWERCORPORATIONSTONEKWEBSTERENGINEERINGCORPORATION IIIIII (I,I[Ir!~I(IilI)I5.0DETAILEDRESULTS5.1POWER5.1.1ServiceWaterSystem5.1.1.1TaskP-SWP-1VerificationofServiceWaterFlowRatesReviewofthemethodologyandinputdatafortheservicewatersystemhydrauliccalculationsshowstheapproachandinputdatatobeaccept-able.Checkingoftheflownetworkmodel(Attachment1toCalculationNo.A10.1N-083)againstDivisionIofthesafety-relatedportionoftheservicewaterflowdiagrams(FSK-9-10series)showedagreementexceptfortwoareaswherenodepointswerelumpedtogetherformodelingpurposes(acceptable),andpipingchangesassociatedwiththestandbydieselgen-eratorarea.InthelattercasethenetworkincludedpipingchangesfromECN-SWP-48,whichhadnotyetbeenincorporatedintheflowdiagrams.Reviewofapproximately50valveandfittinglosscoefficientsinCalcu-lationNo.A10.1N-083showedacceptableresults.Sincethepostulatedsystemflowsforthevariousmodesofoperationinthecurrentreanalysiswerecomparabletopreviouslyanalyzedcases,CalculationNo.A10.1N-043wasreviewedwithregardtoheadersizingandreasonablenessofsystemflowvelocities.Thisreviewalsoshowedacceptableresults.5.1.1.2TaskP-SWP-2VerificationofColianceWithTMIReuirementsofNUREG0737Adequatepiping,controls,andservicewaterflowhavebeenprovidedtomeetTMIrequirementstoprovidereactorrecirculationpumpsealcoolingandtomaintainpost-IOCAcontrolroomhabitability.ReviewofCalculationNo.HVK4,whichsizestheservicewaterrecircula-tionpump(2SWP-"P2AandB)forthechillercondensers,showedthatthepumpswereundersized,however,thisproblemiscurrentlybeingcorrectedbythepurchaseofnewpumps.5.1.1.3TaskP-SWP-3AdeuateVentilationofServiceWaterPumpAreaHeatloadsintheservicewaterpumpbayasdeterminedinCalculationNo.HVY-21aresatisfactory.Noprojectcalculationswereidentifiedforthesizingofunitcoolers(2HVY'-"UC2A,B,C,andD)andaxialfans(2HVY"=FN1A,B,C,andD)fortheunitcoolersinthisarea.However,itwasdeterminedbyareviewcalculationthatunitcoolerspurchasedinaccordancewithSpecificationNo.P412MandaxialfanspurchasedinaccordancewithSpecificationNo.P413Rhavecoolingandairflowcapa-citiestoremoveenoughheatfromthepumpbaystomaintainthedesigntemperatureintheseareas.SomediscrepanciesexistinfanperformancedatabetweenSpecification.Nos.P413RandP412M.SpecificationNo.P412MshouldbemodifiedtoagreewithSpecificationNo.P413R.5-1STONCthWcBSTeR l1I 5.1.1.4TaskP-SWP-4VerificationofServiceWaterSstemFlowDiaramsFifty-fourEngineeringChangeNotices(ECNs)havebeenissuedfortheservicewatersystem.Twenty-fourECNsareoutstanding.Thirtyoftheseha'vebeenincorporatedinthesystemdesign,andofthoseincorporated,14affectatotalof32servicewatersystemFSKs.Areviewofthese14ECNsagainstthe32affectedFSKshasshownsuccessfulincorporationofchanges,exceptfortwoinstanceswherecorrectionswerefoundtobeinprogress.5.1.1.5TaskP-SWP-5VerificationofServiceWaterPumNPSHTheservicewatersystempumpNPSHrequiredis27ftwater,andthesuc-tionpipingisveryshortwithfewlosses.Therefore,aslongasthereiswater-intheintakebayabovethetopofthesuctionpipetothepump,sufficientNPSHwillbeavailable.Asaresult,thereviewconcentratedondeterminingthatsufficientsubmergencewasprovidedtoprecludevor-texformationandsubsequentairentrainmentintothesystem.Theonlycasewherevortexingwasdeterminedtobeaproblemwasthecaseofminimumpostulatedlakeelevation(236.3ft)combinedwithalossofthenormaldischargetunnelanddiffuser.Interpretation'ofRegulatoryGuide1.135indicatesthatthisisnotacrediblecombinationofevents.Therefore,adequatesubmergenceisprovidedtopreventvortexingunderallfeasibleoperatingconditions.5.1.1.6TaskP-SWP-6Sinle-FailureAnalsisReviewoftheservicewatersystemfaulttreediagram(98sheets)andtheFailureModesandEffectsAnalysis(110pages)showednosinglefailuresthatcouldpreventpost-LOCA/LOOPoperationoftheservicewatersystem.ReviewoftheFMEAagainsttheflowdiagrams(48sheets)forcompletenessshowedthatapproximately40reliefvalves,2SOVsand12AOVswereomittedfromtheanalysis.TwoMOVsthatwereincludedasmechanicalfailureswerenotdevelopedelectrically.Theeffectsofincludingandassumingsinglefailureoftheomittedvalveswouldresultinlocalfail-uresofsomecoolingservices,butwouldnotbeexpectedtoleadtoser-vicewatersystemfailureingeneral.Thesevalves,however,mustbeaddedtotheanalysisforcompleteness.5.1.1.7TaskP<<SWP-7AdeuacofDesintoPreventFreezinattheServiceWaterIntakeReviewofcalculationstodeterminetheheatingrequirementsfortheoff-shorebarracksintheservicewaterintaketopreventadherenceoffra-ziliceshowedthatthedesignwasadequate.Reviewoflinesizingcal-culationsshowedadequatesizingofthetemperinglinetopreventfreez-ingintheonshoreintake.5.1.1.8TaskP-SWP-8VerificationoftheCaabilitoftheIntaketoProvideanAlternateDischarePathforServiceWaterReviewofCalculationNo.H6E-172todeterminethattheuseofoneofthetwointaketunnelsasadischargeonlossofthenormalservicewater5-2SToNe0WessTeR IIIII dischargetunnelshowedthisoperatingmodetobeacceptable.Reviewoflogicdiagramsshowedadequatecontrolsandalarmstoactuatethismodeofoperation.Astructuralreviewofthewallseparatingthedischargeandintakebayshowedthewalltobecapableofwithstandingtheadversedifferentialheadof49ftundertheworstconditions.5.1.1.9TaskP-SWP-9ControlofBioloicalGrowthReviewoftheplantdesignforcontrolofbiologicalgrowthincludeddis-cussionsregardingconditionsatFitzPatrickandNMP1.Neitheroftheseplantshaschlorinationorotherbiofoulingcontrolsystemsontheser-vicewatersystem,andneitherplanthasreportedanybiofoulingprob-lems.NRCI&EBulletin81-03oa.Asiaticclamswasresponded.toin'letter(9M2-10,629datedJune24,1981)whichindicatedthattheclamsdonotcurrentlyexistinthelake,butcommittedtoprovidemonitoringofsystempressuredropsasafutureprecautionagainsttherapidlyspread-ingspecies.AaoperatingproceduretoimplementthiscommitmentshouldbedevelopedbyNMPC.5.1.1.10TaskP-SWP-10VerifSelectedHeatLoadCalculationsandAdeuateCoolinWaterForSecifiedHeatLoadsReviewoffourspecificationsandfivevendordrawingsshowingcoolingwaterrequirementsagainstFSARcommitmentstoprovidecoolingwaterflowshowedagreementbetweenrequiredandcommittedflows.Forresultsofdetailedreviewofunitcoolerdesignsandheatloadcalculations,seeSections5.1.1.3,5.1.2.1,and5.1.2.2.5.1.1.11TaskP-SWP-llVerifAdeuacofServiceWaterSstemDesinPressureandTeerature'hereviewofcurrentspecificationsanddrawingsagainstCalculationNo.A10.1N-9Ashowedthatsystemdesigntemperatureandpressureareade-quate.5.1.2OnsiteEmergeacyACPowerSystem5.1.2.1TaskP-EPS-1AdeuateVentilationforStandbandHPCSDieselGeneratorsThereviewofcalculationsandspecificationsshowedthatadequateventi-lationhasbeenprovidedtomaintainthedesigntemperatureof120FinthestandbyandHPCSdieselgeneratorrooms.However,theprojecthashadrecentcorrespondencewithGE(GELetterNo.NMP2-4901datedMarch22,1983,andSWECResponseIetterNo.9M2-13974datedMarch28,1983)questioningtheGEqualificationoftheHPCSdieselforthe120oFdesigntemperature.Thereviewofcalculationsandspecificatioasrelatedtothecoolingload,unitcooler,andfansizinginthestandbyandHPCSdieselgenera-torcontrolroomsresultedinPD017regardiagunitcoolers2HVP"UC1A,~UClB,and2HVP-UC2.Inthisinstancethehigherheat;loadduetotheincreasedhorsepowerofthepurchasedfansexceedsthemarginsassumedinthecalculation.Itmaybepossibletomeettheincreased5"3SvoNc&Wces7ce I

coolingrequirementsbyadjustingthefanpitchandincreasingtheser-vicewaterflowfromllto12gpm.5.1.2.2TaskP-EPS-2AdeuateVentilationforEmerencSwitchearAreaThereviewofCalculationNo.HVC-40andSpecificationNo.NMP2-P412MshowedthatFSARcommitmentshavebeenmetandthatadequatecoolingcapacityhasbeenprovidedtomaintainthedesigntemperatureintheemergencyswitchgeararea.Thecalculatedventilationrequirementsforthebatteryroomsarealsoadequatetomaintaindesigntemperatureandtopreventhydrogenbuildup.However,areviewofSpecificationNo.NMP2-P413RresultedinPD024regardingbatteryroomexhaustfans2HVS"-FN4AandB.Thepurchasedcapacityofthesefansismorethantwicetherequiredcapacity,andthepotentialsystemimbalancecouldimpactseveralareas.5.1.2.3TaskP-EPS-3AdeuateFuelOilandPuminCaacitForStandbandHPCSDieselGeneratorsThereviewofCalculationNo.EGF-16,whichsizedthefueloilstoragetanksforthestandbydieselgenerators,resultedinPD013regardingfueloiltanks2EG~1AandB.Thispotentialdiscrepancyrelatestoarequirementforan"explicit"allowanceforfuelconsumptionduringper-iodictestingwhensizingthestoragetank.Thetanksizingcalculationwasbasedonacontinuousloadrequirementof4400kW,whichagreeswiththeFSARcommitmentsinSection9.5.4.1.However,thisaspectofthetanksizingwillbeaffectedbytheresolutionofPD004discussedinSection5.2.2.2ofthisreport.ThesamemarginrequirementappliestotheHPCSdieselfueloilstoragetanksizedinCalculationNo.EGF-17.However,thereappearstobeamplemargininthecurrenttankcapacityforthispurpose,butthecalculationshouldberevisedtodemonstratecompliancewiththeFSARrequirement.ThereviewofCalculationNo.EGF-14,whichsizedthefueloiltransferpumps,resultedinPD011regardingpumps2EGF"-PlA,B,C,D,2A,and2B.Additionalpressuredropsneedtobeconsideredinsizingthesepumps.ThereviewofCalculationNo.EGF-18,whichsizesthefueloiltransferlinebetweenthedaytankandthestandbydieselgenerators,assumedthemaximumfueloillevelinthedaytankinsteadoftheminimumlevelincalculatingthegravity-drivenflow.However,areviewcalculationshowedthatthelinesizingwasadequate.5.1.2.4TaskP-EPS-4ReviewofStandbDieselGeneratorSecificationsThereviewofSpecificationNo.NMP2-E031A,StandbyDieselGenerator,againstflowdiagramsandFSARcommitmentsshowedthatadequateservicewaterflowisprovidedto.meetcoolingrequirements;however,thedatasheetsinthespecificationneedrevision.Interfacerequirementsre-gardingfueloilarediscussedinSection5.1.2.3above.Thereviewofinterfacestothedieselgeneratorairstartupsystemshowedthattheflowdiagrams,FSARcommitments,andvendordrawingsfortheairreceiver5-4Svova0WassvaR lIl tankswereinagreement;however,datasheetsinthespecificationneedtoberevised.5.1.2.5TaskP-ESP-5Sinle-FailureAnalsisThereviewofapproximately300pagesofZMEAoutputonninesystemssup-portingonsiteemergencyacpoweridentifiedsinglefailuresinthecon-trolbuldinganddieselgeneratorbuildingventilationsystems.Thesin-glefailureinthedieselgeneratorventilationsystemwasresolvedbyECN-HVP-12,andthesinglefailuresinthecontrolbuildingventilationsystemarecurrentlybeingaddressedasevidencedbynotesofconferenceofseveralrecentmeetings.Noothersinglefailureswereidentified.Thereviewofthefaulttreediagramforthestandbydieselgeneratorfuelagainsttheflowdiagramsandseveralelementarydiagramsshowedadequatetreatmentofallmechanicalcomponents,andthereviewalsoshowedthatallelectricalcomponentscheckedwerecorrectlyincorpora-ted.5.2ELECTRICAL5.2.1ServiceWaterSystem5.2.1.1TaskE-SWP-1ReviewofVoltaeProfilesatServiceWaterPumMotorTerminalsThevoltageprofilereviewperformedunderTaskE-EPS-4indicatedthattheservicewaterpumpmotorrequirementswillbemet.Acceptablevolt-ageswillbemaintainedattheservicewaterpumpmotorterminalsduringlightload,fullload,andmotorstartconditionswiththe115-kVswitch-yardoperatingbetween95percentand105percentoftheratedvoltage.5.2.1.2TaskE-SWP-2ReviewofCableSizinCalculationfortheServiceWaterPMotorTheservicewaterpumpmotorcablesizingcalculationwasreviewed.Themotorfullloadcurrentusedinthecalculationdidnotagreewiththevendormotordata,butthedifferencewassmallanddidnotaffectthecablesizeselected.Theprojectispresentlyrevisingtheductbankloadingcalculation.Resultsindicatetheneedtoincreasetheservicewaterpumpmotorcablesizefrom250KCMto350KCM.5.2.1.3TaskE-EPS-3ReviewoftheServiceWaterPumMotorThereviewindicatedthattheCESARandcalculationrequirementswereincludedinthespecification.Inaddition,theservicewaterpumpmotorqualificationreportwasreviewed.Baseduponthisreview,themotorwillhavealessthan40-yearqualifiedlifewhenoperatedatfullloadandspecifiedambientcondition.Itshouldbenotedthatthespecifica-tionhasnotexplicitlystatedthatthemotorshall-havea40-yearser-vicelife.5"5Svoxc&Wassvaa II 5.2.2OnsiteEmergencyACPowerSystem5.2.2.1TaskE-EPS-1ReviewofReserveStationServiceTransformerSizinCalculationThereviewofthereservestationservicetransformersizingcalculationhasidentifiedthattheFSARcommitmentofonereservetransformerbeingcapableofbringingtheplantupto25percentpowercannotbemet.Whenonereservetransformerisavailable,powercanbesuppliedtoeither,DivisionIorDivisionIIsystem;however,bothdivisionsofservicewaterpumps(fourpumpsminimum)arerequiredduring25percentpoweroperation.Thereviewofthiscalculationhasalsoidentifiedthat,duetoincreasein600-Vloads,thesparecapacityavailableinthetransformerpurchasedwillbelessthanthatpresentlyindicatedinthecalculation.Adequatecapacityisstillavailabletosupplyallpresentlyidentifiedloads.RefertoPDs001and003fordetaileddiscussion.5.2.2.2TaskE-EPS<<2ReviewofStandbDiesel-Generator2EGS"-EG1SizinCalculationAsthestandbydiesel-generatorsizingCalculationNo.EC-32,Revision2,wasunderprojectreview,FSARTables8.3.1and8.3.5wereusedtodeter-minethediesel-generatorloadingrequirement.Theworst-caseloadinTable8.3.5isshowntobe4,679-kW,whichishigherthanthe4,400-kWcontinuousratingofthediesel-generator..TheFSARcommitment.requiresthatthecontinuousratingofthe'ieselgeneratorbeequaltoorgreaterthantheworst-caseloadrequirement.Therefore,thedieselgeneratorselec'tedisnotconsistentwiththeFSARTable8.3.5.Aprojectreviewofthediesel-generatorloadingcalculationisunderwav,andpreliminaryresultsindicatethattheactualworst-caseloadislessthanthecontinuousratingofthedieselgenerator.AnFSARchangeisrequired:RefertoPotentialDiscrepancyNo.004fordetaileddiscussion.5.2.2.3TaskE-EPS3ReviewoftheOnsiteEmerencACPowerSstemShortCircuitCalculationTheshort-circuitcalculationfortheemergencybuses2ENS"-SWG101and2ENS"-SWG103wasreviewed.Theshort-circuitratingof250MVAfortheemergencybusbreakersisadequatewhentQebusiseithersuppliedfromthe'eservestation'servicetransformerortheauxiliaryboilertrans-former.However,whentheemergencybusissuppliedfromtheauxiliaryboilertransformer,the250HVAbreakerhasverysmallmarginavailable.TheNMP2Projectispresentlyrevisingthisshor't-circuitcalculationtoincorporatethenewsystemshort-circuitdatareceivedfromtheClient.5-6STONC6WcssTER Il1II 5.2.2.4TaskE-EPS"4ReviewoftheVoltaeProfilesfortheOnsiteEmerencACPowerSstemThevoltageprofilesatClass1Emotorterminalsduringlightload,fullload,andmotorstartconditionwiththe115-kVswitchyardsupplyingpowertotheemergencybuseswerereviewed.Whentheemergencybusissuppliedfromthereservestationservicetransformer,acceptablevoltagescanbemaintainedatClasslEmotorterminalswith.the115-kVswitchyardoperatingbetween88percentand105percentoftheratedvoltage.Whentheemergencybusissupplied.fromtheauxiliaryboilertransformer,acceptablevoltagescanbemaintainedatClasslEmotorterminalswiththe115-kVswitchyardoperatingbetween95percentand105percentoftheratedvoltage.TheNMP2Projectispresentlyrevisingthesevoltageprofilecalculationstoincorporatethenewsystemshort-circuitdatareceivedfromtheClient.5.2.2.5TaskE-EPS-5ReviewoftheVoltaeProfilesfortheOnsiteEmerencACPowerSstemDurinaDeradedGridConditionItcanbeseenfromsubparagraph5.2.2.4thataminimumvoltageof95percentwillberequiredinthe115-kVswitchardtomaintainaccept-ablevoltagesatClasslEmotorterminalswhentheauxiliaryboilertransformerissupplyingpowertotheemergencybus.Therefore,duringadegradedgridcondition,theoffsitepowertotheemergencybuswillhavetobecutoffwhenthe115"kV'switchyard'voltageisbelow95percent.Thiswillpreventthedegradedgridfromadverselyaffectingthe,opera-tionoftheonsiteemergencyacpowersystem.SWECLetterNo.9M2-4546datedOctober21,1977,discussestheeffectsofadegradedgridconditionontheemergencybuses.Thisletterhascon-sideredthecaseofareservestationservicetransformersupplyingtheemergencybus.Thelimitingcaseofanauxiliaryboilertransformersup-plyingtheemergencybusisnotdiscussedintheletter.5.2.2.6TasksE-EPS-6andE-EPS-7Reviewofthe5-kVand600-VCableSizinCalculationsThereviewofthe5-kVand600-VcablesizingcalculationforselectedloadshasidentifiedthatthefollowingFSARandtheDesignCriteriaEDC-4requirementswerenotcompliedwithintheapplicablecal-culations:a.Useof100percentlockedrotorcurrentformotor-operatedvalve(MOV)cablesizing.Thecalculationhasused55percentoflockedrotorcurrentforMOVcablesizing.b.ForMCCshavinglong-lengthfeeders,thevoltagedroplimita-tionof4Vwasexceeded.5-7StoveAWassvcR IIII c~Thecorrectbackupfaultclearingtimedoesnotseemtohavebeenusedincalculatingtheminimumcablesizerequiredforshort-circuitduty.Ourindependentcalculationcheckindicatedthatcable.sizeslargerthanthoselistedinTableQwererequiredifthebackupfaultclearingtimeandfaultcurrentparametersofTableQwereused.Thiscalculationcheckwasrequiredastheprojectcalculationsupportingtheminimumsizesdidnotexist.Inaddition,theformulalistedintheDesignCriteriaEDC-4forshort-circuitcurrenttobeusedforcalculatingthemini-mumcablesizewasincorrect.Thisformuladidnotincludesystemacfaultcurrentcomponentanddidnotfindthetotalfaultcurrentbysquarerootofthesumofsquaresmethod.RefertoPDs005,008,014,and023fordetaileddiscussions.5.2.2.7TaskE-EPS-8Reviewof4.16-kVSwitchearSecificationThe4.16-kVswitchgearSpecificationNo.E015Fapplicabletobus2ENS-SWG101wasreviewed.ThestationservicecalculationresultsandFSARcommitmentswereincorporatedintothespecification.Thevendorqualificationreportwasreviewed.Thisreporthasusedtheenviron-mentaldataspecifiedinthespecificationtomeetthequalificationrequirements."Thevendorhasidentifiedcertaincomponentswhichhavealessthan40-yearqualifiedlife.Thequalifiedlifeforcertaincompo-nentsisestablishedintermsofnumberofcyclesofoperation.Thevendorhasnotyetperformedtheproductiontestsasrequiredbythespecification.45.2.2.8TaskE-EPS-9ReviewofStandbDieselGeneratorSecifiationThereviewofthestandbydiesel-generatorSpecificationNo.E031AhadindicatedthatthevendordoesnothavethelatestloadingrequirementoftheFSARTable8.3.5.Thespecificationalsohasnotincludedtheenvi-ronmentalqualificationparametersforthediesel-generator.Thequali-ficationofthediesel-generatorshouldbeconfirmedforthelatestloadingandenvironmentalparameterrequirements.5.2.2.9TaskE-EPS-10Reviewof600-VPowerCableSecificationThereviewindicatedthattheFSARcommitmentswereincludedinthespe-cification.Inaddition,thequalificationreportenvironmentalprofileusedbythevendorenvelopedthespecificationrequirement.However,incertaininstances,themarginavailableintheenvironmentalqualifica-tionparameter(suchasatemperatureof346Fversus340Frequiredforaperiodof3hoursafterLOCA)islow.Thevendoralsohasnotaddressedthesynergisticeffectofthermalandradiationparametersonagingoftheinsulationandjacketmaterial.Theproductiontestdataforamulticonductorcablewerereviewed.Thetestdata(exceptinsulationresistancetestdata)submittedbythevendormeetthespecificationrequirements.Theinsulationresistance5-8STONE&WcssTKR II testdatawil1.bereviewedasaseparateactivityforthistask,andtheresultswillbeprovidedasanappendixtothisreport.5.2.2.10TaskE-EPS-llReviewofSelectedSafet-RelatedTraLaoutD~rawinsCabletraylayoutdrawingsforthecontrolbuildingandtheelectricaltunnelswerereviewedforseparationrequirements.Drawingsreviewedmettheseparationcriteria.Thisreviewhasindicatedthat"Green"and"Yellow"colorcodesareusedfor"Division"aswellas"Channel"typeracewayidentification.Thismaypresentracewayidentificationproblemsinthefield.Theprojecthasadvisedthat"Green"or"Yellow"colorcoded"Division"and"Channel"orientedracewaysdonotsharethesamesupport,i.e.,DivisionI(Green)andChannellA{Green)racewaysarenotinstalledonthesamesupport.Adherencetothisrequirementshouldbeverifiedbyafieldcheckofselectedracewayinstallation.5.2.2.11TaskE-EPS-12ReviewofOne-LineDrawinfor4160-VEmerencSwitchear2ENS-SWG101Thereviewofone-lineDrawingNo.EE-lg-6hasidentifiedinconsistenciesbetweenFSARcommitments,ESKsandtheone-linedrawing.Thesearedocu-mentedinPDs019and021.5.2.2.12TaskE-EPS-13ReviewofMainOne-LineDrawinsThemainone-lineDrawingsNos.EE-lAandEE-1BwerereviewedtoverifyFSARcommitmentsforrelaystobeusedforprotectionofthemaingene-rator,maintransformer,reservestationservicetransformer,auxiliaryboilertransformer,andthenormalstationservicetransformer.Theone-linedrawingshaveincorporatedtheFSARrequirementssatisfactorily.5.3CONTROLSYSTEMS5.3.1ServiceWaterSystem5.3.1.1TaskC"SWP"1InstrumentLooDiaramVerificationThereviewoftheinstrumentloopdiagramsidentified23inconsistenciesinrelationtocompliancewiththesystemflowdiagrams.Theseconsistedofdifferencesinlinenumbersandsize,documentreferences,colorcoding,valveposition,anddataomissions.Inaddition,themodifica-tionrequiredbyECNSWP-033wasnotincorporated.Exceptforthesein-consistencies,nopotentialdiscrepancieswereidentified.5.3.1.2TaskC-SWP-2SafetandReliefValvesThevendorvalvesizingcalculationsfortheCategoryIsafetyandreliefvalveswerereviewedforcompliancewithsystemdesigncriteria.Incor-porationoftheASMEcoderequirementswithinthePurchaseSpecificationNo.C051Awasverified.Exceptforminordatainconsistencieswithinthesedocuments,nopotentialdiscrepancieswereidentified.STONCRWKSSTKR IIl 5.3.1.3TaskC-SWP-3I,oicSstemVerificationInreviewingthelogicsystemdescriptionanddiagramsforcompliancewithFSARfunctionalandinstrumentationrequirements,therewerenopo-tentialdiscrepanciesidentified.However,therewere13inconsistenciesinthelogicsystemdescriptionsand8.inthediagrams,includingthefollowing:Descriptionsa~b.Cod.ControlswitchoperationdisagreeswithESKComputerandalarmpointsomittedValveoperationdescriptionomittedIncorrectdesignationsDiagramsa~b.C~d.ComputermonitoringinconsistentwithdescriptionLogicgateincorrectEquipmentlocationincorrectStatuslightomitted5.3.1.4TaskC-SWP-4ElementaDesinVerificationThe'eviewofthe61elementarydiagramsresultedin32inconsistencieswhichincluded:a~b.c~d.e.f.RelaycontactdesignationsomittedRelaycontactclosureoperationincorrectIncorrectcontactandalarmdesignationIncorrectdocumentreferenceLimitswitchdevelopmentincorrectCircuitinconsistentwithlogicrequirementsInaddition,19pushbuttonswitchesshownas"PBServiceWaterDiv.IManuallyInoperable"locatedontheCategoryIportionofPanel601inanunisolatedCategoryIcircuitareidentifiedasaQACategoryIIswitch.ThishasresultedinPD018.5.3.1.5TaskC-SWP-5DislaandInstrumentationSelectionInstrumentationrequirementsasspecifiedintheFSARwerereviewedtoensureavailabilityaswellasthecompatibilitywiththeequipment'esign,instrumentmeasurementloop,andenvironmentalqualification.Thespecificationdatasheetsfor2SWP"-FE533and2SM:FT533indicatesaninconsistencyinmeasurementranges.Flowelement2SWP"-FE533hasbeensizedtopassamaximumflowof20,000gpmwitha150-in.wc,whereastheassociatedtransmitterhasacalibratedrangeof0to27,000gpmfora0to150in.wcdifferential.Flowtransmitter2SWP-'FT567hasaspecifiedflowrangeof0to27,000gpm(150-in.wc)fromaflowelementsizedtopass22,000gpmata150-in.wc5"10STONC5WCISTCR I

differential.TheactualflowwillnotmeetFSARcommitmentsof0to27,000gpm.Theratioatnormalflowtomaximumflowfor2SWP-FE523,2SWP""FE534,and2SWP-FE567is10percent,25percent,and19percent,respectively.Thisresultsinanormalconditionattheextremelowendofthescalewithsevererestrictionsinreadability.ThishasresultedinPD009.ECNSWP-29datedMay18,1982,addedrequirementsfor2SWP"-FT200A-Fand2SMFT201AandB.ReportNo.PES-212,ControlSystemsInstrumentSchedule,showstheequipmentwasbeingpurchasedaspartofSpecifica-tionNo.C071M.SpecificationNo.C071M,throughAddendum1toRevision1,datedNovember8,1982,hasnotincorporatedthisequipment.ThishasresultedinPD010.Inreviewingtheapplicableinstrumentationinrelationtothemaincon-trolboard,itwasfoundthatindicators2SWP-FI533and2S~FI523onPanelNo.2CEC"PNL601aremountedinmirrorimagetotheirredundantindicators2SWP""FI567and2S~FI534.InaccordancewiththeguidelinesofNUREG0700,mirrorimageviolatestheprincipleof"positivetransferoftraining"andshouldbeavoided.ThishasresultedinPD002.5.3.1.6TaskC-SWP-6InstrumentDesinDrawinVerificationTheinstrumentdetailsandpipingdrawingswerereviewedforproperin-clusionandinterpretationofengineeringinputincludinglicensingcom-mitments.InstrumentpipingDrawingNo.EK-19BshowedthehighandlowsideofdifferentialpressuretransmittersPDIS-70A(trashrackdifferen-tialpressure)andPDIS-71A(travelingscreen.differentialpressure),bothinterconnectedtothehighsidepiping.ThishasresultedinPD031.5.3.1.7TaskC-SWP-7SecialServicesControlValvesInreviewingthespecification(C051M)forthespecialservicescontrolvalvesitwasfoundthatforvalves2SW~35Aand2SWP-TV35Btherewerenocalculationstoverifytheparametersshownonthetechnicaldatasheets.TheresultantCisbasedonpreliminaryvendorinformationwithoutcalculationsubmittedforreviewandapproval.Thevalverequirementsandinputparametersdonotagreewithexistingprojectsystemcalculations.5.3.1.8TaskC-SWP-8InstrumentandAlarmSetpintsSetpointcalculationshavenotyetbeenperformedbytheproject;there-fore,reviewtodesignandlicensingcommitmentscouldnotbeperformed.5"11STONL0WRBSTKR llI 5.3.2OnsiteEmergencyACPowerSystem5.3.2.1TaskC-EPS-1StandbDieselGeneratorLoadinSeuenceLoicTaskC-EPS-2StandbDieselGeneratorUndervoltaeLoadSeuencinElementaDiaramsThereviewoftheDivisionsIandIIstandbydieselgeneratorloadsequencingrequirementsresu1tedinidentifying26inconsistenciesbetweenthelogicdescriptions,logicdiagrams,elementarydiagrams,andtheFSAR.Theseincluded:a~b.cd.e.StatuslightsomittedfromlogicdescriptioaAnnunciatorsomittedfromlogicdiagramsMonitoredparametersomittedfromlogicdescriptionTransferswitchinterlockomittedfromlogicdiagramRelaycontactnumbersandpositiondifferbetweenelementarydiagramsListofannunciatordisplaysdisagreebetweenlogicdescriptionandelementarydiagrams.W5.3.2.2TaskC-EPS-3~DislaandInstrumentSelectionInstrumentationrequirementswerereviewedinaccordancewiththeFSARcommitmentsanddieselgeneratorSpecificationNo.E031A.ThisresultedinidentifyingareasofthemaincontrolboardwhichdonotcomplywithFSARcommitmentsofSections8.3.1and1.10,ItemI.D.1.ThisincludesomissionofalarmsandnoncompliancetotheguidelinesofNUREG0700,"GuidelinesofControlRoomDesignReview."Thesewere"documentedinPD025.Additionally,thespecifiedrangeforthefueloil.transferpumpflow(low)of20gpmdoesnotmeettheFSARcommitmentof0to30gpm(seePD022).5.4ENGINEERINGMECHANICS5.4.1ServiceWaterPiping5.4.1.1TaskN-SWP-1ReviewofDesinCriteriaForPieStressAnalsisThedesigncriteriaofSpecificatioaNo.P301A,PipingEngineeriagandDesign,werereviewedforcompliancewithFSARcommitments.Selectedcommitmentswerereviewed.Theyincludeloadingconditions,seismicde-signcriteriaofASMEIIIcode,,modalresponsecombinationofRegulatoryGuide1.92,andpipingdampingfactorsofRegulatoryGuide1.61.Theyarecorrectlyaddressed.,Theuseofequivaleatst'aticloadfactorof1.5issatisfactoryascomparedwithafactorof1.3specifiedinFSAR.How-ever,'heFSARcommitmentofRegulatoryGuide1.122onARSenvelopingandpeakspreadingisnotaddressed.Itisrecommendedtoincorporateitinthenextaddendumofthesubjectspecification,asthiscommitmenthasbeenimplementedinpipestressanalysis.5.4.1.2N-SWP-02ReviewofServiceWaterPieStressAnalsisThreepipestressanalyseswerereviewed.TheyareAX-19I,forthepipingconnectingtoRHSservicewatersuctionnozzle,AX-19Fforpipinglocated5-12STONKa(WCBSTER IIIII betweensecondarycontainmentandpipetunnel,andAX-19AFforpipingconnectingtoservicewaterpumpdischargenozzle.Asaresultofthesepipestressanalysesreview,fivePotentialDiscrepancieswereidenti-fied.5.4.1.2.1ThereviewofpipestresspackageAX-19L,Revision3,resultedinPD006,whichregardsseismicanalysis.ThepipingofthispipestressanalysispackageisanASMEIIISafetyClass3pipingasspecifiedinFSARSection3.9.3.1.2A.Itisdesignedtowithstandlevelsof"loadingimposedbytheOBEandSSE.Inthiscalculation,theloadingcasesofOBEseismicanchormovement(OBEA)andSSEinertia(SSEI)arenotinclud-ed.WiththeabsenceoftheOBEAload,theEquation10(plantnormalandupsetcondition)ofASMEIII,ND-3652.3isnotproperlyaddressed.Inaddition,withtheabsenceofSSEI,theEquation9(plantfaultedcon-dition)ofASMEIII,ND-3652.2isnotproperlyaddressed.Additionaldocumentationisrequiredtojustifytheuseofcertainloadingcondi-tions,orconsiderationthattheyarenegligible.5.4.1.2.2ThereviewofpipestresspackageAX-19L,Revision3,resultedinPD007,whichregardswaterhammeranalysis.Thissectionofservicewaterpip-ingshouldbedesignedforwaterhammerload.ThewaterhammerforcingfunctionswereavailableinCalculationNo..12177-NP(C)-PX"01920,Revision0,butwasnotincludedinthispipestressanalysis.ThiswaterhammerloadisrequiredforEquation9(plantemergencyandfaultedconditions)ofASMEIII,ND-3652.2inaccordancewithFSARSec-tion3.9.3.1.2A.Theprojectisawareofthisconcernandhasscheduledtoreanalyzethispipestresspackagetoincludethewaterhammerloads.5.4.1.2.3ThereviewofstresspackageAX-19F,Revision3,resultedinPD015,whichregardsthedynamicmodel.Thisdynamicmodelhasacutofffre-quencyof23.8Hzatits50thmode.ThiscutofffrequencydoesnotreachthepeakresponsefrequencyofSRVhydrodynamicamplifiedresponsespec-trum(ARS)curves(approximately50Hz).WithoutthecontributionsfromARSpeakresponse,theseanalysesmaynotgiveasatisfactorydynamicresponse.However,itmaybeshownthatthenumberofvibrationmodesusedforthisdynamicmodelwassufficientusingtheprocedureoutlinedinStandardReviewPlanSection3.7.3.Iftheinclusionofadditionalmodesdoesnotresultinmorethana10percentincreaseinresponse,theoriginalmodelwouldbeconsideredacceptable.5.4.1.2.4ThereviewofpipestresspackageAX-19F,Revision3,alsoresultedinPDNo.16,whichregardsseismicARSenvelopes.TheinputseismicARS5-13STONaAWaeSTIR IIIIII curvesarefromPXCalculationNo.12177-PX-01937,Revision0,whichpro-videsseismicARSenvelopesatreactorbuildingelevations213.75ftand197ft.ThisPXcalculationdoesnotincludetheseismicARSforthetunnelinwhichpartofthepipingislocated.TheuseoftheseARSenvelopesdoesnotcompletelysatisfythecommitmentofFSARSec-tion3.7.3.9A.5.4.1.2.5ThereviewofARSCalculationNo.12177-PX-01907,Revision0,resultsinPotentialDiscrepancy32,whichregardsARSpeakspreading.CESARSec-tion1.8commitstocomplywithRegulatoryGuide1.122inthedevelopmentoffloordesignresponsespectraforseismicdesignoffloor-supportedequipmentorcomponents.SWECcomputercodePSPECTRA(describedinFSARSection3.7.3.8.3A)isdesignedtoimplementthepeakspreadingcriteriaofthisRegulatoryGuide,aswellasforenvelopegeneration.ARSCalculationNo.12177-PX-01907forenvelopingseismicARScurvesusesanoldercomputercodeCURVE2(ME-117)andthereisnootherdesigncal-culationreferenced.ltisnotclearhowtherequirementofRegulatoryGuide1.122isaddressed.,Pipestresspackages,suchasAX-19L,whichusetheresultsofthiscalculationastheirdesigninputshouldalsobereevaluated.5.4.1.3TaskN-SWP-03ReviewofHdrodamicLoadsonSuressionPoolBoundariesPourcalculations,werereviewedforthehydrodynamicloadsonsuppressionpoolstructure.TheseloadsareprovidedtotheStructuralDivisionforhydrodynamicARSgeneration.CalculationNo.12177.08-PX-60020providesthedesigndatausedtodesignquenchersandtogenerateSRVdischargeloadintothesuppressionpool.ThedesigndataincludesinformationsuchasSWECpipingdrawings,fric-tionfactor,valveopeningtime,etc.Thereviewfindsthiscalculationsatisfactory.ThereviewfindthethreeotherCalculationNos.12177.08-PX-60044,PX-60058,andPX-60053alsosatisfactory.Theyprovidethehydrodynamicloadsonsuppressionpoolstructureduetocondensationoscillationandchuggingeffect.5.4.1.4TaskN-SWP-04ReviewofEuimentualificationsforSeismicandHdrodamicLoads-ServiceWaterPiinTheservicewaterpumpandthermalreliefvalveswereselectedandre-viewedfortheequipmentqualificationforseismicand/orsuppressionpoolhydrodynamicloads..TheseismicqualificationcriteriaofservicewaterpumpSpecificationNo.NMP2-P222XwerereviewedforcompliancewithFSARcommitments.ThesecriteriaareusedasthebasisforthereviewofSeismic-StressAnalysis5-14STONE6WcssTKR IIIII Report(HE-534).Theresultindicatesthattheservicewaterpumpsarequalifiedtoperformsafety-relatedfunctionsduringandafterapostu-latedseismicevent.Forthermalreliefvalves,fourdocumentswerereviewed.TheyarethesafetyandreliefvalvesSpecificationNo.NMP2-C051A,vendorseismicreport(EC-522),vendorspecificationfordesignanalysis(EC-672),andvendorOperabilityTestReport3864.Thereviewfindsthethermalreliefvalvesareadequatelyqualifiedforthecombinedeffectofseismicandhydrodynamicloads.5.4.1.5TaskN-SWP-05ReviewofDesinInutControls-PieStressA~nalslsProject.ProceduresSW-PP40,TheAdministrativeProcedureforPipeStress,andNMP2-40-07,DataRequiredforPipeStressAnalysisandPipeSupportDesign,werereviewed.Thesetwoproceduresprovidethedesigncontrolofinformationrequiredforpipestressanalysis.Theinterd.sciplineinterfacesareclearlyspecified.Thereviewfindsproceduresadequatefortheirintendedpurpose.5.4.1.6TaskN-SWP-06ReviewofMaorEuimentSuortsCalculationNo.12177-MS-1275,theanchorboltanalysisforservicewaterpumps,wasreviewed.Thereviewitemsincludematerialproperties,designloads,andanchorboltloads.ThedesignisfoundtomeettherequirementsofASMESectionIII,subsectionNF.5.4.1.7TaskN-SVP-07ReviewofDesinCriteriaforPieSuortDesinThedesigncriteria.ofSpecificationNo.P301N,DesignandFabricationofPowerPlantPipingSupport,werereviewedforcompliancewithFSARcom-mitments.ThereviewitemsincludetheloadingconditionsandallowaolestressforClass2and3pipesupport'ndpipeintegralattachment.Thereviewresultedintwofindings.ThefirstoneisthatFSARTableNo.3.9A-4shouldberevisedtouseOBETinthecombinationforZoadCon-dition3.ThesecondfindingisthatthepipingsupportdesignSpecifi-cationNo.P301NshouldberevisedtoreadDL+SRSS(OBEI,OCCE)forplantemergencyloadcombination.5.4.1.8TaskN-SWP-08ReviewofSelectedPieSuortDesinAselectednumberofpipesupportswithvarioussupportfunctionswerereviewed,fordesigninput,loadingcombinations,andsupportfunctionandlocation.Theselectionincludedsuppressors,variablespringhangers,-anchors,struts,andrigidrestraints.Thisreviewhasfoundthatthelatestsupportdesignloadshavenotbeenincorporatedinallsupportdesigns.Inaddition,twoPDshavebeenidentifiedasfollows.I5.4.1.8.1ThereviewofpipesupportCalculationNo.12177-Z19-0122hasresultedinPD026.FSARSection3.9.3.4.1Astatesthatspringhangersaredesigned5-15STONEaAWCSSTER IIIII foradown-travelandup-travelinexcessofthespecifiedthermalmove-menttoaccountfordynamicmovements.Inthiscalculation,'hepipemovementsduetodynamicloads(seismicandhydrodynamic)werenotcon-sideredwhencheckingtheworkingrangeofthevariablespringhangers.Thisconcernappliestoallspringsin'hepipestresspackagesAX-19Land19Funderreview.5.4.1.8.2Thereview'fpipesupportCalculationNo.12177-Z19-0338hasresultedinPotentialDiscrepancy33.ExtrapipesupportloadsduetogeologicalmovementsinadditiontootherloadingsareprovidedinpipestressCal-culationNo.12177-NP(c)-AX-19F,Revision3,datedOctober28,1982.Thisrevisionofpipesupportloadsisnotusedinthesupportdesigncalculation,butanearlierrevisionwithoutsuchloadsduetogeologicalmovementsisused.Inaddition,thecurrentrevisionofpipesupportloadshashigherthermalloadthantheonesusedinthedesign.Thispipesupportdesignanditsstructuralattachmentloadsmayhavetoberevised.5.4.2OnsiteEmergencyACPowerSystem(EPS)5.4.2.1TaskN-EPS-01ReviewofEuimentuglificationforSeismicIoadTheseismicqualificationof4,160-Vmetal-cladswitchgearwasreviewed.PurchasingSpecificationNo.NMP2-E015F,4,160-VMetal-CladSwitchgear,andVendorCertifiedSeismicReportwerereviewed.Theresul'tindicatesthattheswitchgearisqualifiedtoperformitssafety-relatedfunctionsduringapostulatedseismicevent.'5.5STRUCTURAL5.5.1TaskS-STR-1StandardEmbedmentPlatesTheintentoftheoriginalscopewastoreviewselectedcalculationsfornumericalaccuracybutthecalculationstodeterminetheallowableloadsonstandardembedmentplatesusingheadedanchorstudsarecurrentlybeingsuperseded.Thenewcalculationshavenotbeencompletedandarenotchecked.Therefore,thereviewwasredirectedtoassessthemethod-ologybeingusedinthenewcalculations.Theobjectiveofthesecal-culationsistodeterminetheallowableloadswiththeattacbmentsatanypointontheplateandtoincludetheflexibilitycriteriaofNRCIREBulletin79-02.Reviewofthecalculationsindicatesthattheanalyticalmethodusedisappropriate.TheFSARstatesthatpipesupportsusingbaseplatesandconcreteexpan-sionanchorboltsaredesignedusingtheflexibilitycriteriaofNRCISEBulletin79-02.AlthoughnotspecificallymentionedintheFSAR,embed-dedplatesusingheadedanchorstudswillbehaveexactlythesameasbaseplateswithconcreteexpansionanchorbolts,andthereforebothsys-temsshouldbeanalyzedinthesameway.Afiniteelementnonlinearanalysisisusedtocalculatethestudloadsandtheplatestresses.TheSTARDYNE/SPRINGcomputerprogramisusedand5-16STONC&WCBSTER IIIIIIIIII theinterfacebetweentheconcreteandthebaseplateismodeledasanon-linearspring.Thestiffnessoftheattachmentisincludedinthebase-platemodel.Oneoftheparametersuponwhichtheallowableloadsontheembedmentplatesdependistheallowableultimatepulloutloadsonthestuds.Therecouldbeapossiblefuturelicensingquestionwiththemethodusedtocalculatetheallowableultimateloadsonthestuds.TheNineMile.2ProjectiscommittedtodesignconcretestructuresinaccordancewiththerequirementsofACI318,exceptasmodifiedintheFSAR.ACI318,however,doesnotgiveanyspecificrequirementsforthecalculationoftheallowableultimatepulloutloadsonembeddedstuds.ThesevaluesweretakenfromthepublicationDesignData10,EmbedmentPropertiesofHeadedStuds,TRWNelsonDivision,hereafterreferredtoastheNelsonStudCatalog..ACI349,AppendixB,doesspecifyrequirementsforthecalculationofallowableultimatestudloads,andusingthemethodsofACI349resultsinlowerallowableloadsthanthosegivenintheNelsonStudCatalog.TheNineMile2ProjectisnotcommittedtoACI349,andAppendixBhasnotyetbeenacceptedbytheNRCinRegulatoryGuide1.142,Revision1,datedOctober1981.However,thediscussioninRegulatoryGuide1.142doesstatethatthestaffintendstoendorseAppendixBinaregulatoryguidebeingdevelopedtoaddresscomponentsupportanchors.Itdoesappearthatinthefuturethe'NRCcouldrequirethatallowableembeddedstudloadsshall,becalculatedusingthemethodsofACI349,AppendixB.5.5.2TaskS-STR"2CableTraSuortSstemsTheintentoftheoriginalscopewastoreviewselectedcalculationsfornumericalaccuracy.However,theseismicverificationprogramfortheplanthasnotbeencompleted,andtheeffectofthenewseismicresponsespectraonexistingcabletrayandconduitsupportdesignshasnotbeenfullyassessed.Therefore,thereviewwasredirectedtoemphasizethemethologyusedinthecalculations.Theresultswerereviewedtoseeiftheywerereasonablefortheoldseismicresponsespectra.TheFSARstatesthatCategoryIcabletraysupportsystemsareanalyzedusingamodalanalysis/responsespectramethodincludingseismicand/orhydrodynamicloads,andthatthedynamicresponsestothedynamicloadssuchasLOCA,SRV,andOBE/SSEarecombinedbythesquareroot,ofthesumofthesquares(SRSS)method.Reviewofthecalculationsindicatesthatthemathematicalmodelingofthecabletraysupportsystemsandthedynamicanalysismethodiscor-rect.TheSTRUDLcomputerprogramisusedtodothefrequency/responseanalysis.ThedesignofthecabletraysupportsystemmemberscomplieswiththerequirementsoftheAISCSpecificationforthedesign,fabrication,anderectionofstructuralsteelforbuildings,whichisanFSARcommitment.5-17STONE6WKDSTKR IIII 5.5.3TaskS-STR-3ConductSuportSstemslI.sTheFSARstatesthatcableandsupportswithsafetyfunctionaredesignedtowithstandtheeffectsofseismicand/orhydrodynamicloads,andthatthedynamicresponsestothedynamicloadssuchasIOCA,SRV,andOBE/SSEarecombinedbythesquarerootofthesumofthesquares(SRSS)method.Themethodnormallyemployedinthedynamicanalysisofconduitsupportistoapplythepeakvalueoftheappropriateamplifiedresponsespectrumintheresonantrangeasanequivalentstaticload.When,intheopinionoftheproject,alessconservativebutmorecorrectsetofdynamicloadsisdesired,adynamicanalysisisdoneontheconduitsupportinthesamemannerasisdoneforthecabletraysupports.IsIiI\IIIt.sIilReviewofthecalculationsindicatesthatbothoftheabovemethodsofdynamicanalysishavebeenusedcorrectly.ThedesignoftheconduitsupportmemberscomplieswiththerequirementsoftheAISCSpecificationforthedesign,fabrication,anderectionofstructuralsteelforbuild-ings,whichisanFSARcommitment.5.5.4TaskS-STR-4BaselateswithDrilled-inAnchorsforConduit~SoortsTheFSARstatesthatpipesupportsusingbaseplatesandconcreteexpan-sionanchorboltsaredesignedusingtheflexibilitycriteriaofNRCI&EBulletin79-02.AlthoughnotspecificallymentionedintheFSAR,conduitsupportsusingbaseplatesandconcreteexpansionanchorboltsarealsodesignedusingtheflexibilitycriteriaofNRCI&EBulletin79-02.AreviewofthecalculationsindicatesthatthedesignmethodusedistheonedescribedinCHOC-EMTR-605datedJuly8,1981.Withinthebaseplatesizeandthicknesslimitationspecified,CHOC-EMTR-605meetstheflexi-bilitycriteriaofNRCI&KBulletin79-02.Thedesignmethodforthebaseplatesisthereforeconsideredsatisfactory.5.5.5TaskS-STR-5ScreenwellBuildinDischareBaWallsThelicensingcommitmentforthedesignoftheSeismicCategoryIpor-tionsofthescreenwellbuildingisgiveninSection3.8.4oftheFSARandtherequiredstrengthforloadcombinationsisgiveninTable3.8-11oftheFSAR.Reviewofthecalculationsindicatesthatthewalldimensionsusedareinaccordancewiththedrawingsandthattheappliedloadcombinationsaresatisfactorilyincorporatedinthedesign.Thewallsaredesignedbyanelasticanalysisforoutofplaneloadingusingflatplateequationsfortwo-wayactionandbeamtheoryforone-wayaction.Elasticanalysisusingbeamtheoryisusedforin-planeseismicloading.ThewalldesigncomplieswithACI318,AmericanConcreteInstituteBuild"ingCodeRequirementsforReinforcedConcrete,whichisanFSARcom-mitment.5-18 yEl 5.6EQUIPMENTQUALIFICATIONProjectProcedure(PP)76,ControlofEquipmentRequiringQualification,andtheEquipmentQualificationSection(EQS)OperatingProceduresManualidentifytheprojectEquipmentSystem(pES)document(particularlyPES800)asthebasedocumenttobeusedforthepreparationofthe-....EquipmentQualificationDocument(EQD)thatwillsupportthecommitmentsofFSARSection3.11,EnvironmentalDesignofMechanicalandElectricalEquipment.ThePESdocumentisthe"MasterList"ofequipmentrequiringqualification.NoprocedurespresentlyexistsprovidngdirectiontotheprojectontheimplementationofthePESsystem;however,suchaproce-dureisunderpreparationandshouldbeissuedshortly.Theprojectprocedurethatprovidedforthetransmittalofdocumentsbetweendisciplinesinvolvedinthequalificationprogram(PP17)hasbeencancelled.TheEQSpresentlyreferencesthisprocedureasthecon-trollingdocumentforthe"FlowofDocumentsBetweenProjectsandEquip-mentQualificationSection(seeProcedureEQ-5-1-0datedAugust2,1982).Currently,nootherprocedureexiststoprovideforthedocumenttrans-mittalineithertheNMP2ProjectProceduresor'theEQSOperatingPro>>cedures.ProjectProcedurePP81,Revision1,SupplierDocumentHandlingSystem(SDHS)andPP87,Revision0,ReviewofSupplierEquipmentQuali-ficationDocumentation,arebeingpreparedandatpresentareoutforcomment.PP81willreplaceProjectProcedurePP17andPP87willbeanextensionofPP81,specificallyforthehandlingandreviewofvendor-suppliedqualificationdocumentation.Theseprocedures,whenimple-mented,willprovidethenecessarycontrolsneededfortheprojecthand-lingofvendorqualificationdocumentation.TheseproceduresneedtobeincorporatedintotheEQSOperatingProceduresManualtoensure,thatthehandlingofthesedocumentsisconsistentbetweentheEQSandNMP2.TheEQSOperatingProceduresManualidentifiestheproceduresbywhichtheEQSfunctions.Notallproceduresidentifiedinthetableofcon-tentsexistatthistime(i.e.,EQ-6"0-0andassociatedprocedures).EQSprocedureEQ-7-1-0,RequiredEquipmentQualificationSectionWorkingFiledatedAugust2,1982,requirestheEQSreviewers'oprepareanEnviron-mentalQualificationSummarySheet.Thissummarysheetistobeincor-poratedintotheEQD,therebybecomingasupportingdocumentforFSARSection3.11commitments.Nowrittenprocedureisprovidedatthistimeforthecompletionofthisform.TheEQSispresentlyreviewingavailablevendorqualificationsubmittalsagainsttheenvironmentalrequirementsimposeduponthevendorbythespecifications.ProjectSpecificationNo.NMP2-EDLS,EnvironmentalDesignLimitsSpecification,willprovideacontrolleddocumentthatliststheindoorenvironmentalconditionsresultingfromnormal,abnor-mal,andaccidentevents.Thespecificationispresentlyonlyinthepreliminarystagebutisexpectedtobereleasedinthenearfuture.Thisdocumentwillcausearevisiontospecificationsandto,thestatusofequipmentlistedinthePESdocumentwhenreleased.Thisspecifica-tionwillalsobecomethebasisforthecomparisonofthevendorqualifi-cationdataagainstplant-specificconditions.5-19STQNcthWKssTKR IIIll FSARSection3.11commitstothequalificationofmechanicalequipment.Presently,noNRCrequirementsexistforthequalificationofmechanicalequipment;however,basedonNRCrequeststoCENTI'sPerryProjectandfromIILCO'sShorehamProject,theClienthasaskedtheNMP2Projectforrecommendationsforthequalificationofmechanicalequipment(referenceR.P.Byrnes'emorandumdatedJuly27,1982,toP.A.Wild,AttachmentGtoSWECLetterNo.T-59,571datedApril29,1983).Thereferencedmemo-randumalsoidentifiesthe%lP2ProjectProceduresforthequalificationofmechanicalequipment.Thesearetheonlyproceduresthatexisttodateformechanicalequipment.Theprocedures,ifimplementedformally,wouldprovidearesponsesimilartothatprovidedfortheShorehamProj-ect.BasedonthePerryProject,theShorehamProject,andtheHanford2Project,theNRCwillrequireamechanicalequipmentqualificationpro-gramsubmittalbeforeapprovingfuelload.Theequipmentqualificationprogrambeingperformedbythe%1P2ProjectdoesnotincludeNSSS-suppliedequipment.Thisequipmentisbeingre-viewedbyGE.ProjectGuideline(PG)55,TrackingQualificationStatusofGE-SuppliedEquipment,datedFebruary14,1983,providesforprojectcontroloftheGEeffort.5.7INTERDISCIPLINECOMMUNICATIONInadequateinterdisciplinecommunicationhasbeenfoundinthefollowingareas.5.7.1Theexistingsystemfortheuseofstandardembedmentplatesisthatthedisciplineusingtheplatecomparesitsloadswiththeallowableloadsissuedbythestructuralprojectgroup(notethattheallowableloadspresentlyinusedonotincludetheflexibilitycriteriaofNRCISZBul-letin79-02).Iftheappliedloadsarelessthantheallowables,thestructuralprojectgroupj.snotnotifiedofthevalueoftheloadsontheplate.TheweaknessofthisprocedureisthattheStructuralGroupcan-notreadilytabulatetheappliedloadsonanyparticularembedmentplate.Thissituationcanbecorrectedwhenanadequatestructuralverificationprogramisimplementedontheproject.5.7.2Poorinterdisciplinecommunicationbetweenpowerandstructuraldisci-plineswasobservedinthedesignofthewallbetweentheintakeandthedischargebaysinthescreenwellbuildingfornormaloperationwithfaileddiffuser.Therequireddifferentialheadofwateronthiswallis49feet.Thewallwasdesignedforadifferentialheadof40feet.Thereisenoughconservatisminthedesignsothatthewallisstillade-quatetoresistaheadof49feet.Thiscalculationshouldberevisedtoreflectthecorrectdifferentialhead.5.7.3TheimplementationofECNNo.SWP-040ontheESKsandtheone-linedraw-ingwasreviewed.ItwasobservedthattheESK-5SWP07hasincorporated5-20STONESWEBSTCR IIIII ECNNo.SWP-040butone-lineDrawingNo.EE-IQ-6hadincorporateditincorrectly.ThisitemwasincludedinPD019.5.7.4TheimplementationoftheloadsequencerundervoltagerelaytrippingschemeintheESKsandtheone-linedrawingwasreviewed.Inconsisten-cieswereobservedbetweenone-lineDrawingNo.EE-IQ-6andESK-5ENS21.ItappearedthattheESKiscorrectandthatone-lineDrawingNo.EE-IQ-6willhavetoberevisedtobeconsistentwiththeESK.ThisitemwasincludedinPD019.5.7.5Thesetpointsestablishedfor2EGA"=PS7Aand2EGA-PS10AdifferinISK-12-4AandelectricalSpecificationNo.E031A.5.7.6TheelectricalsectionoftheFSARrequiredannunciatorsthatwerenotincorporatedbytheControlsDisciplineintheappropriateannunciatorpanel(seeSection5.3.2.2).5.7.7TheloopdiagramsNo.SWP-209andSWP-511haveaddedtheflowindicators2SWP-FI209and2SWP-FI511.However,theflowdiagramsFSK-9-10serieshavenotaddedthisindicators.5.8CONSTRUCTIBILITY5.8.1FollowuponTaskForceMarch1981ReportonITTGrinnellPipingErectionActivitiesAreviewoftheMarch1981reportonITTGrinnellpipingerectionactivi-tieswasperformed,andallsuggestedactionscontainedinthereporthavebeenaddressedorimplemented.Therearetwosubjects,however,worthnoting.ITTGrinnellshouldcontinuetheireffortstoprovidequalifiednonmanualpersonnelintheareasofsupervision,planning,siteengineering,andqualitycontrol.Althoughoneofthetaskforce'srecommendationsin-cludedloanofpersonneltosupplementITTGrinnell'sstaff,thisshouldbeconsideredasaninterimarrangement.Thepresentemphasisofinstallingbulkquantitiesisanormalandneces-sarymodeofoperationatthisstageoftheproject.However,itisalsoprudentnottosetaside,overlook,orpostponetoolongthecompletionofsystems.Thefieldsiteisawareofthis,andstepsarebeingtakentoorganizetheteamtosupportworktrackingandsystemcompletionfor'urnover.5-21STONE'(WcBSTER'I lII 5.8.2SupportsInterferencesGenerally,evenwithtolerancesestablishedforlocationofitems,therearenumerousoccasionswheretoleranceshavetobeexceeded.ThismeansthatanESDCRisissuedidentifyingtheproblemandtheresolutiontoallowadditionaltoleranceorredesigntheinterferingmembertomaintainthepositionofthesubsequentinstallation(usuallyhanger(s)forpipingorcabletray)Theredonotappeartobeanyseriousproblemstodatewithinterferenceofpipetopipe,pipetocabletrayorHVACduct,orcabletraywithHVACduct.Themajorinterferenceswithinthesethreedisciplinesareduetothehangersofonedisciplineinterferingwithanotherdiscipline,hanger-to-conduitinterference,andoccasionallyahanger-to-hangerinterference.Permanentplantinstallationinterferencewithtemporaryconstructionfeaturesisnotconsideredinthisreview.TheestablishedmethodofresolvinginterferenceproblemsiswithESDCRsandACNs.Therangeoftimerequiredforresolutiondependsontheemphasisgiventotheparticularproblemalongwiththedegreeofcompli-cationsandcanvaryfromseveralhours(rarity)toseveralmonths.Thetechniques,usedintheindustrytodaytoattempttoavoidinterfer-ences,i.e.,manualcross-checkingofdrawings,compositedrawings,andmodeling,appeartoworkwiththeamountofinformationavailableatagiventime.Theproblemisnotsomuchthelargeitems,whichareeasiertoillustrate,butthemagnitudeanddensityofsmallercomponentsofsystemssuchashangersandconduit.Astheseitemsdonotappearon'ompositesormodelstobeseen,theyinherently.aresuspectsformore-interferenceproblems.Theproblemgrowsworseasthedensityofworkincreasesinagivenarea.Thisnecessitatesawalkdownandpartialtocompletelayoutpriortoinstallation.Lightingandcommunicationscon-duits,whereinstalledearlyorbeforeareasareoccupiedbythepipe-fitters,areexperiencingahighrelocationrate,reportedly60to65percent.Otheritemsrelatingtosupportsandinterferencesare:Thedrilled-in-anchorprogramisexperiencingdelaysforre-queststocutreinforcingsteel.Providingtheinstallerwithsufficientflexibilitytomovethesupportasrequiredtomissthesteelwouldreducethesedelays.Restrictionofmaximum3ft0in.unsupportedlengthofcableisnotappropriateinallcases.Arelaxationto5or10feetassituationsdictatewouldgreatlyreducethenumberofEBDCRsand,presumably,unsats.Anumberofareasinthecontrolbuildingandelsewhere(southelectrictunneltoauxiliarybay)maynotbearrangedsuchthata3-ftmaximumlimitationcanbeachieved.TheSEGEngineersauthorizedtosignACNsneedtobelocatedwithconstructionsupervisiontopromoteateameffortformoretimelyresolutionofinterferences.(Itisreasonabletocon-siderthatcontractor'sengineersmightbeauthorizedtosignACNs).5-22STONE6WEBSTER

'IIII Smallborebaseplates(drilled-inplates)aresomassivetheirsizeisoftennotappreciatedwhensupportsforsmallbore(includingconduit)arespottedonthedrawings.~Accessibilityfortubesteeltotubesteelweldsonsomehan-gersbeinginstalledafterpipeiserectedmightbenefitfromfurtherchecking,particularlyforwraparoundweldssupportingpipelinesof12in.diameterandbelow.4CompositecheckinginCategoryIIareasonaselectedbasismightbeexploredtoavoidinterdisciplineinterference.Foradditionalinformationonspecificsupports,seeAppendixConstruc-tibilityTaskNo.3.5.8.3InstallationPracticalityAreviewoftheservicewaterEPdrawingswasmadetodeterminewhetherthedrawingsprovidedadequateinformationtofabricateandtoinstallsaidpiping,valves,expansionjoints,strainers,etc.Thisincludedservicewater=pipinginthepumpbay,turbinebuilding,reactorbuilding,andemergencydieselgeneratorbuilding.Asdepictedonthedrawings,thedensityofpipelinesisnotsuchthatitimposesaburdenoninterpretationofrouting,flowdirection,linedesignation,XYZcoordinates,andvalveorientation.'lthoughnotcon-sideredascompositedrawings,thereisevidencethatindicatesagoodamountofeffortwasputintoavoidinginterferencesofpiperoutingwithitemssuchashatches,stairways,ladders,chases,elevators,doors,platforms,concretewalls,andstructuralsteelcolumnsandbeams.WhatwasnotshownwasinterfacingwithHVACducts,electricalraceways,otherpipingsystems,andhangerlocations.Asstand-alonedrawings,theyappearedtoprovidesufficientdataandclaritytofabricateanderectthepipingwithfewornoproblems.AcautionaryremarkisthattherevisionsofthedrawingsreviewedwereIssues4,5,6,orlater,anditispossiblethatfirst-releasedrawingsmayhavelackedsomespecificdesiredinformation.Theasteriskmark(-)isusedthroughoutontheEPdrawings,butnodefi-nitionorreferenceisgiventoexplainitsfunction.Theexplanationshouldappearasanoteonatleasttheleaddrawingofaseriesofdraw-ings.(Weunderstandthattheasteriskistosignifyitemsthataresafetyrelated).Ingeneral,therewereonlyafewitemsidentifiedasbeingtooimprac-ticaltoinstallasdescribedinAppendixA,ConstructibilityTaskNo.3.Mostofthecommentsorcomplaintsondifficultyofinstallationweregenericinnatureaswouldbefitanylarge,complexproject,particularlyaprojectundertheauspiceorscrutinyofaregulatoryagencysuchastheNRC.5-23STONC&WIKBSTKR IIIIIIII Commentsdiscussedwererelatedto:~Tolerances-ThetolerancesissuedbyEngineeringforConstruc-tiontofollowareforareason,especiallywhereitemssuchasconnectionpointsarepreengineeredtoparticulardimensions.TofavorConstructionwithlargertolerancesrunstheriskofinterferingwithotherdisciplineactivityorthechancethatasystemas-builtwouldnotbeacceptablewithoutsomealtera-tion.Duetotolerances,themajorcontractorshaveinstitutedaprogramwherebywalkdown(s)andLevelIsurveysbysurveyingpersonnelarenecessarypriortoinstallationandinsomecasespriortofabricationofitems,e.g.,hangers.Whiletolerancesarenecessarilytighttoavoidconflictsbetweencontractors,agreementbetweencontractors'onstructionandengineeringtoprovidemoreflexibletolerancestobeusedonlywheninstal-lationinaccordancewiththedrawingcannotbeachievedwouldconsiderablyreducethenumberofinterferencesrequiringreso-lutionbyESDCR.ForCategoryI/seismicelectricalconduitinstallation,greaterflexibilitytomoveconduitandsupportswhilemaintainingthebasicconceptofthesupportsystemshouldbeconsidered.Also,conduitinstallationsmightbe"generally"enhancedby:Approvingtheuseoftwoorpossiblythreeshimplatesunderdirectattachedconduittoallowclearanceforpull-boxesandbaseplates,aswellassatisfyingcriteriaforsupportsproximitytoconduitbends,i.e.,extendthepre-sentlimitof5/8-in.maximumshimmingdimension.Encouragecontractortorequestdirectattachmentinlieuofdesignedsupportswherethecontractorbelievesitwouldbenefithiseffortandprovidetimelyresponsetosuchrequests.Continuetoprovideflexibilityinrequirementssimilartoallowing4ftsupporteithersideofa90degelbowinlieuoftheoriginal1ftrequirement.Allowrotationofsimpletubesteelpostsupportstosuitas-beatconduit,e.g.,floorpostsupportonwestendofsouthelectrictunnel(extendtoallareastheallowancetorotatesupportsprovidedbyNote4onDrawingNo.EE-460AGintheprimarycontainment).Theindustryhasbecomesoprocedure-orientedthatgoodjudg-mentpracticesforfieldinstallationhavebeenruledoutunlesssomehowthisjudgmentisconfidedorimpartedtotheengineersandacceptedaspartoftheresolutiontoaproblem.Thenecessaryverificationofitemsofworkhascreatedapapermilltowhichallhandsaretiedandhashadquiteaneffectonperformanceorefficiencyofindividuals.5-24STONERWEBSTER III Generalaccesstomostofthebuildingsisgood;however,someareas'suchastunnelsandpassagewaysareverycongestedandquiterestrictive,makingitdifficultfororderlyinstalla-tion.TheinstallationproblemsatNineMile2arenomoreseriousthanforothernuclearpowerplants.5.8.4ClarityandCompletenessofEngineeringProductsAttheoutsetitmustbestatedthatdocumentsinexistencetoday,e.g.,drawings,areinmostcasesrevisedversionsofthoseoriginallyissuedforconstruction.Assuch,theclarityandcompletenessofengineeringdocumentsdoesnotappeartobetheproblemthatexistedinthepast.Thisisnottosaythatnoproblemexists,ratheralesssevereone,andattentionshouldbegiven,tothosefirst-issuedocumentsreadyforreleasenoworinthefuture.ProminterviewswithvariousconstructionpersonnelatthesiteandCHOC,thanasignificantproblem.Theoccasionallackoflegibilityapparentlyisduetooriginaldrawingsbeingworkedonrepeatedly.Consequently,thereproductionslosequalitysoastobeillegibleattimes.Also,occasionallytherewouldbesomedouble-imageprintsthatwerethefaultofthereproductionprocessorequipment.Thestrongestcomplaintre-gardinglegibilitywasthatsomevendorreproduciblesandprintswereofpoorquality.Thereasonforthiswasnotexplored,butthishasbeenacomplaintformanyyearsonmanyjobs.Itisanareathatneedsconstantattentionbytheinitialrecipients,usuallyEngineering,topressven-dorsforbetterqualityprintsandreproducibles.Asidefromlegibility,thecomplaintsregardingoverallclarityandcom-pletenessofengineeringproductsconsistedofthefollowing:Duetomanyfactorsassociatedwithinterpretationorchangesinengineeringdata,thevolumeofE&DCRsandACNshasbecomeaconstantsourceofannoyance.ThebasicconceptoftheE&DCRstoprovideinformationorresolutionstoproblemsinanexpedi-tiousmannerhasgrownintoapapermonsterchallengingtheabilityofalluserstouseandmaintainthesedocumentsinanorderlymannersubjecttoaudits.Inextremecasestherearereportedlyuptoapproximately40E&DCRsandACNsattachedtoadrawing.ItisapparentthatProject,ProcedurePP-16,whichstatesthatdrawingsmustberevisedafterfiveE&DCRsaccumu-late,isnotbeingfollowedinallcases.InsomecasesthefieldthinkstheE&DCRsystemisbeingabusedsinceafollowupE&DCRcanmodifyoraugment,apreviousone.EachE&DCRshouldstandalone;TheisometricsproducedbyITTGrinnellinKernersville,NC,donotincludeshopweldidentificationinallcases.Theseshopweldsapparentlyarerequiredtobeidentifiedontheisometricorthey.arenotacceptableaspartoftheplannerpackage.Thisbeingthecase,thoseisometricswhichareincompletemust5-25SToNe&WessTea IIIIIII beupdatedbyITTGrinnellfieldpersonnelinordertobeusable.CriticismwasalsoleveledatKernersvillefornotdevotingenoughreviewtimeontheirisometrics,asapproxi-mately25percentrequireEGDCRstoupdatethemforconstruc-tionuse.ThefieldalsobelievesthataBillofMaterialsshouldbeincludedontheisometricsbythepreparer,includingthesmallboreisometricsinitiatedbyCHOC.TheclarityofBZdrawingsdidnotcomeunderfireasanticipated.Commentssuchas"sizeorlengthofweldsaresometimesneeded"donotappeartoconstituteamajorproblem.ItisourunderstandingthatCHOCManagementhasimplementedarevisedchecklistfordesignthathasimprovedtheclarityofinformationontheBZdraw--ings.IItappearstobeaconsensusatthejobsitethatthetermina-tiontickets,forthepurposesofterminating,areuseless.Terminationsarebeingmadeutilizingthelatestissueofthewiringdiagrams.Afterterminationsaremade,theissuenumberofthewi~ngdiagramistransferredtotheterminationticketforrecordpurposes.TheterminationticketisthenusedbyQualityControlfortheirverificationandofficialrecord(s).Thedatarequiredforlocatingsmallborepipe,instrumenttub-ing,andsupportsofpreengineeredsystemsareanissueofsignificantproportions.Typically,workpointreferencedimensionswithrespecttothebuildingareonlygivenateachendofthepipingonaDPdrawing.Inordertolocateanyotherpointinthepiping,whetheritbeforasupport.locationorchange-of-directioncoordinate,atrigonometriccalculationmustbeperformedforthesurveyorstomakeaproperlayout.Presentlythesecalculationsarebeingperformedbythefield.Ithasbeendiscoveredinasufficientnumberof.casesthatthedimensionsandanglesgivenforpiperoutingdonotalwaysleadfromoneworkingpointtotheotherandcontaininaccuraciesinexcessof1in.toseveralfeet.Itisthefieldsopinionthatitwouldbep'referableforCHOCtoprovidethesupportandchange-of-directioncoordinateswhendesignisbeingaccomp-lishedalongwiththeend-of-pipelocation.ThereisafeelinginthefieldthattheLineDesignationTableisadocumentissuedforinformationonlyandassuchisnotbeingupdatedasoftenasitshouldbe.BothSPECandITTGrinnellusethisdocumentinthefield.Itshouldbeissuedasacontrolleddocumentandrevisedasnecessary.ThepresentissueinthefieldisdatedMay24,1982.Thespecificationforthesheetmetalcontractorwasexploredandseveralareasofconcernwerenoted.Reportedly,thespe-cificationdoesnotmakeclearthedocumentation(datasheets,certificationpapers)thecontractorisrequiredtosupplynorare.theyclearonproceduresubmittalsastosimplesubmittalfor"information,"for"review"orfor"approval."Thespeci-ficationalsolacksinformationintheareaofequipmenttobe5-26STONS0WKSSTER II procuredbythecontractor.Thedampersreportedlyarerefer-encedtoacataloguenumberwithnootherrequirementsstatedandinrealitytherequirements,thoughnotspecified,areextremelydetailed,causingconfusionanddelaysindrawingapprovalsandreleaseforfabrication.Thereisalsosomeareaofconcernbythefieldonresponsibilitiesofthecontractorasto:tjlil[L~(III~lLIIa)Approvalrequirementsforthecontractor'snonseismicsupportdesign,i.e.,approvalofgenericdesignorapprovalofeachdesign.b)Submittalofas-builtstoindicatelocationofnon-seismicsupports.5.9STATISTICALRESULTSThereviewoftheservicewatersystemandtheonsiteemergencyacpowersystemrequiredtheuseofabroadcross-sectionofdocumenttypespre-paredbybothSWECandequipmentvendors.Eachofthesedocumentsorportionsthereofwere-comparedtotheappropriatebasedocumentand/ortheCESARcommitments.Insomecasesthereviewdocumentofonetaskbecamethebasedocumentofasubsequenttask.Table5.9-1isamatrixofthedocumentsreviewedversusthequantityofinconsistenciesbytype.5-27SVONe&WensvcR IIIIIIII TABLE5.9-1DocumentQuantityReviewedMinorErrorsandInconsistenciesPotential962193FSARTable.8.3.1262258411064105214ngs92n14SpecificationsCalculationsTrayLayoutDrawingOne-LineDrawingsElectMotorandLoadEQMListLogicDiagramsLogicDescriptionInstrumentDrawingsI,oopDiagramsEmbedmentDrawingsConduitDrawingsConcreteDrawingsElementaryDiagramsFMEAFSKSheetsPipingDrawingsPipingSupportDrawiProjectProcedures,PipeSupportIocatioDrawings734287217235164352425-28STONE6WEBSTdR IIIIIIII STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT"NPPUNITNO.2INDEPENDENTDESIGNREVIEW,PROGRAMForm11Page1of1POTENTIALDISCREPANCY(P.D.)IOGP.D.NO.OIRNO.DISCIPLINESYSTEMTITLEOFP.D.TASKNO.001002003004005006007008009010011001002003004005006007008009010011ElectricalControlsE1.ectricalElectricalElectricalEngineeringMechanicsEngineeringMechanicsElectricalControlsControlsPowerOnsiteEmergencyA-C.PowerServiceWaterOnsiteEmergencyA-CPowerOnsiteEmergencyA-CPowerOnsiteEmergencyA-CPowerServiceWaterPipingServiceWaterPipingOnsiteEmergencyA-CPower.ServiceWaterServiceWaterOnsiteEmergencyA-CPowerReserveStationServiceTransferSizingCalculationControlBoardDesign-HumanEngineeringDiscrepancyReserveStationServiceTransferSizingCalculationStandbyDiesel-Generator2EGS*EG1SizingCalculation600VACPowerCableS'zingGaleSeismicAnalysis/ServiceWaterPipingStressCalcAik-19LWaterHammerAnalysis/ServiceWaterPipeStressGaleAZ-19L600VACPowerCableSizingCalcInstrumentLoopMeasurementRangeTransmitterSpecificationOnsiteEmergencyPowerE-EPS-1C-SWP-5E-EPS-1E-EPS-2E-EPS-7N-SWP-02N-SWP-02E-EPS-7C-SWP-5C-SllP-5P-EPS-3-013014015OI3014015PowerElectricalEngineeringMechanicsOnsiteEmergencyA-CPowerOnsiteEmergencyA-CPowerServiceWaterPipingFuelOilStorageTankCapacityStandbyDieselGeneratorP-EPS-3-:5KVPowerCableSizing.DynamicModelofSRVHydrodyna-micLoadingCalculationAX-19FN-SWP-02C2/1217773/1/2RH03/074/8337STONE6WEBSTER I,III STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-'PPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm11Page1of1POTENTIALDISCREPANCY(P.D.)LOGP.D.OIRNO.DISCIPLINESYSTEMTITLEOFP.D.TASKNO.016016EngineeringMechanicsServiceWaterPipingSeismicARSEnvelopesforServiceWaterCalcAX-19FN-SWP-02017017PowerrOnsiteEmergencyA=CPower'dequateVentilationforDieselGeneratorControlRoomsP<<E.S-1018019021.022023018Controls019Electrical021Electrical022Controls023ElectricalServiceWaterOnsiteEmergencyA-CPowerOnsiteEmergencyA-CPowerStandbyPowerOnsiteEmergencyA-CPowerOneLineDwg.ReviewReviewoftheOne-LineDwg.12177-EE-lg-6FlowElementSizingE-EPS-12E-EPS-12C-EPS-3600VCableSizingCalculationE-EPS-7IndicatorSwitchesonPanel601C-SWP-4024024PowerOnsiteEmergencyA-CPowerAdequateVentilationfortheEmergencySwi,tchgearAreaP-EPS-2025025ControlsOnsitpEmergencyA-CPowerElectricalControlBoardReviewC-EPS-3026031026EngineeringMechanics031.ControlsServiceWaterServiceWaterInstrumentPipingC-SWP-6VariableSpringHangerDesignN-SWP-08032033032033EngineeringMechanicsEngineeringMechanicsServiceWaterPpgServiceWaterLineARSPeakSpreadingPipeSupportDesignforGeologicalMovementsN-SWP-02N-SWP-08C2/1217773/1/2RH03/074/83syogg8(wRssTRR

~IRi)

CONSTRUCTIBILITYREVIEWFINDINGLOGTaskNo.1-ITTGrinnellReportTaskNo.2-SupportsInterferencesTaskNo.3-InstallationPracticalityTaskNo.4-ClarityandCompletenessofDrawings5"29syogg4WKSSTKR I~~~~~~gi~~~'l STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT"NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.001SystemOnsiteEmergencyA-CPowerSystemDisciplineSubjectReserveStationServiceTransferSizingCalculationTaskNo.E-EPS-1OPenItemReportNo.001DESCRIPTION:FSARSection8.2,Criterionflrequiresthateachreservestation'servicetransformerbecapableofbringingtheplantup'to25percentpowerduringstart-up.Theservicewatersystemrequiresthatfourpumpsberunningfor25percentpoweroperation.Withonlyonereservestationservicetransformeravailable,theelectricaldistributionsystemcanprovidepowertosafetydivisionsIarIIanddivisionIII.TherearethreeservicewaterpumpsinieachofthesafetydivisionIandII.Therefore,duringabovementionedcondition,theelectricaldistributionsystemcansupplypowertoonlythreeservicewaterpumpsandnotfourpumpsasrequiredbythesubjectcalculation.Note:Duringnormalplantstartupbo-threservestationservicetransformersareavailableandcanprovidepowertobothsafetydivisions;Criterion2,FSARSection8.2.%$'iginstor%viceProjectEngineer+~~MH~EngineerManagementSponsorY4C2/1217773/1/2RH03/074/83STONL'IWKSSTIIR

~~)~~~~/5,~~~~~'l STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1wf1XSTENTIALDISCREPANCY(P.D.)REPORTP.D.No.002SystemServiceWaterDisciplineSubjectControlBoardDesin-HumanEngineeringDiscrepancyTaskNo.C-SWP-5OpenItemReportNo.002DESCRIPTION:Indicators2SWP*FI533andFI523mountedinmirrorimagetoredundantIndicators2SWP*FI567andFI534.Niginator%hviewProjectEngineerEngineerManageaentSponsorDate;~/'sf~~naazS/FC2/1217773/1/2RH03/074/83$7sTQNRCkWC6STER f~)~l~I'~~~~

STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Pagel.of1POTENTIALDISCREPANCY(P.D.REPORTP.D.No.003SystemOnsiteEmerencA-CPowerSystemDfscfp]ineSubjectReserveStationServiceTransferSizingCalculationTaskNo.E-EPS-1OpenItenReportNo.003DESCRIPTION:ThecalculationEC-3requiresthateaChreservestationtransformerbecapableofbringingtheplantto25percentpower,providesparecapacitys~forfutureloadgrowth;andalsosupplyLOCA.loads.Thecalculationcheckwasmadetoverifythatthereservestationservicetransformerhassufffcientcapacitytomeettheaboverequfrements(withthelatestavailablemotorandloaddate).Asaresu1,tofasfgnifi-cantincreasefnthe600Vloadrequfremontthedemandonthereservestationservicetransformerwil1be79MVA.Thereservestationservicetransformer(2RTX-XSRlA)fs.ratedat42/56/7GMVA.Therefore,.theloadonthetransformerexceedsitscapacity.llteo:Thesparetapatttprequdrssent(ISpercent+12}ipd)sseuneddnthecalculationshouldbereviewedinviewofthecurrentstatusoftheplantdesfgn.Ifreductionfnthesparecapacityrequirementof9MVAisacceptablethentheplantloadswf11bevfthfnthecapacftyofthetransformerpurchased.~oiginator~~viewProjectEngineerEngineerManagementSponsor~rDate.-0-6P3Da~tnhsos'CgQDatg5C2/1217773/1/2RH03/074/8337SToNc&WKosTER l~~~~I~~~i~~

STONE&WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOSTSCORPORATIONNINENILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1'POTENTIALDISCREPANCYP.D.)REPORTP.D.No.004SystemOnsiteEmerencA-CPowerSystemDisciplineSubjectStandbDiesel-Generator2EGS*EG1SizingCalculationTaskNo.E-EPS-2OpenItenReportNo.004DESCRIPTION:TheFSARcommitment(Page8.3.14)statesthat"eachstandbydiesel-generator'scontinuousratingisdeterminedbasedonitsworst-casestartingandcontinuousloaddutyunderthefollowingconditions":~a.SimultaneouslossofoffsitepowerandLOCA.b.LossofoffsitepowerandsubsequentLOCA.c.LOCAwithsubsequentlossofoffsitepower.d.Simultaneouslossofoffistepowerandunittrip.AsperFSARTable8.3.5,simultaneouslossofoffsitepowerandLOCAconditionimposesaworst-caseloadof4679KW(2hrs.and6sec.(t).Thecontinuousratingofdieselengineis4400K'FSARFig.8.3.2).The2000hourratingofthedieselengineis4750KW.Therefore,thecontinuousratingofthedieselenginedoesnotmeettheFSARcommitment.Nota:l.Itshouldbenotedthatattheoperatinglicensestage,RegulatoryGuide1.9,Rev.2,permitstheuseofashort-timeratingofthediesel-generatorunittoDa~i5~'CŽF3DatgW~~3fEngineerManagementSponsorVi~Ãmeettheworst-casecontinuousloadrequirement.2.ThecalculationEC-32,Rev.2(underreview)indicatesthattheworst-casesIloadonthediesel-generatoris4339K'hichislessthan4400INcontinuousratingofthediesel-generator.iginatorDate;%tviewProjectEngineer'~A.cfo~C2/1217773/1/2RH03/074/83STONE&WEBSTER l'I STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.SystemOnsiteEmergencyA-CPowerSystemDiscip]ineSubject600VACPowerCableSizingCalculationTaskNo.OpenItemReportNo.005DESCRIPTION:FSARSection831.14onCableknpacitiesandDeratingstates{onPage8.3-36):"Forsafety-relatedmotoroperatedvalvesgQV),the'ablesaresizedt:o'carry.themanfacturer'sspecifiedlockedrotorcurrentcontinuously."Zncalculationtitled600VACCableSizing,12177-EC-59-1,safety-relatedMOVcablesaresizedat55Ioflockedrotorcurrentwiththecurrentnotexceeding300Xoffullloadcurrent.Note:ENECElecttieelTechnicelGoidelineETG-V-2-3,dotedJanuary10,1975allowstheuseoftheprocedureusedintheabovecalculation(EC-59-1).@iginator@viewProjectEngineer/<'~~~A.~<~"EngineerManagementSponsorPDate:5-64'>Da~E3C2/1217773/1/2RH03/074/83k7STQNKStWEBsTER

~l~~~~1~~~.l-j STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9PageIof1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.006SystemServiceWaterPiingDisciplineSubjectSeismicAnalysisinServiceWaterPipeStressCalculation12177-AX-19LTaskNo.N-SWP-02OpenItemReportNo.006DESCRIPTION:SeeAttachmentP.D.8006OriginatorRevievProjectEngineerEngineerManagementSponsor~gnate(oD.teDate5~8C2/1217773/1/2RH03/074/83sToNEewKBST$RARSE ll5I Page1of2ATTACHMENTP.D.8006Thiscalculation12177<<NP(C)-AX-19L-1isthepipestressanalysisa1forpipfagfroudeRHSHeatExchangerServiceMaterSuctionConnectiontothefirstpipeanchor.ThisisanASMEIIISafetyClass3'pipingasspecifiedfnTSARSection3.9.3.1.2A.ItisdesignedtowithstandlevelsofloadiagimposedbytheOBEandSSE.Inthispipestresscalculation,theloadingcasesofOBEseismfcanchormovement(OBEA)andSSEinertia(SSEI)arenotfncluded.fifththeabsenceoftheOBEAload,theEquation10(plantnormalandupsetcondftion)ofASMEIII,ND-3652.3isnotproperlyaddressed.Inaddition,withtheabsenceofSSEItheEquation9(plantfaultedcondition)ofASMEIII,ND-3652.2isaotproperlyaddressed.Additionaldocumentationisrequiredto/ustifytheuseofcertainloadingconditions,orconsiderationthattheyarenegligible.I(A)ItwasdeterminedthatOBEAmaybenegligiblebecauseofthefollowingreasons:EffectonPieStressAllsupportsexcepttheanchoratelevation251'>>4"(whichisattachedtoRadwasteTunnel)lfeintheSecondaryContainmeatranginginelevationfromelev.181'oelev.240'.-Sincetheelevationinvolvedisatorbelowgradelevel,OBEAdfsplacementsareconsiderednegligibleasiadicatedbelow:~Bld.Elev.(ft)AbsoluteDisalacementRef.Gale.SecondaryDxDyDzContainment0.0470.0070.04612177-EM3.2923825012177-EK3.88RadwasteTunnel0.0030.00020.011EquatfonIOstressduetothermalexpansionisonly6740psfandislowascomparedwiththeallowablestressof36~000psi.2.EffectonPieSuortOBEAloadsareincludedfnthesupportsummarybyapplyingaloadfactorof0.1toOBEI.Thisloadfactorisspecifiedasafootnoteinthepipesupportloadtransmittal(Attachment2)whichisanattachmentofthesub)ectpipestresscalculation.SvoNe6WeosveR l'Iig~~~~~~~~~

Page2of2(B)SSEIItwasdeterminedbytheNMP2projectstressengineerthattheSSEARScurvesareabout25XhigherthanthosefortheOBE.However,sincethePlantFaultedConditionallowablestressistwicethePlantNormal/UpsetConditionallowablestress,thestresslevelisestimatedtobewithintheallowablestressforthefaultedcondition.Forthedesignofpipesupports,aloadfactorof1.44wasappliedtotheconditionofOBEI+SuppressionPoolEmergencyDynamicLoadstoaccountforFaultedConditionLoads(SSELoad+SuppressionPoolFaultedDynmnfcLoad+MaterHammerLoad).(C)ThepipestresscalculationmustberevisedtosufficientlyaddresstherequiredOBEAandSSEIloads.Remainingservicewatersystempipestresspackagesmustbereviewedtoensurethattheseloadsaresufficientlyaddressed.STONC0WcbSTcR l

STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT"NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT~~,P.D.No.'07SystemServiceWaterPipingDisciplineSubjectWaterHammerAnalysisinServiceWaterPipeStressCalculation12177-AX-19LTaskNo.N-SWP02OpenItemReportNo.007DESCRIPTION:Thissectionofservicevaterpfpingshouldbedesignedforvaterhammerload.Thewaterhammerforcingfunctionsaregeneratedincalculation12177-NP(C)-PX-01920,Rev.0,butitisnotincludedinthispipestressanalysis.ThisvaterhammerloadisrequiredforEquation9(plantemergencyandfaultedconditions)ofASMEIII,ND-3652.2asperFSARSection3.9.3.1.2A.Thestressengineerdeterminedthatwaterhammerloadhasnegligibleeffectonthestressanalysisfnastatementintheassumptionfn12177-NP(C)-AX-19L-1,Rev.1.Hovever,thisassumptionwasnotre-statedinRev.3.Anevaluationvasmadeusinganexternallyappliedstaticforceonthepipingandthemaximumstressduetowaterhammerloadwasonly2216psi.Waterhammerloadsinthisanalysisareduetoa4pumptripduetoLOCAandlossofoffsftepover(Loop)Forpipesupportdesign,theoccasionalloadsduetoPlantFaultedConditionarecoveredbyaloadfactorof1.44timestheloadduetoPlantEmergencyCondition.Thisstresscalculatiommustbererfsedtoaddresswaterhammerloads.Remainingservicewatersystempipestresspackagesmustbereviewedtoensurethatwaterhammerloadsareaddressed.OriginatorReviewprojectEngineerAF<Fe~'ngineerManagementSponsor~5-6'-s3Date3~d8C2/1217773/1/2RH03/074/8337STONCrrgWKB8TER erl STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT~~.P.D.No.008SystemOnsiteEmergencyPowerSystemDisciplineSubject600VACPowerCableSizingCalculationTaskNo.E-BPS-7OpenItemReportNo.008DESCRIPTION:SeeAttachmentP.D.8008OriginatorDate5'-6-S'3sgReviewProjectEngineer~/~&'7'ngineerManagementSponsor~P'Date<<g>>IgC2/1217773/1/2M03/074/8337STONEatWEBSTER 4'~

Page1of1ATTACHMENTP.D.//008FSARSection8.2.2onDegradedVoltageConditionstatesonPage'8.2<<24:"Themaximum-pe~i:5si&Xevoltagedrop...;forthemotorcontrolcenters,thisisbrokenupas4Vbetweentheloadcenterandthemotorcontrolcenter(MCC)andBVbetweentheMCCandthemotors."Incalculationtitled600VACCableSizing,12177-EC-59-1,andaccordingtocableschedulefor2EHS*MCC101thevoltagedropbetweenloadcenterandMCCwillexceedthepermissible4Udrop.Fromcableschedule:Cablesizeis5-250KCMEstimatedcablelength599ft.MaximumcablelengthallowedaccordingtoEC-59-1:2.5x83~207.5ft.Thereforethefeedervoltagedropwillexceedpermissible4Vdrop.Note:1.ThevoltagedropcanbecalculatedonthebasisofactualloadplussparecapacityallowanceforfutureloadgrowthontheMCC.Thevoltagedropcalculationhasused600ampratingoftheMCCasloadcurrent.2.ForMCCfeedershavinglongcablelengths,thevoltagedropfrom600UloadcenterstotheMCCandfromtheMCCtomotorscouldberedistri-butedwithintheframeworkofthetotalvoltagedroplimitationof12V.s>ONg8WCbSTER I4 STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREUIEWPROGRAMForm9.Page1of,1POTENTIALDISCREPANCYP.D.)REPORT~~.P.D.No.009SystemServiceWaterDisciplineSubjectInstrumentLooMeasurementRangeTaskNo.C-SWP-5OpenItemReportNo.009DESCRIPTION:SignificanceofConcern:a)Transmittercalibratedrangeexceedsmaxflowthroughflowelement.b)FlowsensedbyFE-567cannotmeetFSARcommitment(Table7.3-11)of0-2700'gpm.c)FE-523,-534,-567normalflowatlowrangeofscale.SeeAttachmentP.D.8009IOriginatorReviewProjectEngineerEngineerManagementSponsorDate~)'ateC2/1217773/I/2RH03/074/83STONE&WK56TRR 1

ATTACHMENTP.D.8009I)TheFSARcommitment(Section9.2.5.2.1)specifiedthat25000gpmoftheservicewaterbeusedasmakeuptothecirculatingwatersystemandtheremainingportionconveyedtothescreenwelldischargebay.~.Section3EoftheServiceWaterSystemDescriptionidentifiesinstrument;loops2SWP*FE533,*FT533and2SWP*FE534,*FT534,trainBandArespectivelyasprovidingtheinputsignaltothecontrolroomindicators2SWP*FI533(SWPLoopBHdrFlowtoCWS)and2SWP*FI534(SWPLoopAHdrFlowtoCWS).Percalculation12177-AIO.IN-II,Rev.Idated7/20/81~trainAwillpassamaximumof15550gpmandtrainBwillpass21150gpmmaximum.FortheLoopBflow,theflowelementandassortedtransmitterdatasheetsofSpecificationCOIINandC071Mshowthefollowingdata:COIIN2SWP*FE533Meter-Differential150"H20C071MDifferential2SWP*FT5330-150"H20Min.FlowNormalFlow0gpm9500gpmCalibratedRange0-27000gpmMax.Flow20,000gpmAninconsistencyexistsbetweentheflowelementpassingamaximumflowof20,000gpmwitha150"wcandthetransmittercalibratedrangeof0-27000gpmwiththesame150"wcdifferential.2)Similarly2SWP*FT567,(servicewaterloopAflowlake)~hasaspecifiedcalibratedrangeof0-27000(150"wc)fromaflowelement(2SWP*FE567)sizedtopass22000gpmata150"wcdifferential.ThereforetheactualmeasuredflowwillnotmeetthecommitmentofFSARTable7.3-11foraninstrumentrangeof0-27000gpm.Inbothcasesthespecifiedrangeofthetransmitterwillexceedthatoftheflowelement.I')Theratioatnormalflowtomaximumflowfor2SWP~-523,FE-534andFE-567isIOZ,25Zand19Zrespectively.Thisresultsinanormalconditionattheextremelowendofthescalewithasevererestrictioninreadability.s'fogy8lWCSSTER II STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page}-of1POTENTIALDISCREPANCY(P.D.)REPORT-~.P.D.No.SystemServiceWa'terDisciplineSubjectTransmitterSpecificationTaskNo.C"SWP-5OpenItemReportNo.DESCRIPTION:2SWP*FT200A-ZhavenotbeenincludedinSpecificationC071MthroughAddendum1,Rev.1,ll/18/82.2SWP*FT201A,BhavenotbeenincludedinSpecificationC071MthroughAddendum1,Rev.1,'l-l/18/82.OriginatorRevievProjectEngineerl~&'t+'~-EngineerManagementSponsor~P0Date>Pu3D.~lp/~'ate5C2/1217773/1/2RH03/074/8337STONLrsgWCBSTCR I

STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Pagel.of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.OllSystemOnsiteEmergencyACPowerSystemDisciplineSubjectStandbDieselGeneratorFuelOilTransferPumpSizingTaskNo.P-EPS-3-1OpenItemReportNo.OllDESCRIPTION:FSARSection9.5.4.1statesthatthefueloilstoragesystemwillconformtoANSIStandardN-195-1976.Section6.3oftheANSIStandardrequiresastraineratthedischargeofeachfuelpump.Calculation12177-EGF-14,Rev.0doesnotaccountforthestrainerinsizingthefueloilpumps(2EGF*P1A,B,C,D,2A,2B).Accordingto12177-FSK-8-9AandB,thecalculatioashouldalsoincludeanadditionalvalveandflowelement,andflowintherecirculationline.Thiscalculationislabelled"coafirmatioarequired"becausepipinglengthwasestimated.Whencalculationisconfirmedwithactualpipingdesigntheabovementionedi,temsshouldbeincluded.iginatorReviewProjectEngineer/~A~a'h4$o~EngineerManagemeatSpoasorDate:Da~Da~S/rilf3C2/1217773/1/2RH03/074/8337SToNK0WEBSTCR II STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page.1of1POTENTIAL.DISCREPANCY(P.D.)REPORT~~.P.D.No.013SystemOnsiteEmergencyACPowerSystemDisciplineSubjectFuelOilStoraeTankCaacityforStandbyDieselGenerator(2EGF*TK1AS1B)TaskNo.P-EPS-3-2~~OpenItemReportNo.013DESCRIPTION:FSARSection9.5-4-1statesthatthe,fueloilstoragesystemwillconformtoANSIStandardN195>>1976.Section5;4oftheANSIStandardrequiresan"~licitggallowanceforfuelconsumptionduringperiodictesting.'alculation12177-EGF-16,Rev.0whichcalculatestherequiredfuelstoragecapacityforthestandbydieselgeneratortanks2EGPCKlhandBdoesnotincludesuchamargin.OriginatorReviseProjectEagineerA/A41&vga~EngineerManagmsentSponsorWETDateM/Co/FB~/ri/r3Date5//IC2/1217773/1/2RH03/074/83378ToNe&wessTeR

STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1lPOTENTIALDISCREPANCY(P.D.)REPORT~~.P.D.No.O14SystemOnsiteEmergencyA-CPowerSystemDisciplineSubject5KVPowerCableSizingTaskNo.E-EPS-6OpenItemReportNo.014DESCRIPTION:SeeAttachmentP.D.f/014OriginatorReviewProjectEngineer+AMM4M~EngineerManagementSponsor4DateDatevdC2/1217773/1/2RH03/074/83ZSTONE&WEBSTER II ATTACHMENTP.D.II,014Thereviewofthe5-kVPowerCableSizingCalculationHo.ZC-38dated'March31~1978,hasresultedinthefollowingobservations:11.TheDocumentHo.EDC-4datedhpril18,1978,titled"CriteriaforSizingPower,ControlandDCCables,"statesthattheminimumcablesirerequiredtomeettheshort-circuitdutybecalculatedasfollows:f-]0.0297Log2hTl+234F5~~~~~1WheretPaultClearingtimeh~ConductorbreaI~RMSCurrentduringentireintervalofcurrentflowhndIisdefinedinEDC-4asijXco(ed.<WhereI~Paultcurrentatt0max-ratioofthesystemLRHowever,theRMSvalueoftheshortcircuitcurrentconsistsofthedecayingdccomponent(Idc)andtheacsymmetricalcomponent(Iac).Theequation2representsthedecayingdccomponent(Idc)only.Thetotalshort-circuitcurrentiscalculatedbythefollowingequation:aT.Isc(RMS)~'ac.+~~~~3ItcanbeseenfromtheabovethatEDC-4hasusedonlydccomponentandnotthetotalvalueofshort-circuitcurrentforminimumcablesizingcalculation.2.ThePSARSection8.3.1~1.8on"ElectricCircuitProtection"statesthat"Thetimeovercurrentrelaysonthebusincominglineprovideprotectionagainstbusfaultsandbackupprotec-tiontoindividualfeedercircuitsfromthebus."AlsotheEDC-4,page19,statesthat"Itisalsodesirabletohavethecablewithstandtheshort-circuitforthebac}cuptriptimeofthefaultclearingdevice."STONKscWKSSTRR I

Wecannotconfirmtheminimumcablesize82/0listedonTablegofEDC-4usingthefaultcurrentof46,080amperesandbackupfaultclearingtimeof0.41sec(24.6cycles).However;asubsequentcalculation(datedAprilI,1983)providedbytheprojecthascalculatedaminimumcablesizeof.82/0usingIscof21,164amperesandaprimaryfaultclearingtimeof5cycles.AsdiscussedinItemNo.1above,thefaultcurrent(Isc)usedbytheprojectisonlythedccomponent(Idc).Alsotheuseofaprimaryfaultclearingtimeof5cyclesisnotconsistentwithSWECElectricalDivisionTechnicalGuidelineETG-IV-4-1.Thisguidelinerecommendsthataprimaryfaultclearingtimeof8cyclesbeused.Acalculationcheckwasmadetodeterminetheminimumcablesizerequiredtomeettheshort-circuitrequirementsforthe5-kVsafety-relatedsystem.Thiscalculationcheckindicatesthata.minimumcablesizeof83/0(32,100ampfaultcurrent,8cycleprimaryfaultclearingtimeand250'Cfinalconductortempera-ture)isrequiredwhichislargerthanl)2/0requiredbythecalculation.TheuseoftotalfaultcurrentinaccordancewithEquationNo.3andprimaryfaultclearingtimeof8cyclesmayimpacttheminimumcablesizerequiredtomeettheshort-circuitdutyforthe5-kVand15-kVnon-safetyrelatedsystems.'ISvoea&WaesTaR IIIg<

STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAN<POWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREUIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT~~.P.D.No.SystemServiceMaterPipingDisciplineSubjectTheDynamicModeLofSRVHydrodynamicLoadingforCalculation12177-AX-19FTaskNo.OpenItemReportNo.015DESCRIPTION:SeeAttachmentP.D.8015OriginatorReviewProjectEngineerEngineerManagementSponsorWr4'Date5=6-dC2/1217773/1/2RH03/074/83STONC0WKSSTCR Il ATTACHMENTP,D~r/015PageIof1Forpipestresscalculation12177-NP(C)-AX-19F,Rev.3,thedynamicmodel~sacutofffrequencyof23.8Hatits50thmode.ThiscutofffrequencydoessmtreachthepeakresponsefrequencyofSRVhydrodynamicARScurves(approximately.50H).withoutthecontributionsfromARSpeakresponse,theseanalysesmaynotasatisfactorydynamicresponse.However,itmaybeshovnthatthenumberofvibrationmodesusedforthisdynamicmodelwassufficientbyusingtheprocedureoutlinedinStandardRevievPlanSection3.7.3.Iftheinclusionofadditionalmodesdoesnotresultinmorethana10Kincreaseinresponse,theoriginalmodelwouldbeconsideredacceptable.SRVpeakaccelerationsareonlyaboutonetenth{1/10)ofseismicpeakaccelerations.Thesetwo(2)loadcasesarecombinedbySquareRootofSumoftheSquaresHethod(SRSS).ThiswillcausetheSRVtocontributelessthan1Xtothetotalload.TheexistingcalculationshovsthattheAS1KIII,Equation9stressesareasfollovs:10,010psiforNormalandUpset(18,000psiallowable)11,515psiforEmergency(27,000psiallowable)12,477psiforFaulted(36,000psiallowable)Theinclusionofadditionalmodesmayhaveanegligibleeffectonthepipestressandpipesupportloads.However,thepipestresscalculation12177-NP{C)-AX-19F,Rev.3mustberevisedtoconformwithStandardReviewPlan,Section3.7.3.Remainingservicewaterpipestresspackagesmustbereviewedtoensurethatnosimilarconcernsexist.STONC6WKBSTRR III STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT~~.P.D.No.016SystemServiceWaterPiincDisciplineSubjectSeismicARSEvTaskNo.N-SWP-02OpenItemReportNo.016DESCRIPTION:PipeStressCalculation12177-AX-19FSeeAttachmentP.D./J016OriginatorC6ReviewProjectEngineer-/a'ngineerManagementSponsorkD."=4ŽP5=t-73DateC2/1217773/1/2RH03/074/83k7sTogcaiwaasvaaML IIIII Page1of1ATTACHMENTP.D.8016Forpipestresscalculation12177-NP(C)-AX-19F~Rev.3,theinputseismicamplifiedresponsespectrum(ARS)curvesarefromcalculation12177-PX-01937,Rev..0whichprovidesseismicARSenvelopesatReactorBuildingelevations213.75'nd197'.ThisPXcalculationdoesnotincludetheseismicARSforthetunnelinwhichpartofthepipingislocated.TheuseoftheseARSenvelopesdonotcompletelysatisfythecommitmentofFSARSection3.7.3.9A.SeismicARScurvesforthetunnelatelevation250'reenvelopedbytheseismicARScurvesfortheSecondaryContainmentatelevations213.75'nd197',exceptnorth-southdirection'between3.44Hzto8.33Hzaffectingtwovibration,modes(seepages2,3and4).Onemodefallsbetween3.44Hzto5.5Hzwiththeaccelerationdifferencenotexceeding0.02Gandtheothermodebetween5.6Hzto8~33Hzwithaccelerationdifferencenotexceeding0.4G.hhenalltheresponsesarecombined,theresultantisestimatedtohaveaminimalincreaseinpipestressandpipesupportload.TheexistingcalculationshowsthattheAS'II,Equation9stressesareasfollows:'10,010ps%forNormal/Upset(18,'000psiallowable)11,515psiforEmergency(27,000psiallowable)12,477psiforFaulted(36,000psiallowable)ThestresscalculationwillberevisedtosatisfyFSARSection3.7.3.9A.Remainingservicewaterpipestresspackagesmustbereviewedtoensurethatnosimilarconcernsexist.STONC8WassTrR IIIIIII 45010.83STONE8WEBSTERENGINEERINGCORPORATIONCALCULATlONSHEETCALCULATIONIDENTIFICATIONNUMBERJ.O.ORW.O.NO.DIVISION6GROUPCALCULATIONNO.OPTIONALTASKCODEPAGE10%~rhinegL~/yuduHPCt;gBui~u'ig~~l2l31416I8l9202I222324o.sIIf262728303I32343536o.+404I4244450.0STONC&WCSSTCR IIII L5010.55STONE8,WEBSTERENGINEERINGCORPORATIONCALCULATIONSHEETCALCULATIONIDENTIFICATIONNUMBERJ.O.ORW.O.NO.DIVISION6GROUPCALCULATIONNO.OPTIONALTASKCODEPAGErgr$:I[gr$[3456789'0II1213141516171819202122242627lIIN-~DIR8hlr'rr5'"~B[rri/7vrjrrrEC~~29313234350ltIII37404142444S46DiDdi3(Sec,)

IIIIII 4.1LiX5010.55STONE8WEBSTERENGINEERINGCORPORATIONCALCULATIONSHEETCALCULATIONIDENTIFICATIONNUMBERJ.O.ORW.O.NO.DIVISION6GROUPCALCULATIONNO.OPTIONALTASKCODEPAGE~~IiltItItlp>Igl~ltgtliC$ed'7910l2141516Ie19202122242526272e0~29303132d234353637384154142IJIIrtII//Vgy'tlcU.Diroc-7v~/1I(~VixenCEe~~P~Oo./Zg'g0~~44450,cr>20%3>64STONC81WeeSTKR IIIII STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page.1of1POTENTIALDISCREPANCY(P:D.)REPORT~~.P.D.No.SystemOnsiteEmergencyACPowerSystemDisciplineSubjectAdequateVentilationforDieselGeneratorControlRoomsTaskNo.P-EPS-1OpenItemReportNo.017DESCRIPTION:FSARSection9.4.6.2.3statesthatamaximumdesigntemperatureof104'F&11bemaintainedintheStandbyDieselGenerator(Div.IandII)andHPCSDieselGeneratorcontrolrooms.Thetemperatureintheseroomsismaihtainedbyunitcoolers2HVP*UClAandBand2HVP*UC2.Calculation12177-EVP-6,Rev.1sizestheseunitcoolers.Theheatloadintheseroomsconsistsofatransmissionload,anelectricalequipmentload,andtheunitcoolerfanmotorload.Theoverallmarginforheat'oadinthecalculationisapproximately4X(thismarginrepresentsa5Xallovancefortheelectricalequipmentload).WhentheunitcoolerspecificationP412Hvasreviewed,itvasobservedthata5hpfanmotorvaspurchasedvhereasthecalculationonlyassumeda1hpfanmotor.Thischangeincreasestheoverallheatloadbyapproximately13X.Thereforetheunitcoolersareundersized.Originator.ReviewProjectEngineerf~AEngineerManagementSponsor~~CDate<c'3Sate+/i/+~DateK////+3C2/1217773/1/2RH03/074/8337STONEItWEBSTER II' STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT-~.P.D.No.018SystemServiceWaterDiscip]ineSnhjectIndicatorSwitcheson,Panel601TaskNo.C-SWP-4OpenItemReportNo.DESCRIPTION:SignificanceofConcern:QACat.IIswitchesspecifiedforQACat.Iservice.SeeAttachmentP.D.8018OriginatorReviewProjectEngineer/~P/EngineerManagementSponsork4nate>/Pg"~Date>(/~~DateC2/1217773/1/2RH03/074/83STONN'etWKSSTCRJSL t~~l~L~~l Page1of1ATTACHMENTP.D./3018ilililj!l~I!lThepushbutto'nswitchshownonLSK-9-10Nas"PBServiceWaterDiv.IManuallyInoperable"andlocatedonpanel601onESK-4CEC13AareusedinaQACat.I,Div.Isystem.ElectricaldevelopmentofthisswitchappearsonESK-7SWP13andESK-7SWP19inQACat.IcircuitsforServiceWaterInoperableconditions.ThetypeofswitchshownonESK-3E,detailMM,isspecifiedasgACat.II.Theswitchesaffectedare:1-1-2SWPA341-2-2SWPA341-3-2SWPA341<<4-2SWPA34I-5-2SWPA34Similarly,switchesshownonESK-7SWP06areingACat.IcircuitsbutareidentifiedonESK-3EasgACat.II.Theseaffectedswitchesare:1-6-2SWPA34through1-19-2SWPA34Asthebypassandinoperablestatusindication(R.G.1.47)isnotrequiredtobeCat.,I,theswitchesnotedasCat.IIwouldbeacceptableiftheyareelectricallyisolatedandphysicallyseparatedfromtheCat.Iportionoftheboard.STONE&WCQSTCR II~~~~~~~~~5

~aSTONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY{P.D.)REPORT.~~.P.D.No.SystemOnsiteEmergencyA-CPowerSystenDisciplineSubjectOneLine,Dwg.ReviewTaskNo.E-EPS-12OpenItemReportNo.DESCRIPTION:Theonelinedvg.EE-1Q-6indicatesthattheservicewaterpumpmotorprotectionrelay"50"hasnotripfunctionandtherelay"50D"tripsthelockoutrelay"86".However,theelementarydwg.ESK<<5SWP07,Sh2of2(1/24/83)indicatesthattherelay"50"tripsthelockoutrelay"86"andtherelay"50Dggprovidesanalarmsignal.rItappearsthattheonelinedvg.EE-1Q-6villhavetoberevisedtobeinconformancewiththeLSK-9-10AandESK>>SSWP07.2.Theelementarydwg.ESK-5SWP07Sh2of2showsacommonemergencytransfersvitchlocatedattheremoteshutdownpanelforthethreeservicewaterpumps.Nosuchcommonswitchisshovnontheonelinedwg.EE-1Q-6.3~Theonelinedwg.EE-1Qindicatesthattheauxiliaryrelay27X2/2ENSX04istrippingthebreaker101-1.However,theESK-5ENS21,{2/8/83),Sh1of2,theauxiliaryrelay27X2/2ENSX04doesnottripthebreaker101-1.Itappearsthattheonelinedwg.EE-1Q-6villhavetoberevisedtobeinconformancewithESK-5ENS21.OriginatorReviewProject,Engineer'/5~EngineerNanagementSponsorAk4~5.a.DateC2/1217773/1/2RH03/074/83SToNe4WessTeR I

STONEErWEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm.9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.021SystemOnsi,teEmergencyA-CPowerSystemDiscippineSQhjectReviewoftheone-1inedwg.12177-EE-1Q-6TaskNo.E-EPS-12OpenItemReportNo.DESCRIPTION:SeeAttachmentP.D.0021OiiginatorRevievProjectEngineer+<~M'A~~--EngineerManagementSponsor4d.Date5-h-Date5DateC2/1217773/1/2RH03/074/83STONLeagWKSSTCR I

Page1ofIATTAQGKNTP.D.8021TheFSARSection8.3,Page8.3.19statesthat:"Duringemergencyoperation,thestandbydieselgeneratorisshutdownandthediesel-generatorbreakertrippedunderthefollowingconditions:~a.Engineoverspeedb.Generatordifferentialorgeneratorphase-overcurrent."F1.Reviewoftheone-linedwg.EE-IQ-6indicatesthatthegeneratorphase-overcurrentrelay50/51Vtripsauxiliaryrelays51V/Xand86-2/2EGPX02.Theauxiliaryrelay51V/Xtrips.thegeneratorsupplybreaker101-1andtherelay86-2/2EGPX02locksouttheautoclosecircuitofthebreaker101-1.Neitheroftheseauxiliaryrelaysareshowntobetrippingthedieselengine.2.Thenote82,dwg.EE-IQ-6,statesthatthelossofgeneratorexcitation(40),thereversepower(32)andthegroundovercurrent(5IN)relayprotectivetripswillbeoperativeonlywhenthedieselgeneratorisbeingtested.Ho~ever.thedieselgeneratorcanalsosupplypowertotheemergencybusduringalossofoffsitepowerwhichisnotanemergency(LOCA)condition.-Therefore,therelays40,32and51Nshouldnotbebypassedduringthiscondition.Fore:There1eya40,32aud3luarereaudredto'hehyyaaaeddurdura..emergency(LOCA)condition.STONE0WEBSTER IIJf STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page.1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.022SystemStandbPowerSstemDisciplineSubjectFlowElementSizinTaskNo.C-EPS-3OpenItemReportNo.022DESCRIPTION:SignificanceofConcern:FSARTable7.3-15commitstoarequiredFuelOilTransferPumpFlow(low)~instrument.rangeof0-30gpm.Perspeci%.cationC011N,Rev.1datedAugust9,1982flowelements2EGF*FE13A,*FE13B,*FE104weresizedandpurchasedtopassamaximumflowof20gpm.OriginatorReviewProjectEngineerEngineerManagementSponsor~DaterPare57r(<3Date5l//C2/1217773/1/2RH03/074/83g7STONKeWCIISTIR

'II STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.SystemOnsiteEmerencA-CPowerSystemDisciplineSubject600VCableSizinC1ionTaskNo.E-EPS-7OpenItemReportNo.023DESCRIPTION:HCalculationHo.EC-59-1referstoElectricalDesignCriteriaEDC-4fortheminimumcablesizerequiredtomeettheshort-circuitdutyfor600-Vloadcenterfeeders.ElectricalDesignCriteriaEDC-4;page19,statesthat"Forloadcenterfeeds,theback-.uptimeaf30cyclesisusedtoyieldaminimumsizeoff1.0AWG.Thistooisanimpracticalresult;howeverasthenumberofloadcenterloadsisrelativelylow,theresultwillbeimposed."WecannotconfirmtheminimumsizeofHo.1/0-AWGcableindicatedinTableQofEDC-4tomeetshort-circuitdutyfor600-Vloadcenterfeed-ers.NOTE:TheEDC-4permitstheuseof650'Cfinalconductortem-peratureduringashort-cIrcuitcondition,whichishigherthan250'CconductortemperaturerecommendedbySWECElectricalDivisionTechnicalGuidelinesETG-IV-4-1.Theseissuesofminimumcablesize,fault-clearingtime,andconductortemperatureshouldberesolved.+iginator%vienProjectEngineerg(~Q.+c4ug.-EngineerManagementSponsorM~H*Da~iS~Dat~5~6'~3C2/1217773/1/2RH03/074/83STONIK&WCBSTKR II STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P'.D.REPORTP.D.No.024SystemOnsiteEmergencyACPowerSystemDisciplineSubjectAdequateVentilationfortheEmergencySvitchgearAreaTaskNo.P-EPS-2OpenItemReport.No.024DESCRIPTION:FSARSection8.3.2.1.2statesthatbatteryroomexhaust.isdischargedtoatmospheretolimithydrogenaccumulationtolessthaa2Xbyvolumeandmaintainbatteryrooms(DivisionI,II6HPCS)temparatureat65>>104'F.:FSARTable9.4-2lists-thecapacityoftwo100Kcapacityexhaust.fan's(2HVC*FN4A,4B)as1275CFH'e~eachforthesebatteryr'ooms..CalculatipnHVC-40dated1-5>>81andFlovDiagrams(FSK-22-9B,C6D)indicateexhaustfans'apacityas1275CFMforthesebatteryroomsmeetingdesignrequirementsandFSARcommitments.Thecapacityofthepurchasedexhaustfans(perSpecificationP413R,Addendum3,2-23-79)is2725CFNeach.Sincetheductvorkanddampersveresizedfor1275C&f,theincreasedflowcouldleadtoexcessivepressuredrop.Thiscouldalsoleadtoexcessivepressuredropacrossthebatteryroomfiredampers.Theresultantsystemimbalancecouldtakeavaycooledairfromtheemergencysvitchgeararea.Thecorridorairsupplysystemvouldalsobeimbalancedduetohighermake-upairflamdrawnfromthecorridorthroughfiredampers,DMPF118aad221~bytheunitcoolersiathesvitchgeararea.Ifthefaacapacityremainsat2725CFM,thenthesystemdesignforthehigherairflovrequirementsshouldbereevaluated.~e@iginator%tviewProjectEngineerEngineerManagementSponsorC2/1217773/1/2RH03/074/8337STONathWaaSTCa IIII~

STONE8WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITN0.,2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.025SystemOnsiteEmergencyA-CPowerSystemDisciplineSubjectElectricalControlBoardReviewTaskNo.C-EPS-3OpenItemReportNo.025DESCRIPTION:SignificanceofConcern:1.Non-compliancewithFSARcommitments.2.MainControlBoardHumanEngineeringdiscrepancies.SeeAttachmentP.D.8025'Kgiginator%viewProjectEngineerI'~rtW>>EngineerManagementSponsorDate.SDa~~/>Dat~C2/1217773/1/2RH03/074/8327STONKthWcssTKR III Page1of2ATTACFMEiilTP,D.f/0251.ThePSARSection8.3.1commitstoprovideinthemaincontrolroom\lannunciationofconBitionswhichrendereachstandbydieselgeneratorincapableofrespondingtoanemergencyauto-startsignal.AccordingtoESK-4CEC01/hev.5andLSK-9-3series,thefollowingalarmshavebeenomitted:'c)Airinletisolationvalveclosed""d)Turninggearinincorrectposition""e)DCcontrolpowerfailureatenginepanel"2.DivisionIEmergencyDieselGeneratorAnnunciatorPanel852100includes:a)EmergencyDieselGenerator1-3ServiceWaterInletPeaderPressureLow,Annunciator852124b)EmergencyBus101ProtectionDCPowerPailuze,Annuaciator852140TheredundantDivisionIIEmergencyDieselGeneratorAnnunciatorPanel852200doesnotincludesimilarannuaciators.3.A.Theannunciatorwindowazrangementmatrixdiffersbetweenredundantpanels852100and852200.PSARSection1.10,ItemI.D.1,ControlRoomDesign":..ev-e.:commitstotheguidelinesofNUREG0?00.PerNUREG0700'Section6.3,AnnunciatorWarningSystems,6.8.2.3LayoutConsistency,6.8.2.4Standardizationand6.9.2.2itemDConsistentPractice,theaimistoprovide:a)Positivetransferoftrainingb)CodingbypositionPresentannunciatorlayoutdoesnotmeettheseguidelines.3.B.AnnunciatorPanel852100DivisionIismountedaboveitsassociatedDivisionIindicatorsandcontrolsbutoverlapsaboveDivisionIIindicatorsandcontrols.SimilarlyAnnunciatorPanel852200DivisionIIoverlapsaboveDivisionIIIindicatorsandcontrols.PerNUREG0700Section6.3.3.1,VisualAnnuaciatozPanels,thefollowingguidelineshouldbecoasidered:"a)location-visualalarmpanelsshouldbelocatedabovetherelatedcontrolsanddisplayswhicharerequiredforcorrectiveordiagnosticactioninresponsetothealarm"sToNaewaasvca IIlI

IPage2of23.C.PerNUREG0700Section6.3.3.4VisualTileLegends-"Abbreviationsandacronymsshouldbeconsistentwiththoseusedelsewhereincontrolroom."AnnunciatortitlesbetweenDivisionIwindows852129and852122andDivisionIEendows852231and852224respectivelydifferinwordingand/orabbreviations.I(IpigII(lIIIISTONK&WKSSTKR IIII STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1-of1POTENTIALDISCREPANCY,(P.D.)REPORTP.D.No.026SystemServiceWaterDisciplineSubjectVTaskNo.N-SWP-08gnOpenItemReportNo.026DESCRIPTION

Toaccountfordynamicmovements>FSARSection3.9.3.4.1Astatesthatspringhangersaredesignedfordown-travelandup-travelmovementsinexcessofthespecifiedthermalmovement.Inpipesupportcalculation12177-219-0122,dated8-3-79thepipemovementsdue=todynamicloads(seismicandhydrodynamic)werenotconsideredwhencheckingtheworkingrangeofthevariablespringhangers.ThisconcernappliestoallvariablespringhangersinpipestresspackagesAX-19LandAX-19Funderreview./@iginator/VtviewProjectEngineer~/~A.EngineerManagementSponsorDateC2/1217773/1/2RH03/074/83$7STONC&WassTaR llIlI STONE&WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORTP.D.No.SystemServiceWaterDisciplineSubjectInstrumentPipingTaskNo.C-SWP-6OpenItemReportNo.031DESCRIPTION:SignificanceofConcern:PDIS-70A671AHi6LoLegsimproperlytiedtogether.Ltlil.IILIplilSeeAttachmentP.D.8031@iginatoriviesProjectEngineerl<~Ji~'IEngineerManagementSponsorDate.Sd3Da~>/Pl~3n.."-Sl~IIC2/1217773/1/2RHt03/074/83jk7STONCthWcsdTKR IIIIIl SIGNIFICANCEOFCONCERN:ATTACHMENTP.D.$/031(Ij~;lI(IprlIig~ljl~gFSKM-lOAC&LSK9-lOUrequirespressureswitchesPDIS-70Aand71AtoprovideTrashRacks&TravelingScreenHidifferentialpressuresignalsforalarmintheControlRoom.InstrumentPipingdrawingEK19B-2showsHi&LoLegsofbothPDIS-70A&71Ainterconnectedtothehighsidepiping(seezoneI-4).AccordingtoFSK9-10ACthepipingshouldbeas.follows:HiLegtoHighSidePDIS-70ALoLegofPDIS-70AtoHighLegPDIS-71ALoLegofPDIS-71AtodownstreamofTravelingWaterScreenSTdNK0WcssTKR IIIl STONE6WEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT"NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1lI\gQIgl(IIIIPOTENTIALDISCREPANCY(P.D.3REPORTP.D.No.SystemServiceWaterPipingDisciplineSubjectARSPeakSpreadingTaskNo.N-WP-02OpenItemReportNo.OggDESCRIPTION:FSARSection1.8commitstocomplywithRegulatoryGuide1.122inthedevelopmentoffloordesignresponsespectraforseismicdesignoffloor-supportedequipmentorcomponents.SWECcomputercodePSPECTRA(describedin,FSARSection3.7.3.8.3A)isdesignedtoimplementthepeakspreadingcriteriaofthisRegulatoryGuide,aswellasforenvelopegeneration.TheARScalculation12177-PX-01907usestheoldercomputercodeCURVE2(ME-117)forenvelopingseismicresponsespectra(ARScurves)andthereisnootherdesigncalculationreferencedtoaddresstheRegulatoryGuiderequirement.ItisnotclearhowtherequirementofRegulatoryGuide1.122isaddressed.Pipestresspackages,suchasAX-19L,whichusetheresultsofthiscalculationastheirdesigninputshouldalsobere-evaluated.Calculation12177-PX-01907,whichwasdoneasperPSARrequirement,wasvoidedinApril,1983andisnowsupersededbytheARScalcula'tion'12177-PX-'01957inwhichpeakspreadingofARSisdoneinaccordancewithFSAR3.7.3.8.3AandRegulatoryGuide1.122.However,NMP2projectindicatesthatanypipestresspackagewhichusestheresultof12177-PX-01907(useoldercomputercode)asitsdesigninputshallberevisedtouse12177-PX-01957.Inaddition,areviewwillbeperformedbyNMP2projectonotherpipestressanalysispackagestoensurethatnosimiliarconcernexists.OriginatorDa~5:4-~Revtenpro]ectEngtneerAll~M'/<<~DatgEngineerManagementSponsorAp.t.5.=P-WC2/1217773/1/2RH03/074/83STOvc6WassVaa IIIIIII STONESrWEBSTERENGINEERINGCORPORATIONNIAGARAMOHAWKPOWERCORPORATIONNINEMILEPOINT-NPPUNITNO.2INDEPENDENTDESIGNREVIEWPROGRAMForm9Page1of1POTENTIALDISCREPANCY(P.D.)REPORT~~.P.D.No.SystemServiceWaterLineDisciplineSubjectPipeSupportdesignforGeologicalMovements.TaskNo.H-SMP-08OpenItemReportNo.033DESCRIPTION:Pipestresscalculation12177-NP(C)-AX-19F;Rev.3,dated10-28-82providespipesupportloadsduetogeologicalmovementsinadditiontootherloadings.Thesesupportloadsarenotusedinsupportdesigncalculation12177-219-0338.Insteadofusingthesepipesupportloadsfordesigningthesupport,an,earlierrevision,withoutsuchloadsduetogeologicalmovements,wasused.Inaddition.thecurrentrevisionofpipesupportloadshashigherthermalloadsthantheones~~usedinthepresentdesign.Thispipesupportdesignanditsstructuralattachmentloads(providedonthepipesupportstructuralattachmentloadschedule)mayhavetoberevised.HMP2projectindicatesthatthispipesupportcalculationshallberevisedtoincludeloadsduetogeologicalmovementsinthenextupdate.OriginatorReviewProjectEngineerEngineerManagementSponsorW~DateDateC2/1217773/1/2RH03/074/83STONC4WCSSTKR IIII Stone8WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP-2-0J.O.No.12177.73CONSTRUCTIBILITYREVIEWFINDINGTaskNo./Description:No.1-ITTGrinnellReortl.Itemsofconcern/Itemunderreview:.Sheet1of2TASKFORCEREPORT--REVIEWOFPIPINGERECTIONPROBLEMS--March19,1981,andfollowupreportsofMay4and7,1981,werethoroughlyreviewedtodeterminetheextenttowhichrecommendationshavebeenimplemented.2.Sourceofinformation,personscontacted,backgroundonsubjectmatter:DuringtheweekofApril4,1983,SWECpersonnelF.M.Sheldon,R.K.Headrick,andE.P.Eichenwerecontactedandprovidedresponsetoourinquiriesregardingimplementationofrecommenda-tions.FollowupconversationswereheldduringtheweekofAprilll,1983.3.Finding:Allrecommendationshavebeenaddressedandimplemented.ImplementationofthefollowingthreerecommendationsappearstofallshortoftheTaskForce'sintent:a.Qualityofnonmanualpersonnelb.Six-monthversus12-monthlookaheadc.Preinstallationwalkdownbynonmanualpersonnel.4.Evaluationofpotentialimpactandconclusions:a~Qualityofnonmanualpersonnel-Significantimprovementhasbeenmadeoverthepast2years,primarilyinmanagementandsupervision.EngineeringandplanningpersonnelstillincludesomeindividualsonloanfromSWEC.Withoutcontinuedimprove-mentinstaffpersonnel,ITTGrinnellisnotlikelytoquickenitspaceassmallboreandsystemcompletionare"addedtothepresentlevelofeffort.b.Six-monthversus12-monthlookahead-Theshorterwindowdoesnotappeartobehavinganydetrimentaleffect.However,theneedtobeginspecificpreparation(planning)forsysteminstal-lationisleavinglargeamountsofrework(clearingofunsats,etc)andsystemcompletiontaskstotheend.AsignificantefforttoplanthetimeandrequiredmanpowerforOriginatedby7iF9Review/Concurrence'Y/i+iZ9SignarDateConructionManagerC2/1217773/8/2RHSTONE&WEBSTER IIIIII TaskNo.1Sheet2of2thesetasksinsupportofthestartupscheduleisnecessaryforsuchascheduletobeconsideredvalid.c~Preinstallationwalkdownbynonmanualpersonnel-TaskForcewasinitiallyconcernedwiththeuseofmanualcraftsmenforthiswalkdownactivity.Itappearsthatsuchconcernisnotnowwarranted.Presently,ITTGrinnelliswalkingdownhangerswithamixofpersonnel,bothmanualandnonmanual,withgene-ralsuccessandschedulebenefit.IncreasedeffortsalongthesesamelinesforsmallboreinstallationcouldcontributetofurtherimprovementofITTGrinnell'sscheduleperformance.C2/1217773/8/2RHSTONa0WassTKR III Stone6WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP-2-0J.O.No.12177.73CONSTRUCTIBILITYREVIEWFINDINGTaskNo./Description:No.2(a)-SuortsInterferences-GeneralOverviewSheet1of21.Itemsofconcern/ItemunderreviewGeneralaspectsofsiteconcernsregardingsupportsinterferences.2.Sourceofinformation,personscontacted,backgroundonsubjectmat-tera.Electrical:A.Fallon,ProjectManager-L.K.ComstockJ.Ronco,AssistantSuperintendentofConstruction-SWECJ.Lowry,ConstructionSupervisor-SWECD.Parkhurst,GeneralForeman-L.K.Comstockb.Instrumentation:W.Dunn,ProjectSuperintendent-JohnsonControls,Inc.c.Mechanical:J.White,ProjectManager-ITTGrinnellE.Eichen,Mechanical/PipeConstructionSuperintendent-SWECT.Staehr,ConstructionEngineer-SWECK.Ostien,PipingSupervisor(Night)-SWECJ.McIoughlin,NightShiftSuperintendent-SWECJ.Supernavage,NightShiftEngineer-SWECT.Johnson,ConstructionSupervisor-SWECd.SiteEngineering:L.E.Shea-SWECJ.Giler-SWECT.Landry-SWECM.Oleson-SWECP.P.Svarney-SWECL.Theriault-SWECL.Zak-SWECOriginatedby.r'ignae149Review/Concurrence~WDa-//"~>DateConsuctionManagerC2/1217773/8/2RHSvoNc6Wassvaa I

TaskNo.2(a)Sheet2of2TaskNo.2(a)-SupportsInterferences-GeneralOverview(Cont)~BackroundOverthepastseveralmonthsithasbecomeevidentthatpreengi-neeredCategoryI/seismicconduitwasnotthoroughlycheckedforinterferences.(Somepotentiallyinterferingitemswereissuedafterconduitdrawingswereissued,also.)Apparently,conduit(primarilydirect-attachedconduitonwallsandbuildingsteel)isa"wildcard"inthepreengineered"deck".Smallborepipe,tubing,andsupportshaveapparentlybeencheckedpriortoissuance.Also,itappearsthatthesizeofsmallboresupportbaseplatesandcon-duitsupportbaseplatesismuchgreaterthanwouldbeexpectedforthegivenlinesize,therebyincreasingthepotentialforinter-ferences.3.P~indin,AlargeportionofsupportsinterferencesarebetweenCategoryI/seismicpipesupports(largeboreandsmallbore)andelectricalconduit(bothunscheduledfield-runlighting/communicationsandscheduledCategoryI/seismicconduit).Unscheduledconduitsarereworkedasrequired.ScheduledconduitinterferencesareresolvedviaACN(ifdrawingchangeisrequired)toreworkconduitorrevisesupportasappropriate.4.EvaluationClearing.ofinterferencesonscheduledelectricalconduitarrange-mentdrawingsdidnotliveuptoexpectationsofthepreengineeredconcept.Also,manyoftheinterferencesoccurwiththosescheduledconduitsattacheddirectlytowalls.Direct-attachedconduitroutingisnotpreengineered.Reworkfortheseconduitsmaybeashighas30percentratherthanthe10to12percentexpected.Conclusion:Atpresentrateadd10to17percenttototalestimatedman-hoursforconduitinstallationasmarginforreworkduetointerferences.Adjustmanpowerorscheduleaccordingly.C2/1217773/8/2RHSToNa&WeosTaR II StoneSWebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP-2-0J.O.No.12177.73CONSTRUCTIBILITYREVIEWFINDINGTaskNo./Description:No.2(a)-SuortsInterferences-GeneralOverviewSheet1of21.Itemsofconcern/ItemunderreviewGeneralaspectsofsiteconcernsregardingsupportsinterferences.2.Sourceofinformation,personscontacted,backgroundonsubjectmat-tera.Electrical:A.Fallon,ProjectManager-L.K.ComstockJ.Ronco,AssistantSuperintendentofConstruction-SWECJ.Iowry,ConstructionSupervisor-SWECD.Parkhurst,GeneralForeman-L.K.Comstockb.Instrumentation:W.Dunn,ProjectSuperintendent-JohnsonControls,Inc.c.Mechanical:J.White,ProjectManager-ITTGrinnellE.Eichen,Mechanical/PipeConstructionSuperintendent-SWECT~Staehr,ConstructionEngineer-SWECK.Ostien,PipingSupervisor(Night)-SWECJ.McLoughlin,NightShiftSuperintendent-SWECJ.Supernavage,NightShiftEngineer-SWECT.Johnson,ConstructionSupervisor-SWECd.SiteEngineering:L.E.Shea-SWECJ.Giler-SWECT.Landry-SWECM.Oleson-SWECP.P.Svarney-SWECL.Theriault-SWECL.Zak-SWECOriginatedby.rSignae/49Review/Cencnccence~Ig~W8-/l-~+DateConsuctionManagerC2/1217773/8/2RHsTQNcacwcssTcR II TaskNo.2(a)Sheet2of2TaskNo.2(a)-SupportsInterferences-GeneralOverview(Cont)~BackroundOverthepastseveralmonthsithasbecomeevidentthatpreengi-neeredCategoryI/seismicconduitwasn'otthoroughlycheckedforinterferences.(Somepotentiallyinterferingitemswereissuedafterconduitdrawingswereissued,also.)Apparently,conduit(primarilydirect-attachedconduitonwallsandbuildingsteel)isa"wildcard"inthepreengineered"deck".Smallborepipe,tubing,andsupportshaveapparentlybeencheckedpriortoissuance.Also,itappearsthatthesizeofsmallboresupportbaseplatesandcon-duitsupportbaseplatesismuchgreaterthanwouldbeexpectedforthegivenlinesize,therebyincreasingthepotentialforinter-ferences.3.cindiaAlargeportionofsupportsinterferencesarebetweenCategoryI/seismicpipesupports(largeboreandsmallbore)andelectricalconduit(bothunscheduledfield-runlighting/communicationsandscheduledCategoryI/seismicconduit).Unscheduledconduitsarereworkedasrequired.ScheduledconduitinterferencesareresolvedviaACN(ifdrawingchangeisrequired)toreworkconduitorrevisesupportasappropriate.4.EvaluationClearingof'nterferencesonscheduledelectricalconduitarrange-mentdrawingsdidnotliveuptoexpectationsofthepreengineeredconcept.Also,manyoftheinterferencesoccurwiththosescheduledconduitsattacheddirectlytowalls.Direct-attachedconduitroutingisnotpreengineered.Reworkfortheseconduitsmaybeashighas30percentratherthanthe10to12percentexpected.Conclusion:Atpresentrat'eadd10to17percenttototalestimatedman-hoursforconduitinstallationasmarginforreworkduetointerferences.Adjustmanpowerorscheduleaccordingly.C2/1217773/8/2RHSTONE&WEIBSTER IIIII Stone&WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP"2-0J.O.No.12177.73CONSTRUCTIBILITYREVIEWFINDINGTaskNo./Description:No.2(b)-SuortsInterferences-~ControlBuildinExamlesSheet1of31.Itemsofconcern/Itemunderreview:a.ARRGTCNDandSIMCSPRTSCONTROLBUILDINGEL214FT0IN.SH-1DrawingNo.12177-EE-420B-2E&DCRNo.C41,461datedJune22,1983SupportNo.CRD102Rwasrelocated3in.totheeastinordertoresolveinterferencewithfloordrainpipingandpipehangers.(E&DCR'initiatedJune14,1982;answeredJune22,1982.,)b.ARRGTCNDandSIMCSPRTSCONTROLBUILDINGEL237FT0IN.SH-1DrawingNo.12177-EE-420E-3ACNNo.000758datedNovember5,1982(EngineeringfinalapprovalviaE&DCRNo.C41,902onDecember10,1982)4-in.conduit2CL507YD-4directlyattachedtobuildingsteelofceilingslabinterferedwithcabletraysupportsteel.Inter-ferencewasresolvedbymovingconduit3in.tothesouth.Clarificationofdimensionfordirectattachmentwasalsoprovided.c.ARRGT-CNDandSIMCSPRTSCONTROLBUILDINGEL288FT6IN.DrawingNo.12177-EE-420SE&DCRNos.C41,828andC42,341ConduitsupportsasshownondrawinginterferedwithHVACductsupports.Resolutioninvolvedmovingconduitandsupports6in.(Nochangetospanbetweenconduitsupports.)2.B~ackroundCategoryI/seismicconduitsupportsarerequiredbygeneralnotesonDrawingNo.EE-420Atobeinstalledto+1in.ofthelocationshownonthedrawing.AlldeviationsrequirepriorEngineeringapproval(viaACNorE&DCR).C2/1217773/8/2RHSTONE&WEBSTER IIgI TaskNo.2(b)Sheet2of33.~FindinPreengineeringofCategoryI/seismicconduitshasnoteliminatedmanyinterferences.Also,CategoryI/seismicconduitdirectlyattachedtobuildingwallshasnotbeenpreengineeredaddingtothenumberofinterferences.4.EvaluationandPotentialImactWhetherornotthemanyinterferencesdocumentedtodaterepresentanunusuallyhighnumberisdifficulttodetermine,sincemanysuchinterferencesoccuronalljobs.ItisworthnotingthatmanyoftheE&DCRsissuedoverthepast9monthstoresolveinterferencesrequiredonlyrelativelysmallandsimplechangestodimensions.Therefore,manyinterferencesthatmightotherwiseberesolvedinthefieldbycraftsmenmustbepassedbacktotheengineeranddocumentedonanE&DCR,makingthenumberofdocumentedinterfer-encesunusuallyhigh.Whilealargenumberofinterferencesisundesirable,regardlessofhowtheyarehandled,thefactthatjobspecificationsallowthecraftsmenonly+1in.toresolvetheirinterferencesnecessarilymeansthatmoreresolutionsbytheEngineers(i.e.,documentationviaACNorE&DCR)arerequired,withtheirassociatedtimerequire-ments.Inaddition,conduitinstallationinthepasthasbeenlargelyamatterofthecraftsmenestablishingthebestrouteinthefieldusingto/frominformationafterpracticallyeverythingelsehasbeeninstalled.Foranoffice-bounddesignertopresumetorouteconduitinanunmodelledareaisboundtocreatetheinterferencesbeingencountered.Yet,itisrecognizedthatstructuralevaluationoftheconduitandconduitsupportssystemmustbeaccomplished,andtheengineeringdrawingwithspecifiedroutingisthevehiclechosen'orthatpurpose.Further,structuralevaluationandsignoffisrequiredoneachE&DCRrevisingconduitrouting,thusaddingtotheapprovalcycle.Giventheabove,itisconcludedthat:a~Asystemprovidinggreaterflexibilitytoresolveconduitinterferenceswithoutadrawingdeviationwouldenhancetimelycompletionofconduitinstallation.(Suchasystemmight,allowconduitrelocationof1ftormoreprovidedsupportsystemrema'inedthesameormightallowsupportsrelocationuptoamaximumspan;anincreasetolocaltolerances,however,shouldbeusedonlytoresolveinter-ference.)C2/1217773/8/2RHSTONE&WEBSTER llII

/TaskNo.2(b)Sheet3of3b.Agreaterspiritofcooperationandcommunityforgettingtheconduitinstalledwouldenhancetimelycompletion.Thefollowingmightbeconsidered:~Encouragecontractor(particularlyhisforemenandsupervisors)torequestimprovementsoroffersugges-tionstotheEngineersforconduitrouting/reloca-tion,e.g.,directattachmentatinsertsonawallinlieuofcantilevered(engineered)supports.Respondtosuchrequestsinatimelymanner.~Bringtheengineersauthorizedtoapprovechanges(ACNs)closertotheworkareatoallowthemtodevelopagreaterteamspiritwiththoseperformingtheinstallation.~Include-PQCinthecircleofcommunicationwhenrevisingspecificationordrawingguidelines.c~ThenumberofESDCRsperconduitarrangementdrawingismuchtoohigh.InstallationratesforconduitinthecontrolbuildingareprobablytypicalofwhatcanbeexpectedforthebalanceoftheCategoryI/seismicareas.Thus,atpresentrate,conduitinstallationislikelytorequiremoreman-hoursthanoriginallyanticipated.Adjustmentstomanpowerandgreaterflexibilityofinstal-lationtoresolveinterferenceswouldmakethepresentscheduleachievable.C2/1217773/8/2RHSTONE8r,WEBSTER III Stone&WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramCONSTRUCTIBILITYREVIEWFINDINGRPP"2"0J.O.No.12177.73TaskNo./Description:No.2(c)-SuortsInterferences-ReactorBuildinExalesSheet1of21.Itemsofconcern/Itemunderreview:a~ARRGT-COND&SIMCSPRTS.REACTORBUILDINGEL240"0DrawingNo.12177-EE-460ABCOND&SEISMICSUPPORTSREACTORBUILDINGEL240FT0IN.DrawingNo.12177-EE-460ELInaccordancewithE&DCRNo.C15,867,bankof53/4-in.con-duitsandjunctionboxrequiredrelocationtoavoidsmallborepipesupport.E&DCRbothgeneratedandansweredonJanuary12,1983.b.ARRGT-COND&SIMCSPRTSREACTORBUILDINGEL175FT0IN.DrawingNo.12177-EE-460BInaccordancewithE&DCRNo.C14,807(revisedbyE&DCRNo.F10,851),conduitsupport6B08requiredrevisiontoavoidinterferencefrompipesupportonBZ-137X.2.~BackroundMuchoftheconduitinthereactorbuildingisdirectlyattached.ThenumberofE&DCRs/ACNstoresolveinterferencesisconsiderablylessperdrawingthanwasthecaseinthecontrolbuilding.Also,GeneralNotesforthereac'torbuilding(EE-460A,460S)nowallowfieldadjustmentinanumberofareas,e.g.,6-in.relocationtohitcenterlineofsteel,rotationofpostsupports,andoffsetsbetweensupports.Also,interferenceswithdirectlyattachedconduitcanberesolvedbymovingtheconduitwithoutanE&DCR.3.3~indiaThetwoE&DCRslistedabovedescribeconduitinterferenceswithpipesupportsinthereactorbuildingandrepresentthetypicalscopeofsuchinterferencesfortwodrawings.C2/1217773/8/2RHsvoNEaiwessvaa IIIIII TaskNo.2(c)Sheet2of24.EvaluationandPotentialIactSomemovementtowardsgreaterinstallationflexibilityisapparentinthereactorbuildingconduitdrawings.Inteferenceswillcon-tinuetooccur,particularlywithconduitattacheddirectlytowallsandstructuralsteel,requiringadditionalreworkman-hours.Theextentofthisreworkmaybe30percentoftheoriginalinstallationman-hours.C2/1217773/8/2RHSvoNetkWcosmR III Stone&WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP-2-0J.O.No.12177.73CONSTRUCTIBIIITYREVIEWFINDINGTaskNo./Description:No.2(d)-SuortsInterferences-G-LineWall(Screenwell)1.Itemsofconcern/ItemunderreviewSheet1of2G-LineWallInterference(betweenpipesupportsfortwo3-in.lubeoillinesandadjacentcabletray)E&DCRNo.C51,450relocatedlubeoillines2LOS-003-9and-14andplacedsupportsfortheselinesonholdduetointerferences.Sup-portsweresubsequentlyissuedonE&DCRNos.V50,233andV50,251approximately2monthslater.Designcheckoflocationforthese3-in.linesandtheirassociatedsupportsapparentlydidnotcor-rectlyaccountfortheadjacentcabletrays.2.~BackroundTrayarrangementwasissuedforconstructiononApril6,1978,asEE-34AP-3,CABLETRAY'ARRANGEMENT,SCREENWELLBUILDINGel261ft.tubeoil"lines2IOS-003-9and-14firstissuedonSeptember20,1978,'asEP-41C-1,TURBINELUBEOILPIPING,SCREENWELLBUILDING.SupportswereissuedbyITTGrinnellonBZ-41GOOXseriesdrawingswithfirstissuesbeingapprovedbySWECinMarch1980.3.~FindinPipesupportsfortwo3-in.lubeoillines(piperoutingissuedbySWEC;supportsissuedbyITTGrinnell)interferedwithelectricalcabletraysissuedearlier.4.EvaluationandPotentialIactThisinteferencedealswithaCategoryIIinstallationand,assuch,involvespipesupportsdrawingspreparedbythecontractor.There-fore,thesolutiontotheinterferencenotonlyinvolvedSWECdrawingrevision(piperoutingchanges)butalsocontractordrawingchanges.Themultipartyinvolvementmayhavecontributed,totheneedforthreeE&DCRstoprovideafinalsolution.ItwouldappearthattheoverallsolutionmighthavebeenestablishedatonetimewithallpartiesandthenissuedasonesolutionononeE&DCR(oronegroupofE&DCRs)atonetime.TheissuanceofthreeE&DCRsoveramorethan2-monthperiodtofinallyresolvetheinterferencecon-tributedtothefrustrationoftheconstructionforcesresponsiblefortheinstallation.C2/1217773/8/2RHaSTONeacWEBSTERARK III TaskNo.2(d)Sheet2of2Determiningtheextentofscheduleimpactduetosuchproblemsandmannerofresolutionwouldbesubjective.Thisinterferencemaywellhavebeenthemostglaringorannoyingatthetimeofthesitevisit.Itisconcludedthatmoretimelyandthoroughresolutionofinterferencesbytheresponsiblesiteengineer(s)forthegivendiscipline(s)workingwithallinvolvedpartieswillbenecessarytomaintainthepresentschedule.C2/1217773/8/2RHsvoHc&WeasveR IIII Stone&WebsterEngineeringCorporationNiagaraMohawkPowerCorporationNineMilePointNuclearStation-Unit2IndependentDesignReviewProgramRPP-2-0J.O.No.12177.73CONSTRUCTIBILITYREVIEWFINDINGTaskNo./Description:No.3-InstallationPracticalitSheet1of2Nl.Itemsofconcern/Itemunderreview:a.Issuedforconstructiondrawingsingeneral-canfieldusethemasis.b.=Tenspecificproblems;seeseparatesheets(attached).2.Sourceofinformation,personscontacted,backgroundonsubjectmat-ter:SameasTaskNo.2.Siteinterviewswereconducted,afieldwalk(withsomesupervisorsandforeman)wasmade,anddrawingsandE&DCRswerereviewedatCHOC.3.Finding:CategoryI/seismicDPdrawingsareconsideredinsufficient(nohangerlocationstobuildingreferencelines;dimensionstooloose-scaledfromQ-in.model;specificationtolerancedoesnotallowinstallationdirectlyfromISOasis).b.TherearenumerousE&DCRsagainstdrawings,particularlyCategoryI/seismicelectricalconduit,arrangementdrawings.4.Evaluationofpotentialimpact,conclusions:a.CategoryI/seismicsmallboreeffortwillcontinuetolaguntilmoreworkablearrangementisestablishedtoprovidelocatingdimensionsortoallowflexibilitytoinstallasrequiredbyfieldconditions.b.ImprovedEngineeringchecking(EEdrawings)andmoretimelycompletion/processingofdesign.changeswillenhanceman-hoursandscheduleperformancebyConstruction.Iftherearenoim"provements,expectthesamelevelofprogresswhichcanonlyslowdownasemphasisshiftsfrombulkcommoditiestofinishingsystems.Originatedby~rSigne~I-Review/ConcurrencePc~'-//-cf3DateCongructionManagerC2/1217773/8/2RHSTONEa.'WEBSTER IIIIIII TaskNo.3Sheet2of2Nolocatingdimensions(tobuildingreferencelines)forhangers;e.g.,reactorbuildingDP-340BP,BQ,BR,INSTRAIRSECONDARYCON-TAINMENT.2.Holddownofvendorequipmentisspecifiedtobeinaccordancewithvendordrawings.Fieldconditionsoftenprecludeuseofvendordrawingwithoutsomerevision;e.g.,vendorcallsforfilletweldsizelargerthanava'ilableatedgeofembeddedsill(referenceMCCsel261,controlbuilding).3.Detailfordirectlyattachingconduittoembeddedstrutonwallsdoesnotallowconduit-to-wallclearanceforpullboxesorbaseplates(referencebatteryroom(2BYS<BAT2B),eastfaceof12-linewall,el261ft).4.Flexconduittobridgethebuildingshakespacebetweenclosed-bottomtrayswillnotfitthroughopening,el214ft,controlbuilding(referenceDrawingNos.EE-340AAand340AT.)5.Westendofsouthelectrictunnel,postsupportforconduitnotorientedtolandconduitsquarelyontubesteel.Reorientationre-quired(referenceESDCRNos.C14,083andC14,577andDrawingNo.EE-450A.)NOTE:ReactorbuildingDrawingNo.EE-460AG,Note4,nowallowsrotationofpostsupportstosuitfieldrequirementsinthereactorbuildingprimarycontainment.6.Southelectrictunnelatsouthwallofauxiliarybay--electricalsleevesfeedbankofverticaltrayswhichfeedbankofhorizontaltrays.Specificationrequirementofmaximum3ftofunsupportedcablemayneedrelaxationtoaccomplishcableinstallationthroughthisarea.ReferenceDrawingNo.EE-450A.7.8.Bearing-typedrilled-in-anchorscalledoutonBZ-108PWandPXissuedforconstructionpriortoissuanceofapprovedspecification/proce-dureforinstallation.IRequestsbyelectricalcontractortocutrebarforinstallationofdrilled-in-anchorshavecausedsomedelays.Inonecase,lengthydelayinresponseallowedfieldconditionstochange(newpipelinerunthrougharea),furthercomplicatingtheoriginalbaseplateandsupportinstallation(referencecontrolbuilding,12-linewall,el237ft).9.Tubesteeltotubesteelwraparoundweldscannotbemadeafterpipeerectionforpipesizes12in.andunder.10.EGDCRNo.C41,849againstDrawingNo.EE-420ECOND6SIMCSPRTS,CONTROLBUILDING,wasrequiredtoclearsupport2ft4in.sothatitwouldnotfallinbendradiusof4in.diameterconduitbeingsupported.C2/1217773/8/2RHSTONC&WESSTER IIIIIII