ML17261B088

Provides Update to Util 860616 Ltr Re Implementation of NUREG-0737,Item 6.2,Suppl 1, Emergency Response Capability.

ML17261B088
Person / Time
Site:	Ginna
Issue date:	07/13/1990
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	JOHNSON A R Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737 NUDOCS 9007170242
Download: ML17261B088 (61)

Text

AC(ELERATEDDISTRIBUTIONDEMONSTRATIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9007170242DOC.DATE:90/07/13NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterAUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas&ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONJOHNSON,A.R.ProjectDirectorateI-3

SUBJECT:

Providesupdatetoutil860616ltrreimplementationofNUREG-0737,Item6.2,Suppl1,"ERC."DISTRIBUTIONCODE:A003DCOPIESRECEIVED:LTRENCLSIZE:TITLE:OR/LicensingSubmittal:Suppl1toNUREG-0737(GeericLtrNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).DOCKETG0500024482-33)05000244RECIPIENTIDCODE/NAMEPD1-3LAJOHNSON,AINTERNAL:NRR/DLPQ/AHFB11~REGS-ILE=~OgPEXTERNAL:LPDRNSICPtl~nRCOPIESLTTRENCL111111111111RECIPIENTIDCODE/NAMEPD1-3PDOC/LFMBRES/DSIR/EIBNRCPDRCOPIESLTTRENCL77101111vi;ENOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISISFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR16ENCL15 nItt1'I0~~lljq sizizszzzzuzizLL4~Oaf~*SZtIIZuzzcimZZ"ROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.Y.14649.0001July13,1990TELEPHONEAREACODE7ld546-2700U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:AllenR.JohnsonProjectDirectorateI-3Washington,D.C.20555

Subject:

RegulatoryGuide1.97ConformanceEmergencyResponseCapabilityTACNo.51093R.E.GinnaNuclearPowerPlantDocketNo.50-244

DearMr.Johnson:

ThepurposeofthissubmittalistoprovideanupdatetoRG&E'sJune16,1986submittalconcerningRG&E'simplementationofNUREG-0737item6.2Supplement1,EmergencyResponseCapability,concerningReg.Guide1.97documentation.Itincludesbothanupdateofinformation,andaresponsetothenineissueslistedintheNRC'sFebruary20,1990correspondence.RochesterGasandElectrichaspreparedatechnicalresponseforeachoftheninetopicsandhasretainedthereportformatusedinourpreviouscorrespondence.AttachmentAprovidestheadditionalinformationpertainingtotheNRC'srequestsontheopenissues.AttachmentBprovidesacompletedtabulationmatrixconcerningRG&E'sReg.Guide1.97position.RG&Etechnicalresponsestotheidentifiedissuesprovidesdatatoresolvetheissuedirectlyformostopenitems.However,insomeidentifiedinstances,exceptionistakentothesubjectguidancetopicsbasedupontechnicaljustification.Themajorissueswhichinvolveexceptionstatementsincludeneutronfluxmonitoring,containmentisolati'onvalvepositionindication,radioactivityconcentrationorradiationlevelincirculatingprimarycoolant,andcontainmentsprayflowmonitoring.RG&Eisactivelypursuingtheneutronfluxtopicincooperationwithtwoothernuclearutilities(WestinghousePWRs)toreviewanddocumenttheuseofotherexistingqualifiedplantinstrumentationandemergencyoperationsproceduralapproachestoascertainandmaintainreactorsubcriticalitystatusduringharshcontainmentenvironmentcircumstances.~))iPLIgoalR~>><</9507i70242'9007isPDR4DOCK05000244PDCgy03Ij(

Z',(l(lH RG&Ewillsupportengineeringdiscussionsleadingtotheresolutionofanyopenissues.Verytrulyyours,RobertC.MecredyDivisionManagerNuclearProduction'KMK103Attachmentsxc:AllenR.Johnson(MailStop14D1)ProjectDirectorateI-3Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector ATTACHMENTAREGULATORY-GUIDE1.97REVIEWTheresponsesbelowareorderedtobeconsistentwiththeUSNRCcorrespondenceconcerningemergencyresponsecapabilities,datedFebruary20,1990.PreviouslyassignedparagraphnumberscontainedintheEGGGreport,"ConformancetoRegulatoryGuide1.97,R.E.GinnaNuclearPowerPlant",attachedtotheApril14,1986NRCletterhavebeenreferencedinthisAttachmentA.AttachmentBhasbeenorganized,expandedandannotated.13.1ADHERENCETOREGULATORYGUIDE1.97RGGEhaspreviouslyprovidedspecificcompletionandexceptionstatusforcompliancewithSection6.2ofNUREG-0737,Supplement1concerningemergencyresponsecapability.TheRGGElettersofFebruary28,1985andJune16,1986furnishedReg.Guide1.97equipmentqualificationstatusinformationdata.Completiondatesfornear-termfuturemodificationsareidentifiedlaterinthisresponse.CompletiondatesforRegulatoryGuide1.97modificationsnotpreviouslycommittedto,orforwhichagreementhasnotbeenreachedbetweenRG&EandtheNRC,willbeestablished,asnecessary,withtheNRCProjectManager.Table1ofRegulatoryGuide1.97specifiesthatCategory1and2itemsshouldbeenvironmentallyqualifiedtoRegulatoryGuide1..89andNUREG-0588.Subsequenttothattime,10CFR50.49requirementsinvolving"EnvironmentalQualificationofElectricalEquipment...",wasimplementedatGinnaStationwithaneffectivedateofNovember30,1985.This10CFR50.49regulationdefinestheevaluationprocessrequiredtoidentifypost-accidentmonitoringequipmentwhichshouldbeenvironmentallyqualified.Equipmentwhichperformscriticalsafetyfunctionsincludesthoseitemsofelectricalequipmentrequiredtoensure(i)theintegrityofthereactorcoolantpressureboundary,(ii)thecapabilitytoshutdownthereactorandmaintainitinasafeshutdowncondition,and(iii)thecapabilitytopreventormitigatetheconsequencesofaccidentsthatcouldresultinpotentialoffsiteexposurescomparabletothe'10CFR100guidelines.10CFR50.49alsospecifiesthatnonsafety-relatedequipmentwhichcouldcausefailureoftheaboveequipment,andcertainpost-accidentmonitoringequipment,shouldbeenvironmentallyqualified.RGGEconsidersthat10CFR50.49istheappropriatevehiclefordefiningthescopeofinstrumentationwhichmeetsthesethreecategories.EnvironmentalqualificationprogramdeterminationsareprovidedinRGGE's10CFR50.49compliancedocumentation,ratherthaninthesubmittalsassociatedwithNUREG-0737andRegulatoryGuide1.97.RGGEhasreviewedtheGinnaStationEmergencyOperatingProceduresandUFSARChapter15concerningplantdesignbasisevents-todeterminewhichinstrumentationisusedtoprovideinformationtotheoperatorwhichmayaffect hisacns.Anyinstalledinstrntationrequiredtoperformasafety-relatedfunctionandthatisrequiredtooperateduringandfollowinganaccidentresultinginaharshenvironment,hasbeenincludedinthescopeofRG&E10CFR50.49EnvironmentalQualificationProgram.Instrumentationnotmeetingthiscriteria,althoughdesignatedinRegulatoryGuide1.97Table3torequireenvironmentalqualification(byvirtueofbeingclassifiedasCategory2)maynotbesodesignatedforRG&E's10CFR50.49program.TherationaleforRegulatoryGuide1.97Category2instrumentationassignmentsisexplicitlyprovidedinSection3.3ofthisAttachmentandintheAttachmentBtables.

'23.2TYPEA-VARIABLESRG&EhascompleteditsreviewofTypeAvariables,and.includedtheminthemodified."USNRCReg.Guide1.97Revision3ComparisonTable"(AttachmentB).AlltypeAvariablesareconsideredCategory1,unlessspecificexceptionsaretaken.Thesodiumhydroxidetanklevelinstrumentationwas,evaluatedwithregardtoEmergencyOperatingProceduresanduseoftheContainmentSpraySystemduringharshenvironmentconditions.RG&Ehasconcludedthatthesodiumhydroxide(NaOH)leveltransmittersdonotrequireupgradingtoaCategory1TypeAvariablebasedonSafetyEvaluationNSL0000009October25,1989,whichprovidedanevaluationofspraychemistryrequirements,possibleborondilutionphenomena,andsumppHrequirementsduringpostulatedsumprecirculationmodes.TheEmergencyOperatingProcedures(EOPs)donotrequireanyoperatorattentionorresponserelatedtoNaOHtanklevelconditionsintherevisedproceduraldocumentsissuedJuly21,1989,(thesewerereviewedbytheNRCEOP~inspection(89-80)withnoopenissuesidentified).ThisevaluationresponsecompletestheJune16,1986letter(Topic3.2)commitmenttodetermineifNaOHtankleveltransmittersshouldbereplacedwith10CFR50.49qualifiedtransmitters.BasedonrecentRG&Ereview,additionalinstrumentationwillbecategorizedasTypeAmeasurementvariables.TheseincludetworedundantsetsofSteamGeneratorwiderangeleveltransmitters.ThefuturetransmitterinstallationswillbecomeoperationalwhenthenewAdvancedDigitalFeedwaterControlSystem(ADFCS)isoperational(1991tentativeschedule).TheseinstrumentswillmeetCategory1requirements.RG&EisplanningtoupgradetheContainmentTemperatureMonitorstoCategory2.RG&EplanstoprovideoneadditionalCategory1ResidualHeatRemovalSystemFlowTransmittertoprovideredundancyforFT-626.

0II' NeutronFluxDetectionExistingRG&EexcoreNuclearInstrumentSystem(NIS)neutronfluxdetectionequipmentthatmonitorssourcerange(SRM),intermediaterange(IRM)andpowerrange(PRM)reactorfluxconditions,isWestinghousefurnishedoriginalplantelectricalequipmentwhosespecificationspredatetheEmergencyResponseCapabilityregulatoryactivities.RegulatoryGuide1.97Table3guidancenotestheneutronfluxdetectionequipmentasTypeBmeasurementvariableswithCategory1attributes.RG&EreviewofneutronfluxmonitorfunctionspresentsnoreasonsforthesedevicestobeCategory1atGinnaStation,andintendstotakeexceptiontotheRegulatoryGuide1.97guidancesincetheexistingCategory3equipmentissuitabletoperformallitsnecessaryfunctions.RG&EhasreviewedtheGinnaStationUFSARChapter15accidentanalyses,aswellastheEmergencyOperatingProcedures(EOPs),todeterminetherequirementsforuseoftheNISPRM,SRM,and/orIRMinstrumentationduringenvironmentallyharshdesignbasisaccidentscenarios.NoautomaticormanualoperatoractionsrequiredforaccidentmitigationaredescribedforanyChapter15eventswhichrequireexcoreNISoperationduringoraftertheonsetofa"harsh"environmentper10CFR50.49.TheGinnaStationEOPseriesE(Emergency),ES(EmergencySupplement),andECA(EmergencyContingencyAction)donottakecreditforthesource,intermediate'rpowerrangeneutron,fluxmonitorstopeiformanyrequiredsafetyfunctions,andarethusnotconsideredaTypeAvariable.TheseinstrumentsdonotmeetRG&E'scriteriaforinclusioninour10CFR50.49EquipmentQualificationProgram.RG&E'sFR(FunctionalRestoration)procedures,aswellastheCriticalSafetyFunctionStatusTree(CSFSTRedPath)doutilizetheexcoreNISdisplaysasanindicationofreactivityconditions.TheFR'andECAproceduresarebeyonddesignbasisevents,whereallpotentiallyavailableequipmentisusedtomitigateeventsandsetsofeventsbeyondthelicensedcapabilityofGinnaStation(e.g.,dualsteamlinebreaks,SteamGeneratorTubeRupturewithSteamLineBreak,etc.).ItisnotRG&E'sintenttoreplaceequipmentconsideredpotentiallyusefulforbeyond-design-basis-eventsituations,unlessthisisconsideredwarrantedasapartofRG&E'sSevereAccidentManagementstrategy.TheSevereAccidentManagementstrategywillbedevelopedwithinthecontextofourcurrentProbabilisticRiskAssessment/IndividualPlantExamination(PRA/IPE)process.TheexcoreNISisalsousedinattachmentstotheEmergencyProceduresastheRedPathCSFSTF-01reactorsubcriticalitydeterminationdevices.Nodiscrete actiontherthanreactivitymoni'ngareaccomplishedbytheinstruments.Theunderlyingaccidentscenariosalreadymakeuseofallpotentialsourcesofreactivitycontrol(dropcontrolrods,injectboricacid)andnoactionswithintheGinnaStationdesignbasisarenecessary,formorereactivitycontrolthanalreadyprovidedbyautomaticallyactuatedsystems.'gain,thecommentsaboveregardingSevereAccidentManagementapply.RG&EdoesagreethatsomepotentialoperatorconfusioncouldariseovertheuseoftheCSFSTRedPath,iftheSRMsfailedhigh-scaleduetotheharshenvironment.Althoughautomaticsafetysystems'wouldmaintainallrequiredsafetyfunctions,operatorconcerncouldarise.RG&EthereforeproposestomodifytheCSFSTRedPath,tomakeuseofinstrumentationwhichisalreadyClass1EandincorporatedintoRG&E's10CFR50.49EquipmentQualifica-tionProgramtoprovideabetterindicationofbeyonddesignbasisconditionsthantheexcoreNIS.Thisrequirestheuseofthecoreexitthermocouples(CETs),incombinationwiththeReactorVesselLevelIndicatingSystem(RVLIS).ThiswouldbesupplementedwithadditionalBoronanalysisrequirementsbyuseofthePostAccidentSamplingSystem(PASS)todetermineshutdownmargin.EOPinstructionspresentlyrequireOperatorstoobserveCoreExitThermocouples(CETs).Becauseofthemultiplicity(39)andthereactorlocationsoftheCETsOperatorsmay(inasituationclearlybeyondthelicensingrequirements'forGinnaStation)locatecorehotspotswhich.could.beindicativeofadded:heatflux.due,forexample,toalossofsubcriticalityataspecificlocation(s)inthereactorcore.SuchoperatorCETobservationsafteremergencyreactorshutdownwouldresultinprocedurallyrequiredboratedwateradditionstoaddnegativereactivitythusassuringshutdownmargin(SDM)adequacyaswellasassuringcorecooling.Duringdesignbasisaccidents,whilecoreconditionsarebeingevaluatedandwhileSafetyInjectionPump(s)arebeingoperated,theCETtemperaturedisplayswillbeconsultedbytheoperatorstodeterminetheintervalperiodswhenSIpumpsmaybeturnedoffbaseduponstablecoretemperatureindications.TheEOPsrequireSDMdeterminationswhichinvolvePASSBoronanalysistechniques.ExcessBoronconcentrationabovetheconservativeminimumrequirement(inppm)providestheobjectivemeasurementbasisthatthecoreisshutdownandremainssubcritical.TheRG&EGinnaTech.Specs.requireaminimumoffouractiveCETsperreactorcorequadrantduringplantoperations.

ThepdingexcoreNISdiscusslinkedwithothercorecriticality/SDMmeasurementtechniquesisbeingfurtherinvestigatedbyRGGEandtwootherWestinghousePWRnuclearutilities.AssessmentoftheuseofCETsandRVLISasalternativemeasurementmeans,andEOPproceduralupgrades,areunderway.

~.~ContainmentIsolationValvePosition=IndicationAdetailedRG&EreviewoftheUFSARChapter6(EngineeredSafetyFeatures;Subsection6.2ContainmentSystems)disclosesthatthecontainmentmechanicalboundariesareprotectedbypipingandvalveconfigurationdesignswhichprovidedefense-in-depth.Systemdesignconsiderationsincluderedundancyprovisions(valvingorclosedISTandAppendixJpipingsystems),functionaloperabilitytesting,andseismicandmissileprotection.InRG&E'scorrespondencewiththeNRCrelativetoEnvironmentalQualificationandUSNRCIEBulletin78-04,ithasbeennotedthatfailureofanyexternallymountedvalvepositionindicationswitchwouldhavenoadverseeffectontheisolationcapabilityofanycontainmentvalvebasedonthecontrolcircuitdesign.Thevalvestempositionswitchesmountedonairoperatedvalvesareutilizedonlyforindicationpurposesandarenotincorporatedinanycontrollogicschemes.MotorOperatedValves(MOVs)haveintegrallimit/torqueswitchcompartmentsadjacenttothemotorandgearingattachedtotheprocessvalve.Thevalveopenorclosecycleisoperatedfromaremotelocationandreliesuponcontrolcommandswhileprovidingvalvepositionindicationattheplantoperatorscontrollocation.Themotoroperatedvalvesdorequirewiringintraconnectionswithintheintegralswitchcompartmenttorqueandpositionsensingdevices.Thecontrollogiccross-connectedwiringwithintheLimitorquecompartmenthasbeenreplacedwithenvironmentallyqualifiedconductors.duringspecificsurveillanceandvalverefurbishmentandupgradeeffortsassociatedwiththeMOVATSprogram.MOVATStestingandsurveillanceprogrammaticmaintenanceisscheduledformotoroperatedvalveswhetherornottheyareincludedinthe10CFR50.49environmentalqualificationprogram(safety-relatedandinaharshenvironment),orifthevalvehasbeenidentifiedasbeinglocatedinamildenvironment,ornotrequiredtooperateduringaDBA.IJMotorOperatedValvesatContainmentIsolationboundaries(andotherMOVlocations)identifiedinthePlantTechnicalSpecificationsTable3.6-1provideclosed/not-closedindicatorlightdisplaysinthecontrolroom.TheMOVATstestingandvalvereworkeffortsassurethatthevalvesfunctioncorrectly,andthatlimitswitchoperateddisplaysarecorrect.ContainmentIsolationMOVsremaininacommittedlongtermsurveillanceprogram.RegulatoryGuide1.97Table3,TypeBvariables,notesthataCategory1assignmentexistsforContainmentIsolationValvepositionindication(closed/not-closed).RochesterGasandElectricrequeststhatanexemptionbegranted.fromguidanceonenvironmental'qualificationtopicsassociatedwiththeindividualvalvepositionswitcheslocatedinpotentiallyharshlocations.RG&E hasve+ied(asdocumentedinSEIepicVI-4)that,inaccordancewiththelicensingrequirementsforGinnaStation,propercontainmentisolationwilloccurevenassumingaworst-casesinglefailure.EmergencyOperatingProceduresdonotrequireOperationspersonneltotakeanyimmediateactionsbasedsolelyontheopenorclosedvalvepositionindicationduringadesignbasisaccident.AlthoughEOPsdospecifythattheoperatorverifycontainmentisolationvalveposition,failureofpositionindicationwillnotcauselossofanysafetyfunction,orincorrectandunsafeoperatoractions.IntheEOPs,ifavalveindicatesopen(whetheropenorclosed)theoperatorisdirectedtoclosethevalve.Failure.ofthevalvepositionindicationdoesnotpreventmotionofthevalveitself.Itisnotexpectedthattheoperatorwouldmanuallyattempttopositionavalvelocatedina"harsh"environment.Ifavalveindicatesclosed(whetheritisopenorclosed)theoperatorwillnotattempttomanipulatethevalve(andcertainly,nottoopenit).Thus,adequatecontainmentisolationisensuredbythedefense-in-depthprovisionbuiltintothesystem,ratherthanbyvalvepositionindication.Therefore,RGGEhaschosennottodesignatevalvepositionindicationforcontainmentisolationvalvesasaTypeA,Category1variable.

PressurizerHeaterStatus(ElectricCurrentIndication)Pressurizer(PZR)heaterelectriccurrentdrawstatusisaRegulatoryGuide1.97Category2,TypeDvariable.AtGinnatherearetwodiversePZRheatergroupsoperated.fromthemaincontrolroombenchboardlocation.Ahandswitchandilluminatedstatuslightsareprovidedforeachofthetwoheatergroups.ThePlantOperationsGrouppresentlyreliesuponandobserveseithertheBus14kilowatt(KW)powerdrawmeterreadoutsortheBus16~kilowatt(KW)meterreadoutsinthecontrolroomtodeterminethateitherofthePZRheaterbanksaredrawingpowerwhenevercontrolbankhandswitchorbackupbankhandswitchisoperated.Anelectricalloadaslargeaseither400KWPZRheaterbankisreadilyquantifiedandobservedwheneverthebankison(oroff).Ifthe400KWbackupbankisrequiredtobeon,theincrementalloadincreaseisnotedontheBusKWmeter.OperatordecisionsconcerningemergencydieselgeneratorloadingconditionsmaybemadeuponKW,displayinformation.ThecontrolbankheatergroupprovidesmodulatingproportionalheatercontrolfromitsSiliconControlledRectifier(SCR)controlcabinetintheAuxiliaryBuilding.TheSCRpanelattheintermediatelevel(East)isinternallyequippedwithcurrenttransformers(CTs)andprovideslocalpanelammetermonitoringeachofthreeincoming480VoltBus14phaselines.RG&EhasevaluatedtheCategory2,TypeDRegulatoryGuide1.97recommendationtomonitorelectriccurrentdraw.Thecontrolbankequippedwithdiverseammeters'ndicationsattheremotepanellocation,plusacontrolroomstatuslightdisplaywithitsassociatedhandswitchanditsanalogcontrolleronthebenchboardisjudgedtobeincompliancewiththeintentoftheGuide.'heBus14KWmeterisalsoavailableinthecontrolroomtoindicatepowerdrawconditionsimposedbythecontrolbankofPZRheaters.Sincetheseheatercontrolsandmotorcontrolcenterarelocatedinenvironmentallymildplantlocations,theyarenotincludedinGinna's10CFR50.49program.Thesecondheatergroupisidentifiedasthebackupheaterbankwhichdrawsitspowerfrom480VoltBus16andperformsasanon/offgroup.Thisbackupbankcanbehandswitchoperatedfromthecontrolroomoraremoteshutdownpanellocation.NolocalCTsorammetersareprovidedforthebackupheatercircuitry.Thebackupheaterbankequippedwithacontrolroomstatuslightdisplaywithitsbenchboardhandswitch,plustheremotelocationhandswitchanditsstatuslightdisplay,workinginconjunctionwiththeBus16KWmeteringMCRdisplayisjudgedtoalsobeincompliancewiththeintentofRegulatoryGuide1.97.TheCategory 2conlsandmotorcontrolcerarelocatedinenvironmentallymildlocationssotheequipmentisnotincludedinGinna's10CFR50.49Program.Thekeymeasurementvariableswhichmonitorthepressure/temperatureeffectproducedbythepressurizerheaterbankactuation(s)arethepressurizerandRCSpressuretransmitterswhichmonitorprimarycoolantpressure,andthepressurizerleveltransmitterswhichmonitorwaterlevel.TheseenvironmentallyqualifiedCategory1,TypeAtransmittersareincorporatedintothe10CFR50.49program.10 PressurizerRelief(ench)Tank(PRT)TemeratureThequenchtanktemperatureismonitoredbytheTE-439loopandispresentlyscaledtoindicate0to300FTheRegulatoryGuide1.97recommendationnotesatemperaturerangeof50to750F.Thephysicalconfigurationofthetankincludesarupturediskwitha100psigsetpoint.Forsaturatedsteamconditions,thecorrespondingmaximumtemperatureexpectedwithinthetankwouldbe338F.Therupturediskisdesigned.toburstopenifPressurizerSafetyValvesorPowerOperatedReliefValves(PSVorPORV)dischargefluids>100psigintothequenchtank.PORVandblockvalvepositionstatusandpressurizersafetyvalvepositionindicationsareavailableonthecontrolroompanelboardtodetectwhetherRCSfluidsareestablishingaflowpathtothePRT.Theseareenvironmentallyqualifiedpositionsensinginstrumentationdevicesprovidedtodetectsafetyorreliefactuations.RG&EhasevaluatedthePRTtankparametersandconsequentlyproposestorescaletheTE-439looptotherecommended50to400Frangewhichconservativelyenvelopsthepostulated,338setpoint.RG&EhasinitiatedanEngineeringWorkRequesttocompletethisinstrumentrescalingeffort.11

~~.SteamGeneratorWideRaneLevelTransmitterGinnaStationispresentlyequippedwithonewiderangelevelplusthreen'arrowrangeleveltransmittersforeachsteamgenerator.Thewiderangetransmittersmonitorsteamgeneratorlevelfromtubesheettoseparators(0"to520"H0),andprovidedatatotheSafetyAssessmentSystem(SAS)computerandtoapermanentrecorder/displayonthe'aincontrolpanel.ExistingGinnaEmergencyOperatingProcedures(EOPs)donotrequireanyOperatoractionordecisionsduringdesignbasisaccidentsinvolvingcontainmentharshatmosphereconditions,basedonSGwiderangelevelinstrumentation.ExistingwiderangeleveltransmittersLT-460andLT-470~havebeenregardedtobeasCategory2,TypeDmeasurementvariables.ThisdecisiontobaseEOPOperatoractionson-otherleveltransmitterdisplaysresultsfromoriginalWestinghousedesignphilosophywhichinvolvesqualifiedCategory1,TypeAnarrowrangesteamgeneratorleveltransmitterswhichprovideClass1Econtrolanddisplayfunctions.Thesteamgeneratornarrowrangeleveltransmittersinteractwithreactorprotectionandcontrolsystems,providemaincontrolboardlevelindicationandprovidedatatotheSAS.RochesterGasandElectricplanstoreplacetheexistinganalogfeedwatercontrolsyst'mwithanAdvancedDigitalFeedwaterControlSystem(ADFCS)currently'scheduledforinstallationduringthe1991RefuelingOutage.Environmentallyqualifiedsteamgeneratorwiderangeleveltransmittersconformingwith10CFR50.49andtheguidancelanguagestatedinRegulatoryGuide1.97willbeinstalledatthattime.Tworedundanttransmittersmonitoringlevelbetweentubesheetuptoseparatorswillbefurnishedforeachsteamgenerator.ThewiderangetransmitterswillbetreatedasCategory1,TypeAequipmentuponcompletionofthatmodification.WhenredundantwiderangelevelforeachSGisincorporatedonaTypeAvariable,thefullyqualified,redundantClass1Etransmitters,LT-461,LT-462,LT-463<>andLT-471,LT-472,LT-473<~>willbeconsideredfordeletionasaTypeAvariable.Nochangesinformorfunctionforthesesixleveltransmitterswillbeundertaken.12 8~~3.3.14ContainmentSraFlow(ProvidingaFlowIndicationCapability)TherearenoContainmentSpray(CS)flowindicationsortransmittersprovidedforthetwoCSpumps'.TherearenorequiredOperatoractionsordecisionsbaseduponCSpumpflowparametersdictatedbytheEmergencyOperating-Procedures.CSpumpoperatingstatusduringnormalplantoperationsorfollowingasafetyinjectionsignalcanbedeterminedfromthemaincontrolboardswitchpositionandilluminateddisplays.ThecontainmentspraypumpingsystemcomponentsandClass1Eelectricalsystemsaresinglefailureproof.TheEmergencyOperatingProceduresrequirementsmakenomentionofCSflowratemeasurements.CSpumpoperationisdependentuponenvironmentallyqualifiedcontainmentpressuretransmittersignalswhichprovidecontainmentisolationsignalsandpumpactuationcommandsifadversecontainmentconditionsabovesetpointaredetected.ContainmentpressureistheselectedCategory1,TypeAmeasurementvariabletodeterminethecontainmentspraypumpoperationandcontainmentenvironmentspressurereductioneffectiveness.EOPsrequiretheOperatortomakedecisions'aseduponContainmentpressuretomaintainpumping,restartpump(s)aftersumprecirculationswitchoverortosecurepumpoperationsduringdesignbasisaccidentconditions.Althoughthereisnorequirementtodoso,indirectdeterminationsofContainmentsprayflowratecanbecalculatedafterthecontainmentspraysystempumpsuctionswitchoverfromtheRefuelingWaterStorageTank(RWST)tothecontainmentsumprecirculationwatersourcehasbeeninitiated.ThedeterminationmaybemadefromCategory1,TypeAflowrateinstrumentationwhichismonitoringtheResidualHeatRemoval(RHR)recirculationpumpingoperation(FT-626).AportionoftheavailableRHRflow(monitoredbyCategory1,TypeAtransmittersFT-931A,FT-931B)issplitbetweenthecontainmentspraypumps(noflowmetering)andtheSafetyInjection(SI)pumps(monitoredbyCategory1,TypeAtransmittersFT-924,FT-925).Thesubtracteddifference~inflowratesplitbetweentheRHRandtheSIpumpsisthenetflowdirectedtotheCSpumps.SufficientindirectCSflowrateinformationis,thereforeavailabletotheOperationsstaffifthedataisrequested.ThereisnoEOPrequirementtomonitorSodiumHydroxidetanklevelduringaDBAwhichinvolvesacontainmentspraypumpingoccurrence(seeTopic2).NOTE1:[FT-931A+FT-931B]-[FT-924+FT-925]ContainmentSprayPump(s)Flowingallonsperminute13 0JI 0ComonentCoolinWatertoEnineeredSafeardsFeatures(FlowMeasurement)RG&EprovidesredundantsinglefailureproofComponentCoolingWater(CCW)pumps.CCWpumpon-auto-offcontrolandilluminatedstatusindicationisprovidedonthemaincontrolboard.Category2,TypeDpumppressurecontrolandalarmaswellasCCWsurgetanklevelcontrolroomalarmandmonitoringinstrumentsareinstalledtomonitorsystemoperation.CCWsystemflowandtemperaturearelocallymonitoredandarealarmedinthemaincontrolroom.TheCCWinstrumentationislocatedinenvironmentallymildlocationsintheAuxiliaryBuilding.TheCCWCategory2,TypeDmeasurementinstrumentationhasnotbeenincludedintheGinnaEQprogramforthatreason.Localrotameterindicatingswitchflowinstrumentationtobearingand/orpumpsealcoolers(withmaincontrolroomflowalarmprovisions)islocatedneareachofthecombinedCCWdischargeoutletsfromthetwoRHR,thetwoCSandthethreeSlEmergencySafetyFeatures(ESF)pumps.ThelocalrotameterindicatingswitchesfacilitatesystemcoolantflowrateadjustmentsforadministrativelycontrolledCCWtoESFpumps.Thus,substantialprocessinformationexiststomonitorandverifyoperabilityoftheprealignedandadjustedCCWsystem.TheCCWsystemisadministrativelycontrolledandprocessflowdestinationsprocedurallyalignedduringallplantoperatingconditionstoprovidecoolingwaterflowtotheESFpumps.TheEmergencyOperatingProceduresdonotrequireprocessvalvemanipulations,instrumentrealignmentsorsystemmonitoringduringadesignbasisaccident.ThecombinationoftheCCWsystemsinglefailureproofdesignandadministrativecontrolovercoolingsyst:emvalvingalignmentsensurethat,evenassumingaworst-casesinglefailure,nolossofrequiredsafetyfunctioncanoccurtomorethanonetrain.Therefore,RG&EconsidersthattheexistingCategory2,TypeDinstrumentationpresentlyinstalledintheprocessareaandcontrolroomthatprovidesindicationoralarminstrumentationtobejustifiedasitispresentlyconfigured.14 ATTACHMENTBUSNRCREGULATORYGUIDE1.97,REVISION3INSTRUMENTATIONCOMPARISONTABLEWITHNOTE/SECTIONRochesterGasandElectricCorporationR.E.GinnaNuclearPowerPlantDocketNo.50-244ISSUE:DATESOriginalFebruary25,1985SecondThirdJune16,1986July12,1990 C,

ROCHESTERGASANDELECTRICCORPORATIONUSNRCREGULATORyGUIDE1.97REVISION3COMPARISONTABLENOTE1SIAPj:RYURECARDAlsoAvailableOnApertureCardPage1of19.REACTIVITYCONTROLNeutronFluxControlRodPositionRCSSolubleBoronConcentrationRCSColdLegWaterTemperatuze(TypeA)CORECOOLXNGRCSHotLegWaterTemperature(TypeA)RCSPressuze(TypeA)RCSPressurizerPressure(TypeA)CoreExitTemperature(TypeA)10'o100%powerFullInozNotFullIn0-6000ppm50700oF50700oF0-3000psigPlant-Specific2002300oF1(Source,IntermediateandPowerRangeAreNotEnvironmentallyQualifiedtoCategory1~1.0E-lto1.0E06cps/n/cm'RM~1.0E-11to1.0E-3Amps/n/cmo/secIRM~1.7E-6to4.25Amps/sectionPRM(MicroprocessorMRPIRodPositionIndicator)SystemReplacedOriginalPlantEquipment.Category3MRPIDigitalSystemwasPlacedIn-ServiceDuring1987AvailableonPASSBoronAnalyzer(Range:50150to6000~300ppm)TE-409B-1andTE-410B-1(oneperloop)(Range:0-700'F)[EQProgram]TE-409A-1andTE-410A-1(onepezloop)(Range:0-700'F)[EQProgram)PT-420A,PT-420(Range:0-3000psig)[EQProgram)PT-429,PT-430,PT-431,PT-449(Range:1700to2500psig)[EQProgram)IncoreCoreExitThezmocouples[CET)withConnectors(Range:0to2300'F)[EQProgram)15171819SeeAttachmentAItem3.3.1PWROwnersGroupFormulatedtoEvaluatePlantEquipmentN/AFormerItem3.3.2N/AN/AN/AN/AFormerItem3.3.3andRegulatoryGuide1.97Rev.3Table3,Note3yoo7]7o~<>~I IIlL tPage2of1RCoolantInventoryLevelinReactor(TypeA)DegreesofSubcooling(TypeA)BottomofHotLegtoTopofVessel200'FSubcoolingto35'FSuperheat2ReactorVesselLevelIndicatingSystem(RVLIS)CalculationsInvolveCombinationsofDifferentialPressure(Flow,Level)plusCETandRCSLoopTemperatureTransmitterSignalsthatMonitorBottomofVesseltoTopofVessel[EQProgram]EOPRequirementUtilizesCategory1CoreExitThermocouplesandRCSPressureInstrumentationDisplaysLinkedwithaSubcooled/SuperheatNomogramtoAscertainWideRangePrimaryCoolantFluidConditionsGreaterThan200'FSubcooledThrough35'FSuperheat[EQProgram)-16N/A19FormerItem3.3.3HotLegRTDPlusRCSPressureAnalogSignalComputationProducesRedundant0to100FSubcooledCategory1DataandDiverseInformationDisplays[EQProgram)5CoreExitThermocouplesPlusRCSPressure;DiverseIsolatedAnalog/DigitalDatainthePlantProcessComputerSystemGenerates>200'FSubcooledThrough>35'FSuperheatDemandDisplayDataforSafetyAssessment[Category3)SystemDisplays1819MAINTAININGREACTORCOOLANTSYSTEMZNTEGRZTYContainmentSump:WideRangeWaterLevel(TypeA)ContainmentSump:NarrowRangeWaterLevelPLant-SpecificPlant-Specific2SumpB:LC-942(A-E)andLC-943(A-E)Indicationof8,78,113,180,214inches(214inches~500,000gallonswhichwaspreviouslyacceptedbyNRC)(EQProgram)SumpA:LT-2039andLT-2044(Range:0-30ftH,O)N/A233N/Apco7/popO>-PWAPERTURECARDA]50Ava)fableOr)ApertureCard frrI(

IP'IC4I Page4of11-EffluentRadioactivity-NobleGasFromCondenserAirRemovalSystemExhaust10'o10pCi/ccElectronicMicroprocessorGasRadiationProcessUnit(EberlineSPINGunits)(Ranges:NOBLEGAS10~pCi/ccto1.0EOSpCi/cc;MonitorR-15Xe133Equiv.8600SCFMCondenser'irEffectorExhaustmixedwithGlandSealSteam314N/ACONTAINMENTContainmentHydrogenConcentration(TypeA)ContainmentEffluentRadioactivity:MonitorR-12NobleGasesatReleasePoints:~ContainmentPurgeVentExhaust~PlantBuildingExhaustVent~VentfromS/GSafetyReliefandAtmosphericDumpValvesEffluentRadioactivity-MonitorR-11ParticulatesandHalogensSamplingwithOnsiteAnalysisCapability:aContainmentPurgeVentExhaust0-10%10~to10~pCi/cc10~to103pCi/cc10ito10~pCi/cc103to10'Ci/ccRedundantCategory1COMSIPContainmentH,Monitors0to10%Concentration[EQProgram);ATrain,BTrainSPINGElectronicMicroprocessorAirParticulateandRadioactiveGasProcessMonitorsWithanActiveRangeof1.0EOthrough1.0E07cpm(countsperminuteorasindicatedbelow>:1.0E-Ski/ccto1.0EOSpCi/ccRangeXe133Equiv.811,000SCFM1.0E-Ski/ccto1.0EOSpCi/ccRangeXe133Equiv.876,000SCFM1.0E-1)LCi/ccto1.0E03Ci/ccRangewithtimecompensationcalculationSPINGElectronicMicroprocessorAirParticulateandRadioactiveGasProcessor-MonitorswithanActiveRangeof1.0EOthrough1.0E07cpm(countsperminute)Halogens>1.0E-5to10pCiRangeParticulates1.0E-6to1.0pCiRange811,000SCFMasCs137314314314314N/AN/AN/AN/AN/A~AuxiliaryBuildingVentExhaust10~to10'Ci/cc3Halogens>5.0E-5to50pCiRangeParticulates2.5E-5to25)ICiRange876,000SCFMasCs1373N/A14NSIAPERTUREWoD7~7D>>eCAR9AlsoAvailableOnApertureCard IlII Page5of19..RESIDUALHEATORDECAYHEATREMOVALRHRSystemFlow(LPI)(TypeA)RHRHeatExchangerOutletTemperatureSAFETYIMECTIONSYSTEMSAccumulatorTankLevelAccumulatorTankPressureAccumulatorIsolationValvePositionSafetyInjection(SI)Flow(HPI)(TypeA)BoricAcidChargingPumpFlowRefuelingWaterStorageTank(RWST)Level(TypeA)PRIMARYCOOLANTSYSTEMReactorCoolantPumpStatus0-110%Design40-350oF10-90%Volume0-750psigClosedorOpen0-110%Design0-110%DesignToptoBottomElectricCurrent22FT-626(Range:0-4000gpm)FT-931A,FT-931B(0-2200gpm)(EQProgram)TE-627toComputer(Range:50to400F)AccumulatorSITank(s)NarrowLevelRangeInstrumentsIndicate~7InchesfromAdministrativelyControlledNominalSetpointIT934LT938LT935LT939AccumulatorSITank(s)(Range:0-800psigPressure)PT936PT940PT937PT941MOV-841andMOV-865(Limitorque)PositionIndicatedonMCBFT-924andFT-925(Range:0-1000gpm)[EQProgram)FT-128(Range:0-75gpm)LT-920andLT-921(Range:0-1000"H~O,~0to100%)MainControlRoomAmmeterson4KVBus(0-1200A)AlongwithHandswitchesandStatusIightsonControlRoomPanelboards252212231331FormerItem3.3.10FormerItem3.3.7FormerItem3.3.8FormerItem3.3.8FormerItem3.3.4.FormerItem3.3.9N/AN/ASIO'Oc7/7ogyp.'0+APERTURECARDAlsoAvailaMeOnApertureCard Efl biAPERTURECARDAlsoAvailableonPage6of19-primarySystemSafetyReliefValvePositions(PORVsClosed/NotClosedandCodeSafeties)(TypeA)ClasslEValvePositionMonitors:~ThePressurizerSafetyReliefsareEquippedwithLVDTAnalogValveStemMotion/PositionDetectors.[EQProgram]ZT-434andZT-435~ThePORVsareEquippedwithSnapActionPositionSwitches[EQProgram)ZS-430andZS-431CSeeAttachmentAItem3.3.12N/AN/APressurizerLevel(TypeA)PressurizerHeaterPressurizerRelief(Quench)Tank.LevelPressurizerRelief(Quench)TankTemperaturePressurizerRelief(Quench)TankPressureSECONDARYSYSTEMSTEAMG)2KRATORS/GLevel(TypeAProposed)S/GLevel(TypeA)BottomtoTopElectricCurrentToptoBottom0750oF0toDesignPressureTubesheettoSeparatorsWideRangeLevelNarrowRange:0-100%23'ILT-426,LT-427,LT-428(Range:202"to100"H~O)[EQProgram]MainControlRoomHandswitchControlsforEachControlorBackupBankBreakerw/StatusLightDisplay;MCCSupplyVoltageandMCCBusKWDemandMetersforControlorBackupGroupsExistinControlRoomLT-442(0-100%)(Range:0to84"H,O~0to100%)TE-439(ExistingRange:0-300'F)PT-440(Range:0-150psig)(TankRuptureDiscSetpoint5100psig)WideRangeLT-460andLT-470(Range:0-520"H~O)[EQProgram)LT-461,LT-462,LT-463LT-471'T-472'T-473(Range:138"to33.6"H,O)[EQProgram]N/A10SeeAttachmentAItem3.3.11N/ASeeAttachmentAItem3.3.12ScaleChangePl'armed:50to400oFN/ASeeAttachmentAItem3.3.13SeeAttachmentAItem3.3.13S/GPressure(TypeA)PromAtmosphericPressureto20%AboveLowestSafetyValveSettingPT-468,PT-469,PT-478,PT-479PT-482,PT-483(Range:0-1400psig)[EQProgram]N/AgoopaPYP-dC III SIAPERYURZCARK)Page7of19-11cnAve(lnhlnA~MainSteamFlow(TypeA)ORSafety/ReliefValvePositionPlowRange0-110%MainSteamFlowFT-464,FT-465,N/AFT-474,FT-475(Range:0-3.8x10'ph)[EQProgram]MainFeedwaterFlowAUXILIARYFEEDWATEROREMERGENCYFEEDWATERSYSTEMAuxiliaryFeedwaterFlow(TypeA)StandbyAuxiliaryFeedwaterPlow(TypeA)CondensateStorageTanks(TypeA)CONTAINMENTCOOLINGSYSTEMSContainmentSprayFlow0-110%DesignFlow0-110%DesignFlowPlant-SpecificPlant-Specific0-100%DesignPlow32PT-466,FT-467,FT-476,FT-477(Range:0-3.8x10'ph)FT-2001,FT-2013;FT-2002,FT-2014(Range:0to275gpm)MDAFW,orFT-2015,FT-2006,FT-2007(Range:0to500gpm)TDAFWFT-4084,FT-4085(Range:0to250gpm)SBAFWCSTSeismicallyQualifiedTransmittersLT-2022AandLT-2022B(Range:0-24ft.)ContainmentSprayFlowDeterminationsareIndirectlyAvailable.EQQualifiedSIandRHRFlowSensorIndicationsareAvailable.CSPlowratecanbeCalculatedfromIndicatedSIandRHRFlowrateDifferenceWheninRecirculationModefromContainmentSumpB(EQProgramTransmitters]SIandRHRFlowRateDifferenceN/A6N/A6N/A5N/ASeeAttachmentAItem3.3.14CVFanHeatRemovalPlant-Specific2CVPan1A,1B,1C,1DOn/OffStatusLightsand7HandswitchesatMCB8N/ACVAtmosphereTemperature40400oFSixof24RTDsareR.G.1.97objects.ExistingRTDsareRecordedandIndicatedattheContainmentLeakRateTestPanelandthePPCScomputermonitorsthesixRTDs.(Range:0-300F)32SeeNote22CVSumpWaterTemperatureSumpB(RHRSuctionSource)50250oF2RTDsInstalledasPartofRVLIS;TE-490A/Bor16TE-491A/B(Range:0to360'F)26[EQProgram]FormerItem3.3.159'oo7/7o4vP-e7 tig1 Page8of19.-CHEMICALANDVOLUMECONTROLSYSTEM(CVCS)ReactorWaterMakeupFlowLetdownFlowVolumeControlTankLevelCOOLINGWATERSYSTEM(CCW)0-110%DesignFlow0-110%DesignFlowToptoBottomFI-144(Range:5-75gpmRotameter)FT-134(Range:0-100gpm)LT-112(Range:0to76"H,O~0-100%)927N/A9N/AFormerItem3.3.16ComponentCoolingWaterPumpTemperaturetoESFCCWFlowtoESF40200oF0-110%DesignFlow2CCWSystemConditions:~HeatExchangerTemperatureTE-621(Range:0to225~F)~Pump(s)PressureMonitorPIC-617(Range:0to150psig)~~CCWSurgeTankLevelLT-618(Range:0to46"H,O~0to100%)FT-619(Range:0to7000gpmwithLowFlowAlarm81800gpm)928FormerItem3.3.17SeeAttachmentAItem3.3.18HighLevelRadioactiveTankLevels~WasteDrain(Holdup)Tank~ReactorCoolantDrainTankRadioactiveGasHoldupTankPressure(GasDecay)ToptoBottom~0to100%ToptoBottom~0to100%0to150%Design3LT-1001(Range:0to-128"H,O)LT-1003(Range:0to28"H,O)PT-1036,PT-1037,PT-1038,PT-1039(Range:0-150psig)DesignPressureofEachTankanditsSafetyValveSetpointis150psig.NormalRadgasPumpOperatingConditionis(100psig29N/AFormerItem3.3.19SI~IERYURECARDPd'd7/7D~QP-dgA1soAvai1ab1eOnApertureCard IIlI,VIIIII Page9of19.-VENTILATIONSYSTEMSEmergencyVentDamperPosition(ContainmentMini-PurgeValves)Open/CloseStatusExistingValveStatusIndicationProvisionsforContainmentAirSupplyorPurgeVentValveisLocatedonMCB.Snap-ActionPositionSwitchesInstalledon6"PurgeSupplyandExhaustValvesduringthe1987outage.Mini-PurgeValves:7970,7971;7445,7478.MainPurgeValvesAOV-5869andAOV-5879areblindflanged,andaccessedonlywhenthereactorissecuredoff-lineSeeAttachmentAItem3.3.4POl(ERSUPPLYSOURCESStatusofStandbyPowerandOtherEnergySourcesImportanttoSafety-(Hydraulic,Pneumatic):480VBusVoltage/CurrentDieselGeneratorVoltmeters,Wattmeters(KW)andAmmetezsontheMainControlBoard(MCB)10N/AInstrumentBusVoltage/CurrentVoltmetersonPanelsinControlRoomsAmmetezs10N/AonInveztersinBatteryRoomsforBus1Aandlc125VDCBusAirorNitrogen;InstrumentActuationVoltage/CurrentPressureVoltmetersandAmmetersinControlRoomInstrumentAirPT-2023(0to160psig)NitrogenGasPT-1066(0to150psig)NitrogenPT-455andPT-456(0to1000psig)PORVandSIAccumulatorMotiveGas10N/A11N/A12'SI-.AI'KmmKCARDAhaAmiiaMeOgAPCIdeC28f 4IkAtIIIIII SIAPERTURECARDPage10of19-~~rtCONTAINMENTRADZATZONContainmentAreaRadiation,HighRange(TypeA)AREARADIATIONRadiationExposureRateMeters(ContinuousIndicationatFixedLocations)RadiationExposureRateinAreasAd)acenttoContainment1to10'/HrRange,Location,andQualificationCriteriaHaveBeenDevelopedtoSatisfyNUREG-0654,RequirementsforEmergencyRadiologicalMonitors10-'o10'/HrR29,R301.0R/Hrto1~OE07R/Hr(EQProgram]ExistingMicroprocessor-BasedAreaMonitoringEquipmentDisplays.AreaMonitorActiveRangeis0.1through1.0E07mR/hourRange:0.1through1.0E07mR/hour2121N/AFormerItem3.3.6FormerItem3.3.6AZRBORNERADIOACTIVEMAT%2UALSRELEASEDFROMPLANTENVZRONSRADZATZONANDRADIOACTIVITYAirborneRadiohalogensandParticulates-(PortableSamplingwithOnsiteAnalysisCapability)PlantandEnvironmentsRadiation(PortableInstrumentation)PlantandEnvironmentsRadioactivity(PortableInstrumentation)METEOROLOGYWindDirectionWindSpeed10~to10~pCi/cc10~to10'/Hr,GammaPhoton10'o10'ads/Hr,BetaRadiationsandLowEnergyPhotonsMultichannelGammaRaySpectrometer0-360o0-67mphFixedorPortableSamplers1.0E-12pCl/ccto1.0E-3pCi/ccPASSSamplingTechniqueVariesAliquotorDilutedSample1.0E-6R/Hrto1.0E03R/HrGammaPhoton1.0E-3R/Hrto1.0E03R/HrBeta1.0E-8pCito10pCi(orHigherBasedUponSamplingDilutionTechniques)0to360OMonitoredat33,150,250ftElevations(Range:0-100mph)NOTE:NobleGases,Particulates,HalogensandVentFlowrateInformationisPresentedElsewhereinThisComparisonTableN/AN/AN/AN/AN/APH7/7OPVP-18 I'tIiI Pagellof19-EstimationofAtmosphericStabilityACCZDENTSAMPLZNGCAPABZLZTY(ANALYSZSCAPABZLZTYON-SZTE)PrimaryCoolantandSump~GrossActivityperml~GammaSpectrum~BoronContent~ChlorideContent~DissolvedHydrogenDissolvedOxygen~pH~ConductivityBasedonVerticalTemperatureDifferencesGrabSample1.0)LCito10.0CiisotopicAnalysis0-6000ppm0-20ppm0-2000cc(STP)/Kg0-20ppm1-13N/A3(all)RTDsat33,150,250ftElevations;DeltaTBetweenEachElevationRange:Soto+20oFAvailablewithPASS(PostAccidentSamplingSystem)DilutionMeansisProvidedWithinthePASSLiquidandGasSamplePanel(LGSP),Thenthepreparedsampleisbroughttothecountingfacility.LabAnalysiswithaMultichannelGammaSpectrometer1.0E-8pCito10pCiorHigherBasedUponSamplingDilutionTechniques50'o6000~ppm)withPASSMannitolAuto-TitrationAnalysisMethodology5ppbto100ppmSeparateLabAnalysisAfterLGSPGrabSample(10-2000cc/Kg)withPASSGasChromatagraph(0.1-20ppm)withPASSProbeMeasurement1-13pHwithPASSBoronMeasurementEquipment0.1-500pmho/cdN/A20FormerItem3.3.203020'/A30N/AN/AN/AN/AN/AN/AContainmentAir:~HydrogenContent~OxygenContentGrabSample0-10%0-30%3(all)AvailablewithPASSAvailablewithEithertheEQQualifiedCOMSIPHydrogenMonitorsorPASSnon-EQGasChromatagraph0to10%,0to20%(orupto100%concentration)0-30%withPASSGasChromatagraphN/AN/AN/AwpERTUREgoo7/'>Dugs-yt'ARDAlsoAvailableOnApertureCard 4)p(ir1 Page12of1R-a.GammaSpectrumIsotopicAnalysisExisting;SeparateGe(Li)LabAnalysis-Multi-ChannelGammaSpectrometerAfterPASSLGSPGrabSample1.0E-8pCito10pCl20N/A30SIAPIYURECARDA~soAvailableOnApertureCard C1Jr(p~'I ATTACHMENTBNOTESSIAPERTURECARDAlsoAvailableOnAperturCardPage13of19ItemsinthisRG&ERegulatoryGuide1.97comparisontablearelistedintheorderofappearanceinTable3-PWRVARIABLES,withexceptions.TheexceptionsconcernTable3individualitemsthat,areincludedundermorethanoneTypeofpreviouslystatedvariables.Forbrevity,repeateditemsdonotappearmorethanonce(e.g.,RCSColdLegTemperature,ContainmentPressure,NobleGasEffluents,etc.).IfaTable3measurementvariableisassignedmorethanoneType,thehigheststatedCategoryorRa'ngezeceivesaresponseinthisattachmentwhereveritfirstappears(e.g.,CoreExitThermocoupleCategory3,TypeBvariableor,[responsepreparedfor]Category1,TypeCvariable).ThetwonarrowrangeSumpACategory2TypeBleveltransmittersarenotedhereasanadjunctmeasurement.ThewiderangelevelCategory1redundantmeasurementsinSumpBsatisfytheRegulatoryGuide1.97concerns.TheCategory2radiationmonitoringequipmentislocatedinmildenvironmentspriortoanyeventthatwouldactuateaprotectiveinterlockoralarmbasedonaradiationconditionabovethesetpoint.Radiationmonitorsdealwitharea,liquidprocess,gasandparticulateconditions.MostoftheseapplicationsatGinnaresultinacontrolroomalarmwithadministrativecontrolproceduresimposedontheoperatorsresponsetoclearthealarmcondition.Fivedesignatedalarmconditionsalsoprovideanelectricalinterlocktosecurepossibleparticulate,gas,orliquidreleasepathswellbelowanyTechSpecallowablelimits(containmentairparticulateorgas,AuxiliaryBuildingairparticulateorgas,andsteamgeneratorblowdowndrain).TheGinnaP-9proceduredealswithradiationmonitorsetp'ointbackgroundsandconservativelyestablishessetpoints.ProcedurePC-23.5detailstheradioactivereleaseSPING-4effluentmonitoringequipment.Parametersmeasuzeddealwithnoblegas,gammabackground,areamonitoring,particulateandhalogengasconcentrations.DuringDesignBasisAccidentconditionsinvolvingasafetyinjectionorcontainmentisolationsignal,theradiationmonitorsactrapidlytoperformtheirdesignalarm,recordingand/orinterlockfunctions.TheEmergencyOperatingProceduresdonotrequirethefurtherdeploymentofthesemonitoringdevices.Airparticulate,radgasandliquidmonitorsaregenerallylocatedinmildenvironmentsduringnormalplantoperations.PostAccidentSamplingSystem(PASS)provisionsaredesignedtoaccesspotentiallyhotsamplesfromisolatedsystemswhichwouldbemonitoredbyonlineradmonitoringequipment.Thedefense-in-depthstrategyinvolvingtheuseofCategory3,TypeBPASSlimitsthedegradationofmanyradiationmonitorsduetoharshenvironswhilealsoprovidingalternativemeasurementmeans.Someareamonitorsmay,beexposedtodesignbasisconcentrationsofradioactiveandthermalaccidentharshenvironments.Again,defense-in-depthprovisions'forhand-heldradiationsurveyandcontaminatedfluidassaymeteringdevicesorPASS(whichisnotsinglefailure-proof)providesthecapabilitytoprocedurallyfollowplantrecoveryopezations.Forthesereasons,EnvironmentalQualificationofradiationmonitoringdevicesisnotrequired.TheRWSTlevelmonitoringredundanttransmittersarelocatedinanenvironmentallymildlocationduringnormalandaccident(DBA)conditions.ManualandautomaticinstrumentationactionsoccurduringSafetyInjectionandSwitchovertoSumpBRHRsuction.OperatoractionsrelyonRWSTlevelinstrumentationindications.Sincetheleveltransmittersarelocatedinamildenvironment,EquipmentQualificationisnotrequiredfortheseClasslEFoxboroN-E11DMtransmitters.CondensateStorageTank(CST)leveltransmitterprovisionsarenotredundantpertank.However,eachofthetwotankswithasingletransmitterispipedtogetherwithadministrativelycontrolledlockedopen10"valvesandthusredundantindicationisprovided.Furthermore,theCSTsarenotlocatedinaSeismicCategory1building,althoughtheinstalledFoxboroModelN-E13DMlevelinstrumentsareSeismicCategory1devices.(ThisisconsistentwithSectionB,.6thparagraphandTable1,Topic3ofRegulatoryGuide1.97.)LeveltransmitterredundancyorbuildingseismicqualificationisanalyzednottobeaconcernbasedupontankcrosstieconfigurationandtheRegulatoryGuide1.97citedreference.TheleveltransmittersareinanenvironmentallymildlocationthereforetheyhavenotbeenincludedintheEquipmentQualificationProgram.TheGinnaStationauxiliaryfeedwaterarrangementslocatedinmildenvironmentlocationsprovideaqualifiedredundantSeismicCategory1system.IfforanyreasonAFWsupplysourceshavetobeaugmentedwithanotherdiversesupplysource,apipedcross-connectexistswhichallowstheAFWpumpsortheSBAFWpumpstotakesuctionfromtheServiceWaterpumps,(thatdrawwaterfromLakeOntario).TheseismicallyqualifiedAFWtoSWsystempipingcrosstieisavailabletoprovideanunlimitedsourceofauxiliaryfeedwatertothesteamgenerators.TheservicewaterCategory3localflowandtemperatureindicator/switchsensorsdownstreamofeachcontainmentairfancoolerwatersideheatexchangerprovideevidencethatheatisbeingremovedwhencomparedwiththetemperatureoftheservicewatersupplytoeachofthecoolers.Thezearehightemperaturealarmsprovidedinthecontrolroomforeachfan'sservicewaterdischargeline.Thelocalservicewaterflowindicator/switchandtemperatureindicator/switchsensorsareinanenvironmentally'mildlocationandthereforenotintheEQProgram.MainControlRoompanelboardhandswitchandstatuslightsprovidetheOperatorwithfanoperationdata.poo7(7DPYP-/3

\tpIl SlISOXVmIabieGIIAPKR7URK~,-~~<:ca.aGARBPage14of19Thedeterminationthatcontainmentheatremovalisoccurringafteranaccident(DBA)involvestheuseofCategory1,TypeAinstrumentation.EnvironmentallyQualifiedcontainmentpressureandcontainmentsumpwatertemperatureprovidetherequiredpostDBAtemperaturedecreasedata.ContainmentAirTemperaturemonitoringdevicesarealsobeingconsideredforupgrade.TheCategory2,TypeDCVCSflowandlevel,andCCWtemperatureaflowmeasurementinstrumentationislocatedinanon-harshenvironmentintheauxiliazybuilding.TheEmergencyOperationProceduresdonotstipulatethattheseClasslEsensorsystemshavetobedeployedduringanaccident(DBA),nordooperatorshavetoformdecisionsbasedondisplaydata.Forthesereasons,theforegoinginstrumentationisregardedtobenon-EQ.TheCategory2,Type.Delectricalvoltageandcurrentinstrumentationsensorsarelocatedwithinswitchgearinamildenvironment.TheyarenotsubjecttoahazshenvironmentduringaDesignBasisaccident(DBA).TheEmergencyOperationProcedures(EOPs)donotspecificallyrequireanysubsequentoperatoractionsordecisionsbasedonoutputdata.TheremoteswitchgearlocatedelectricalsensorsarethereforenotincludedintheEQProgram.Thepressuretransmittersthatmonitorinstrumentairandnitrogenarelocatedinmildenvironmentsatalltimes.TheEOPsdonotrequireanyoperatorobservationsnorsafetysignificantdecision-makingbaseduponpressureindicationsattheMCB.ThepressuretransmittersazenotincludedintheEQProgramforthesereasons.rThetwoN,highpressureaccumulatorpressuretransmittersmonitorabackupmotivegassourcetooperatePORVsandsafetyinjectionchargedaccumulators.Solenoidoperatedvalves,checkvalveconfigurationsandpressurecontrolvalvesdirectthe'gastovariousadministrativelycontrolleddestinationspriortoanyaccidentscenario.SincethepressuretransmittersperformtheirserviceinmildenvironmentconditionsandarenotsubjecttoDBAharshenvirons,theyarenotincludedintheEQProgram.Theaccumulatormotorizedvalveshavebeenplacedintheopenpositionbyadministrativecontzol,thenelectricallylockedinthatopenconditionbyremovaloffusestopreventinadvertentsafetyinjectionaccumulatorisolation.TheMOV-841andMOV-865valvesremainintheopenconfigurationisolatedfromRCSfluidsbythepassivecheckvalves842Aand842B.SincetheadministrativelycontrolledaccumulatorLimitorquevalvesachievethesafety-relatedprocessalignmentwithoutactuationpriortoharshenvirons,they'enotincludedintheEquipmentQualificationProgram.Thenew,replacementmicroprocessor-basedEberlineSPING-4processradiationmonitoringsystemequipmentdigitallymeasuresnoblegas,particulatesandhalogenactivity.Plant-specificadministrativeproceduresprovidecalculationsealercoefficientsforconversionfromcpmreadoutnotationstoion-specificresults(pCi/ccormR/hr).TheadministrativeproceduresofinterestincludeP-9(ranges,techspeclimitsandsetpoints),EPIP2-4conversionmethodsandscalarconstants,PC-23.5concernedwithEberlineSPING-4effluentmonitorrangeswithdataconversionmultipliers/setpointlimits,andcomputeralarmandtimebasedtrendvaluesarefoundinthePPCS(PlantProcessComputerSystem)index.RCSSolubleBoronConcentrationFormerTopic3.3.2TheUSNRCSERdatedApril14,1986dealswithBoronanalysisrangetopics.NUREG-0737ItemII.B.3approvalforBoronanalysisrangeandaccuracystatementswasdeferredforRGaEintheUSNRCcorrespondencedatedApril14,1986.TheBoronanalysisinaccuracyallowanceswerepublished*June30,1982asNUREG-0737supplementaryinformation.IntheNRCdocumentdatedJune30,1982,itisstated:"Ingeneralthisanalysisshouldbeaccuratewithina5%ofthemeasuredvalue(i.e.,at6000ppmBoron,thetoleranceis+300ppmwhileat1000ppmboronthetoleranceisF50ppm).Forconcentrationsbelow1000ppmboronthetolerancebandshouldremainatt50ppm."Ginnaplantadministrativecontrolsoveranalyzerstandardsolutionchecksduringcomputerizedcalibrationrunsaremorerestrictivj(intheorderof+20ppm,orrecalibrateandstandardizeagain).Thedocumenteda5%accuracybandremainsthegoverningBoronmeasurementallowance.*June30,1982correspondencebetweenS.A.Varga(USNRCORBtoJ.Dolan,Docket50-315D.CDCookIMEC;Criterion10).TheCategory1,TypeAReactorVesselLevelIndicatingSystem(RVLIS)wasplacedinserviceduringMarch1987.ThedesignbasisandequipmentfeaturesconcerningtheRVLISwereevaluatedbytheUSNRCTAC445137AmendmentNo.30toRGaE'sOperatingLicense.ThedeterminationbytheUSNRCinitscorrespondencedatedSeptember23,1988wasthatthesafetybasisandperformancewasacceptable.RCSColdLegRTDshavebeenstipulatedtobeTypeAmeasurementvariables.TheColdLegRTDsdonotprovideanysignalinputdataintoEngineeredSafetyFeaturecontrolsystemapparatus.However,theydirectlyprovidetheOperatorwithdecision-makingdisplaydata.EOP(EmezgencyOperating'rocedures)requirementsareimposedupontheOperatortoobserveColdLegRTDsandperformacontingentactionbasedonTE-409B-l/TE-410B-lsignalinformation.OperatorsobserveeitherofthecoldlegRTDtemperaturestomaintainanoverallcooldownrate<100'FperhourtominimigemetalthezmalstressonRCScomponents.ThecoldlegRTDsalsoareutilizedintheAnalogReactor.VesselLevelIndicatingSystem(RVLIS).EachcoldlegRTDisenvironmentallyqualifiedanddocumentedinRG&E's10CFR50.49program.TheRVLISRTDinputsignalineitheranalogsignalprocessrackconvertsits/so7/702QP-/P

~ERYUREAlsoAvaiIableOnApertureCardCARDPage15of19resistancesignalintodiverseinstrumentsignalssuitabletodriveeachoftwomaincontrolboardcoldlegtemperatureindicators(0to700'F).RVLISisaCategory1,TypeAanalogindicatingsystemforoperatorassessmentdutiesduringallplantoperatingconditions.RVLISdoesnotprovideanypermissiveorstoplogiccontrolsignaloutputstoelectricalequipment.RCShotlegRTDshavebeenstipulatedasTypeAmeasurementvariables.ThehotlegRTDsTE-409A-1andTE-410A-1donotprovideanysignalinputdataintoEngineeredSafeguardsFeaturecontrolsystemapparatus;However,theydirectlyprovidetheOperatorwithdecision-makingdisplaydata.EOP(EmergencyOperatingProcedure)requirementsareimposedupontheOperatortoobservethetwodiversehotlegRTDsintheeventualitythatCETsaren'tavailableandperformacontingentbackupactionbasedonRCStemperatures<3254F.TheprimaryactionstepsinvolvepossiblesecuringofoneormoreSIpumpsbasedonCoreExitThermocouple/RCSPressuzeSubcoolingdeterminations,andRHRpumpingsystemavailability.AnotheruseforhotlegRTDsincludetheSubcoolingMarginMonitors(SMM)thatutilizesinglehotlegRTDanalogdatainputsandlinksRCSpressuredatatoproducetwodifferent0to100'Fsubcooledmarginindicationsinthemaincontrolroom.NoSMMOperatordecisionorobservationrequirementsexist,sincetheEOPsrelyonotherqualifiedsystemcomponentstoprovideSMMinformation(CoreExitThermocouples/RCSpressure).ThehotlegRTDsareenvironmentallyqualifiedandazedocumentedinRGaE's10CFR50.49program.ThesignalsfromeachhotlegRTDareroutedtothemaincontrolboardindicators.DereesofSubcoolin(RCSCirculatingFluid)FormerItem3.3.3ItemII.F.2ofNUREG-0737whichdealswithcirculatingprimaryfluidsubcooledmarginparameterswasreviewedandapprovedbytheNRCintheSERdatedSeptember7,1980.TheGinnaStationEmergencyOperatingProcedures(EOPs)requirethatprimaryReactorCoolantSystem(RCS)loopcirculatingfluidsubcoolinginformationbegeneratedbymeansofOperatorobservationsandcalculations.TheEOPprovidesagraphicminimumSubcooledMarginMonitor(SMM)nomogramformatbasedonCategory1,TypeAvariablemeasurementsinvolvingmaincontrolroomdisplayinstrumentationandOperatorprepareddataplotsofcoreexitthermocoupletemperatureandRCSpressure.RegulatoryGuide1.97Category2TypeCmeasurementvariableguidanceappliestothisSMMtopic.EOPsinvolvedwithaharshcontainmentconditionrequiresthattheOperationsteamprepareaminimumSMMGinnanomographwhichdisplayssubcooledregionmarginconditions(orinadequatesubcoolingmargin)undernormaloradversecontainmentconditions.TheSMMnomographconservativelyaccountsforanyinstrumentationinaccuracies.Theeffectiverangeofthisnomographexceedsthe200Fsubcooled/35'FsuperheatrangerecommendationofRegulatoryGuide1.97.SubcooledmarginmonitoringinformationderivedfromcoreexitthermocoupleandRCSpressureisalsoautomaticallycalculatedanddisplayedonthenonsafety-relatedSafetyAssessmentSystem(SAS).TheeffectiverangeoftheSASalsoexceedsthe200'Fsubcooled/35~FsuperheatRegulatoryGuide1.97guidance.TheredundantexistingClass1EsubcooledmarginmonitoranalogpanelmetersthatarebaseduponqualifiedanalogsignalinputsfromreactoroutlethotlegtemperatureRTDsandRCSwide-rangepressurehaveanindgcationrangeof0-100Fsubcooled.TheSMMmetersarenotrequiredtobeobservedbyEOPsbutprovideadiversebackupinformationdisplayandwillthereforebeleftas-is.ThepresentGinnaStationsubcooledmargindisplayarrangementutilizingCategory1,TypeAvariablemeasurementswasacceptablebaseduponNRCapprovalintheSeptember7,1980SER.RadioactivitConcentrationorRadiationLevelinCirculatinPrimarCoolant(IsotopicAnalysis)FormerTopic3.3.5IITheNRCSER,datedApril14,198t)foundtheinstrumentationprovidedforthismeasurementvariabletobeacceptable.TheoriginaldesignbasisforimplementationofNUREG-0737TopicII.B.3,involvessamplingrequirementstoperformaradiologicalanalysiswithinathreehourtimeperiodfor"certainradionuclidesinthereactorcoolant...".TheNUREG-0737Clarification,datedOctober31,1980,(2)(d),states"Alternatively,haveinlinemonitoringcapabilitiestoperform'llorpartoftheaboveanaw.ysis".Ginna'sresponseinvolvedtheselectionofsemi-automatedmanualdilutiontechniquesinvolvingsamplewithdrawalandpreparationofthesamplealiquotbythePost-AccidentSamplingSystem,notaninlinemonitoringcapability.Theremote-manualsamplinganddilutioncapabilitiesoftheexistinginstalledequipmentareequivalenttoCategory3,TypeCattributes.TheGinnaPost-AccidentSamplingSystem(PASS)isequippedwit)remote-manualabilitiestoacquireaReactorCoolantSystem(RCS)sample,thenmanipulatethesamplebydilutingitapproximately1000:1.ThedilutantmaythenbemanuallydeliveredtoeitheroftwodiversecountingfacilitiesatGinnaStationformultichannelspectrometerisotopicanalyses',.ThePASSpanelisutili,zedbyHealthPhysicstechniciansatleastoncepezweektoproduceroutinepzoceduralizedanalyseswhentheunitison-lj.ne.RegulatoryGuide1.97guidanceforradiationconcentrationdeterminationsstatesthatCategory1,TypeCattributesapplytothismeasurementvariablewiththepurposestatedtobedetectionofbreach(FuelCladding~topic).FuelcladdingbreachdetectionisnotwithintheGinnalicensingbasisbutisacknowledgedtobeaconcernduringFunctionalRestorationactivities.FunctionalRestorationactivityisbeyondtheGinnalicensingbasis.NoEOPactivityinvolvedwithdesignbasisDBAoccurrencesrequires'thattheradiationconcentration=determinationsinRCSbeperformed,andthere'snoconsequentoperatoractionrequirement.SafetyIn)ectionborationwillhavebeenperformedtoshutdownthereactorandmaintainitinasubcritical5'oo7/7o~Q4-(S l1II(cV Page16of19state.OtherEnvironmentallyQualified10CFR50.49equipmenthasbeenchosenanddedicatedtotrackthecourseoftheDBA.Forthesereasons,RG&ErequeststhatanexceptionbegrantedtoretaintheexistingPASSCategory3,TypeCmeasurementmethodology.RadiationExposureRate(AreaMonitoring)FormerTopic3.3.6ArearadiationmonitorsareCategory2,TypeEinstruments,andmeetNRCRegulatoryGuide1.97rangeguidancelanguage.ThemonitozsaredetailedintheAttachmentBchartdataundertheheading"AreaRadiation".("EnvironsRadiationandRadioactivity","ContainmentRadiation",and"Containment"topicsazesomewhatrelatedtothisissue.)TheEOPsdonotrequireoperatorresponsetoanyarearadiationmonitoralertduringaDBA.Themaincontrolroomorcomputerizedareamonitordisplaysserveasahumanwarningfunction,notasanautomaticprotectivesystem.Thearearadiationmonitoringsystemhasbeenupgradedtoincludemicroprocessorbasedlocalandremotereadoutdisplays.Dedicatedmaincontrolpanelboardrecorderspostareamonitorradiationdata.Themicroprocessor-basedfieldremoteandcontrolboardareamonitorsignalhandlingapparatushasanovezallspanrangeof0.1through1.0E07mR/hour.Specificsconcerningthesemonitors,theirsetpointdataandcalculationscalarconstantsareadministrativelycontrolledwithintheP-9proceduresforallradiationmonitorsatfixedlocationsintheGinnaPlant.ComputeroutputsdealingwithalarmandtimebasedtrendsazeprocessedbythePlantProcessComputerSystem(PPCS).AlarmsetpointsandtrendinformationaremaintainedwithinthePPCScomputerindex.RHRHeatExchanezOutletTemperatureFormerItem3.3.7RG&EhasdeterminedthemaximumRCSfluidapproachtemperatureUpstreamfromtheRHRheatexchangers,beforetemperaturereductionduringpost-LOCAsumprecirculation.Thisreactorcoolantfluidtemperatureis,approximately264F.Theinstalledinstrumentrangeof50'Fto400'FisconsideredsufficienttocompensateforequipmentoroperatinguncertaintiesandprovidesawidemarginwhenRHRheatexchangersattemperatetherecirculatingfluids.ThetemperatureisderivedfromoneResistanceTemperatureDevicewhichmonitorsRCSfluidconditions.TheRTDislocatedinpotentiallyharshenvironsanditstemperaturedataisdizectedtothePlantProcessComputerSystemandalsototheSafetyAssessmentSystemcomputerdisplays.ThismeasurementvariableischaracterizedasaCategory2,TypeDinstrumentationpezRegulatoryGuide1.97.Itdoesnotperformasafety-relatedfunctionatGinna.TherearenoEOPrequirementsforthisCategory2,TypeDtemperaturemeasurement,noristhereanyrequiredOperatorresponsebasedonitsdisplay.Forthesereasons,theRHRheatexchangeroutlettemperatureinstrumentationisnotincludedinthe10CFR50.49Program.AccumulatorTankLevelandPressureFormerTopic3.3.8TheApril14,1986NRCSERcorrespondencefoundtheCategory2,TypeDinstrumentationprovidedforthisvariabletobeacceptable.Nofurtherresponsewasrequiredatthattime.TheSIaccumulatorsareadministrativelymaintainedinapzessurechargedandfilledstatusundernormalplantoperatingcircumstances.NoOperatoractionisrequiredotherthantheroutinesurveillanceoftheaccumulators'evelfillandpressurizedreadystateduringnormalplantoperation.DuringDBAconditionswhichresultinsubsequentharshenvironmentincontainmenttherearenoEOPdizectedsafety-relatedOperatorrequirementswhichrelyuponlevelorpressureaccumulatordisplaydata.SIAPE<RTURECARDq>u7/pcPPP--/4AlsoAvailableOnApertureCard l~I'4,~+q'1hL Page17of19redineachoftwovessels.Twoelectronicdisplacementtypenarrowbandlevel1Mit1lbdidid1additioalinformatiorelativetothesafetyfunctionoftheaccumulatereay-o-ovidedforeachaccumulatorvesse.anozsproveore1tti11ihhiotthCtoy2TD1toroerationalreadinesspriortoany,eventwhichwouldzesutnaarsenI10CFR50.49EitQlifitioPovariabletransmittersarenotincludedinRG&E'sBoricAcidCharainFlowFormerTopic3.3.9rovidedforthisvariabletobeacceptable.NofurtherresponsewasTheNRCSER,datedApril14,1986foundthatCategory2,TypeDinstrumentationproveorisvadeterminedtobenecessaryatthattime.lizesadifferentialpressureelectronicpressuretransmitterannditsassociatedorificeedeTankatanAuxiliaryBuildingbasementlocationwhichisgenerallylocateitio)dbkoudditioio11le'ha20Rtinmildenvironments.Normaltemperatureisapproximately80'F,(50'-104variation)anacgrounathetransmitterlocation(1.0E04RadsduringaDBA).owrateindicationandcontrolsetpointsatthemaincontrolpanelboard.ThechargingpumpsiithihiidtomititthoofdiepezaoSithth1tidistinofdesinateddesignbassequpmenwarelocatedbasisaccident.TheSafetyln)ectionSystemisdesignaeorapppinanenvironmentallymildlocation,theelectricalenvironmentalqualificationsavenoeen2TeDmeasurementvariable.TheCVCSpumpingsystemlineflowdifferentialpressurenggoyyPfDBAFhfljFT128i1ddfanenvironmentallymildlocationisnotrequiredbytheEOPsduringthecourseofa.oresthe10CFR50.49EQProgram.LowPressureInectionSstemFlow(ResidualHeatRemoval[RHR])FormerTopic3.3.10an.ed,0737Sulement1Secton.waneTeysemhRHRStflowtransmittermeetstherequirementsofNUREG-,i62ithanexception.FT-626RHRflowisnotconfigureFT-626isanenvironmentallyquaenucelifid1arserviceFoxboroN-E13DMseriestransmittrwitharedundantflowtransmitterloop.TheexistinglowtransmittermaybeexposedtoaradiationharshenvironmentduringaaDBAerformingCategory1,TypeAmeasurementandindicationservice.Thisflowtransmttermayeexh5E04Radsat10footdistancefromapumpradiationsource).(lesstanasanndinstallaredundantflowtransmittertomonitorRHRflowwiththeexistingppepynndinstallaredunantowransmniedrimar1993Rfli0tThit1tdftdtiillbeenvironmentallyqualifiedandincorporatenefloworceifiFE-2.TheERinstallationiscurrentlyscheduledforthe1993Rggdithe10CFR50.49program.TheredundantRHRfowsgnawdisplayandalsobedirectedtotheRVLISsystem.ContainmentSumoWaterTemperatureFormerItem3.3.15edwithenvironmentallyqualifiedClass1ERTDs(ResistanceTemperatureDetectors)onthehetwoRTDelectricalterminationprovisionsarelocatedabovethepotentapos-11oidliiddioiodRTDi1TE-490A~Beveransmment1tddibiidtThodofthottilliRTD1o0o360F.Th.Co1,TARVLimatel4.3feetabovethecontanmenasemeISdRTDth1dtdi1othPlt,PoCodesinraneforthecompensatonouonsystemhasbeenoperationalsince1987andisdgesinedtorovide'nisolatedcomputerzeermPforthissumtemperaturemeasurement,norarethereanyEgypmerenc0erationOperatoreman.ereddTharenoemergencyoperatingproceduzalrequirementsortssumpzeddisla.Proceduralordecisionstepsinvolvingthecomputerizespay.SIyoo~gvoavu-/7APERY~KAlsoAyailab1eOnCARDApertureCaid flfl417 Page18of19TheRVLIStemperaturedetectionequipmentisqualifiedforthepostulatedharshenvironmentprocessconditionsandallsensors,wiringandconnectionsareintheGinnaEQ(EquipmentQualification)program.Thecontainmentwatertemperaturemeasurementmethodcomp)ieswithRegulatoryGuide1.97recommendationsforaCategory2TypeDmeasurement.(ReactorWaterMakeup)FormerTopic3.3.16TheNRCSERdatedApril14,1986foundthatCategory2,TypeDinstrumentationprovidedforthisvariabletobeacceptable.Nofurtherresponseisrequired.ComponentCoolinWatertoEnineeredSafeardsFeatures(TemperatureMeasurement)FormerTopic3.3.17TheNRCSERdatedApril14,1986foundthatCategory2,TypeDinstrumentationprovidedforthisvariabletobeacceptable.Nofurtherresponseisrequired.RadioactiveGasHolduTankPressureFormerItem3.3.19EachofthefourCategory3,TypeDgasdecaytankpressureconditionsarenormallymaintainedbelowamaximumoperatingpressureof<100psig.Thenormaloperatingpressureof80to100psigislimitedbythedesignoftheliquidringrotarycompressorwhichpressurizesthegasdeliveredtoanyofthedecaytanks.Thepressuretransmitterrangeof0-150psigprovidessubstantialmarginoverthisoperatingrange.Eachofthegasdecayholduptanksisequippedwithapressuresafetyreliefvalvesetat150psigandalsoequippedwithaseriesconnectedrupturedisc.150psigisequaltothepressuresafetyreliefvalvesetpointandisalsothedesignp"essuzeofthetank.RGaEconsidersthatappropziateOperatoraction,wouldbetakenaspressuresapproach80psig,butpriortothetimethatthefullscale150psigreadingwaszeached.NoEmergencyOperatingProceduresrequireanyOperatoractionordecisionasaconsequenceofthefourmaincontrolroompressuredisplays.Itisapparentthatpressuresgreaterthanthereliefvalvesetpointpressureof150psigarenotpossible.GuidanceinRegulatoryGuide1,97suggeststhat225psigpressureindication(150%ofdesignpressure)beavailable.Sincetankoverpressurerelieftakesplaceat150psigandtheliquid-ringcompressorsareadministrativelycontrolledtopressureoutputsintherangeof80to<100psig,RGaEelectstoretainthetransmitter/indicationrangesattheexistingrangeof0to150psig.DecaytankruptureanalyseshavebeenperformedperChapter15oftheUFSAR,withradiologicalconsequenceswellbelowPart100guidelines.RGaE,therefore,doesnotconsiderthatthereisasafetyreasontomodifytheradgasdecaytankpressureinstrumentation.AccidentSamlinFormerTopic3.3.20TheNRCTERnotedafewminordeviationsfromtheguidanceofRegulatoryGuide1.97regardingtherangeofCategory3,TypeEsampledparametersandnotedthatthesedeviationswouldbeaddressedunderthereviewof,,NUREG-0737ItemII.B.3.AnNRCSERdatedApril14,1984determinedtheacceptabilityofRG6E'resolutionofItemII.B.3ofNUREG-0737.SafetyInfectionFlow(SI)(NewHPITopic)TheSISystemflowtransmittersmeettherequirementsofNUREG-0737Supplement1,Section6.2withanexception.FT-924andFT-925arenotconfiguredasredundantflowtransmitterloopswithineachtrain.TheSIpipingsystemsplitsintoaparallelpipingarrangement.Eachoftwolegsisequippedwithonefloworificeandonetransmitter.ThesymmetryofaflowtransmitterineachoftworedundantpipedflowpathsprovidesSIflowmeasurementredundancy.Thetwopipedflowpathsaredesignedtobesinglefailure-proof.TheexistingflowtransmittersareenvironmentallyqualifiednuclearserviceFoxboroN-E13DMseriestransmittersperformingCategory1,TypeAmeasurementandindicationservice.TheflowtransmittersincontainmentmaybesubjecttotheDBAharshenvironmentprofiles(spray,humidity,temperatureandpressure).SL@p@@Y~ppoo~r~oggZ-]'gggggXleoXvaxlab1eGnApertaxeCard rv~tf~P]hfr',(Ie..o~~I~

Page19of19ContainmentAirTemperature(NewTopic)24ContainmentAirTemperatureRTDsarebeingreplacedthroughoutcontainment.SixdesignatedCategory2,TypeDRTDswhicharepresentlyenteredintothePPCScomputerizeddisplay(1operatingdeck,4intermediate,1basement),willreceivedatafromthereplacementRTDs.ThePPCSprovidestheContainmentAirTemperaturedisplayupondemandfromtheOperator(RegulatoryGuide1.97,Table1,Topic6coversthisCategory2displaytopic).TheContainmentAirRTDsarebeingenvironmentalqualificationtestedinaccordancewith10CFR50.49Programrequirements.ThetentativecompletiondateanddedicationoftheenvironmentallytestedRTDsforEQserviceisthe1991RefuelingOutage.TwoContainmentSumpAleveltransmittersLT-2039andLT-2044havebeeninstalledtomonitorwaterleveloff-normalincrease.ThesetransmittersaremaintainedasCategory3,TypeCdevicesnottheReg.GuideCategory2,TypeCguidanceforthismeasurementvariable.TheEOPE-O,Step26directstheoperatorstocheckiftheRCSisintactandusessumpAlevelasoneofseveralsourcesoftheinformationtobasethatdecision.TherearenospecifiedoperatorrequirementsduringasumplevelincreaseindicationotherthanenteringEOP*E-0todetermineifthere'sanyleakagesourceiftheRCSisnotintact.EOP*E-1usescommittedCategory1TypeAmeasurementapparatustofollowtheDBAandpinpointthesourceofleakage.LT-2039andLT-2044areusedinconcertwithotherRCSbreachdetection-instrumentationincludingradiationmonitoring,containmentpressureandSumpBleveldetectionequipmentforRCSbreachdeterminations.TechnicalSpecificationSection3.1.5dealswithRCSleakagelimitationsandplantresponseswheneverleakparametezsaredetermined.LT-2039andLT-2044operateatanearlypartofareactortriporsafetyinjectionoccurzenceandplaynoactiveroleinthegenerationoftriporSIsignals.SumpAlevelmeasurementsarediagnosticaidsusedinconcertwithotherenvironmentallyqualifiedapparatus(radiation,pressureandsumpBlevel).Thesetwotransmitterscanfail,buttheywillnotmisdirecttheoperatornorcantheyinterferewithSIorreactortripsequenceswhichprecededstep26.RGaErequestsanexemptionfromtheCategory2GuidanceandseekstoretaintheredundantLT-2039andLT-2044transmittersasCategory3,TypeCmeasurementequipment.*EOPE-0ReactorTriporSafetyInjection*EOPE-1LossofReactororSecondaryCoolant.SEAPERYURLCARD%soAvaitab1eOnApertureCard@AD7/7gP4cPf9 r~>VCiyfpr.y~'ia~>v