ML17309A255

Revised Tech Spec Table 3.6-1 Re Containment Isolation Valve

ML17309A255
Person / Time
Site:	Ginna
Issue date:	04/16/1982
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17256A833	List: ML17256A832 ML17256A834 ML17309A255
References
NUDOCS 8204230588
Download: ML17309A255 (11)

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COO'4PENT.NO.QO100101TM3IZ3.6-1CONTAINMENTISOIATIONVALVESMAXIMUMISOIATIONISOIATIONTIME*(SEC)BOUNDAarISOLATIONBOUNlRHYIDENTIFICATION/DESCRIPTIONFueltransfertube(1)(2)(5)(5)(2)MV5129(3)(2)flangeCV370Bcharginglineto"B"locpSIPump1BdischargeCV889BCV870BCV383B102Alternatechargingto"A"coldleg103ConstructionFireServiceWaterweldedflangeCV862ACV304AAOV1728MOV313AOV1723(4)60105ContainmentSprayPumplA106"A"ReactorCoolantPump(RCP)sealwater4linlet107SumpAdlschargetoWasteHoldupTank108RCPsealwateroutandexcessletdowntoVCTMAXIMUMISOIATIONTIME*(SEC)60109ContainmentSprayPumplB110"B"RCPsealwaterinlet110SItest.lineillRHRto"B"coldleg112letdowntoNon-regen.Heatexchanger113SIBxrplAdischarge120NitrogentoAccumulators120PressurizerReliefTank(PRT)toGasAnalyzer(GA)CV862BCV304BMV879MOV720(20)AOV371CV889ACV870ACV8623AOV5396060(3)(2)(5)(6)MV204AMV820(14)(17)(5)(5)AOV846MV546(7)60 PENT.NO.IDENZIFICATION/DESCRIPTIONISOEATIONBOUNDARYt'SXIMUMISOIATIONTIME*(SEC)ISOIATIONBOUNDARYMhXIMUMISOLATIONTIME*(SEC)121121121121-123124124125cn126I127129NitrogentoPRTReactorMakeupwatertoPRTCont.Press.transmitterPT-945(10)Cont.Press.transmitterPZ-946(10)ReactorCoolantDrainTank(RCDT)toGAExcessletdownsupplyandreturntoheatexchangerPostAccidentairsample"C"fanCcmponentCoolingWater(CCW)frcm1BRCPCCÃfranlARCPCCNtolARCPGXtolBRCPRCDZ6PRTtoVentHeader130CCWtoreactorsupportcooling131CCNtoreactorsupportcooling132Depressurizationat~140RHRpumpsuctionfran"A"Hotleg141RHR-51puqpsuctionfranSumpB142RHR-g2pumpsuctionfrcmSumpB143RCDZpurpsuction201ReactorCcmpart.coolingUnitA6B202"B"Hydrogenreccmbiner(pilot6main)CV528CV529PZ945.PT946AOV1789AOV745CV743NT1569NT1572MOV759BK)V759ACV750ACV750BAOV1787CV1713MOV813K)V814AOV7970M)V701(20)MOV850A(13)M)V850B(13)AOV1721Mv4757(16)MV4636(16)MV1076BMV1084B606060606060MV547(8)AOV508NT1819AMV1819BNT1655(7)(11)(11)MV1571MV1574(12)(12)MOV749AMOV749BAOV1786(19)(19)AOV7971(6)MOV851A(13)MOV851B(13)AOV1003AAOV1003B(11)(11)SOVIV-3BSOVIV-5B60NA.606060606060NA.NormallyClosedNANormallyClosed PENT.NO.IDENTIFICATION/DESCRIPTIONISOIATIONBOUNDARYKKZMUMISOLATIONTIME*(SEC)ISOIATIONBOUNDARYMAXINMISOIATION.TIME*(SEC)203Contain.Press.transmitterPT-947&948203Postaccidentairsampleto"B"fan204205206206207207I209PurgeSupplyDuctHotlegloopsamplePrzr.liquidspacesample"A"S/GsamplePrzr.Steamspacesample"B"S/GsampleReactorCanpart.coolingUnitsA&B210OxygenmakeuptoA&Brecanbiners300301303PurgeExhaustDuctAux.steamsupplytocontainmentAux.steamcondensatereturn"A"Hydrogenrecanbiner(pilotandmain)307FireServiceWater305RadiationMonitorsR-ll,R-12&R-10AAutoInletIsol.305R-ll,R-12&R-10AOutlet305PostAccidentairsample(containrrent)PT947PT948MV1563MV1566AOV5870AOV966CAOV966BAOV5735AOV966AAOV5736MV4758(16)MV4635(16)MV1080AAOV5878MV6151MV6175MV1084AMV1076AAOV1597CV1599MV1554MV1557MV1560CV92296060606060MV1819CMV1819DMV1565MV1568AOV5869MV956D(14)MV956E(14)MV5733(7)MV956FMV5734(7)(11)(11)SOVIV-2ASOVIV-2BAOV5879MV6165(15)MV6152(15)SOVIV-5ASOVIV-3AMV1596AOV1598MV1556MV1559MV1562AOV92275KNormallyClosedNANormallyClosed5NKNormallyClosedNKNormallyClosedNA60(18)

PENT.NO.IDENPIFICATIOH/DESCRIPTIONISOLATIONBOUNRQKMAXIMUMISOIATIONISOZATIONTIME*(SEC)BOUNDARYMAXIMMISOLATIONTIME*(SEC)308ServiceWaterto"A"fancooler309Leakagetestdepressurization310ServiceAirtoContain.310InstrumentAirtoContain.311ServiceWaterfran"B"fancooler312ServiceWaterto"D"fancooler313Leakagetestdepressurization315ServiceWaterfran"C"fancooler316317318319ServiceWaterto"B"fancoolerLeakagetestsupplyDeadweighttester(deccmmissioned)ServiceWaterfran"A"fancooler332Leakagetestandhydrogenjanitorinstrumentationlines320Servicewaterto"C"fancooler321AS/GBlowdown322BS/GBlowdown323ServiceWaterfran"D"fancooler324DemineralizedwatertoContainmnt332Cont.Press.Trans.PT-944,9496950MV4627(16)flangeCV7226CV5393MV4630(16)MV4642(16)flangeMV4643(16)MV4628(16)flangetubingcapMV4629(16)MV4641(16)AOV5738AOV5737MV4644(16)CV8419PT944PT949PT950MV7448MV7452MV7456SOV921SOV922SOV923SOV92460(>>)M)V7445MV7141AOV5392(11)(11)MOV7444(11)(11)M)V7443cap(11)(11)MV5701(7)MV5702(7)(11)AOV8418MV1819GMV1819FMV1819Ecapcapcap(21)(21)(21)(21)NANormallyClosedNA.60HKNormallyClosedHKNA.NormallyClosedNR60NKHKNK5KHAHK PENT.NO.IDENTIFICATION/DESCRIPZIONISOIATIONBOUNDARYMAXIMUMMAXIMUMISOZATIONISOZATIONISOIATIONTIME.*(SEC)BOUNDARYTIME*(SEC)40l402403404l000MainsteamfrcmAS/GMainsteamfranBS/GFeedwaterlinetoAS/GFeedwaterlinetoBS/GPersonnelHatch2000EquipmntHatch"Themaximumisolationtimdoesnotincludedieselstarttime.*~ZheMSIVsandfeedwaterisolationvalvesarenotconsideredtobecontainmentisolationvalves.Thecontainmentboundaryisthesteamgeneratorsecondarysideandtubes.MV-ManualValveK)V-MotorOperatedValveAOV-AirOperatedValveCV-CheckValveSOV-SolenoidOperatedValve (10)(11)(12)(13)Thepressuretransmitterprovidesaboundary.'pNormallyoperatingincomingandoutgoinglineswhichareconnectedtoclosedsystemsinsidecontainmentandprotectedagainstmissilesthroughouttheirlength,areprovidedwithatleastonemanualisolationvalveoutsidecontainment(FSAR5.2.2pg.5.2.2-2).Thesingleremotelycontrolledcontainmentisolationvalveisnormallyopenandmotoroperated.Thecoolingwaterreturnlineisnotdirectlyconnectedtothereactorcoolantsystemand,shouldremainopenwhilethecoolantpumpisrunning.Asecondautomaticisolationbarrierisprovidedbythecomponentcoolingwaterloop,aclosedsystem.(FSAR5.2.2pg.5.2.2-1a)SeeFSARTable5.2.2-1andFigure5.2.2-2.Sumplinesareinoperationandfilledwithfluidfollowing.anaccident.Containment,leakagetestingisnotrequired.ThevalvesaresubjectedtoRHRsystemhydrostatictest.(14)NormallyoperatingoutgoinglinesconnectedtotheReactorCoolantSystemareprovidedwithatleastoneautomaticallyoperatedtripvalveandonemanualisolationvalveinserieslocatedoutsidethecontainment.lnadditiontotheisolationvalves,eachlineconnectedtotheReactorCoolantSystemisprovidedwitharemoteoperatedrootvalvelocatednearitsconnectiontotheReactorCoolantSystem.(FSAR5.2.2pg.5.2.2-1)(15)(16)SeeFSARTable5.2.2-1andFigure5.2.2-17.TheServiceWatersystemoperatesatapressurehigherthanthecontainmentaccidentpressureandismissileprotectedinsidecontainment.Therefore,thesevalvesareusedforflowcontrolonlyandneednotbeleaktested.(17)AmanualvalveoutsidecontainmentinserieswithanautomaticvalveisprovidedfornormallyoperatingoutgoingRCSlines(FSARpg.5.2.2-1).(18)FireServiceWaterwillbeusedonlytofightfiresinsidecontainment.AOV9227isclosedduringpoweroperation.Acontainmentisolationsignaltoautomaticallyclosethisvalveisnotrequiredbecauseaspurioussignalduringafiremaybehazardoustopersonnelandmayimpedefiresuppressionactivities.(19)SeeFSARTable5.2.2-1andFigure5.2.2-16.(20)ContainmentleakagetestingisnotrequiredperL.D.White,Jr.lettertoDennisL.Ziemann,USNRCdatedSeptember21,1978.3.6-10

(21)Acceptableisolationcapabilityisprovidedforinstrumentlinesbytwoisolationboundariesoutsidecontainment.OneoftheboundariesoutsidecontainmentmaybeaSeismicClass1closedsystemwhichissubjectedtoTypeCleakratetesting.I3.6-11 AttachmentBTheproposedchangeswillrevisethecontainmentisolationvalvetable,TechnicalSpecificationTable3.6-1,toincorporateplantsystemmodifications.Penetration318,thedeadweight.tester,isnolongerusedforcalibrationofpressurizerinstrumentation.'Decommissioningthepenetrationwithcapsbothinsideandoutsidethecontainmentnearthecontainmentwallprovidesasecuremeansofpreventingcontainmentleakage.Removingthevalveoutsidecontainmentandreplacingitwithacapreducesthepotentialforlineleakageandeliminatestheneedfortestingavalveandlinewhichisnotused'hismodificationwasperformedafterTable3'-1wassubmittedforNRCapprovalbutbeforethetablewasincorpratedintheTechnicalSpecifications.ThemeansofdecommissioningthistubingpenetrationwasdiscussedwiththeNRCStaffandverbalapprovalwasgiveninNovember1980.Themodifiedconfigura-tionisconsistentwithotherpenetrationsnotin.servicewhichhavebeenpreviouslyapprovedbytheStaff.Penetration332,leakagetestinstrumentationlines,istobemodifiedforinstallationofthecontainmenthydrogenmonitorsrequiredbyNUREG-0737.Leakagefromthelinesinthepenetrationinitsexistingconfigurationispreventedbyacapinsidecontainmentandnormallyclosedmanualvalvesoutsidecontainment.Thisconfigurationwasacceptablefornormaloperationbecausethelineswereopenedforuseonlyduringintegratedleakratetestsofthecontainment.In.themodifiedconfiguration,thecapswillberemovedinsidethecontainmenttoallowuseofthelinesinpostaccidentconditionsformonitoringcontainmenthydrogenconcentrations.Anacceptablemethodofisolatingthispenetrationistoprovideanisolationvalveoneachofthethreetubinglinesbothinsideandoutsidecontainment.Thisconfigurationtendstoreducethereliabilityofthehydrogenmonitorswhichrequirebothseriesvalvesinthesuctionandreturnlinestobeopentoenablesamplingofthecontainment,atmosphere.Limitationswithinthecontainmentisolationvalverelayracksalsoprohibitedaddingsixadditionalisolationvalves,atleastuntiltwonewisolationrelayrackcabinetsareaddedtotheplant.AnotheracceptablemethodofisolatingtheselinesistoprovideadesignwhichmeetstheguidelinesofRegulatoryGuide1.11andInstrumentSocietyofAmerica(ISA)standardS67.02-1980,Nuclear-Safety-RelatedInstrumentSensingLinePipingandTubingStandardsForUseinNuclearPowerPlants.Compliancewiththecriteriaofthesedocumentsassurethatthedesignisacceptableon"someotherdefinedbasis"asallowedbyGeneralDesignCriterion56,thecriterionapplicabletolinespenetratingthecontainmentwhichareconnecteddirectlytothecontainmentatmos'phere.Thedeadlineimposedforinstallationofthehydrogenmonitors hasnotallowedsufficienttimetocompletetheanalysisrequiredtodemonstratethatthereleaseratethroughtheas-designedtubingsystemwillbesufficientlylimitedtomeet.l0CPRPart100doselimitationsandthattheflowratewillstillbehighenoughtoallowproperfunctioningofthemonitors.Analternativedefinedbasisforisolationofthesetubinglinesistoprovideredundant,seismicallydesignedbarriersoutsidecontainmentwhichwillbeprotectedfromtheeffectsofeventsinsidecontainmentwhichrequirecontainmentisolation.Appropriateisolationbarrierstomeetthiscriterionincludeadministrativelycontrolledclosedmanualvalves,closedremotemanualisolationvalves,tubecapsandseismicallydesignedclosedsystemoutsidecontainment.Specifically,thetubebranchlineswhichservetheleaktestinstrumentation(usedonlyperiod-icallyduringoutages)willhaveaclosedmanualvalveineachlinenearcontainmentandeachlinewillbedisconnectedandcappednearthevalve.Branchlinesservingthehydrogenmonitorswillhaveonenormallyclosedremotemanualisolationvalve;alsoclosetothecontainmentwall.EachhydrogenmonitorhasbeendesignedandinstalledtomeetSeismicClassIcriteriaandwillbeleaktestedtoAppendixJTypeCstandards.Littleadditionalprotectionisprovidedbylocatingoneofthebarriersinsidecontainmentifbothbarriersoutsidecontainmentareprotectedagainstthedynamiceffectsofeventswhichrequireisolation'lantsafetyisenhancedbymakingthehydrogenmonitorsavailableforusefollowingLOCAs.Therefore,isolationofthispenetrationbytwobarriersineachtubinglineoutsidecontainmentprovidesacceptableprotectionagainstleakage.Penetration307,fireservicewater,hastwoisolationvalves,checkvalve9229insidecontainmentandAOV9227outsidecontainment.Containmentisolationcriterianormallyrequirealockedclosedvalveoranautomaticvalveoutsidecontainment.AOV9227isnormallyclosedduringpoweroperation,haspositionindicationandtamperindicationinthecontrolroomandisremotemanuallycontrolledfromthecontrolroom.AOV9227currentlygetsacontainmentisolationsignal.NeproposetoremovethesignalafterNRCapproval.Theonlytimethisvalvewillbeopenduringpoweroperationisduringafireinsidecontainment.Underthesecircumstances,itispossiblethatthefirecoulddamagetransmittersorcableswhichcouldgenerateacontainmentisolationsignalandsubsequentlycausealossoffirewatertothefirefightersinsidecontainment.Thepotentialhazardtothefirefightersisanunacceptablepersonnelriskandisagreaterriskthanthatposedbyapotentialleakagepaththroughredundant.normallyclosedvalvesfollowingaLOCA.

3BothpositionindicationandtamperindicationinthecontrolroomprovideadequateassurancethatAOV9227willbeclosedfollowingeventswhichrequirecontainmentisolationwithoutrequiringanautomaticclosuresignaloralockonthevalve.Alockedvalvemayinhibitquickfirebrigadeaction.Therefore,checkvalve9229andnormallyclosedAOV9227with'amperindicationprovideadequateprotectionofpublichealthandsafetythroughsome"otherdefinedbasis"asallowedbyGeneralDesignCriteria56.Therefore,theproposedtechnicalspecificationchangeswillnotresultinsignificantincreasesinpotentialcontainmentleakagenorincreasetheallowablecontainmentlea'kage.