ML17331A519
| ML17331A519 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/10/1980 |
| From: | INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | |
| Shared Package | |
| ML17331A518 | List: |
| References | |
| AEP:NRC:00449, AEP:NRC:449, NUDOCS 8012180317 | |
| Download: ML17331A519 (29) | |
Text
ATTACHMENT2TOAEP:NRC:00449ProposedTechnicalSpecificationsChangesforUnit1 PLANTSYSTEMS~'%URVEILLANCEREUIREMENTSb.4.Verifyingthateachautomaticvalveintheflowpathisinthefullyopenpositionwhenevertheauxiliaryfeedwatersystemisplacedinautomaticcontrolorwhenabove10ÃRATEDTHERMALPOWER.Atleastonceper18monthsduringshutdownby:l.VerifyingthateachautomaticvalveintheflowpathactuatestoitscorrectpositionuponreceiptoftheappropriateEngineeredSafetyFeaturesactuationtestsignalrequiredbySpecification3/4.3.2.2.VerifyingthateachauxiliaryfeedwaterpumpstartsasdesignedautomaticallyuponreceiptoftheappropriateEngineeredSafetyFeaturesactuationtestsignalrequiredbySpecification3/4.3.2.D.C.COOK-UNIT13/47-6 nTABLE3.3-3ENGINEEREDSAFETYFEATUREACTUATIONSYSTEHINSTRUHENTATION~~CDCD7'FUNCTIONALUNITSAFETYINJECTION,FEEDWATERISOLATIONANDMOTORDRIVENAUXILIARYFEEDWATERPUHPSa.HanualInitiationb.AutomaticActuationLogicc.Containment'ressure-High.d.PressurizerPressure-Lowe.DifferentialPressureBetweenSteamLines-HighFourLoopsOperatinqThreeLoopsOperatingTOTALNO.CHANNELSOFCHANNELSTOTRIPHINIMUHCHANNELSOPERABLE2222.3n4e22,23/steamline3/operating,steamline2/steamline2/steamlineanysteamline1/steam2/operatingline,anysteamlineoperatingsteamline'PPLICABLEHODESACTIONI)*141,2',34-i141,2,31,2,3N15\.,1,2,3,4I1&1,2N3N4'3 TABLE3.3-3Cont'd.ENGINEEREDSAFETYFEATUREACTUATIONSYSTEMINSTRUMENTATIONFUNCTIONALUNIT6.MOTORDRIVENAUXILIARYFEEDWATERPUMPSTOTALNO.CHANNELSOFCHANNELSTOTRIPMINIMUMCHANNELSOPERABLEAPPLICABLEMODESACTIONa.SteamGeneratorWaterLevel-Low-Low2/Stm.Gen.3/Stm.Gen.AnyStm.Gen.2/Stm.Gen.1,2,314*b.4kvBusLossofVoltagec.SafetyInjectiond.LossofMainFeedwaterPumps2/Bus2/Bus22/Bus1,2,31,2,31,2,3le~~14'k7.TURBINEDRIVENAUXILIARYFEEDWATERPUMPS.a.SteamGeneratorWaterLeyel-Low-low2/Stm.Gen.2/Stm.Gen.3/Stm.Gen.Any2Stm.Gen..1,2,3.b.'.ReactorCoolantPumpBusUndervoltage4-1/Bus21,2,3148.LOSSOFPOWERa.4kvBusLossofVoltageb.4kvBusDegradedVoltage3/Bus3/Bus2/Bus2/Bus2/Bus2/Bus1,2,3,41,2,3,414*
0~~
4nTABLE3.3-4ENGIHEEREOSAFETYFEATUREACTUATIOSYSTEMINSTRUMENTATIONTRIPSETPOINTSnCDCDIFUNCTIONALUNIT1.SAFETYItWECTION,FEEDMATERISOLATIONANDMOTORDRiVENAUXILIARYFEEDWATERPUMPSa.ManualInitiationTRIPSETPOINTNotApplicableALLOWABLEVALUENotApplicableb.AutomaticActuationLogicc.ContainmentPressure-lligh,d.PressurizerPressure--Lowe.Differentia'lPressureBetweenSteamLines-llighf.SteamFlowinTwoSteamLines-llighCoinc~dentwithTav-Low-Low..orSteamLinePressure-3owNotApplicable\<1.1psig>1815psig<100psiNotApplicable..<1.2psig~'1805psig~a,'.i<112psi<1.42x10lbs/hrfromOXloadto20$load.Li~earfromi1.42x10lbs/hrat6205loadto3.88x.10lbs/hratlOOXloadT>541'F>MOpsigsteamlinepressurea-~<1.56x10lbs/hrfromOXloadto20Kload.Li~earfrom).56x10lbs/hrat620Xloadto3.93x10lba/hrat100Cload.'T>539'F>3IIOpsigsteamlinepressure~Ia/
TABLE3.3-4Cont'd.ENGINEEREDSAFETYFEATUREACTUATIONSYSTEMINSTRUMENTATIONTRIPSETPOINTSn'DCDFUNCTIONALUNIT6.MOTORDRIVENAUXILIARYFEEDWATERPUMPSa.SteamGeneratorWaterLevel-Low-Lowb.'4kvBusLossofVoltagec.SafetyInjectiond.LossofMainFeedwaterPumpsTRIPSETPOINT>105ofnarrowrangeTnstrumentspaneachsteamgenerator3196voltswitha2-seconddelayNotApplicableNotApplicableALLOWABLEVALUES>9CofharrowrangeTnstrumentspaneachsteamgenerator3196+18voltswitha2a.2seconddelayNotApplicableNotApplicable7.TURBINEDRIVENAUXILIARYFEEDWATERPUMPSa.SteamGeneratorWaterLevel-Low-Lowb.ReactorCoolantPumpBusUndervoltage>lOXofnarrowrangeinstrumentspaneach'teamgenerator>2750Volts-eachbus>9XofnarrowrangeTnstrumentspaneachsteamgenerator~>2725Volts-eachbus8.LOSSOFPOWERa..4kvBusLossofVoltageb.4kvBusDegradedVoltage3196voltswitha2-seconddelay3596voltswitha2.0min.timedelay3196a18voltswitha2a.2seconddelay3596a18voltswitha2.0minutea6secondtimedelay TABLE3.3-5ContinuedENGINFEREDSAFETYFEATURESRESPONSETIMESINITIATINGSIGNALANDFUNCTION6.SteamFlowinTwoSteamLines-HighCoincidentwithSteamLinePressure-LowRESPONSETIMEINSECONDSa0b.Ced.e.9~h.SafetyInjection(ECCS)ReactorTrip{fromSI)Fe'edwaterIsolationContainmentIso1ation-Phase"A"ContainmentPurgeandExhaustIsolationAuxiliaryFeedwaterPumpsEssentialServiceWaterSystem.SteamLineIsolation<13.0Pr/23.Pg"<3.0<8.0<18.0f/28.0ÃPNotApplicableHotApplicable<14.0$/48.04'8.07.ContainmentPressure-Hih-Hiha.ContainmentSprayb.ContainmentIsolation-phase"8"c.SteamLineIsolationd.ContainmentAirRecirculationFan<45.0NotApplicable<7.0<660.08.SteamGenerato~WaterLevel--Hih-Hiha.TurbineTrip-ReactorTripb.'eedwaterIsolation~r9.SteamGeneratorWaterLevel-Low-Low<2.5<11.0a.-MotorDrivenAuxiliaryFeedwaterPumps<60.0b.TurbineDrivenAuxiliaryFeedwaterPumps<&0.010.4160voltEmergencyBusLossofVoltagea.MotorDrivenAuxiliaryFeedwaterPumps<60.011.LossOfMainFeedwaterPumsa.MotorDrivenAuxiliaryFeedwaterPumpsc60.012.ReactorCoolantPumBusUndervolta'ea.TurbineDrivenAuxi'liaryFeedwaterPumps<60.0D.C.COOK-UNIT13/43-29 TABLE4.3-2'LENGINEEREDSAFETYFEATUREACTUATIONSYSTEttINSTRUttENTATIONURELNCEREUIRENElTCDC)IFUNCTIONALUNITl1.SAFETYINECTION,FEEDlQTERISOLATIONANDMOTORDRIVENIAUXIL'IARYFEEDWATERPUt1PSa.HanualInitiationb.AutomaticActuationLogicc.ContainmentPressure-tlighd.PressurizerPressure--Lowe.DifferentialPressureBetweenSteamLines--Highf.SteamFlowinTwoSteamLines-HighCoincidentwithT-LoworSteamLinePQksure-Low2.CONTAINt1ENTSPRAYCHANNELCHECKtt.A.N.A.CHANNELCALIORATIONN.A.tl.A.CHANNELFUNCTIONALTEST~t1{l)tl(2).N(3)HODESINHHICHSURVEILLANCEREltIRED1,2,3,41,2,3,41,2.31,.2,31,2,3'I1,2,3a.manualInitiationb.AutomaticActuation.Logicc.ContainmentPressure-High-HighN.A..N,A.SN.AM{1)tl.A.'l{2)-1,2,3,41,2,3,41,2,3 TABLE4.3-2-ContinuedEHGIHEEREOSAFETYFEATUREACTUATIOHSYSTEMINSTRUMENTATIONREIELA~E~fflLMNTnC)ICIFUNCTIONAIUNITSTEANLINEISOLATIONa.Manualb.C~AutomaticActuationLogic.ContainmentPressure-High-HighCHANNELCHECKH.A.H.A.CHANNELCALIBRATIONN.A.H.A.CHANNELFUHCTIOHALTESTH(2)H(3)NODESINWHICH-.-SURVEILLANCE-'EUIRED1,2;31,2,31,2,3.~d.SteamFloeinTwoSteam;-SLines-HighCoincidentwithT--LoworSteamLinePAksure-Low5.'URBINETRIPANOFEEOWATERISOLATIONa.SteamGeneratorWaterLevel--High-High6.MOTORDRIVENAUXILIARYFEEOWATERPUMPSa.SteamGeneratorMaterSLevel--Low-Low,b.4kvBusLossofVoltage~-y1,2,3,1,.2,31,2;31,2,3gg~c.SafetyInjection,~d.LossofHainFeedPumpsAaN.A.N.A.N.A..H(2)N.A.1,2,31,2,3 TABLE4.3-2ContinuedIENGINEEREDSAFETYFEATUREACTUATIONSYSTEMINSTRUMENTATIONSURVEILLANCEREUIREMENTSFUNCTIONALUNIT7.TURBINEDRIVFNAUXILIARYFEEDWATERPUMPSCHANNELCHECKCHANNELCALIBRATIONCHANNELFUNCTIONALTESTMODESINWHICHSURVEILLANCE~REIIIRERa~b.SteamGeneratorWaterLevel--Low-LowReactorCoolantPumpBusUndervoltageN.A.RM1,2,31,2,38.LOSSOFPOWERa.4kvBusLossofVoltageb.4kvBusDegradedVoltage1,2,3,41,2,3,4 II INSTRUMENTATIONPOST-ACCIDENTINSTRUMENTATIONLIMITINGCONDITIONFOROPERATION3.3.3.8Thepost-accidentmonitoringinstrumentationchannelsshowninTable3.3-11shallbeOPERABLE.APPLICABILITY:MODESl,2and3.ACTION:a.WiththenumberofOPERABLEpost-accidentmonitoringchannelslessthanrequiredbyTable3.3-11,eitherrestoretheinoperablechanneltoOPERABLEstatuswithin30days,orbeinHOTSHUTDOWNwithinthenext12hours.b.TheprovisionsofSpecification3.0.4arenotapplicable.SURVEIlLANCEREUIREMENTS4.3.3.8Eachpost-accidentmonitoringinstrumentationchannelshallbedemonstratedOPERABLEbyperformanceoftheCHANNELCHECKandCHANNELCALIBRATIONoperationsatthefrequenciesshowninTable4.3-7.D.C.'OOK-UNIT1 TABLE3.3-11POST-ACCIDENTMONITORINGINSTRUMENTATIONINSTRUMENTMINIMUMCHANNELSOPERABLE-1.ContainmentPressure2.ReactorCoolantOutletTemperature-THOT(WideRange)3.ReactorCoolantInletTemperature-TCOLD(WideRange)4.ReactorCoolantPressure-WideRange5.PressurizerWaterLevel6.SteamLinePressure7.SteamGeneratorWaterLevel-NarrowRange8.RefuelingWaterStorageTankWaterLevel9.BoricAcidTankSolutionLevel10.AuxiliaryFeedwaterFlowRate11..ReactorCoolantSystemSubcoolingMarginMonit6r12.PORVPositionIndicator-LimitSwitches***13.PORVBlockValvePositionIndicator-LimitSwitches14.SafetyValvePositionIndicator-AcousticMonitor2/SteamGenerator1/SteamGenerator21/SteamGenerator"1/Valve1/Valve1/Valve*SteamGeneratorWaterLevelChannelscanbeusedasasubstituteforthecorrespondingauxiliaryfeedwaterflowratechannelinstrument.**PRODAC250subcoolingmarginreadoutcanbeusedasasubstituteforthesubcoolingmonitorinstrument.***AcousticmonitoringofPORVposition(1channelperthreevalves-headereddischarge)canbeusedasasubstituteforthePORVPositionIndicator-L>mitSwitchesinstruments.
~AAC)~C)~7CINSTRUMENTTABLE4.3-7POST-ACCIDENTMONITORINGINSTRUMENTATIONSURVEILLANCEREUIREMENTSCHANNELCHECKCHANNELCALIBRATIONCa)ICJl1.ContainmentPressure2.ReactorCoolantOutletTemperature-THOT(WideRange)3.ReactorCoolantInletTemperature-TCOLD(WideRange)4.ReactorCoolantPressure-WideRange5.PressurizerWaterLevel6.SteamLinePressure7.SteamGeneratorWaterLevel-NarrowRange8.RWSTWateiLevel9.BoricAcidTankSolutionLevel10.AuxiliaryFeedwaterFlowRatell.ReactorCoolantSystemSubcoolingMarginMonitor12.PORVPositionIndicator-LimitSwitches13.PORVBlockValvePositionIndicator-LimitSwitches14.SafetyValvePositionIndicator-AcousticMonitorMMR~
REACTORCOOLANTSYSTEMPRESSURIZERLIMITINGCONDITIONFOROPERATION3.4.4ThepressurizershallbeOPERABLEwithawatervolumelessthanorequalto624ofspanandatleast150kWofpressurizerheaters.APPLICABILITY:MODES1and2ACTION'Withthepressurizerinoperableduetoaninoperableemergencypower.supplytothepressurizerheaterseitherrestoretheinoperableemergencypowersupplywithin72hoursorbeinatleastHOTSTANDBYwithinthenext6hoursandinHOTSHUTDOWNwithinthefollowing12hours.Withthepressurizerotherwiseinoperable,beinatleastHOTSTANDBYwiththereactortripbreakersopenwithin6hours.SURVEILLANCEREUIREMENTS4.4.4.1Notapplicable.4.4.4.2TheemergencypowersupplyforthepressurizerheatersshallbedemonstratedOPERABLEatleastonceper18monthsbytransferringpowerfromthenormaltotheemergencyposersupplyandenergizingtherequiredcapacityofheaters.D.C.COOK-UNIT13/44-6 REACTORCOOLANTSYSTEM~RELIEFVALVES-OPERATINGLIMITINGCONDITIONFOROPERATION3.4.11ThreePowerOperatedReliefValves(PORVs)andtheirassociated,blockvalvesshallbeOPERABLE.APPLICABILITY:MODES1,2and3ACTION:a~b.C.d.WithonePORVinoperable,within1houreitherrestorethePORVtoOPERABLEstatusorclosetheassociatedblockvalveandremovepowerfromthe'blockvalve;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.TheprovisionsofSpecifications6.9.1:9,3.0.3and3.0.4arenotapplicable.WithtwoormorePORVsinoperable,within1houreitherrestorethePORVstoOPERABLEstatusorclosetheassociatedblockvalvesandremovepowerfromtheblockvalves;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.Withoneblockvalveinoperable,within1houreither(1)restoretheblockvalvetoOPERABLEstatusor(2)closetheblockvalveandremovepowerfromtheblockvalveor(3)closetheassociatedPORVandremovepowerfromitsassociatedSolenoidvalve;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.TheprovisionsofSpecifications6.9.1.9,3.0.3and3.0.4arenotapplicable.Withtwoormoreblockvalvesinoperable,within1houreither(1)restoretheblockvalvestoOPERABLEstatusor(2)closetheblockvalvesandremovepowerfromtheblockvalvesor(3)closetheassociatedPORVsandremovepowerfromtheirassociatedSolenoidvalves;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.SURVEILLANCEREUIREMENTS4.4.11.1EachofthethreePORVsshallbe'demonstratedOPERABLE:a.Atleastonceper31daysbyperformanceofaCHANNELFUNCTIONALTEST,excludingvalveoperation,andb.Atleastonceper18monthsbyperformanceofaCHANNELCALIBRATION.D.C.COOKUNITl3/44-41 SURVEILLANCEREUIREMENTSCont'd'4.4.11.2EachofthethreeblockvalvesshallbedemonstratedOPERABLEatleastonceper92daysbyoperatingthevalvethroughonecompletecycleoffulltravel.TheprovisionsofSpecification4.0.4arenotapplicablewhenActions3.4.ll.aor3.4.ll.careapplied.4.4.11.3TheemergencypowersupplyforthePORVsandblockvalvesshallbedemonstratedOPERABLEatleastonceper18monthsbyoperatingthevalvesthrough'completecycleoffulltravelwhiletheemergencybusesareenergizedbytheon-sitedieselgeneratorsandon-siteplantbatteries.This'testingcanbeperformedinconjunctionwiththerequirementsofSpecifications4.8.1.1.2.band4.8.2.3.2.c.D.C.COOKUNIT33/44-42 34.0APPLICABILITYSURVEILLANCEREQUIRB"ENTSContinuedb.Atotalmaximumccmbinedintervaltimeforany3consecutivesurvei11anceinterva1snottoexceed3.25timesthespecifiedsurveillanceinterval.4.0.3Perfor,anceofaSurveillanceRequirerentwithinthespcifiedtimeintervalshallconstitutecompliancewithOPERABILITYrequirementsforaLimitingConditionforOperationandassociatedACTIONstatementsunlessotherwiserequiredbythespecification.Surveil'lanceRequil.ementsdonothavetobe~elformedoninoperableequipment.4.0.4Entryin.oanOPERATIONALMQOEorotherspecifiedapplicabilityconditionshallnotberadeunlessiheSurveillanceRe.!ire-:.,en.(s)associatedwiththeLimitingConditionforOperationhavebeenperfor.-..edwithinthestatedsurveillanceintervalorasotherwisespecified.TheprovisionsofSpeciication4.0.4arenotapplicabletotheper-formanceofsurveillanceativitiesassociatedwithfireprotectiontechnicalspeci-ications,4.3.3.7,4.7.9and4.7.1Q,untilthecompletionoftheinitialsurveillanceintervalassociatedwitheachspecification.0.C.COOK-Uib?T13(40-2
i~~~VALVENUMBER.A.PHASE"A"ISOLATIONFUNCTIONContinuedTABLE3.6-1ContinuedITESTABLEDURINGISOLATIONTIHE:--PLANTOPERATION'HSECONDS(l57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74,75.l.2.3.5.6.7.t/CR-107tlCR-108tlCR-109tlCR-110-HCR-252QCN-250QCH-350OCR-300QCR-301RCR-100RCR-101VCR-10VCR-11VCR-20VCR-21XCR-100XCR-101XCR-102XCR-103PllASE"B"ISOLATIONCCH-451CCt1-452CCH-453CCfl-454CCH-458CCH-459ECR-31ECR-32PRZLiquid'SamplePRZLiquidSamplePRZSteamSamplePRZSteamSamplePrimaryWatertoPressurizerReliefTank'CPSealHaterDischargeRCPSealWaterDischargeLeMo<<ntoLetdownNx.LetdowntoLetdownHx..PRZReliefTanktoGasAnal.PRZReliefTank.toGasAnal.GlycolSupplytoFahCoolerGlycolSupplytoFanCoolerCilycolSupplyfromFan.CoolerGlycolSupplyfromFanCooler.ControlAirtoContainmentControlAirtoContainmentIsolationControlAirtoContainmentIsolationControlAirtoContainmentCCWfromPCPOilCoolersCCWfromRCPOilCoolersCCWfromRCPThermalBarrierCCWfromRCPTliermalBarrierCCHtoRCPOilCoolers8ThermalBarrierCCHtoRCPOilCoolersLThermalBarrier.ContainmentAirParticleRadioGasDetectorContainmentAirParticleRadioGasDetectorYesYesYesYesYesHoHoHoHoYesYesYesYesYes.Yestlotlo'o-HoIwHoHoHotloHo~Ho'oHo101010101015151010101010101010101010106060303060601010IIIi~Ij4p(x)Ii~1l'iI ljI TABLE6.2-1MINIMUMSHIFTCREWCOMPOSITIONSLICENSECATEGORY'OLOLNON-LicensedShiftTechnicalAdvisor1,2,3&45&6NoneReuiredAPPLICABLEMODESWoes,notincludethelicensedSeniorReactorOperatororSeniorReactorOperatorLimitedtoFuelHandling,supervisingCOREALTERATIONSaftertheinitialfuelloading.fShiftcrewcompositionmaybelessthantheminimumrequirementsforaperiodoftimenottoexceed2hoursinordertoaccoraradate'nexpectedabsenceofondutyshiftcrewmembersprovidedioxradiateactionistakentorestoretheshiftcrewcompositiontowithintheminimumrequirementsofTable6.2-1.",*SharedWithD.C.COOK-UNIT2.O.,C.COOK-UNIT16-4AmendmentNo.~g)
AOMINISTRATIVECONTROLS6.3FACILITYSTAFFUALIFICATIONS~-3.1EachmemberofthefacilitystaffshallmeetorexceedtheminimumqualificationsofANSINQ.1-1971forcomparablepositiorrs,exceptfur(1)theRadiationProtectionSupervisor.whoshallmeetorexceedthequalificationsofRegulatoryGuide1.8,September1975and(2)theShiftTechnicalAdvisorwhoshallhaveabachelor'sdegreeorequivalentinascientificorengineeringdisciplinewithspecifictraininginplantdesign,andanalysisoftheplantfortransientsandaccidents.~6.4TRAINING6.4.1AretrainingandreplacementtrainingprogramforthefacilitystaffshallbemaintainedunderthedirectionoftheTrainingCoordinatorandshallmeetorexceedtherequirementsandrecommendationsofSection5.5ofANSIN18.1-1971andAppendix"A"of10CFRPart55,6.4.2AtrainingprogramfortheFireBrigadeshallbemaintainedunderthedirectionofthePlantManagerandshallmeetorexceedtherequire-mentsofSection27oftheNFPACode-1976.6.5REVIDANOAUOIT6.5.1PLANTNUCLEARSAFETYREVIEWCOMMITTEEPNSRCFUNCTION6.5.1.1ThePNSMshallfunctiontoadvisethePlantManageronall'attersrelatedtonuclearsafety.FulcompliancebyJanuary1,1981*O.C.COOK-UNIT16-5AmendmentNo.
INSTRVMiENTATIONBASES3/4.3.3.7FIREDETECTIONINSTRUMENTATIONOPERABILITYofthefiredetectioninstrumentation.ensuresthaiadequatewarningcapabilityisavailablefortheprcmptdetectionoffires.Thiscapabilityisrequiredinordertodetectandlocatefiresintheirerlvstages.Promptdetectionoffireswillreduceth.poten-tia'1forda.agetosafetyrelatedequipmentandisanintegralelementintheoverall,acilityfireprotectionprogram.Intheeventthataportionofthefiredetectioninstruentationisinoperable,tieestablisn.-.,entoffrequentfirepatrolsintheaffectedareasisrequiredtoprovidedetectioncapabilityuntiltheinoperableinstrumentationisrestoredtoOPERABILITY.34.3.3.8POST-ACCIDENTINSTRUMENTATIONTheOPERABILITYofthepost-accidentinstrumentationensuresthatsufficientinformation.isavailableonselectedplantparameterstomonitorandassess'hesevariablesduringandfollowinganaccident.D.C.COOK-UNIT1B3/43-4 REACTORCOOLANTSYSTEMBASES3/4.4.4PRESSURIZER'steambubbleinthepressurizerensuresthattheRCSisnotahydraulicallysolidsystemandiscapableofaccommodatingpressuresurgesduringoperation.Thesteambubblealsoprotectsthepressurizercodesafetyvalvesandpoweroperatedreliefvalvesagainstwaterrelief.ThepoweroperatedreliefvalvesandsteambubblefunctiontorelieveRCSpressureduringalldesigntransientsuptoandincludingthedesignsteploaddecreasewithsteamdump.Operationofthepoweroperated'eliefvalvesminimizestheundesirableopeningofthespring-loadedpressurizercodesafetyvalves.Therequirementthat150Klrlofpressurizerheatersandtheirassociatedcontrolsbecapableofbeingsuppliedelectricalpowerfromanemergencybusprovidesassurancethattheseheaterscanbeenergizedduringalossofoffsitepowerconditiontomaintainnaturalcirculationconditions.34.4.5STEAMGENERATORSeurvesanceequirementsforinspectionofthesteamgeneratortubesensurethatthestructuralintegrityofthisportionoftheRCSwillbemaintained.TheprogramforinserviceinspectionofsteamgeneratortubesisbasedonamodificationofRegulatoryGuide1;83,Revisionl.Inserviceinspectionofsteamgeneratortubingisessentialinordertomaintainsurveillanceoftheconditionsofthetubesintheeventthatthereisevidenceofmechanicaldamageorprogressivedegradationduetodesign,manufacturingerrors,orin'serviceconditionsthatleadtocorrosion.Inserviceinspectionofsteamgeneratortubingalsoprovidesameansofcharacterizingthenatureandcauseofanytubedegradationsothatcorrectivemeasurescanbetaken.Theplantisexpectedtobeoperatedinamannersuchthatthesecondarycoolantwillbemaintainedwithinthoseparameterlimitsfoundtoresultinnegligiblecorrosionofthesteamgeneratortubes.Ifthesecondarycoolantchemistryisnotmaintainedwithintheseparameterlimits,localizedcorrosionmaylikelyresultinstresscorrosioncracking.Theextentofcrackingduringplantoperationwouldbelimitedbythelimitationofsteamgeneratortubeleakagebetweentheprimarycoolantsystemandthesecondarycoolantsystem(primary-to-secondaryleakage=500gallonsperdaypersteamgenerator).Crackshavingaprimary-to-secondaryleakagelessthanthislimitduringoperationwillhavean0.C.COOK-UNIT1B3/44-2
REACTORCOOLANTSYSTEMBASEStheASIDEBoilerandPressureVesselCode"InserviceInspectionofNuclearReactorCoolantSystems",1971EditionandAddendathroughMinter1972.Allareasscheduledforvolumetricexaminationhavebeenpre-servicemappedusingequipment,techniquesandproceduresanticipatedforuseduringpost-operationexaminations.Toassurethatconsiderationisgiventotheuseofneworimprovedinspectionequipment,techniquesandprocedures,theInserviceInspectionProgramwillbeperiodicallyreviewedona5yearbasis.Theuseofconventionalnondestructive,directvisualandremotevisualtesttechniquescanbeappliedtotheinspectionofmostreactorcoolantloopcomponentsexceptthereactorvessel.Thereactorvesselrequiresspecialconsiderationbecauseoftheradiationlevelsandtherequirementforremoteunderwateraccessibility.Thetechniquesanticipatedforinserviceinspectionincludevisual.inspections,ultrasonic,radiographic,magneticparticleanddyepenetranttestingofselectedparts.Thenondestructivetestingf'rrepairsoncomponentsgreaterthan2inchesdiametergivesahighdegreeofconfidenceintheintegrityofthesystem,andwilldetectanysignificantdefectsinandnearthenewwelds.Repairsoncomponents2inchesindiameterorsmallerreceiveasurfaceexaminationwhichassuresasimilarstandardofintegrity.Ineachcase,theleaktestwillensureleaktightnessduringnormaloperation.Fornormalopeningandreclosing,thestructuralintegrityoftheReactorCoolantSystemisunchanged.Therefore,satisfactoryperformanceofasystemleaktestat2235psigfollowingeachopeningandsubsequentreclosingisacceptabledemonstrationofthesystem'sstructuralintegrity.Theseleaktestswillbeconductedwithinthepressure-temperaturelimita-tionsforInserviceLeakandHydrostaticTestingandFigure3.4-1.34.4.11RELIEFVALVESThepoweroperatedreliefvalves(PORVs)operatetorelieveRCSpressurebe'lowthesettingofthepressurizercodesafetyvalves.Thesereliefvalveshaveremotelyoperatedblockvalvestoprovideapositiveshutoffcapabilityshouldareliefvalvebecomeinoperable.Theelectrica'lpowerforboththereliefvalvesandtheblockvalvesissuppliedfromanemergencypowersourcetoensuretheabilitytosealthispossible-RCSleakagepath.0.C.COOK-UNIT1B3/44-12