ML17309A576

Rev 12 to EOP ECA-3.3, SGTR W/O Pressurizer Pressure Control.

ML17309A576
Person / Time
Site:	Ginna
Issue date:	04/20/1995
From:	MARLOW T A ROCHESTER GAS & ELECTRIC CORP.
To:
References
ECA-3.3, NUDOCS 9504280026
Download: ML17309A576 (64)

Text

EOP:ECA-).3T1TLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE1of27ROCHESTER GASANDELECTRICCORPORATION GINNASTATIONCONTROLLED COPYNUMBERTECHNICAL REVIEWPORCREVIEWDATEW/'7PLANTSPERINTEDENTEFFECTIVE DATECATEGORY1.0REVIEWEDBY:QO'.9504280026 950420PDRADOCK05000244IPPDR

~Jv'Vh EOP:ECA-3.9IITITLESGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE2of27A.PURPOSE-Thisprocedure providesactionsforaSGTRwithcoincident lossofnormalandauxiliary PRZRspraysandPORVs.B.ENTRYCONDITIONS/SYMPTOMS 1.ENTRYCONDITIONS

-Thisprocedure isenteredfrom:a.E-3,STEAMGENERATOR TUBERUPTURE,whenPRZRpressurecontrolisnotavailable.

V EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE3of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:oFoldoutpageshouldbeopenANDmonitored periodically.

oAdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNMTradiation isgreaterthan10+5R/hr.1CheckRupturedS/GNarrowRangeLevel-LESSTHAN67%[554adverseCNMT]GotoStep8.2CheckRCPStatus-ATLEASTONERUNNINGTrytostartoneRCP:a.Establish conditions forstartingRCP.oBus11AandBusllBenergized oRefertoAttachment RCPSTARTb.StartoneRCP.IFnoRCPcanbestarted,THENgotoStep4.3CheckIFNormalPRZRSprayAvailable:

a.VerifyIAtoCNMT-AVAILABLE a.Performthefollowing:

1)PlacePRZRheatercontrolgrouptoPULLSTOP.2)PlacePRZRheaterbackupgrouptoOFF.3)Placenormalsprayvalvecontrollers toMANUALat0%.b.GotoE-3,STEAMGENERATOR TUBERUPTURE,Step214)GotoStep4.

<</'ll4 EOP:ECA-3.3TITLESGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE4of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED4TryToRestorePRZRPORV:a.Blockvalves-ATLEASTONEOPEN~MOV-516forPCV-430~MOV-515forPCV-431Ca.OpenoneblockvalveunlessitwasclosedtoisolateanopenPORV.IfblockvalvescanNOTbeopened,THENdispatchAOtolocallyensurebreakerstoblockvalvesclosed.b.CheckIAtoCNMT-AVAILABLE c.VerifyatleastonePRZRPORVflowpath-AVAILABLE d.GotoE-3,STEAMGENERATOR TUBERUPTURE,Step22~MOV-515,MCCCposition6C~MOV-516,MCCDposition6Cb.RefertoAttachment N2PORVStooperatePORVs.c.GotoStep5.

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EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE5of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:Ifauxiliary sprayistheonlymeansofRCSpressurecontrol,THENthe320'FATlimitbetweenthespraylineandPRZRdoesnotapply.5TryToEstablish Auxiliary Spray:a.Chargingpumps-ATLEASTONERUNNINGa.Performthefollowing:

1)IFCCWflowislosttoanyRCPthermalbarrierORanyRCP¹1sealoutlettemperature offscalehigh,THENlocallyisolatesealinjection toaffectedRCP.~RCPA,V-300A~RCPB,V-300B2)EnsureHCV-142demandat0%.b.Establish auxiliary sprayflow:1)Openauxiliary sprayvalve(AOV-296) 3)Startchargingpumpsasnecessary.

IFchargingnotavailable, THENgotoStep6.b.IFauxiliary spraycanNOTbeestablished, THENgotoStep6.2)ClosechargingvalvetoloopBcoldleg(AOV-294) c.GotoE-3,STEANGENERATOR TUBERUPTURE,Step21b

/1%hht~WI~tI~J'~:4 EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE6of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONIFCSTLEVELDECREASES TOLESSTHAN5FEET,THENALTERNATE WATERSOURCESFORAFWPUMPSWILLBENECESSARY (REFERTOER-AFW.1)

ALTERNATE WATERSUPPLYTOAFWPUMPS).NOTE:TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*6MonitorIntactS/GLevel:a.Narrowrangelevel-GREATERTHAN5%[25%adverseCNMT]b.Controlfeedflowtomaintainnarrowrangelevelbetween17%[25%adverseCNMT]and50%a.Maintaintotalfeedflowgreaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT)inatleastoneS/G.b.IFnarrowrangelevelinintactS/Gcontinues toincreaseinanuncontrolled manner,THENgotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLED RECOVERYDESIRED,Step1.7CheckPRZRLevel-GREATERTHAN54[304adverseCNMT]ReturntoStepl.

~4A4P EOP:Ec.A-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE7of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED8CheckIfSICanBeTerminated:

a.RCSsubcooling basedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLING b.Secondary heatsink:oTotalfeedflowtoS/GsGREATERTHAN200GPMAVAILABLE

-OR-a.DoNOTstopSIpumps.GotoECA-3',SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLED RECOVERYDESIRED,Step1.b.IFneithercondition satisfied, THENdoNOTstopSIpumps.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLED RECOVERYDESIRED,Step1.oNarrowrangelevelinintactS/G-GREATERTHAN5%[25%adverseCNMT]c.RVLISindication oLevel(noRCPs)-GREATERTHAN68%[73%adverseCNMT]-OR-c.DoNOTstopSIpumps.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLED RECOVERYDESIRED,Stepl.oFluidfraction(anyRCPrunning)-GREATERTHAN80%d.AnyrupturedS/Gnarrowrangelevel-INCREASING INANUNCONTROLLED MANNEROROFFSCALEHIGHd.DoNOTstopSIpumps.ReturntoStep2.

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~'EOP:ECA-3.31T1TLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE8of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED9StopSIPumpsandPlaceInAUTO

~~

EOP:ECA-3.3T!TLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE9of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED10CheckIfChargingFlowHasBeenEstablished:

a.Chargingpumps-ANYRUNNINGb.ChargingpumpsuctionalignedtoRWST:oLCV-112B-OPENoLCV-112C-CLOSEDc.Startchargingpumpsasnecessary andadjustchargingflowtoperformthefollowing:

oRestorePRZRleveloMaintainRCSsubcooling basedoncoreexitT/Cs-GREATERTHANO'FUSINGFIGUREMINSUBCOOLING a.Performthefollowing:

1)IFCCWflowislosttoanyRCPthermalbarrierORanyRCP¹1sealoutlettemperature offscalehigh,THENdispatchAOwithkeytoRWSTgatetoclosesealinjection needlevalve(s)toaffectedRCP:~RCPA,V-300A~RCPB,V-300B2)EnsureHCV-142open,demandat0%.b.Manuallyalignvalvesasnecessary.

IFLCV-112BcanNOTbeopened,THENperformthefollowing:

1)VerifychargingpumpANOTrunningandplaceinPULLSTOP.2)DispatchAOtolocallyopenmanualchargingpumpsuctionfromRWST(V-358locatedinchargingpumproom).3)WHENV-358open,THENdirectAOtocloseV-268toisolatechargingpumpsBandCfromVCT(V-268locatedinchargingpumproom).

~I'4.I',4*4ge'I ECA-3.3TITLESGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE10of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*11MonitorRCSInventory:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLING oRVLISindication oLevel(noRCPs)-GREATERTHAN68%[73%adv'erseCNMT]-OR-Performthefollowing:

a.ManuallyoperateSIpumpsasnecessary.

b.GotoECA-3.1,SGTRWITHLOSSOFREACTORCOOLANT-SUBCOOLED RECOVERYDESIRED,Step1.oFluidfraction(anyRCPrunning)-GREATERTHAN80%12VerifyAdequateSWFlowToCCWHx:a.VerifyatleasttwoSWpumpsRUNNINGb.VerifyAUXBLDGSWisolation valves-OPENa.Manuallystartpumpsaspowersupplypermits(258kwperpump).IFlessthantwoSWpumpscanbeoperated, THENgotoStep20.b.Establish SWtoAUXBLDG(RefertoAttachment AUXBLDGSW).~MOV-4615andMOV-4734~MOV-4616andMOV-4735c.VerifyCNMTRECIRCfanannunciator C-2,HIGHTEMPERATURE ALARM-EXTINGUISHED c.DispatchAOtolocallythrottleflowtoCCWHxtobetween5000gpmand6000gpmtotalflow.

~k44t[~,gag EOP:ECA-3.31'ITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE11of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED13CheckIfNormalCVCSOperation CanBeEstablished a.VerifyIArestored:

oIAtoCNMT(AOV-5392)

-OPENa.ContinuewithStep17.WHENIArestored, THENdoSteps13through16.oIApressure-GREATERTHAN60PSIGb.Verifyinstrument busD-ENERGIZED c.CCWpumps-ANYRUNNINGb.EnergizeMCCB.IFMCCBNOTavailable, THENperformthefollowing:

1)VerifyMCCAenergized.

2)Placeinstrument busDonmaintenance supply.c.Performthefollowing:

1)IFanyRCP81sealoutlettemperature offscalehigh,THENisolateCCWtothermalbarrierofaffectedRCP(s).~RCPA,MOV-749AandMOV-759A~RCPB,MOV-749BandMOV-759Bd.Chargingpump-ANYRUNNING2)ManuallystartoneCCWpump.d.ContinuewithStep20.WHENanychargingpumprunning,THENdoSteps14through17.

pl'14l)\544,t EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE12of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:IfPRZRlevelislessthan13%,letdownmaybeestablished byplacingAOV-427toOPEN.14Establish NormalLetdown:a.Establish charginglineflowtoREGENHx-GREATERTHAN20GPMb.Placethefollowing switchestoCLOSE:~Letdownorificevalves(AOV-200A, AOV-200B, andAOV-202)~AOV-371,letdownisolation valve~AOV-427,loopBcoldlegtoREGENHxc.Placeletdowncontrollers inMANUALat40%open~TCV-130~PCV-135d.ResetbothtrainsofXYrelaysforAOV-371andAOV-427e.OpenAOV-371andAOV-427f.Openletdownorificevalvesasnecessary g.PlaceTCV-130inAUTOat105'Fh.PlacePCV-135inAUTOat250psigi.AdjustchargingpumpspeedandHCV-142asnecessary IFRCPsealreturnhasbeenestablished, THENestablish excessletdownasfollows:oPlaceexcessletdowndivertvalve,AOV-312,toNORMAL.oEnsureCCWfromexcessletdownopen,(AOV-745).

oOpenexcessletdownisolation valveAOV-310.oSlowlyopenHCV-123tomaintainexcessletdowntemperature lessthan195'Fandpressurelessthan100psig.oAdjustchargingpumpspeedasnecessary.

IFRCPsealreturnNOTestablished, THENconsultTSCtodetermine ifexcessletdownshouldbeplacedinservice.

g'sr,lIEF EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE13of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED15CheckVCTMakeupSystem:a.AdjustboricacidflowcontrolvalveinAUTOto9.5gpmb.Verifythefollowing:

1)RMWmodeselectorswitchinAUTOb.Adjustcontrolsasnecessary.

2)RMWcontrolarmed-REDLIGHTLITc.CheckVCTlevel:oLevel-GREATERTHAN20%-OR-oLevel-STABLEORINCREASING c.ManuallyincreaseVCTmakeupflowasfollows:1)EnsureBAtransferpumpsandRMWpumpsrunning.IFNOT,THENresetMCCCandMCCDUVlockoutsasnecessary.

2)PlaceRMWflowcontrolvalveHCV-111inMANUAL.3)IncreaseRMWflow.'

p%AtdQI'~-1k.ip EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE14of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED16CheckChargingPumpSuctionAlignedToVCT:a.VCTlevel-GREATERTHAN20%a.IFVCTlevelcanNOTbemaintained greaterthan5%,THENperformthefollowing:

1)EnsurechargingpumpsuctionalignedtoRWSToLCV-112BopenoLCV-112Cclosed.b.VerifychargingpumpsalignedtoVCToLCV-112C-OPENoLCV-112B-CLOSED2)ContinuewithStep17.WHENVCTlevelgreaterthan40%,THENdoStep16b.b.Manuallyalignvalvesasnecessary.

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4~EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE15of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED17CheckRCPCooling:a.CheckCCWtoRCPs:Establish normalcoolingtoRCPs(RefertoAttachment SEALCOOLING).

oAnnunciator A-7,RCP1ACCWRETURNHIGHTEMPORLOWFLOWEXTINGUISHED ioAnnunciator A-15,RCP1BCCWRETURNHIGHTEMPORLOWFLOWEXTINGUISHED b.CheckRCPsealinjection:

oLabyrinth sealD/Ps-GREATERTHAN15INCHESOFWATER-OR-oRCPsealinjection flowtoeachRCP-GREATERTHAN6GPM rp1>~JI

~~EOP:ECA-P.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE16of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED18CheckIfSealReturnFlowShouldBeEstablished:

a.VerifyRCP¹1sealoutlettemperature

-LESSTHAN235'Fb.VerifyRCPsealoutletvalvesOPEN~AOV-270A~AOV-270Ba.GotoStep19.b.Manuallyopenvalvesasnecessary.

c.ResetbothtrainsofXYrelaysforRCPsealreturnisolation valveMOV-313d.OpenRCPsealreturnisolation valveMOV-313d.Performthefollowing:

1)PlaceMOV-313switchtoOPEN.e.VerifyRCP¹1sealleakoffflowLESSTHAN5.5GPM2)DispatchAOwithkeytoRWSTgatetolocallyopenMOV-313.e.Performthefollowing:

1)TriptheaffectedRCP2)Allow3minutesforpumpcoastdown,THENclosetheaffectedRCPsealdischarge valve.RCPA,AOV-270A~RCPB,AOV-270BIFbothRCPsealdischarge valvesareshut,THENgotoStep19.f.VerifyRCP¹1sealleakoffflowGREATERTHAN0.8GPMf.RefertoAP-RCP.1, RCPSEALMALFUNCTION.

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~s~~~EOP:ECA-0.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE17of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED19EqualizeChargingAndLetdownFlows:a.Verifychargingpumpcontrollers inmanualb.Controlchargingandsealinjection flowstoequalletdownandsealleakoffflows20CheckIfEmergency D/GsShouldBeStopped:a.VerifyACemergency bussesenergized byoffsitepower:oEmergency D/GoutputbreakersOPENa.Trytorestoreoffsitepower(RefertoER-ELEC.1, RESTORATION OFOFFSITEPOWER).oACemergency busvoltage-GREATERTHAN420VOLTSoACemergency busnormalfeedbreakers-CLOSEDb.Stopanyunloadedemergency D/Gandplaceinstandby(RefertoAttachment D/GSTOP)21MinimizeSecondary Syst:emContamination:

a.IsolaterejectfromhotwelltoCST'Placehotwelllevelcontroller (HC-107)inMANUALat50%a.IFhotwelllevelincreasing, THENdirectRPtosamplehotwellsforactivity.

KoVerifyhotwelllevel-STABLEb.Verifylocalactionstocompleteisolation ofrupturedS/G(RefertoAttachment RUPTUREDS/G)

~~Ce90l1 EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE18of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:AdverseCNMTconditions orlossofforcedaircoolingmayresultinfailureofNISdetectors.

22CheckIfSourceRangeDetectors ShouldBeEnergized:

a.SourcerangechannelsDEENERGIZED a.GotoStep22e.b.Checkintermediate rangeflux-EITHERCHANNELLESSTHAN1010AMPSb.Performthefollowing:

1)IFneitherintermediate rangechannelisdecreasing, THENinitiateboration.

2)ContinuewithStep23.WHENfluxisLESSTHAN10-10~psonanyoperablechannel,THENdoSteps22cthroughe.c..Checkthefollowing:

oBothintermediate rangechannels-LESSTHAN1010AMPSc.ContinuewithStep23.WHENeithercondition met,THENdoSteps22dande.-OR-oGreaterthan20minutessincereactortripd.Verifysourcerangedetectors ENERGIZED d.Manuallyenergizesourcerangedetectors bydepressing P-6permissive defeatpushbuttons (2of2).e.TransferRk-45recordertoonesourcerangeandoneintermediate rangechannelIFsourcerangescanNOTberestored, THENrefertoER-NIS.1, SRMALFUNCTION andgotoStep22.

~~

EOP:EGA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE19of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED23Establish NormalShutdownAlignment:

a.Checkcondenser

-AVAILABLE a.DispatchAOtoperformAttachment SD-2.b.Performthefollowing:

oOpengenerator disconnects

~1G13A71~9X13A73oPlacevoltageregulator toOFFoOpenturbinedrainvalvesoRotatereheatersteamsupplycontroller cerntoclosevalves'PlacereheaterdumpvalveswitchestoHANDoStopallbutonecondensate pumpc.VerifyadequateRxheadcooling:1)CheckIAtoCNMT-AVAILABLE 1)GotoStep24.2)Verifyatleastonecontrolrodshroudfan-RUNNING3)VerifyoneRxcompartment coolingfan-RUNNING2)Manuallystartonefanaspowersupplypermits(45kw)3)Performthefollowing:

oDispatchAOtoresetUVrelaysatMCCCandMCCD.oManuallystartonefanaspowersupplypermits(23kw)d.VerifyAttachment SD-1-COMPLETE

)w'o~rIT EOP:ECA-3.3IT!TLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE20of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:PlantstaffshoulddecidewhethertorepairPRZRpressurecontrolsystemsorcontinuewiththisprocedure.

IfPRZRpressurecontrolisestablished, PRZRlevelshouldberestoredtogreaterthan5%[30%adverseCNMT]andthenfurtherrecoveryshouldcontinuewithE-3,STEAMGENERATOR TUBERUPTURE,Step37.24CheckIfSIACCUMsShouldBeIsolated:

a.Checkthefollowing:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLING a.ReturntoStep11.oRVLISindication

-GREATERTHAN68%[73%adverseCNMT]b.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischarge valves~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cc.CloseSIACCUMdischarge valves~MOV-841~MOV-865c.Ventanyunisolated ACCUMs:1)Openventvalvesforunisolated SIACCUMs.~ACCUMA,AOV-834A~ACCUMB,AOV-834Bd.LocallyreopenbreakersforMOV-841andMOV-8652)OpenHCV-945.

IgCSItIfti!p EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE21of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:LeakagefromrupturedS/GintoRCSwilldiluteRCSboronconcentration.

25VerifyAdequateShutdownMargina.DirectRPtosampleRCSandrupturedS/Gforboronconcentration b.Verifyboronconcentration-GREATERTHANREQUIREMENTS OFFIGURESDMb.Borateasnecessary.

26MaintainRequiredRCPSealInjection FlowAndLabyrinth SealD/P:oLabyrinth sealD/PtoeachRCP-GREATERTHAN15INCHES,OFWATERoRCPsealinjection flow-GREATERTHAN6GPMPerformthefollowing:

oAdjustchargingflowtoREGENHx,HCV-142asnecessary.

-OR-oDispatchAOtoadjustsealinjection needlevalvesV-300AandV-300Bifnecessary.

27InitiateRCSCooldownto350'FInRCSColdLegs:a.Establish andmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.Dumpsteamtocondenser fromintactS/Gb.ManuallyorlocallydumpsteamusingintactS/GARV.IFnointactS/Gavailable, THENusefaultedS/G.

~~

EOP:EGA-).3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE22of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONRCSANDRUPTUREDS/GPRESSURES MUSTBEMAINTAINED LESSTHANTHERUPTUREDS/GARVSETPOINT.

28ControlChargingFlowToMaintainRCSSubcooling:

a.RCSsubcooling basedoncoreexitT/Cs-GREATERTHAN20'FUSINGFIGUREMINSUBCOOLING b.RupturedS/GnarrowrangelevelLESSTHAN90%[85%adverseCNMT]c.RupturedS/GnarrowrangelevelSTABLEORDECREASING a.Increasechargingflowtomaintainsubcooling greaterthan20'FusingFigureMINSUBCOOLING andgotoStep29.b.ControlchargingflowtomaintainRCSpressureatrupturedS/GpressureandgotoStep29.c.IFrupturedS/Glevelincreasing, THENdecreasechargingflowtostabilize level.MaintainRCSsubcooling greaterthan20'FusingFigureMINSUBCOOLING.

29CheckIfRCSCooldownShouldBeStopped:a.RCScoldlegtemperatures

-LESSTHAN350'Fa.ReturntoStep25.b.StopRCScooldown tgl'IA+

EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE23of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED30CheckRCSPressure-GREATERTHAN400PSIG[300PSIGadverseCNMT]GotoStep33'31MonitorRupturedS/GNarrowRangeLevel-GREATERTHAN17%r25%adverseCNMT]RefillrupturedS/Gto67%[55%adverseCNMT]usingfeedflow.IFeitherofthefollowing conditions occurs,THENstopfeedflowtorupturedS/G:oRupturedS/Gpressuredecreases inanuncontrolled manner.-OR-oRupturedS/Gpressureincreases to1020psig.e

~I EOP:ECA-3.3TITLESGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE24of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoSTEAMSHOULDNOTBERELEASEDFROMARUPTUREDS/GIFWATERMAYEXISTINITSSTEAMLINE.

oRUPTUREDS/GPRESSUREMAYDECREASERAPIDLYWHENSTEAMISRELEASED.

NOTE:TheupperheadregionmayvoidduringRCSdepressurization ifRCPsarenotrunning.Thismayresultinarapidlyincreasing PRZRlevel.32Depressurize RCSAndRupturedS/GTo400PSIGt'300PSIGadverseCNMT]a.Performthefollowing:

oDecreasechargingandincreaseletdowntoinitiatebackfill-OR-oInitiateblowdownfromrupturedS/G-OR-oDumpsteamfromrupturedS/Gb.CheckRCSpressure-LESSTHAN400psig[300psigadverseCNMT]c.StopRCSdepressurization b.ReturTLtoStep31.

1I'p'bl"g'"I>as0 EOP:ECA-3.3ITITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE25of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED33CheckIfRHRNormalCoolingCanBeEstablished:

a.RCScoldlegtemperature

-LESSTHAN350'Fa.ReturntoStep27.b.RCSpressure-LESSTHAN400psig[300psigadverseCNMT]c.PlaceRCSoverpressure protection systeminservice(Referto0-7,ALIGNMENT ANDOPERATION OFTHEREACTORVESSELOVERPRESSURE PROTECTION SYSTEM)d.Establish RHRnormalcooling(RefertoAttachment RHRCOOL)b.ReturntoStep31.c.IFRCSoverpressure protection systemcanNOTbeplacedinservice,THENnotifyTSCofpotential TechSpecviolation ifRHRsystemisplacedinservice.NOTE:LeakagefromrupturedS/GintoRCSwilldiluteRCSboronconcentration.

34VerifyAdequateShutdownMargina.DirectRPtosampleRCSandrupturedS/Gforboronconcentration b.Verifyboronconcentration-GREATERTHANREQUIREMENTS OFFIGURESDMb.Borateasnecessary.

14I7' EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE26of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED35InitiateRCSCooldownToColdShutdown:

a.Establish andmaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.UseRHRsystemifinservicec.Dumpsteamtocondenser fromintactS/Gc.ManuallyorlocallydumpsteamfromintactS/GusingARVs.IFnointactS/Gavailable andRHRsystemNOTinservice,THENusefaultedS/G.36ControlChargingFlowToMaintainRCSSubcooling:

a.RCSsubcooling basedoncoreexitT/Cs-GREATERTHAN20'FUSINGFIGUREMINSUBCOOLING b.RupturedS/GnarrowrangelevelLESSTHAN90%[85%adverseCNMT)c.RupturedS/GnarrowrangelevelSTABLEORDECREASING a.Increasechargingflowtomaintainsubcooling greaterthan20'FusingFigureMINSUBCOOLING andgotoStep37.b.ControlchargingflowtomaintainRCSpressureatrupturedS/GpressureandgotoStep37.c.IFrupturedS/Glevelincreasing, THENdecreasechargingflowtostabilize level.MaintainRCSsubcooling greaterthan20'FusingFigureMINSUBCOOLING

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EOP:ECA-,3.3IT1TLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE27of27STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*37MonitorRCPOperation:

a.RCPs-ANYRUNNINGb.Checkthefollowing:

oRCP¹1sealD/P-GREATERTHAN220PSIDa.GotoStep39.b.StoptheaffectedRCP(s).oCheckRCPsealleakageWITHINTHENORMALOPERATING RANGEOFFIGURERCPSEALLEAKOFF38CheckCoreExitT/Cs-LESSTHAN200'FReturntoStep34.39EvaluateLongTermPlantStatus:a.Maintaincoldshutdownconditions b.ConsultTSC-END-

EOP:ECA-3.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE1of1ECA-3.3APPENDIXLISTTITLEPAGES1)REDPATHSUMMARY2)FIGUREMINSUBCOOLING 3)FIGURESDM4)FIGURERCPSEALLEAKOFF5)ATTACHMENT RCPSTART6)ATTACHMENT N2PORVS7)ATTACHMENT RUPTUREDS/G8)ATTACHMENT D/GSTOP9)ATTACHMENT SD-110)ATTACHMENT SEALCOOLING11)ATTACHMENT SD-212)ATTACHMENT RHRCOOL13)ATTACHMENT AUXBLDGSW14)FOLDOUT Jf EOP:,ECA-~.3TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE1of1REDPATHSUMMARYa.SUBCRITICALITY

-Nuclearpowergreaterthan5tb.CORECOOLING-CoreexitT/Csgreaterthan1200'F-OR-CoreexitT/Csgreaterthan700'FANDRVLISlevel(noRCPs)lessthan434[464adverseCNMT]c.HEATSINK-NarrowrangelevelinallS/Gslessthan54[254adverseCNMT]ANDtotalfeedwater flowlessthan200gpmd.INTEGRITY

-Coldlegtemperatures decreasegreaterthan100Finlast60minutesANDRCScoldlegtemperature lessthan285'Fe.CONTAINMENT

-CNMTpressuregreaterthan60psig 0~fr>,(JlOhpl/

EOP:ECA-3.3~z~~TITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE1of1FIGUREMINSUBCOOLING NOTE:Subcooling Margin=Saturation Temperature FromFigureBelow[-]CoreExitT/CIndication RC250024002300220021002000190018001700160015001300120011001000900800700'005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREMENTS 20PSIGSUBCOOLED REGIONADVERSECNMTNORMALCNMTINADEQUATE SUBCOOLING REGIONTEMPERATURE INCREMENTS 10'F200250300350400450500550600650700COREEXITSATURATION TEMPERATURE

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~~qsl.'V4 EOP:EGA,-3~3TITLESGTRWITHOUTPRESSURIZER PRESSURECONTROLREV12PAGE1of1FIGURESDMNOTE:oCurveincludesallowance foronestuckrod.Add100ppmforeachadditional stuckrod.oToobtaincoreburnup,usePPCSpointIDBURNUP.BORONCONCENTRATION (PPM)18001600BORONINCREMENTS 20PPH140012001000ADEQUATESDH100PPHCONSERVATISH INCLUDED800600400200BURNUPINCREMENTS 100MWD/MTU0100020003000400050006000700080009000100001100012000CYCLE25BURNUP(MWD/MTU)

I'i~0~'tCa~'l(Af~<4(j EOP:ECA-3.3~rTITLE:SGTRWITHOUTPRESSURIZER PRESSURECONTROLREV:12PAGE1of1FIGURERCPSEALLEAKOFF¹1SEALLEAKRATE(GPH)6LEAKRATEINCREHENTS 0.2GPHNORHALOPERATING RANGEDPINCREHENTS 50PSI2505007501000125015001750200022502500¹1SEALDP(RCSPRESS-VCTPRESS)PSI

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