ML17263A306

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Rev 8 to FR-C.2, Response to Degraded Core Cooling.
ML17263A306
Person / Time
Site: Ginna Constellation icon.png
Issue date: 05/19/1993
From: MARLOW T A
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A305 List:
References
FR-C.2, NUDOCS 9306040165
Download: ML17263A306 (82)
v • d • e


Text

EOP:FR-C.2'ESPONSE TODEGRADEDCORECOOLINGREV8PAGE1of15ROCHESTER GASANDELECTRICCORPORATION GINNASTATIONCONTROLLED COPYNUMBERTECHNICAL REVIEWPORCREVIEWDATESichPLANTSUPERITENDENTEFFECTIVE DATECATEGORY1.0REVIEWEDBY:!9'30b040165 930524PDRADQCK05000244roe

EOP:FR-C.2TITLE:RESPONSETODEGRADEDCORECOOLINGREV:8PAGE2of15A.PURPOSE-Thisprocedure providesactionstorestoreadequatecorecooling.B.ENTRYCONDITIONS/SYMPTOMS l.ENTRYCONDITIONS

-Thisprocedure isenteredfrom:a.F-0.2,CORECOOLINGCriticalSafetyFunctionStatusTree,onanyORANGEcondition.

EOP:FR-CD2RESPONSETODEGRADEDCORECOOLINGREV:8PAGE3of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:AdverseCNHTvaluesshouldbeusedwheneverCNMT~ressureisgreaterthan4psigorCNMTradiation isgreaterthan10+R/hr.1CheckRWSTLevel-GREATERTHAN284Performthefollowing:

a.EnsureSIsystemalignedforcoldlegrecirculation usingSteps1throughllofES-1.3,TRANSFERTOCOLDLEGRECIRCULATION.

b.GotoStep4.

EOP:FR-C.2RESPONSETODEGRADEDCORECOOLINGREV'PAGE4of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED2VerifySIPumpAndRHRPumpEmergency Alignment:

a.RHRpumpdischarge toRxvesseldeluge-OPEN~MOV-852A~MOV-852Ba.Ensureatleastonevalveopen.b.VerifySIpumpC-RUNNINGc.VerifySIpumpA-RUNNINGd.VerifySIpumpB-RUNNINGb.Manuallystartpumponavailable bus.c.Performthefollowing; 1)EnsureSIpumpsBandCrunning.2)EnsureSIpumpCalignedtodischarge lineA:oMOV-871BclosedoMOV-871Aopen'3)GotoStep3.d.Performthefollowing:

1)EnsureSIpumpsAandCrunning,2)EnsureSIpumpCalignedtodischarge lineB:oMOV-871BopenoMOV-871Aclosede.VerifybothSIpumpCdischarge valves-OPEN~MOV-871A~MOV-871B.

3)GotoStep3.e.Manuallyopenvalvesasnecessary.

EOP:FR-C.2T!TLERESPONSETODEGRADEDCORECOOLINGREV:8PAGE5of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED3VerifySIPumpSuctionAlignment:

a.CheckBASTlevel:oLevel-GREATERTHAN10%oAnnunciator B-23,BORICACIDTANKLOLOLEVEL-EXTINGUISHED a.Performthefollowing:

1)EnsureatleastoneSIpumpsuctionvalvefromRWSTopen.~MOV-825A~MOV-825B2)EnsureatleastonevalveineachSIpumpsuctionlinefromBASTclosed.~MOV-826AorMOV-826B~MOV-826CorMOV-826Db.VerifySIpumpsuctionvalvesfromBAST-OPEN~MOV-826A~MOV-826B~MOV-826C~MOV-826D3)GotoStep4.b.Ensurebothvalvesineitherflowpathopen.oMOV-826AandMOV-826B-OR-oMOV-826CandMOV-826Dc.VerifySIpumpsuctionfromRWSTCLOSED~MOV-825A~MOV-825Bc.Manuallyalignvalvesasnecessary.

'.0P~~

EOP:FR-C.2TITLE!RESPONSETODEGRADEDCORECOOLINGREV:8PAGE6of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED4VerifySIFlowInBothTrains:a.SIlineloopAandBflowindicators

-CHECKFORFLOWa.Performthefollowing:

1)ManuallystartSIpumpsandalignvalvesasnecessary.

2)Establish maximumchargingflow.b.RCSpressure-LESSTHAN250psig(465psigadverseCNMT]c.RHRloopflowindicator

-CHECKFORFLOWb.GotoStep5.c.ManuallystartRHRpumpsandalignvalves.

EOP:'FR-C.2T!TLE:RESPONSETODEGRADEDCORECOOLINGREV:8PAGE7of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED***************,**************************CAUTIONIFANYPRZRPORVOPENSBECAUSEOFHIGHPRZRPRESSURE, ITSHOULDBECLOSEDAFTERPRESSUREDECREASES TOLESSTHAN2335PSIG(REFERTOSTEP5B).5CheckRCSVentPaths:a.PowertoPRZRPORVblockvalves-AVAILABLE b.PORVs-CLOSEDa.RestorepowertoblockvalvesunlessblockvalvewasclosedtoisolateanopenPORV:~MOV-515,MCCCposition6C~MOV-516,MCCDposition6Cb.IFPRZRpressurelessthan2335psig,THENmanuallyclosePORVs.IFanyPORVcanNOTbeclosed,THENmanuallycloseitsblockvalve.c.Blockvalves-ATLEASTONEOPENc.OpenoneblockvalveunlessitwasclosedtoisolateanopenPORV.d.RxvesselheadventvalvesCLOSEDd.Manuallyclosevalves.~SOV-590~SOV-591~SOV-592~SOV-593

EOP:FR-C.2RESPONSETODEGRADEDCORECOOLINGREV8PAGE8of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:Normalconditions forrunningRCPsaredesired,butRCPsshouldnotbetrippedifnormalconditions cannotbeestablished ormaintained.

6CheckRCPStatus:a.AtleastoneRCP-RUNNINGb.Supportconditions fortheoperating RCP(s)available (RefertoAttachment RCPSTART)a,GotoStep9.b.Trytoestablish supportconditions fortheoperating RCP.7CheckRVLISFluidFractiona.Fluidfraction(anyRCPon)GREATERTHAN60%b.Returntoprocedure andstepineffect.a.IFincreasing, THENreturntoStepl.IFNOT,thengotoStep8.8CheckIfOneRCPShouldBeStopped:a.BothRCPs-RUNNINGb.StoponeRCPc.GotoStep10a.GotoStep10.

i~I' EOP:PR-C.2RESPONSETODEGRADEDCORECOOLINGREV:8PAGE9of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED9CheckCoreCooling:a.RVLISlevel(noRCPs)-GREATERTHAN43%[46%adverseCNMT]b.CoreexitT/Cs-LESSTHAN700'Fc.Returntoprocedure andstepin"effecta.IFincreasing, THENreturntoStepl.IFNOT,THENgotoStep10.b.IFdecreasing, THENreturntoStep1.IFNOT,THENgotoStep10.10'CheckSIACCUMDischarge Valves-OPEN~MOV-841~MOV-865IFSIACCUMdischarge valvesclosedafterACCUMdischarge, THENgotoStep11.IFNOT,THENperformthefollowing:

a.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischarge valves.~MOV-841,MCCCposition12F~MOV-865,MCCDposition12Cb.OpenSIACCUMdischarge valves.~ACCUMA,MOV-841~ACCUMB,MOV-865

EOP:FR-C.0TITLE:RESPONSETODEGRADEDCORECOOLINGREV:8PAGE10of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONoIFCSTLEVELDECREASES TOLESSTHAN5FEET,THENALTERNATE WATERSOURCESFORAFWPUMPSWILLBENECESSARY (REFERTOER-AFW.1, ALTERNATE WATERSUPPLYTOAFWPUMPS).oAFAULTEDORRUPTUREDS/GSHOULDNOTBEUSEDINSUBSEQUENT STEPSUNLESSNOINTACTS/GISAVAILABLE.

NOTE;TDAFWpumpflowcontrolvalvesfailopenonlossofIA.*11MonitorIntactS/GLevels:la.'arrowrangelevel-GREATERTHAN5%[25%adverseCNMT]b.Controlfeedflowtomaintainnarrowrangelevelbetween17%[25%adverseCNMT]and50%a.=Increasetotalfeedflowtorestorenarrowrangelevelgreaterthan5%[25%adverseCNMT]inatleastoneS/G.12VerifyCondenser SteamDumpInManual:a.Verifycondenser available:

oIntactS/GMSIV-OPENoAnnunciator G-15,STEAMDUMPARMED-LITa.PlaceintactS/GARVcontroller inMANUALandgotoStep13,b.PlacesteamdumpmodeselectorswitchinMANUALc.Placesteamdumpcontroller inMANUAL

EOP:PR-C.2RESPONSETODEGRADEDCORECOOLINGREV8PAGE11of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONTHEFOLLOWING STEPWILLCAUSESIACCUMULATOR INJECTION WHICHMAYRESULTINAREDPATHCONDITION INF-0.4,INTEGRITY STATUSTREE.THISPROCEDURE SHOULDBECOMPLETED BEFORETRANSITION TOFR-P.1,RESPONSETOIMMINENTPRESSURIZED THERMALSHOCK.13Depressurize AllIntactS/GsTo200PSIG:a.Maintaincooldown rateinRCScoldlegs-LESSTHAN100'F/HRb.Dumpsteamtocondenser b.ManuallyorlocallydumpsteamfromintactS/Gs:oUseS/GARVs.-OR-oOpenTDAFWpumpsteamsupplyvalve(s)foraffectedS/G(s):~S/GA,MOV-3505A

~S/GB)MOV-3504A

-OR-oLocallyperformthefollowing:

oOpenintactS/GMSIVbypassvalve.oOpenprimingairejectorsteamisolation valves.~V-3580~V-3581c.CheckS/Gpressures

-LESSTHAN200PSIGc.ReturntoStep11.d.StopS/Gdepressurization

EOPsFR-C.2RESPONSETODEGRADEDCORECOOLINGREV'PAGE12of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONRHRPUMPSSHOULDNOTBERUNLONGERTHAN1HOURWITHOUTCCWTOTHERHRHEATEXCHANGERS.

14CheckRHRPumps-RUNNINGManuallystartpumpsasnecessary.

15CheckIfSIACCUMsShouldBeIsolated:

a.RCShotlegtemperatures

-BOTHLESSTHAN400'Fa.GotoStep17.b.DispatchAOwithlockedvalvekeytolocallyclosebreakersforSIACCUMdischarge valvesifnecessary

~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.

C EOP:FR-C.2TITLE:RESPONSETODEGRADEDCORECOOLINGREV:8PAGE13of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************************************CAUTIONSYMPTOMSFORFR-C.1,RESPONSETOINADEQUATE CORECOOLING,SHOULDBECLOSELYMONITORED DURINGSUBSEQUENT STEPS.16StopAllRCPs17Depressurize AllIntactS/GsToAtmospheric Pressure:

a.MaintaincooldownrateinRCScoldlegs-LESSTHAN100'F/HRb.Dumpsteamtocondenser b.ManuallyorlocallydumpsteamfromintactS/Gs:1)UseS/GARVs.2)OpenTDAFWpumpsteamsupplyvalve(s)foraffectedS/G(s):~S/GA,MOV-3505A

~S/GB)MOV-3504A 3)Locallyperformthefollowing:

oOpenintactS/GMSIVbypassvalve.oOpenprimingairejectorsteamisolation valves.~V-3580~V-3581

FOP:v~FR-C.2RESPONSETODEGRADEDCORECOOLINGREV:8PAGE14of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED18VerifySIFlow:oSIlineloopAandBflowindicators

-CHECKFORFLOWPerformthefollowing:

a.Continueeffortstoestablish SIflow.-OR-oRHRloopflowindicator

-CHECKFORFLOWb.Trytoestablish maximumchargingflow.c.ReturntoStep17.19IsolateBothSIACCUMs:a.CloseSIACCUMdischarge valves~MOV-841~MOV-865a.Ventanyunisolated ACCUMs:1)Openventvalvesforunisolated SIACCUMs.b.LocallyreopenbreakersforMOV-841andMOV-865~ACCUMA,AOV-834A~ACCUMB,AOV-834B2)OpenHCV-945.20StopAllRCPs21CheckCoreCooling:oRVLISlevel(noRCPs)-GREATERTHAN68%f73%adverseCNMT]oBothRCShotlegtemperatures-LESSTHAN320'FReturntoStep17.

EOP:FR-C.2RESPONSETODEGRADEDCORECOOLINGREV8PAGE15of15STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED22GotoAppropriate PlantProcedure a.CheckRWSTlevel-GREATERTHAN28'.GotoE-l,LOSSOFREACTORORSECONDARY COOLANT,Step17a.GotoES-1.3,TRANSFERTOCOLDLEGRECIRCULATION, Stepl.-END-

EOPFR-C.2TITLE:RESPONSETODEGRADEDCORECOOLINGREV:8PAGE1of1FR-C.2APPENDIXLISTTITLE1)ATTACHMENT RCPSTARTPAGES 8\r~'

EOP:tFR-P.1T!TLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE1of22ROCHESTER GASANDELECTRICCORPORATION GINNASTATXONCONTROLLED COPYNUMBERTECHNICAL REVIEWPORCREVIEWDATETSUPERXNTENDENT EFFECTXVE DATECATEGORY1.0REVIEWEDBY:

1 EOP:IFR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE2of22A.PURPOSE-Thisprocedure providesactions-toavoid,orlimit,thermalshockorpressurized thermalshocktothereactorpressurevessel,oroverpressure conditions atlowtemperature.

B.ENTRYCONDITIONS/SYMPTOMS 1.ENTRYCONDITIONS

-Thisprocedure isenteredfrom:a.F-0.4,INTEGRITY CriticalSafetyFunctionStatusTree,oneitheraREDorORANGEcondition.

e EOP:,FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE3of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:AdverseCNMTvaluesshouldbeusedwheneverCNMTpressureisgreaterthan4psigorCNHTradiation isgreaterthan10+"R/hr.1CheckRCSPressure-GREATERTHAN250PSIG[465PSIG~adverseCNMT]IFRHRflowgreaterthan475gpm,THENreturntoprocedure andstepineffect.

f EOP:IFR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION IIREV:8PAGE4of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:AfaultedS/GisanyS/Gthatisdepressurizing inanuncontrolled manneroriscompletely depressurized.

2CheckRCSColdLegTemperatures

-STABLEORINCREASING TrytostopRCScooldown:

a.EnsureS/GARVsclosed.b.ClosebothS/GMSIVs.c.EnsureMFWflowcontrolvalvesclosed.+MFWregulating valves~MFWbypassvalvesd.EnsureMFWpumpstripped.e.Rotatereheatersteamsupplycontroller camtoclosereheatersteamsupplyvalves.f.IFS/Gpressurelessthancondensate

pressure, THENstopallcondensate pumps.g.IFRHRsysteminservice,THENstopanycooldownfromRHRsystem.h.Controltotalfeedflowtonon-faulted S/G(s)greaterthan200gpmuntilnarrowrangelevelgreaterthan5%[25%adverseCNMT]inatleastonenon-faulted S/G.WHENS/Glevelgreaterthan5S[25%adverseCNMTJinonenon-faulted S/G,THENlimitfeedflowtostopRCScooldown.

ThisStepcontinued onthenextpage.

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV8PAGE5of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED(Step2continued frompreviouspage)i.MinimizecooldownfromfaultedS/G(s):1)ClosefaultedS/G(s)TDAFWpumpsteamsupplyvalve(s).

~S/GA,MOV-3505A

~S/GB,MOV-3504A 2)IFbothS/G(s)faulted,THENcontrolfeedflowat50gpmtoeachS/G.3)IFanyS/GNOTfaulted,THENisolateallfeedwater tofaultedS/Gunlessnecessary forRCStemperature control.IFafaultedS/Gisnecessary forRCStemperature control,THENcontrolfeedflowat50gpmtothatS/G.3CheckPRZRPORVBlockValves:a.PowertoPORVblockvalvesAVAILABLE a.RestorepowertoblockvalvesunlessblockvalvewasclosedtoisolateanopenPORV:b.Blockvalves-ATLEASTONEOPEN~MOV-515,MCCCposition6C~MOV-516,MCCDposition6Cb.OpenoneblockvalveunlessitwasclosedtoisolateanopenPORV.IFatleastoneblockvalvecanNOTbeopened,THENdispatchAOtolocallycheckbreaker.~MOV-515,MCCCposition6C~MOV-516,MCCDposition6C 10 EOP:IFR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV8PAGE6of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED**%*4************************************

CAUTIONIFANYPRZRPORVOPENSBECAUSEOFHIGHPRZRPRESSURE, THENSTEP4SHOULDBEPERFORMED AFTERPRESSUREDECREASES TOLESSTHANTHEAPPLICABLE PORVSETPOINT.

4CheckPRZRPORVStatus:a.CheckReactorVesselOverpressure Protection System-INSERVICEa.GotoStep4d.b.CheckRCSpressure-LESSTHAN410PSIGb.Performthefollowing:

l)EnsureatleastonePRZRPORVopen.2)ContinuewithStep5.WHENpressurelessthansetpoint, THENdoStep4e.c.GotoStep4ed.PRZRpressure-LESSTHAN2335PSIGe.VerifyPRZRPORVs-CLOSEDd.Performthefollowing:

1)EnsureatleastonePRZRPORVopen.2)ContinuewithStep5.WHENpressurelessthansetpoint, THENdoStep4e.'7e.Manuallyclosevalve.IFanyval~ecanNOTbeclosed,THENmanuallycloseitsblockvalve.

~l>1~1>>I'8 EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE7of22STEP.ACTION/EXPECTED RESPONSERESPONSENOTOBTAINED5CheckSIPumps-ANYRUNNINGGotoStep14.6CheckIfSICanBeTerminated:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHAN50'FUSINGFIGUREMINSUBCOOLING oCheckRVLISindication:

oLevel(noRCPs)-GREATERTHAN68%[73%adverseCNMTj-OR-oFluidfraction(anyRCPrunning)-GREATERTHAN80%DoNOTstopSIpumps'erform thefollowing:

a.IFRCSsubcooling basedoncoreexitT/CsgreaterthanO'FusingFigureMINSUBCOOLING andnoRCPrunning,THENattempttostartanRCP:1)Establish conditions forstartinganRCP:'BusllAor11Benergized oRefertoAttachment RCPSTART2)IFconditions established, THENstartoneRCP.b.GotoStep27.*****************************************CAUTIONIFOFFSITEPOWERISLOSTAFTERSIRESET,THENSELECTEDSWPUMPSANDONECCWPUMPWILLAUTOSTARTONEMERGENCY D/G.MANUALACTIONWILLBEREQUIREDTORESTARTSAFEGUARDS EQUIPMENT.

7ResetSI

EOP:IFR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE8of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED8StopSIAndRHRPumpsAndPlaceInAUTO9ResetCI:a.DepressCIresetpushbutton b.Verifyannunciator A-26,CNMTISOLATION

-EXTINGUISHED b.Performthefollowing:

1)ResetSI.2)DepressCIresetpushbutton.

10VerifyAdequateSWFlow:a.CheckatleasttwoSWpumpsRUNNINGa.ManuallystartSWpumpsaspowersupplypermits(258kweach).IFlessthantwoSWpumpsrunning,THENperformthefollowing:

1)EnsureSWisolation.

2)DispatchAOtoestablish normalshutdownalignment (RefertoAttachment SD-l).b.DispatchAOtoestablish normalshutdownalignment

{RefertoAttachment SD-1)3)GotoStep12.WHENadequateSWavailable, THENdoStep11.

{a EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE9of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED11Establish IAtoCNMT:a.Verifynon-safeguards bussesenergized fromoffsitepoweroBus13normalfeed-CLOSED-OR-oBus15normalfeed-CLOSEDb.VerifySWisolation valvestoturbinebuilding-OPEN~MOV-4613andMOV-4670~MOV-4614andMOV-4664c.Verifyatleasttwoaircompressors

-RUNNINGd.CheckIAsupply:oPressuxe-GREATERTHAN60PSIGoPressure-STABLEORINCREASING e.ResetbothtrainsofXYrelaysforIAtoCNMTAOV-5392f.VerifyIAtoCNMTAOV-5392-OPENa.Performthefollowing:

1)Closenon-safeguards bustiebreakers:

~Bus13toBus14tie'Bus15toBus16tie2)Verifyadequateemergency D/Gcapacitytorunaircompressors (75kweach).IFHQT,THEMevaluateifCHHTRECIRCfansshouldbestopped(RefertoAttachment CNMTRECIRCFANS).3)WHENbus15restored, THENresetcontrolroomlighting.

b.Manuallyalignvalves,c.Manuallystartaircompressors aspowersupplypermits(75kweach).IFaircompressors canNOTbestarted,THENdispatchAOtolocallyresetcompressors asnecessary.

d.Performthefollowing:

1)ContinueattemptstorestoreIA(RefertoAP-IA.1,LOSSOFIZISTRUMENT AIR).2)ContinuewithStep12.WHENIArestored, THENdoStepslieandf.

l4 EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE10of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*****************4***********************CAUTIONALIGNINGSIPUMPSUCTIONTORWSTBEFOREISOLATING BASTMAYRESULTINBACKFLOW~FROMRWSTTOBASTS.12VerifySIPumpSuctionAlignedToRWST:a.SIpumpsuctionvalvesfromBASTs-CLOSED~MOV-826A~MOV-826B~MOV-826C~MOV-826Da.Ensureatleastonevalveineachflowpathclosed.~MOV-826AorMOV-826B~MOV-.826C orMOV-826Db.SIpumpsuctionvalvesfromRWSTOPEN~MOV-825A~MOV-825Bb.Ensureatleastonevalveisopen.c.ConsultTSCtodetermine ifSIflushisrequired(RefertoAttachment SIFLUSH) 1J EOP:FR-P.1TITLE%RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV8PAGE11of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDT13CheckIfChargingFlowHasBeenEstablished:

a.Chargingpumps-ANYRUNNINGa.Performthefollowing:

1)IFCCWflowislosttoanyRCPthermalbarrierORanyRCPPlsealoutlettemperature offscalehigh,THENdispatchAOwithkeytoRWSTgatetolocallyclosesealinjection needlevalve(s)toaffectedRCP:~RCPA,V-300A~RCPB>V-300B2)EnsureHCV-142open,demandatOS.b.AlignchargingpumpsuctiontoRWST'LCV-112B-OPENoLCV-112C-CLOSEDb.IFLCV-112BcanNOTbeopened,THENperformthefollowing:

1)VerifychargingpumpANOTrunningandplacein.PULLSTOP.c.Startchargingpumpsasnecessary andadjustchargingflowtorestorePRZRlevel2)DispatchAOtolocallyopenmanualchargingpumpsuctionfromRWST(V-358locatedinchargingpumproom).3)WHENV-3S8open,THENdirectA'0tocloseV-268toisolatechargingpumpsBandCfromVCT(V-268locatedinchargingpumproom).

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV*8PAGE12of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED*14MonitorSIReinitiation Criteria:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHANFIGUREMINSUBCOOLING oRVLISindication:

ManuallyoperateSIpumpsasnecessary andperformthefollowing:

a.IFRCSsubcooling basedoncoreexitT/CsgreaterthanFigureMINSUBCOOLING andnoRCPrunning,THENattempttostartaRCP:oLevel-GREATERTHAN68%[73%adverseCNMT]-OR-oFluidfraction(anyRCPrunning)-GREATERTHAN80%1)Establish conditions forstartinganRCP:oBus11Aor11Benergized oRefertoAttachment RCPSTART2)IFconditions established, THENstartoneRCP.b.GotoStep27.15CheckRCSHotLegTemperatures

-STABLEIFincreasing, THENcontrolfeedflowanddumpsteamtostabilize RCShotlegtemperatures.

IFdecreasing, THENverifythatactionsofStep2havebeenperformed beforecontinuing withprocedure.

0t1 EOP:,FR-P.1T1TLERESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE13of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED16CheckIfSIACCUMsShouldBeIsolated:

a.Checkthefollowing:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHANO'USINGFIGUREMINSUBCOOLING a.ReturntoStep14.oRVLISindication:

oLevel-GREATERTHAN68%(73%adverseCNMT]-OR-oFluidfraction(anyRCPrunning)-GREATERTHAN80%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-945.3)ContinuewithStep17.DoNOTdecreaseRCSpressuretolessthanunisolated ACCUMpressure.

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE14of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED**********************************'*******CAUTIONTHERCSSHOULDNOTBEDEPRESSURIZED TOLESSTHANSIACCUMPRESSUREUNTILSIACCUMSISOLATED.

NOTE:oIfauxiliary sprayisinuse,sprayflowmaybeincreased byclosingnormalchargingvalveAOV-294andnormalPRZRsprayvalves.oWhenusingaPRZRPORVselectonewithanoperableblockvalve.17Depressurize RCSToDecreaseRCSSubcooling:

a.Depressurize usingnormalPRZRsprayifavailable a.IFnormalsprayNOTavailable, THENuseonePRZRPORV.IFIANOTavailable, THENrefertoAttachment N2PORVS.b.Depressurize RCSuntileitherofthefollowing conditions satisfied:

IFnoPRZRPORVavailable, THENuseauxiliary sprayvalve(AOV-296).

oRCSsubcooling basedoncoreexitT/Cs-LESSTHAN10'FUSINGFIGUREMINSUBCOOLING

-OR-oPRZRlevel-GREATERTHAN87%[75%adverseCNMT]c.StopRCSdepressurization

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV8PAGE15of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED18CheckIfRCPsMustBeStopped:a.RCPs-ANYRUNNINGb.Checkthefollowing:

oRCP41sealD/P-LESSTHAN220PSIDa.GotoStep19.b.GotoStep19.-OR-oRCP51sealleakoff-LESSTHAN0.25GPMc.StopaffectedRCP(s)**********************4******************CAUTIONANINCREASEINRCSPRESSUREMAYRESULTINEXCESSIVE REACTORVESSELSTRESS.RCSPRESSUREANDTEMPERATURE SHOULDBEMAINTAINED STABLEWHILEPERFORMING SUBSEQUENT STEPSINTHISPROCEDURE.

19CheckPRZRLevel-GREATERTHAN134[404adverseCNMT]Trytorestorelevelwithchargingwhilemaintaining stableRCSpressure.

IFlevelcanNOTberestored, THENgotoStep26.

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE16of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED20CheckIfNorInalCVCSOperation CanBeEstablished a.VerifyIArestored:

oIAtoCNMT{AOV-5392)

-OPENoIApressure-GREATERTHAN60PSIGa.ContinuewithStep24'HENIArestored, THENdoSteps20through23:b.CCWpumps-ANYRUNNINGb.Performthefollowing:

1)IFanyRCP51sealoutlettemperature offscalehigh,THENisolateCCWtothermalbarrierofaffectedRCP{s).~RCPA,MOV-749AandMOV-759A~RCPB,MOV-749BandMOV-759Bc.Verifyinstrument busD-ENERGIZED d.Chargingpump-ANYRUNNING2)ManuallystartoneCCWpump.c.EnergizeMCCBEIFMCCBNOTavailable, THENperformthefollowing:

1)VerifyMCCAenergized.

2)Placeinstrument busDonmaintenance supply.d.ContinuewithStep25.WHENanychargingpumprunning,THENdoSteps21through25.

EOP:rFR-P.1T1TLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REU:8PAGE17of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED******%**********************************CAUTIONIFRCSPRESSURELESSTHAN250PSIG,THENPCV-135SHOULDBEADJUSTEDTOESTABLISH DESIREDLETDOWNFLOW,NOTTOINCREASEPRESSURE.

I21Establish NormalLetdown:a.Establish charginglineflowtoREGENHx-GREATERTHAN20GPMb.Placethefollowing switchestoCLOSE'Letdownorificevalves(AOV-200A, AOV-200B, andAOV-202)~AOV-371,letdownisolation valve+AOV-427,1'oopBcoldlegtoREGENHxc.Placeletdowncontrollers inMANUALat25%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.oAd)ustchargingpumpspeedasnecessary.

IFRCPsealreturnNOTestablished, THENconsultTSCtodetermine ifexcessletdownshouldbeplacedinservice.

D EOP:0FR-P.1TlTLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE18of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED22CheckVCTMakeupSystem:a.BASTlevels-ANYGREATERTHAN5%b.CheckAnnunicator B-23,BORICACIDTANKLOLOLEVEL-EXTINGUISHED a.Goto.Step23.b.Performthefollowing:

1)Adjustboricacidflowcontrolvalvetorequiredflowfromtable.BASTLEVELBORICACIDFLOW(GPM)<10%10-15%15-208>20%4.56.78.910.0c.Adjust,boricacidflowcontrolvalveinAUTOto4.5gpmd.Verifythefollowing'.

1)RMWmodeselectors~itchinAUTO2)GotoStep22d.d.Ad)ustcontrolsasnecessary.

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

2)PlaceRMWflowcontrolvalveHCV-111inMANUALandincreaseRMWflow.3)Increaseboricacidflowasnecessary.

0 EOP:IPR-P.1T!TLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE19of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED23CheckChargingPumpSuctionAlignedToVCT:a.VCTlevel-GREATERTHAN20%a.IFVCTlevelcanNOTbemaintained greaterthan5%,THENperformthefollowing:

1)EnsurechargingpumpsuctionalignedtoRWSToLCV-112BopenoLCV-112Cclosed2)ContinuewithStep24.WHENVCTlevelgreaterthan408,THENdoStep23b.b.VerifychargingpumpsalignedtoVCToLCU-112C-OPENoLCV-112B-CLOSEDb.Hanuallyalignvalvesasnecessary.

24CheckPRZRLevel-LESSTHAN874[754adverseCNMT]Controlchargingandletdownasnecessary toreducePRZRleveltolessthan87%I75%adverseCNMT].Ifnecessary establish excessletdown.IFnoletdownavailable ANDCCWtoRCPsestablished, THENcyclechargingpumpsasnecessary tocontrolPRZRlevel.

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE20of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINEDNOTE:Foroptimumlongtermpressurecontrol,saturated conditions shouldberestoredinthePRZR.25VerifyPRZRLiquidTemperature (TI-424)-ATSATURATION FORDESIREDPRESSUREIFPRZRliquidtemperature low,THENenergizePRZRheatersasnecessary toestablish desiredtemperature.

26CheckRCSSubcooling BasedOnCoreExitT/Cs-BETWEENO'AND10'FUSINGFIGUREMINSUBCOOLING IFRCSpressurelessthan160psigf200psigadverseCNMT],THENgotoStep27.IFNOT,THENdepressurize usingnormalspray.IFnormalsprayNOTavailable andletdownisinservice,THENuse,auxiliary sprayforanyfurtherdepressurization.

ReturntoStep17b.IFauxiliary sprayNOTavailable, THENreturntoStep17a.27CheckCoolDownRateInRCSColdLegs-GREATERTHAN100'FINANY60MINUTESPERIODReturntoprocedure andstepineffect.28MaintainRCSPressureAndTemperature StableForAtLeast1Houra.Controlsteamdumpandfeedflowasnecessary b.Performactionsofotherprocedures ineffectwhichdonotcooldowntheRCSorincreaseRCSpressureuntiltheRCStemperature soakhasbeencompleted

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE21of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED29WHEN1HOURSoakIsComplete, THENContinueRCSCooldownAndDepressurization AsNecessary a.MaintainRCSpressureandcoldlegtemperature withinthelimitsofFigureSOAKLIMITSb.Establish andmaintaincooldownrateinRCScoldlegs-LESSTHAN50'FINANY60MINUTESPERIOD30VerifySIFlowNotRequired:

oRCSsubcooling basedoncoreexitT/Cs-GREATERTHANFIGUREMINSUBCOOLING oRVLISvindication:

oLevel-GREATERTHAN68%[73%adverseCNMT]-OR-oFluidfraction(anyRCPrunning)-GREATERTHAN80$ManuallyoperateSIpumpsasnecessary.

IFRCSsubcooling basedoncoreexitT/CsgreaterthanFigureMINSUBCOOLING andnoRCPrunning,THENperformthefollowing:

a.Establish conditions forstartinganRCP:oBus11AorllBenergized oRefertoAttachment RCPSTARTb.IFconditions established, THENstartoneRCP.

1IVy EOP:FR-P.1T1TLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE22of22STEPACTION/EXPECTED RESPONSERESPONSENOTOBTAINED31ReturnToProcedure AndStepInEffect-END-

EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE1of1FR-P.1APPENDIXLISTTITLEPAGES1)FIGUREMINSUBCOOLING 2)FIGURESOAKLIMITS3)ATTACHMENT RCPSTART4)ATTACHMENT SD-15)ATTACHMENT CNMTRECIRCFANS6)ATTACHMENT N2PORVS7)ATTACHMENT SIFLUSH

~V EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE1of1FIGUREMINSUBCOOLING NOTE:Subcooling Margin=Saturation Temperature FromFigureBelow[-]CoreExitT/CIndication RC25002400230022002100200019001800.17001600150013001200110010009008007006005004003002001000SPRESSURE(PSIG)RCSPRESSUREINCREHENTS 20PSIGSUBCOOLED REGIONADVERSECNHTNORHALCNHTINADE(UATE SUBCOOLINGREGIONTEMPERATURE INCREHENTS 10'F0200250300350400450500550600650700COREEXITSATURATION TEHPERATURE

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EOP:FR-P.1TITLE:RESPONSETOIMMINENTPRESSURIZED THERMALSHOCKCONDITION REV:8PAGE1of1RCS2500-240023002200210020001900ISOO170016001500140013001200110010009008007006005004003002001000PRESSURE(PSIG)RCSPRESSUREINCREMENTS 20PSIGFIGURESOAKLIMITSREMAINBELOWCURVETEMPERATURE INCREMENTS 10'F200250300350400450500550600650700RCSCOLDLEGTEMPERATURE

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