ML17266A519: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
Line 17: | Line 17: | ||
=Text= | =Text= | ||
{{#Wiki_filter: | {{#Wiki_filter:Emergency Procedure 2-0120042 Rev0LOCA(~)Page1of21FLORIDAPOWER&LIGHT'OMPANY ST.LUCIEUNIT2EMERGENCY PROCEDURE NUMBER2-0120042 REVISION0October29,1981MSSOFCOOLANTACCIDENTQ.OCA)REVAPPROVALFRG.PLTMGRDATEDATETOTALNO.OFPAGES21 FLORIDAPOWER&LIGHTCOMPANYST.LUCIEPLANTUNIT2EMERGENCY PROCEDURE NUMBER2-0120042 (LOCA)REVISION0Page2of21LOCA1.0SCOPEThisprocedure providesinstructions totheoperatorintheeventofasmallorlargebreaklossofcoolantcondition. | ||
20SYMPTOMS: | |||
2.1Decreasing przrpressF1Indications PI-1102A,PI-1102B,PI-1102C,PI-1102DPR-1100OTE:2.1AlarmsH-9,H-10,H-l,H-2,H-3,H-14Pressurization levelmaynotalwaysbeatrueindication ofRCSfluidinventory. | |||
Pressurizer steamspaceruptures, voidformation elsewhere intheRCS,reference legflashingand/orfailuremaycauseindications whicharecontrarytothetrueRCSfluidinventory condition. | |||
2~2Decreasing przrlevel2'Indications Leakagegreaterthan'harging pumpcapacity. | |||
LI-1110X, LI-1110Y, LIC-1110X, LIC-1110Y, LR-1110X, LR-11102.2AlarmsH-17,H-18,H-25,H-26,H-29,H-302'REACTORRIP/TURBINE TRIP2'Indications CEA'sinserted(ADS)CoreMimicRPS-Ch1,RPS-Ch.4, RPS-Ch.7, RPS-Ch~91RPS-Reactor TripBreakersOPEN23AlarmsL-3,L-9,,L-ll,L-17,L-36sL-44sL-5,L-13sD-8L>>1.0$L-18 0 | |||
Page3of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042'EVISION 02.0SYMPTOMS: | |||
(Cont.)2.4SIAS/CISActuation 2.4Indications Przrpress<1600PSIAEquipment starts/isolates perTables1and%&beII2~5CSASSignal2.42'AlarmsR-6,R-16,R-26,R-3,P-3,P-13,P-23'ndications (Later)2'Increasing Containment | |||
: Pressure, Temperature andHumidity2'2.6Alarms(Later)Indications PIS-07-2A, PIS-07-2B, PIS-07-2C, PIS>>07-2D PR-07-4B, PR-07-5B, TR-07-3B, TR-07-5B, TI-07-3A, TI-07-5A, PI-07-4A, PI-07-5A2.7Increasing ReactorCavitySumpLevel2627M2~7AlarmsP-13,P-23 Indications LIS-07-6,FR-07.-3 AlarmsN-2I,H-29 2.8Hicontainment radiation 2.8Indications Laterr2'Quenchtankhighlevel,temperature, press2'2'AlarmsLaterIndications LIA-1116,TIA-1116,PIA-111629AlarmsH-16,H-24,H-32 | |||
Page4of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION02'SYMPTOMS: | |||
(Cont.)2.10Decreasing VCTlevel2.11Unbalanced chargingandletdownflowF10Indications LIC-22262'0AlarmsM-3,M-112.11Indications FIA-2202, HIC-1110PIA-22122.12Pressurizer safetyvalvesopenF11AlarmsM-5,M-13,M-152'2Indications (Later)2.13RCSsubcooling margindecrease2'.12Alarms(Later)2.13Indications (Later)2.14ReactorCoolantPumpsp.mpsmotorpurfledecreasing and/orerraticRCPpressuredifferential 2.13Alarms(Later)2'4Indications (Later)2.14Alarms(Later) | |||
Page5of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION030AUTOMATIC ACTIONS:3.1ReactorTrip32TurbineTrip33CIAS34SIAS35CSAS3.6RAS3.1'IH/LPorLowPrzrPressure3.2Reactortripsturbine3.3SIASinitiates 3'RCSpress<1600PSIA3i5Highcontainment pressure3.6RWTlevel3feetmeasured Page6of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION04~0IMMEDIATE OPERATORACTION4.1EnsureImmediate OperatorActionsforareactortriphave4.1~1Anyautofunctions requiredhaveoperatedproperly42IfSIASwascausedbylowRCSpressure4.2a)VerifyCEA'sinserted>5sec.4.2b)Stoptheoperating RCPsIMPORTANT: | |||
~1r!r,,Figure2."'SATURATIOH/SUBCQQLB'(G@lid~.gcg2g'dPg'~'aoo''28QO~'';.':-=.,"..2600.',::,':.'".':':.24002200'.'-'''-'""-''.-"'-"="'-'-"' | AfterRCP'sarestopped,immediately refertoEP2-0120043 Inadequate CoreCoolingOTEObserveallavaQ.able indications todetermine conditions withinRCS:SMMdisplay,RCS-T>,RCS-T,incorethermocouple, RCSpressDetermine ifRCSissubcoolecf orsaturated. | ||
Figure2willassistinthisdetermination. | |||
4.3ChecktheESFASBypassStatusboard4'Reason:Toensureavailabili tyofequipment forautofunctions. | |||
4.4EnsureSIAS,CISarefunctioning properly4.4RefertoTableITableII~pccn~VOverfeeding theS/Gsmaycauseexcessive cooldownDonotexceed75/HRcooldownrate4'Establish andmaintainS/Glevels865X4.5UsemainorAFW4.6Ifcontainment pressureapproaches 10PSIG,initiateCSAS.4.6EnsureCSAScomponents function.- | |||
RefertoTableIII4.7Classifytheeventasconditions dictate,'ccording totheemergency plan4.7Implement theemergency planasnecessary | |||
~1r!r,,Figure2."'SATURATIOH/SUBCQQLB'(G | |||
@lid~.gcg2g'dPg'~'aoo''28QO~'';.':-=.,"..2600 | |||
.',::,':.'".':':.24002200'.'-'''-'""-''.-"'-"="'-'-"'2QQO 180016001400,~':*'.".'..:: | |||
-'."::-'"P 1200-.1QQQr400'UBCOOLEO REGION't5QrSUBCCOL1NG 20F"SUBCOOLEttG AfLlE.S''URATi0SUPERHEAT REGEOi'l~:2nO'0300350,40045050055Q600"650700RCSTEt'~PERATURE THF Page8of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEI'AFETY.".INJECTION ACTUATION SIGNALSIASRTGB206LefttoRihtTwo(2)CCWPPS2A,2B,or2C.Condition ONCheckTwo(2)CCWtoFuelPoolHXIsolation ValvesMV-14-17, MV-14-18ClosedFour(4)CCWHDRNon-essential Isolation ValvesHCV-14-8A, HCV-14-8B, HCV-14-9, HVC-14-10 ClosedTwo(2)CCWOutletfromshutdownHX2A,2B,.Valves,HCV-14-3A, HCV-14-3B | |||
~enTwo(2)LPSIPPSTwo(2)HPSIPPSkFour(4)LPSIDischtoLoopsHCV-3615, HCV-3625, HCV-3635, HCV-3645Eight(8)HPSIDischtoLoopsHCV-3617, HCV-3627, HCV-3637, HCV>>3647-HeaderAHCV-3616,HCV-3626,HCV-3636,HCV-3646-HeaderBTwo(2)HPSIPPFilltoSIT'sV3572,V3571Two(2)SI"TesttoRWTI-SE-03-2A, I-SE-03-2BFour(4)SITankIsolation ValvesV3614,V3624,V3634,V3644Four(4)SITankFill/Drain ValvesI-SE-03-1A,I-SE-03-1B, I-SE<<03-1C,'-SE-03-1D Four(4)SICheckLeakageTestHCV<<3618,HCV-3628,HCV-3638,HCV-3648~enClosedClosed~enClosedClosedFour(4)FWPDischarge Isolation ValvesHCV<<09-1A, HCV-09-2A, HCV-09-1B, HCV-09-2B ClosedFour(4)CCWTo/FromRCP'sHCV-14-1, HCV-14-2, HCV-14-7, HCV-14-6Closed Page9of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION0TABLEI(Cont.)SAFETYINJECTIONACTUATION SIGNALTWO(2)Containment SumpIsolation LCV<<07-11A,LCV-07-11BRTGB205LefttoRihtOne(1)BAMakeupValveV2512Two(2)BAGravityFeedV2509,V2508One(1)VCTDischarge V2501Two(2)LetdownIsolation V2516,V2515T&i~>0>Two(2IntakeCoolWtrPP's2A,2BThree(3)IntakeCoolWtrIsolation ValvesMV-21-3,MV-21-4,MV-21-2RTGB201Two(2)DieselGen2A,2BHVAVPanelLefttoRihtFour(4)RABMainSupplyandECCSExhaustFans2-HVS-4A, 2-HVE-9A, 2-HVS-4B, 2-HVE-9BCONDITION CHECKClosedClosed~OeeClosedClosedClosedFour(4)Containment FanCooler2-HVS-lA, 2-HVS-lB, 2-HVS-1C, 2-HVS-1DEight(8)ECCSIsolation DampersDSA,D6A,D9A,D12A,D5B,D6B,D9B,D12BClosedTwo(2)RxSupport&Cavity-Cool.Fans2-HVS-2A, 2-HVS-2B, 2-HVE-3A, 2-HVE-3BOffNOTE:Anyspareequipment thatisrunning,andnotneededforcontrolling thisincidentshouldbeSTOPPED. | |||
Page10of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIICONTAINMENT ISOLATION ACTUATION SIGNALCIAS)RTGB206LefttoRihtTWO(2)SITank,toRWTI-SE-03-2A, I-SE-03-2BCONDITION CHECKClosedPive(5)SITankSampleIsolation ValvesPCV-03-1A, FCV-03-1B, FCV-03-1C, FCV>>03-1D | |||
&FCV-03-1E ClosedFour(4)S/GBlowdownIsolation ValvesFCV-23-3, FCV-23-5, FCV-23-4, | |||
&PCV-23-6SampleFCV-23-7, FCV-23-9Two(2)ContainSumpIsolation ValvesLCV>>07-11A,LCV-07-11BSix(6)RCS&PRZRSampleIsolation ValvesV5200,V5201,=V5202,V5203,V5204,V5205One(1)PrimaryWaterIsolation HCV-15-1One(1)Instrument AirIsolation HCV-18-1One(1)NSupplyIsolation V6741Two(2)WasteGasIsolation V6750,V6718Two(2)RCPBleed-off Isolation V2505,'2524ClosedClosedClosedClosedClosedClosedClosedClosedTwo(2)RDTIsolation V6341,V6342RTGB205Three(3)LetdownIsolation ValvesV2516,V2522,V2515RTGB201Two(2)DieselGen.2A,2BHVACPanelLefttoRihtTwo(2)ShieldBldg.Vent.&ControlRoomPilterFans2-HVS-13A, 2-HVE-6APour(4)ControlRoom.Isolation ValvesPCV-25-24, FCV-25-17, FCV-25-18, FCV-25-16 Two(2)ShieldBldg.Vent&ControlRoomPilterFans2-HVS-13B, 2HVE6BPour(4)ControlRoom.Isolation ValvesFCV<<25-25, FCV-25-14, PCV-25-15, PCV-25-19 ClosedClosedClosedClosed | |||
. | .Page11of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEII(CONT.)CONTAINMENT ISOLATION'ACTUATION SIGNALCIAS)CONDITION CHECKTwo(2)Containment PurgeExhaustFan2-HVE-SA, 2-HVE-SBSix(6)Containment PurgeIsolation ValvesFCV-25-1, FCV-25-3, FCV-25-5, FCV>>25-6, FCV-25%,FCV-25-2OffClosedThree(3)Continuous Containment H2PurgeIsolatdon FCV-25-20, VCV-25-26, VCV-25-21 ClosedTwo(2)ShieldBldg.Vent.Isolation ValvesFCV-25-32, FCV-25-33 0enTwo(2)FuelBldg.Emerg.Vent.Isolation ValvesFCV-25-30, FCV-25-31 Six(6)Containment SampleIsolation ValvesFCV-26-2, FCV-26%,FCV-26-6, FCV-26-1, FCV-26-3$ | ||
FCV-26-5(RTGB206)'ClosedClosed Page12of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIIICONTAINMENT SPRAYACTUATION SIGNAL'ONDITION CHECKTvo(2)Containment SprayPumps2A,2BOnTwo(2)Containment SprayHDRIsolation ValvesFCV-07-1A, FCV-07-1B | |||
~OenTwo(2)IodineRemovalSystemPumps2A,2BOnTwo(2)IodineRemovalSystemIsolation ValvesI-SE-07-3A, I-SE>>07-3B OEenNOTE:VerifFlavonFI-07-1A, andFI-07-1B Page13of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION050SUBSEUENTACTIONSCHECK5.1RefertoReactorTrip/Turbine Trip,2-0030130 andensurethatallsubsequent actions(section5)havebeenorarebeingperformed, 5.2Whencontainment pressuredecreases to<10psig,StoplAand1BCS.pps.CloseFCV-07-1A, FCV-07-1B StopIodineRemovalPPs2A,2BCloseIodineRemovalSystemIsolation. | |||
valvesI-SE-07-3A, 3B5.3Withinone(1)hour,butwithoutexception nolaterthanone(1)hour,~stoRCS/BAMTborationviathechargingpumps.5.4Conductarearadiation surveysassoonaspossibletodetermine extentofdamage.5'Implement theEmergency Planasnecessary inaccordance withEP3100021E. | |||
5.6CommenceRCScooldownassoonaspossibleandinanycasewithinone(1)hour.CAUTION:EnsureRCSismaintained inasubcooled condition. | |||
AfteranySIAS,operatetheSISuntilRCShotandcoldlegtemperatures areatleast50Fbelowsaturation temperature fortheRCSpressure. | |||
5.7Ensureproperoperation ofthesafetyinfection systembycheckingflowratesandSITlevels.5~8.Ifsteamdumptocondenser isavailable closetheatmospheric steamdumpandbegindumpingsteamtothecondenser. | |||
5.9Ifoffsitepowerislost,steamdumptotheatmosphere mustbeusedforcooldown. | |||
CAUTION:Donotexceed75F/Hourcooldownrate.5'0Continueauxiliary feedwater flowtothesteamgenerators duringcooldown. | |||
5.11Reducesteamgenerator pressuretolessthan985psig.(Safetysetting)RefertoOP2-0030127, ReactorPlantCooldown.. | |||
Page14of21LOCAEMERGENCY PROCEDURE NUMBER2<<0120042 REVISION05.0SUBSEUENTACTIONS:(Cont.)CHECK5~12Immediately priortoRASensurepowerisavailable toV3659,V3660,V3495,V3496.5+13EnsureRASoccurswhentheRWTleveldecreases to3ftindicated-(4ft.frombottomofthetank).TableIVpage16maybe-usedasacheck1<st.5.14IfallHPSIpumpsandchargingpumpsareoperating andtheHPSIpumpsaredelivering lessthan75GPMperpump,stopthechargingpumpsoneatatime,thenHPSIpumpsoneatatimeuntilonlyoneHPSIpumpremainsoperating. | |||
5.15CheckRABradiation levelsandsumplevelsafterRAStodetectSISleakage.Evenifleaksaredetected, atleastoneHPSIpumpmustremaininoperation toprovideflowtothecore.5'6Establish radiation areasandwarningswherenecessary 5.17Withoutexception andwithinten(10)hoursofthe'incident occurance, initiatehotleginfection. | |||
Thiswillbeincon)unction withtheexistingcoldleginfection. | |||
5~18Ifthepressureandinventory controlwiththeSIScannotbeestablished aftereighthoursandRCSpressislessthan300PSIG,continuehotandcoldleginjection. | |||
Page15of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIVRECIRCULATION ACTUATION SIGNALCONDITION CHECKTwo(2),LPSIPPS2A,2BOffTwo(2)SIPPRecirc.toRVZIsolation ValvesV3659,V3660ClosedTwo(2)MinimumFlowIsolation ValvesV-,3495,V3496ClosedTwo(2)Containment SumpOutletValvesMV-07-2A, MV-07-2B~en.Two(2)RMTOutletValvesMV-07-1'A,MV-07-1BClosed EHERGENCY PROCEDURE NUHBER2-0120042 REVISION0Page16of21LOCAI15'SUBSEVENTACTIONS:(Cont.)1)Verifysubcooling bycheckingthesaturation pressurefortheexistingtemperature. | |||
2'RealigntheSISforcoldleginfection. | |||
3.)Continue tomaintainsubcooling andreduceRCSpressureto<268PSIAforshutdowncoolingbyreducingtheflowdelivered bythehighpressureinjection andchargingpumps.4'Whilereducingpressureandaftershutdowncoolingisinitiated, maintainRCSpressurewiththechargingpumpsandf}-O/ortheHPSIpumpstomaintainatleast50subcooling | |||
~5.19Ifpressureandinventory controlwiththeSISareestablished aftereight(8)hoursandRCSpressureisgreaterthan300PSIG,conductoneofthefollowing activities, (inorderofdecreasing preference.) | |||
Thiscondition indicates thesystemisrefilledandsubcooling hasoccurred. | |||
519.1OR5.19.2Continuetoremovedecayheatusingauxiliary feedwater andsteamdumpsifadequatecondensate isavailable and,(5.19.1) cannotbeimplemented. | |||
OR5~19.3If5.19.1or5.19~2above,cannotbeimplemented, Openprzrpoweroperatedreliefvalvesandalignthesafetyinfection systemforcoldleginfection. | |||
ToopenthePORVs,pulltwoRPSprzrhighpressuretripunitbistables. | |||
520Placebothhydrogenrecombiners inservice.(SeeAppendix"A")5'1Ifcontainment hydrogenconcentration cannotbemaintained below3.5Xasindicated onthecontainment hydrogensamplesystem,thenplacethecontainment hydrogenpurgesysteminoperation. | |||
(SeeAppendix"B") | |||
Page17of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION06+0PURPOSEANDDISCUSSION: | |||
Thisprocedure providesinstructions tobefollowedintheeventthatleakagefromtheReactorCoolantSystemexceedsthecapacityoftheoperablechargingpumps.Mhenconditions intheReactorCoolantSystemdegrade'to thepointthataLimitingSafetySystemSettingisapproached theReactorProtective System.willinitiateareactortrip,makingthereactorsubcritical. | |||
Thisvillstoptheproduction ofpowerinthecore.Coolingofthecore,however,mustcontinuetoremovetheconsiderable decayheatthatremains.TheSafetyInfection Systemautomatically providesaflowofsubcooled watertothecorefordecayheatremoval.Failuretokeepthecorecoveredwillresultinoverheating ofthefuel,failureofthecladding, andareleaseofgrossamountsoffissionproductstothecontainment atmosphere. | |||
ThespectrumofbreakswhichwouldcauseaLOCAisfromapproximately at.2inchdiameterbreakuptoadouble-ended hotlegrupture.Foranexample:Analysisshowthattheflowfromanunrestricted | |||
.3inchdiameterbreakisapproximately 180GPMat2250PSIA.Ama)orconcernforthesesmallbreaksisthattheflowthroughthebreakmaynotbesufficient fordecayheatremoval.Inthosecircumstances itisimperative thatasecondary heatsinkbeavailable. | |||
ThisinturndictatestheuseoftheAuxiliary | |||
'Feedwater Systemasthemainfeed-water systemisdisabledduetoanSIAS.Operatoractionsshouldbedirectedtowardensuringproperoperation oftheSafetyInfection andContainment Isolation Systems,ensuringallautomatic functions haveinitiated | |||
: properly, andtakingactiontoprotectplantpersonnel. | |||
Longtermactionisdirectedtowardplacingtheplantinacoldshutdowncondition. | |||
ForsmallbreakswheretheECCSwillmaintainRCSvolumeandpressure, operatoractionmustbedirectedtowardestablishing andmaintaining subcooled c'onditions intheRCSduringthecooldowntopreventvoidformation Fig.4.4isaquickreference foroperators actions. | |||
Page18of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION06~0PURPOSEANDDISCUSSION: | |||
(Cont.)Someinstruments (valveposition, temperature, | |||
: pressure, levelindications, etc.)specified foruseinthisprocedure havenotbeendesignedforlongtermpostLOCAconditions insidecontainment. | |||
Therefore, theoperatorshouldbeespecially alertthatthepotential existsforerroneous indication after>15minuteshaveelapsedfollowing aLOCAevent.Ifthere'sahighradioactivity levelinthereactorcoolantsystem,circulation ofthisfluidinSDCmayresultinhighareareaioactivity readingsintheRAB.TheactivityleveloftheRCSshouldbedetermined priortoinitiating SDCflow.Itmaybenecessary tofilltheprzrsolidtoregainpressurecontrolandtoachieve50Fsubcooling. | |||
Ifthisisthecase,HPSIdischarge valveswillhave.tobecarefully throttled duringthecooldowntoreducesystempressure. | |||
EnsureHPSIflowtothecorecontinues afterRAS.DonotallowtheHPSIpumpstooperate"dead-headed". | |||
HPSIshutoffhead(noflow)1250PSIG.Donotexceed75F/hourcooldownrate.Ifconditions permit,attempttolocateandisolatethesourceoftheleak.Possibleleaklocations includebutarenotlimitedtothePORVs,theletdownlineandthesamplelines.Przrlevelmaynotalwaysbeatrueindicator ofRCSfluidinventory. | |||
Przr.steamspaceruptures, reference legfailures, andreference legflashingmaycauseindications whicharecontrarytotrueconditions. | |||
Allavailable indications shouldbeusedtoaidindiagnosing theeve'ntsincetheaccidentmaycauseirregularities inaparticular instrument readingsCriticalp'arameters mustbeverifiedwhenoneormoreconfirmatory indications areavailable. | |||
WiththeSubcooling MarginMonitor(SMM)operating | |||
: normally, usethenomograph onRTGB104inconjunction withtheSMMtoeliminate dependence onzsingleinstrument. | |||
WiththeSMMinoperable, refertothenomograph utilizing controlroomindicators suchasTHOT,przrpressure, andincorethermocouples todetermine theThmargintosaturation Subcooling margincanalsobedetermined bysubtracting hotlegtemperature fromprzrtemperature (TE-1101) | |||
~Takeappropriate actiontokeepcorecoveredorrefloodifitbecomespartially uncovered. | |||
Maintainorre-establish aheatremovalpath.RegainRCSpressureandlevelcontrol.Followlongtermshutdownprocedures inordertoassurethatboronprecip'itation doesnotoccur.I e | |||
Page19of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION07' | |||
==REFERENCES:== | ==REFERENCES:== | ||
C'),lSt.LucieUnitPlEmergency Procedures Unit/f2FSARSECT.1.0,6.0,9.0~7>C~E.genericLOCAguidelines | |||
<5SongsOIS023-3-.5-..6 8.9LundConsulting reporttoC~E.(Feb.6,1981)g,qDraftofNUREG-.0799~lNormalLogEntries't~WERg.Nransient indicators andrecordercharts.9e0APPROVAL: | |||
ReviewedbyPlantNuclearSafetyCommittee Approvedby/PlantManagerRevisionReviewedbyFacilityReviewGroupApprovedby/PlantManager191919 7 | |||
Page20of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0APPENDIX"A"PLACINGH2RECOMBINERS INSERVICEI.Placerecombiners inserviceasfollows:1A1B1.Ensurebreakers841262in480VMCC2A5(2A)and8'42103andin480VMCC2B6(2B)areclosed.2~Setthepoweradjustpotentiometer atzero(ooo)~3.Checkthatpowerisavailable tothepowersupplypanelbyobserving the"poweravailable" whitelightonthecontrolpanelisilluminated. | |||
4.SetthePowerOutSwitchonthecontrolpaneltothe"ON"position. | |||
Theredlightontheswitchwillilluminate. | |||
5~Gradually turnthePowerAdjustpotentiometer to70KWasindicated onthePowerOutWattmeter. | |||
CAUTION:Thereisalaginthemeterreading,soturnthepotentiometer knobslowly.Donotexceed75KW.6.Periodically checkthetemperature ofthethreethermocouples usingthetemperature channelselectorswitch.And,whenthetemperature reaches1250F,adjustthepoweradjustpotentiometer tomaintaintemperature between1250Fand1400F.CAUTION:Donotletthetemperature exceed1400Fasindicated bythethermocouple readout. | |||
Page21of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0APPENDIX"B"PLACINGCONTAINMENT H2PURGEINSERVICE2.3.II.Placecontainment H2purgeinserviceasfollcws:VerifyclosedV>>2538filterbypassvalves.UnlockandopenV-25-20and21suctionisolation valves.OpenV-25-35hydrogenpurgedischarge toventstack.,4~5~Start2HVE7Aor7B.UnlockandopenV-25-25andV-25-26makeupairforpurge6.ModulateFCV-25-9openasneededtomaintaincharcoalabsorbertemperature belowalarmpoint.CAUTION:Ensurethateither2HVE10Aor2HVE10Bisrunning~7.Periodically checkthestackradiation monitoring systemforincreasing gaseousandparticulate levels."LASTPAGE"Emergency Procedure 2-0120042 Rev0}} |
Revision as of 12:18, 29 June 2018
ML17266A519 | |
Person / Time | |
---|---|
Site: | Saint Lucie ![]() |
Issue date: | 10/29/1981 |
From: | FLORIDA POWER & LIGHT CO. |
To: | |
Shared Package | |
ML17212A963 | List: |
References | |
2-0120042, 2-120042, NUDOCS 8111050502 | |
Download: ML17266A519 (29) | |
Text
Emergency Procedure 2-0120042 Rev0LOCA(~)Page1of21FLORIDAPOWER&LIGHT'OMPANY ST.LUCIEUNIT2EMERGENCY PROCEDURE NUMBER2-0120042 REVISION0October29,1981MSSOFCOOLANTACCIDENTQ.OCA)REVAPPROVALFRG.PLTMGRDATEDATETOTALNO.OFPAGES21 FLORIDAPOWER&LIGHTCOMPANYST.LUCIEPLANTUNIT2EMERGENCY PROCEDURE NUMBER2-0120042 (LOCA)REVISION0Page2of21LOCA1.0SCOPEThisprocedure providesinstructions totheoperatorintheeventofasmallorlargebreaklossofcoolantcondition.
20SYMPTOMS:
2.1Decreasing przrpressF1Indications PI-1102A,PI-1102B,PI-1102C,PI-1102DPR-1100OTE:2.1AlarmsH-9,H-10,H-l,H-2,H-3,H-14Pressurization levelmaynotalwaysbeatrueindication ofRCSfluidinventory.
Pressurizer steamspaceruptures, voidformation elsewhere intheRCS,reference legflashingand/orfailuremaycauseindications whicharecontrarytothetrueRCSfluidinventory condition.
2~2Decreasing przrlevel2'Indications Leakagegreaterthan'harging pumpcapacity.
LI-1110X, LI-1110Y, LIC-1110X, LIC-1110Y, LR-1110X, LR-11102.2AlarmsH-17,H-18,H-25,H-26,H-29,H-302'REACTORRIP/TURBINE TRIP2'Indications CEA'sinserted(ADS)CoreMimicRPS-Ch1,RPS-Ch.4, RPS-Ch.7, RPS-Ch~91RPS-Reactor TripBreakersOPEN23AlarmsL-3,L-9,,L-ll,L-17,L-36sL-44sL-5,L-13sD-8L>>1.0$L-18 0
Page3of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042'EVISION 02.0SYMPTOMS:
(Cont.)2.4SIAS/CISActuation 2.4Indications Przrpress<1600PSIAEquipment starts/isolates perTables1and%&beII2~5CSASSignal2.42'AlarmsR-6,R-16,R-26,R-3,P-3,P-13,P-23'ndications (Later)2'Increasing Containment
- Pressure, Temperature andHumidity2'2.6Alarms(Later)Indications PIS-07-2A, PIS-07-2B, PIS-07-2C, PIS>>07-2D PR-07-4B, PR-07-5B, TR-07-3B, TR-07-5B, TI-07-3A, TI-07-5A, PI-07-4A, PI-07-5A2.7Increasing ReactorCavitySumpLevel2627M2~7AlarmsP-13,P-23 Indications LIS-07-6,FR-07.-3 AlarmsN-2I,H-29 2.8Hicontainment radiation 2.8Indications Laterr2'Quenchtankhighlevel,temperature, press2'2'AlarmsLaterIndications LIA-1116,TIA-1116,PIA-111629AlarmsH-16,H-24,H-32
Page4of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION02'SYMPTOMS:
(Cont.)2.10Decreasing VCTlevel2.11Unbalanced chargingandletdownflowF10Indications LIC-22262'0AlarmsM-3,M-112.11Indications FIA-2202, HIC-1110PIA-22122.12Pressurizer safetyvalvesopenF11AlarmsM-5,M-13,M-152'2Indications (Later)2.13RCSsubcooling margindecrease2'.12Alarms(Later)2.13Indications (Later)2.14ReactorCoolantPumpsp.mpsmotorpurfledecreasing and/orerraticRCPpressuredifferential 2.13Alarms(Later)2'4Indications (Later)2.14Alarms(Later)
Page5of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION030AUTOMATIC ACTIONS:3.1ReactorTrip32TurbineTrip33CIAS34SIAS35CSAS3.6RAS3.1'IH/LPorLowPrzrPressure3.2Reactortripsturbine3.3SIASinitiates 3'RCSpress<1600PSIA3i5Highcontainment pressure3.6RWTlevel3feetmeasured Page6of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION04~0IMMEDIATE OPERATORACTION4.1EnsureImmediate OperatorActionsforareactortriphave4.1~1Anyautofunctions requiredhaveoperatedproperly42IfSIASwascausedbylowRCSpressure4.2a)VerifyCEA'sinserted>5sec.4.2b)Stoptheoperating RCPsIMPORTANT:
AfterRCP'sarestopped,immediately refertoEP2-0120043 Inadequate CoreCoolingOTEObserveallavaQ.able indications todetermine conditions withinRCS:SMMdisplay,RCS-T>,RCS-T,incorethermocouple, RCSpressDetermine ifRCSissubcoolecf orsaturated.
Figure2willassistinthisdetermination.
4.3ChecktheESFASBypassStatusboard4'Reason:Toensureavailabili tyofequipment forautofunctions.
4.4EnsureSIAS,CISarefunctioning properly4.4RefertoTableITableII~pccn~VOverfeeding theS/Gsmaycauseexcessive cooldownDonotexceed75/HRcooldownrate4'Establish andmaintainS/Glevels865X4.5UsemainorAFW4.6Ifcontainment pressureapproaches 10PSIG,initiateCSAS.4.6EnsureCSAScomponents function.-
RefertoTableIII4.7Classifytheeventasconditions dictate,'ccording totheemergency plan4.7Implement theemergency planasnecessary
~1r!r,,Figure2."'SATURATIOH/SUBCQQLB'(G
@lid~.gcg2g'dPg'~'aoo28QO~;.':-=.,"..2600
.',::,':.'".':':.24002200'.'-'-'""-.-"'-"="'-'-"'2QQO 180016001400,~':*'.".'..::
-'."::-'"P 1200-.1QQQr400'UBCOOLEO REGION't5QrSUBCCOL1NG 20F"SUBCOOLEttG AfLlE.SURATi0SUPERHEAT REGEOi'l~:2nO'0300350,40045050055Q600"650700RCSTEt'~PERATURE THF Page8of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEI'AFETY.".INJECTION ACTUATION SIGNALSIASRTGB206LefttoRihtTwo(2)CCWPPS2A,2B,or2C.Condition ONCheckTwo(2)CCWtoFuelPoolHXIsolation ValvesMV-14-17, MV-14-18ClosedFour(4)CCWHDRNon-essential Isolation ValvesHCV-14-8A, HCV-14-8B, HCV-14-9, HVC-14-10 ClosedTwo(2)CCWOutletfromshutdownHX2A,2B,.Valves,HCV-14-3A, HCV-14-3B
~enTwo(2)LPSIPPSTwo(2)HPSIPPSkFour(4)LPSIDischtoLoopsHCV-3615, HCV-3625, HCV-3635, HCV-3645Eight(8)HPSIDischtoLoopsHCV-3617, HCV-3627, HCV-3637, HCV>>3647-HeaderAHCV-3616,HCV-3626,HCV-3636,HCV-3646-HeaderBTwo(2)HPSIPPFilltoSIT'sV3572,V3571Two(2)SI"TesttoRWTI-SE-03-2A, I-SE-03-2BFour(4)SITankIsolation ValvesV3614,V3624,V3634,V3644Four(4)SITankFill/Drain ValvesI-SE-03-1A,I-SE-03-1B, I-SE<<03-1C,'-SE-03-1D Four(4)SICheckLeakageTestHCV<<3618,HCV-3628,HCV-3638,HCV-3648~enClosedClosed~enClosedClosedFour(4)FWPDischarge Isolation ValvesHCV<<09-1A, HCV-09-2A, HCV-09-1B, HCV-09-2B ClosedFour(4)CCWTo/FromRCP'sHCV-14-1, HCV-14-2, HCV-14-7, HCV-14-6Closed Page9of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION0TABLEI(Cont.)SAFETYINJECTIONACTUATION SIGNALTWO(2)Containment SumpIsolation LCV<<07-11A,LCV-07-11BRTGB205LefttoRihtOne(1)BAMakeupValveV2512Two(2)BAGravityFeedV2509,V2508One(1)VCTDischarge V2501Two(2)LetdownIsolation V2516,V2515T&i~>0>Two(2IntakeCoolWtrPP's2A,2BThree(3)IntakeCoolWtrIsolation ValvesMV-21-3,MV-21-4,MV-21-2RTGB201Two(2)DieselGen2A,2BHVAVPanelLefttoRihtFour(4)RABMainSupplyandECCSExhaustFans2-HVS-4A, 2-HVE-9A, 2-HVS-4B, 2-HVE-9BCONDITION CHECKClosedClosed~OeeClosedClosedClosedFour(4)Containment FanCooler2-HVS-lA, 2-HVS-lB, 2-HVS-1C, 2-HVS-1DEight(8)ECCSIsolation DampersDSA,D6A,D9A,D12A,D5B,D6B,D9B,D12BClosedTwo(2)RxSupport&Cavity-Cool.Fans2-HVS-2A, 2-HVS-2B, 2-HVE-3A, 2-HVE-3BOffNOTE:Anyspareequipment thatisrunning,andnotneededforcontrolling thisincidentshouldbeSTOPPED.
Page10of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIICONTAINMENT ISOLATION ACTUATION SIGNALCIAS)RTGB206LefttoRihtTWO(2)SITank,toRWTI-SE-03-2A, I-SE-03-2BCONDITION CHECKClosedPive(5)SITankSampleIsolation ValvesPCV-03-1A, FCV-03-1B, FCV-03-1C, FCV>>03-1D
&FCV-03-1E ClosedFour(4)S/GBlowdownIsolation ValvesFCV-23-3, FCV-23-5, FCV-23-4,
&PCV-23-6SampleFCV-23-7, FCV-23-9Two(2)ContainSumpIsolation ValvesLCV>>07-11A,LCV-07-11BSix(6)RCS&PRZRSampleIsolation ValvesV5200,V5201,=V5202,V5203,V5204,V5205One(1)PrimaryWaterIsolation HCV-15-1One(1)Instrument AirIsolation HCV-18-1One(1)NSupplyIsolation V6741Two(2)WasteGasIsolation V6750,V6718Two(2)RCPBleed-off Isolation V2505,'2524ClosedClosedClosedClosedClosedClosedClosedClosedTwo(2)RDTIsolation V6341,V6342RTGB205Three(3)LetdownIsolation ValvesV2516,V2522,V2515RTGB201Two(2)DieselGen.2A,2BHVACPanelLefttoRihtTwo(2)ShieldBldg.Vent.&ControlRoomPilterFans2-HVS-13A, 2-HVE-6APour(4)ControlRoom.Isolation ValvesPCV-25-24, FCV-25-17, FCV-25-18, FCV-25-16 Two(2)ShieldBldg.Vent&ControlRoomPilterFans2-HVS-13B, 2HVE6BPour(4)ControlRoom.Isolation ValvesFCV<<25-25, FCV-25-14, PCV-25-15, PCV-25-19 ClosedClosedClosedClosed
.Page11of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEII(CONT.)CONTAINMENT ISOLATION'ACTUATION SIGNALCIAS)CONDITION CHECKTwo(2)Containment PurgeExhaustFan2-HVE-SA, 2-HVE-SBSix(6)Containment PurgeIsolation ValvesFCV-25-1, FCV-25-3, FCV-25-5, FCV>>25-6, FCV-25%,FCV-25-2OffClosedThree(3)Continuous Containment H2PurgeIsolatdon FCV-25-20, VCV-25-26, VCV-25-21 ClosedTwo(2)ShieldBldg.Vent.Isolation ValvesFCV-25-32, FCV-25-33 0enTwo(2)FuelBldg.Emerg.Vent.Isolation ValvesFCV-25-30, FCV-25-31 Six(6)Containment SampleIsolation ValvesFCV-26-2, FCV-26%,FCV-26-6, FCV-26-1, FCV-26-3$
FCV-26-5(RTGB206)'ClosedClosed Page12of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIIICONTAINMENT SPRAYACTUATION SIGNAL'ONDITION CHECKTvo(2)Containment SprayPumps2A,2BOnTwo(2)Containment SprayHDRIsolation ValvesFCV-07-1A, FCV-07-1B
~OenTwo(2)IodineRemovalSystemPumps2A,2BOnTwo(2)IodineRemovalSystemIsolation ValvesI-SE-07-3A, I-SE>>07-3B OEenNOTE:VerifFlavonFI-07-1A, andFI-07-1B Page13of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION050SUBSEUENTACTIONSCHECK5.1RefertoReactorTrip/Turbine Trip,2-0030130 andensurethatallsubsequent actions(section5)havebeenorarebeingperformed, 5.2Whencontainment pressuredecreases to<10psig,StoplAand1BCS.pps.CloseFCV-07-1A, FCV-07-1B StopIodineRemovalPPs2A,2BCloseIodineRemovalSystemIsolation.
valvesI-SE-07-3A, 3B5.3Withinone(1)hour,butwithoutexception nolaterthanone(1)hour,~stoRCS/BAMTborationviathechargingpumps.5.4Conductarearadiation surveysassoonaspossibletodetermine extentofdamage.5'Implement theEmergency Planasnecessary inaccordance withEP3100021E.
5.6CommenceRCScooldownassoonaspossibleandinanycasewithinone(1)hour.CAUTION:EnsureRCSismaintained inasubcooled condition.
AfteranySIAS,operatetheSISuntilRCShotandcoldlegtemperatures areatleast50Fbelowsaturation temperature fortheRCSpressure.
5.7Ensureproperoperation ofthesafetyinfection systembycheckingflowratesandSITlevels.5~8.Ifsteamdumptocondenser isavailable closetheatmospheric steamdumpandbegindumpingsteamtothecondenser.
5.9Ifoffsitepowerislost,steamdumptotheatmosphere mustbeusedforcooldown.
CAUTION:Donotexceed75F/Hourcooldownrate.5'0Continueauxiliary feedwater flowtothesteamgenerators duringcooldown.
5.11Reducesteamgenerator pressuretolessthan985psig.(Safetysetting)RefertoOP2-0030127, ReactorPlantCooldown..
Page14of21LOCAEMERGENCY PROCEDURE NUMBER2<<0120042 REVISION05.0SUBSEUENTACTIONS:(Cont.)CHECK5~12Immediately priortoRASensurepowerisavailable toV3659,V3660,V3495,V3496.5+13EnsureRASoccurswhentheRWTleveldecreases to3ftindicated-(4ft.frombottomofthetank).TableIVpage16maybe-usedasacheck1<st.5.14IfallHPSIpumpsandchargingpumpsareoperating andtheHPSIpumpsaredelivering lessthan75GPMperpump,stopthechargingpumpsoneatatime,thenHPSIpumpsoneatatimeuntilonlyoneHPSIpumpremainsoperating.
5.15CheckRABradiation levelsandsumplevelsafterRAStodetectSISleakage.Evenifleaksaredetected, atleastoneHPSIpumpmustremaininoperation toprovideflowtothecore.5'6Establish radiation areasandwarningswherenecessary 5.17Withoutexception andwithinten(10)hoursofthe'incident occurance, initiatehotleginfection.
Thiswillbeincon)unction withtheexistingcoldleginfection.
5~18Ifthepressureandinventory controlwiththeSIScannotbeestablished aftereighthoursandRCSpressislessthan300PSIG,continuehotandcoldleginjection.
Page15of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0TABLEIVRECIRCULATION ACTUATION SIGNALCONDITION CHECKTwo(2),LPSIPPS2A,2BOffTwo(2)SIPPRecirc.toRVZIsolation ValvesV3659,V3660ClosedTwo(2)MinimumFlowIsolation ValvesV-,3495,V3496ClosedTwo(2)Containment SumpOutletValvesMV-07-2A, MV-07-2B~en.Two(2)RMTOutletValvesMV-07-1'A,MV-07-1BClosed EHERGENCY PROCEDURE NUHBER2-0120042 REVISION0Page16of21LOCAI15'SUBSEVENTACTIONS:(Cont.)1)Verifysubcooling bycheckingthesaturation pressurefortheexistingtemperature.
2'RealigntheSISforcoldleginfection.
3.)Continue tomaintainsubcooling andreduceRCSpressureto<268PSIAforshutdowncoolingbyreducingtheflowdelivered bythehighpressureinjection andchargingpumps.4'Whilereducingpressureandaftershutdowncoolingisinitiated, maintainRCSpressurewiththechargingpumpsandf}-O/ortheHPSIpumpstomaintainatleast50subcooling
~5.19Ifpressureandinventory controlwiththeSISareestablished aftereight(8)hoursandRCSpressureisgreaterthan300PSIG,conductoneofthefollowing activities, (inorderofdecreasing preference.)
Thiscondition indicates thesystemisrefilledandsubcooling hasoccurred.
519.1OR5.19.2Continuetoremovedecayheatusingauxiliary feedwater andsteamdumpsifadequatecondensate isavailable and,(5.19.1) cannotbeimplemented.
OR5~19.3If5.19.1or5.19~2above,cannotbeimplemented, Openprzrpoweroperatedreliefvalvesandalignthesafetyinfection systemforcoldleginfection.
ToopenthePORVs,pulltwoRPSprzrhighpressuretripunitbistables.
520Placebothhydrogenrecombiners inservice.(SeeAppendix"A")5'1Ifcontainment hydrogenconcentration cannotbemaintained below3.5Xasindicated onthecontainment hydrogensamplesystem,thenplacethecontainment hydrogenpurgesysteminoperation.
(SeeAppendix"B")
Page17of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION06+0PURPOSEANDDISCUSSION:
Thisprocedure providesinstructions tobefollowedintheeventthatleakagefromtheReactorCoolantSystemexceedsthecapacityoftheoperablechargingpumps.Mhenconditions intheReactorCoolantSystemdegrade'to thepointthataLimitingSafetySystemSettingisapproached theReactorProtective System.willinitiateareactortrip,makingthereactorsubcritical.
Thisvillstoptheproduction ofpowerinthecore.Coolingofthecore,however,mustcontinuetoremovetheconsiderable decayheatthatremains.TheSafetyInfection Systemautomatically providesaflowofsubcooled watertothecorefordecayheatremoval.Failuretokeepthecorecoveredwillresultinoverheating ofthefuel,failureofthecladding, andareleaseofgrossamountsoffissionproductstothecontainment atmosphere.
ThespectrumofbreakswhichwouldcauseaLOCAisfromapproximately at.2inchdiameterbreakuptoadouble-ended hotlegrupture.Foranexample:Analysisshowthattheflowfromanunrestricted
.3inchdiameterbreakisapproximately 180GPMat2250PSIA.Ama)orconcernforthesesmallbreaksisthattheflowthroughthebreakmaynotbesufficient fordecayheatremoval.Inthosecircumstances itisimperative thatasecondary heatsinkbeavailable.
ThisinturndictatestheuseoftheAuxiliary
'Feedwater Systemasthemainfeed-water systemisdisabledduetoanSIAS.Operatoractionsshouldbedirectedtowardensuringproperoperation oftheSafetyInfection andContainment Isolation Systems,ensuringallautomatic functions haveinitiated
- properly, andtakingactiontoprotectplantpersonnel.
Longtermactionisdirectedtowardplacingtheplantinacoldshutdowncondition.
ForsmallbreakswheretheECCSwillmaintainRCSvolumeandpressure, operatoractionmustbedirectedtowardestablishing andmaintaining subcooled c'onditions intheRCSduringthecooldowntopreventvoidformation Fig.4.4isaquickreference foroperators actions.
Page18of21LOCAEMERGENCY PROCEDURE NUMBER2>>0120042 REVISION06~0PURPOSEANDDISCUSSION:
(Cont.)Someinstruments (valveposition, temperature,
- pressure, levelindications, etc.)specified foruseinthisprocedure havenotbeendesignedforlongtermpostLOCAconditions insidecontainment.
Therefore, theoperatorshouldbeespecially alertthatthepotential existsforerroneous indication after>15minuteshaveelapsedfollowing aLOCAevent.Ifthere'sahighradioactivity levelinthereactorcoolantsystem,circulation ofthisfluidinSDCmayresultinhighareareaioactivity readingsintheRAB.TheactivityleveloftheRCSshouldbedetermined priortoinitiating SDCflow.Itmaybenecessary tofilltheprzrsolidtoregainpressurecontrolandtoachieve50Fsubcooling.
Ifthisisthecase,HPSIdischarge valveswillhave.tobecarefully throttled duringthecooldowntoreducesystempressure.
EnsureHPSIflowtothecorecontinues afterRAS.DonotallowtheHPSIpumpstooperate"dead-headed".
HPSIshutoffhead(noflow)1250PSIG.Donotexceed75F/hourcooldownrate.Ifconditions permit,attempttolocateandisolatethesourceoftheleak.Possibleleaklocations includebutarenotlimitedtothePORVs,theletdownlineandthesamplelines.Przrlevelmaynotalwaysbeatrueindicator ofRCSfluidinventory.
Przr.steamspaceruptures, reference legfailures, andreference legflashingmaycauseindications whicharecontrarytotrueconditions.
Allavailable indications shouldbeusedtoaidindiagnosing theeve'ntsincetheaccidentmaycauseirregularities inaparticular instrument readingsCriticalp'arameters mustbeverifiedwhenoneormoreconfirmatory indications areavailable.
WiththeSubcooling MarginMonitor(SMM)operating
- normally, usethenomograph onRTGB104inconjunction withtheSMMtoeliminate dependence onzsingleinstrument.
WiththeSMMinoperable, refertothenomograph utilizing controlroomindicators suchasTHOT,przrpressure, andincorethermocouples todetermine theThmargintosaturation Subcooling margincanalsobedetermined bysubtracting hotlegtemperature fromprzrtemperature (TE-1101)
~Takeappropriate actiontokeepcorecoveredorrefloodifitbecomespartially uncovered.
Maintainorre-establish aheatremovalpath.RegainRCSpressureandlevelcontrol.Followlongtermshutdownprocedures inordertoassurethatboronprecip'itation doesnotoccur.I e
Page19of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION07'
REFERENCES:
C'),lSt.LucieUnitPlEmergency Procedures Unit/f2FSARSECT.1.0,6.0,9.0~7>C~E.genericLOCAguidelines
<5SongsOIS023-3-.5-..6 8.9LundConsulting reporttoC~E.(Feb.6,1981)g,qDraftofNUREG-.0799~lNormalLogEntries't~WERg.Nransient indicators andrecordercharts.9e0APPROVAL:
ReviewedbyPlantNuclearSafetyCommittee Approvedby/PlantManagerRevisionReviewedbyFacilityReviewGroupApprovedby/PlantManager191919 7
Page20of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0APPENDIX"A"PLACINGH2RECOMBINERS INSERVICEI.Placerecombiners inserviceasfollows:1A1B1.Ensurebreakers841262in480VMCC2A5(2A)and8'42103andin480VMCC2B6(2B)areclosed.2~Setthepoweradjustpotentiometer atzero(ooo)~3.Checkthatpowerisavailable tothepowersupplypanelbyobserving the"poweravailable" whitelightonthecontrolpanelisilluminated.
4.SetthePowerOutSwitchonthecontrolpaneltothe"ON"position.
Theredlightontheswitchwillilluminate.
5~Gradually turnthePowerAdjustpotentiometer to70KWasindicated onthePowerOutWattmeter.
CAUTION:Thereisalaginthemeterreading,soturnthepotentiometer knobslowly.Donotexceed75KW.6.Periodically checkthetemperature ofthethreethermocouples usingthetemperature channelselectorswitch.And,whenthetemperature reaches1250F,adjustthepoweradjustpotentiometer tomaintaintemperature between1250Fand1400F.CAUTION:Donotletthetemperature exceed1400Fasindicated bythethermocouple readout.
Page21of21LOCAEMERGENCY PROCEDURE NUMBER2-0120042 REVISION0APPENDIX"B"PLACINGCONTAINMENT H2PURGEINSERVICE2.3.II.Placecontainment H2purgeinserviceasfollcws:VerifyclosedV>>2538filterbypassvalves.UnlockandopenV-25-20and21suctionisolation valves.OpenV-25-35hydrogenpurgedischarge toventstack.,4~5~Start2HVE7Aor7B.UnlockandopenV-25-25andV-25-26makeupairforpurge6.ModulateFCV-25-9openasneededtomaintaincharcoalabsorbertemperature belowalarmpoint.CAUTION:Ensurethateither2HVE10Aor2HVE10Bisrunning~7.Periodically checkthestackradiation monitoring systemforincreasing gaseousandparticulate levels."LASTPAGE"Emergency Procedure 2-0120042 Rev0