ML17266A519

Loca.

ML17266A519
Person / Time
Site:	Saint Lucie
Issue date:	10/29/1981
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17212A963	List: ML17212A962 ML17266A519 ML17266A520
References
2-0120042, 2-120042, NUDOCS 8111050502
Download: ML17266A519 (29)

Text

EmergencyProcedure2-0120042Rev0LOCA(~)Page1of21FLORIDAPOWER&LIGHT'OMPANYST.LUCIEUNIT2EMERGENCYPROCEDURENUMBER2-0120042REVISION0October29,1981MSSOFCOOLANTACCIDENTQ.OCA)REVAPPROVALFRG.PLTMGRDATEDATETOTALNO.OFPAGES21 FLORIDAPOWER&LIGHTCOMPANYST.LUCIEPLANTUNIT2EMERGENCYPROCEDURENUMBER2-0120042(LOCA)REVISION0Page2of21LOCA1.0SCOPEThisprocedureprovidesinstructionstotheoperatorintheeventofasmallorlargebreaklossofcoolantcondition.20SYMPTOMS:2.1DecreasingprzrpressF1IndicationsPI-1102A,PI-1102B,PI-1102C,PI-1102DPR-1100OTE:2.1AlarmsH-9,H-10,H-l,H-2,H-3,H-14PressurizationlevelmaynotalwaysbeatrueindicationofRCSfluidinventory.Pressurizersteamspaceruptures,voidformationelsewhereintheRCS,referencelegflashingand/orfailuremaycauseindicationswhicharecontrarytothetrueRCSfluidinventorycondition.2~2Decreasingprzrlevel2'IndicationsLeakagegreaterthan'hargingpumpcapacity.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/TURBINETRIP2'IndicationsCEA'sinserted(ADS)CoreMimicRPS-Ch1,RPS-Ch.4,RPS-Ch.7,RPS-Ch~91RPS-ReactorTripBreakersOPEN23AlarmsL-3,L-9,,L-ll,L-17,L-36sL-44sL-5,L-13sD-8L>>1.0$L-18 0

Page3of21LOCAEMERGENCYPROCEDURENUMBER2-0120042'EVISION02.0SYMPTOMS:(Cont.)2.4SIAS/CISActuation2.4IndicationsPrzrpress<1600PSIAEquipmentstarts/isolatesperTables1and%&beII2~5CSASSignal2.42'AlarmsR-6,R-16,R-26,R-3,P-3,P-13,P-23'ndications(Later)2'IncreasingContainmentPressure,TemperatureandHumidity2'2.6Alarms(Later)IndicationsPIS-07-2A,PIS-07-2B,PIS-07-2C,PIS>>07-2DPR-07-4B,PR-07-5B,TR-07-3B,TR-07-5B,TI-07-3A,TI-07-5A,PI-07-4A,PI-07-5A2.7IncreasingReactorCavitySumpLevel2627M2~7AlarmsP-13,P-23IndicationsLIS-07-6,FR-07.-3AlarmsN-2I,H-292.8Hicontainmentradiation2.8IndicationsLaterr2'Quenchtankhighlevel,temperature,press2'2'AlarmsLaterIndicationsLIA-1116,TIA-1116,PIA-111629AlarmsH-16,H-24,H-32

Page4of21LOCAEMERGENCYPROCEDURENUMBER2>>0120042REVISION02'SYMPTOMS:(Cont.)2.10DecreasingVCTlevel2.11UnbalancedchargingandletdownflowF10IndicationsLIC-22262'0AlarmsM-3,M-112.11IndicationsFIA-2202,HIC-1110PIA-22122.12PressurizersafetyvalvesopenF11AlarmsM-5,M-13,M-152'2Indications(Later)2.13RCSsubcoolingmargindecrease2'.12Alarms(Later)2.13Indications(Later)2.14ReactorCoolantPumpsp.mpsmotorpurfledecreasingand/orerraticRCPpressuredifferential2.13Alarms(Later)2'4Indications(Later)2.14Alarms(Later)

Page5of21LOCAEMERGENCYPROCEDURENUMBER2>>0120042REVISION030AUTOMATICACTIONS:3.1ReactorTrip32TurbineTrip33CIAS34SIAS35CSAS3.6RAS3.1'IH/LPorLowPrzrPressure3.2Reactortripsturbine3.3SIASinitiates3'RCSpress<1600PSIA3i5Highcontainmentpressure3.6RWTlevel3feetmeasured Page6of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION04~0IMMEDIATEOPERATORACTION4.1EnsureImmediateOperatorActionsforareactortriphave4.1~1Anyautofunctionsrequiredhaveoperatedproperly42IfSIASwascausedbylowRCSpressure4.2a)VerifyCEA'sinserted>5sec.4.2b)StoptheoperatingRCPsIMPORTANT:AfterRCP'sarestopped,immediatelyrefertoEP2-0120043InadequateCoreCoolingOTEObserveallavaQ.ableindicationstodetermineconditionswithinRCS:SMMdisplay,RCS-T>,RCS-T,incorethermocouple,RCSpressDetermineifRCSissubcoolecforsaturated.Figure2willassistinthisdetermination.4.3ChecktheESFASBypassStatusboard4'Reason:Toensureavailabilityofequipmentforautofunctions.4.4EnsureSIAS,CISarefunctioningproperly4.4RefertoTableITableII~pccn~VOverfeedingtheS/GsmaycauseexcessivecooldownDonotexceed75/HRcooldownrate4'EstablishandmaintainS/Glevels865X4.5UsemainorAFW4.6Ifcontainmentpressureapproaches10PSIG,initiateCSAS.4.6EnsureCSAScomponentsfunction.-RefertoTableIII4.7Classifytheeventasconditionsdictate,'ccordingtotheemergencyplan4.7Implementtheemergencyplanasnecessary

~1r!r,,Figure2."'SATURATIOH/SUBCQQLB'(G@lid~.gcg2g'dPg'~'aoo28QO~;.':-=.,"..2600.',::,':.'".':':.24002200'.'--'""-.-"'-"="'-'-"'2QQO180016001400,~':*'.".'..::-'."::-'"P1200-.1QQQr400'UBCOOLEOREGION't5QrSUBCCOL1NG20F"SUBCOOLEttGAfLlE.SURATi0SUPERHEATREGEOi'l~:2nO'0300350,40045050055Q600"650700RCSTEt'~PERATURETHF Page8of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0TABLEI'AFETY.".INJECTIONACTUATIONSIGNALSIASRTGB206LefttoRihtTwo(2)CCWPPS2A,2B,or2C.ConditionONCheckTwo(2)CCWtoFuelPoolHXIsolationValvesMV-14-17,MV-14-18ClosedFour(4)CCWHDRNon-essentialIsolationValvesHCV-14-8A,HCV-14-8B,HCV-14-9,HVC-14-10ClosedTwo(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)SITankIsolationValvesV3614,V3624,V3634,V3644Four(4)SITankFill/DrainValvesI-SE-03-1A,I-SE-03-1B,I-SE<<03-1C,'-SE-03-1DFour(4)SICheckLeakageTestHCV<<3618,HCV-3628,HCV-3638,HCV-3648~enClosedClosed~enClosedClosedFour(4)FWPDischargeIsolationValvesHCV<<09-1A,HCV-09-2A,HCV-09-1B,HCV-09-2BClosedFour(4)CCWTo/FromRCP'sHCV-14-1,HCV-14-2,HCV-14-7,HCV-14-6Closed Page9of21LOCAEMERGENCYPROCEDURENUMBER2>>0120042REVISION0TABLEI(Cont.)SAFETYINJECTIONACTUATIONSIGNALTWO(2)ContainmentSumpIsolationLCV<<07-11A,LCV-07-11BRTGB205LefttoRihtOne(1)BAMakeupValveV2512Two(2)BAGravityFeedV2509,V2508One(1)VCTDischargeV2501Two(2)LetdownIsolationV2516,V2515T&i~>0>Two(2IntakeCoolWtrPP's2A,2BThree(3)IntakeCoolWtrIsolationValvesMV-21-3,MV-21-4,MV-21-2RTGB201Two(2)DieselGen2A,2BHVAVPanelLefttoRihtFour(4)RABMainSupplyandECCSExhaustFans2-HVS-4A,2-HVE-9A,2-HVS-4B,2-HVE-9BCONDITIONCHECKClosedClosed~OeeClosedClosedClosedFour(4)ContainmentFanCooler2-HVS-lA,2-HVS-lB,2-HVS-1C,2-HVS-1DEight(8)ECCSIsolationDampersDSA,D6A,D9A,D12A,D5B,D6B,D9B,D12BClosedTwo(2)RxSupport&Cavity-Cool.Fans2-HVS-2A,2-HVS-2B,2-HVE-3A,2-HVE-3BOffNOTE:Anyspareequipmentthatisrunning,andnotneededforcontrollingthisincidentshouldbeSTOPPED.

Page10of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0TABLEIICONTAINMENTISOLATIONACTUATIONSIGNALCIAS)RTGB206LefttoRihtTWO(2)SITank,toRWTI-SE-03-2A,I-SE-03-2BCONDITIONCHECKClosedPive(5)SITankSampleIsolationValvesPCV-03-1A,FCV-03-1B,FCV-03-1C,FCV>>03-1D&FCV-03-1EClosedFour(4)S/GBlowdownIsolationValvesFCV-23-3,FCV-23-5,FCV-23-4,&PCV-23-6SampleFCV-23-7,FCV-23-9Two(2)ContainSumpIsolationValvesLCV>>07-11A,LCV-07-11BSix(6)RCS&PRZRSampleIsolationValvesV5200,V5201,=V5202,V5203,V5204,V5205One(1)PrimaryWaterIsolationHCV-15-1One(1)InstrumentAirIsolationHCV-18-1One(1)NSupplyIsolationV6741Two(2)WasteGasIsolationV6750,V6718Two(2)RCPBleed-offIsolationV2505,'2524ClosedClosedClosedClosedClosedClosedClosedClosedTwo(2)RDTIsolationV6341,V6342RTGB205Three(3)LetdownIsolationValvesV2516,V2522,V2515RTGB201Two(2)DieselGen.2A,2BHVACPanelLefttoRihtTwo(2)ShieldBldg.Vent.&ControlRoomPilterFans2-HVS-13A,2-HVE-6APour(4)ControlRoom.IsolationValvesPCV-25-24,FCV-25-17,FCV-25-18,FCV-25-16Two(2)ShieldBldg.Vent&ControlRoomPilterFans2-HVS-13B,2HVE6BPour(4)ControlRoom.IsolationValvesFCV<<25-25,FCV-25-14,PCV-25-15,PCV-25-19ClosedClosedClosedClosed

.Page11of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0TABLEII(CONT.)CONTAINMENTISOLATION'ACTUATIONSIGNALCIAS)CONDITIONCHECKTwo(2)ContainmentPurgeExhaustFan2-HVE-SA,2-HVE-SBSix(6)ContainmentPurgeIsolationValvesFCV-25-1,FCV-25-3,FCV-25-5,FCV>>25-6,FCV-25%,FCV-25-2OffClosedThree(3)ContinuousContainmentH2PurgeIsolatdonFCV-25-20,VCV-25-26,VCV-25-21ClosedTwo(2)ShieldBldg.Vent.IsolationValvesFCV-25-32,FCV-25-330enTwo(2)FuelBldg.Emerg.Vent.IsolationValvesFCV-25-30,FCV-25-31Six(6)ContainmentSampleIsolationValvesFCV-26-2,FCV-26%,FCV-26-6,FCV-26-1,FCV-26-3$FCV-26-5(RTGB206)'ClosedClosed Page12of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0TABLEIIICONTAINMENTSPRAYACTUATIONSIGNAL'ONDITIONCHECKTvo(2)ContainmentSprayPumps2A,2BOnTwo(2)ContainmentSprayHDRIsolationValvesFCV-07-1A,FCV-07-1B~OenTwo(2)IodineRemovalSystemPumps2A,2BOnTwo(2)IodineRemovalSystemIsolationValvesI-SE-07-3A,I-SE>>07-3BOEenNOTE:VerifFlavonFI-07-1A,andFI-07-1B Page13of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION050SUBSEUENTACTIONSCHECK5.1RefertoReactorTrip/TurbineTrip,2-0030130andensurethatallsubsequentactions(section5)havebeenorarebeingperformed,5.2Whencontainmentpressuredecreasesto<10psig,StoplAand1BCS.pps.CloseFCV-07-1A,FCV-07-1BStopIodineRemovalPPs2A,2BCloseIodineRemovalSystemIsolation.valvesI-SE-07-3A,3B5.3Withinone(1)hour,butwithoutexceptionnolaterthanone(1)hour,~stoRCS/BAMTborationviathechargingpumps.5.4Conductarearadiationsurveysassoonaspossibletodetermineextentofdamage.5'ImplementtheEmergencyPlanasnecessaryinaccordancewithEP3100021E.5.6CommenceRCScooldownassoonaspossibleandinanycasewithinone(1)hour.CAUTION:EnsureRCSismaintainedinasubcooledcondition.AfteranySIAS,operatetheSISuntilRCShotandcoldlegtemperaturesareatleast50FbelowsaturationtemperaturefortheRCSpressure.5.7EnsureproperoperationofthesafetyinfectionsystembycheckingflowratesandSITlevels.5~8.Ifsteamdumptocondenserisavailableclosetheatmosphericsteamdumpandbegindumpingsteamtothecondenser.5.9Ifoffsitepowerislost,steamdumptotheatmospheremustbeusedforcooldown.CAUTION:Donotexceed75F/Hourcooldownrate.5'0Continueauxiliaryfeedwaterflowtothesteamgeneratorsduringcooldown.5.11Reducesteamgeneratorpressuretolessthan985psig.(Safetysetting)RefertoOP2-0030127,ReactorPlantCooldown..

Page14of21LOCAEMERGENCYPROCEDURENUMBER2<<0120042REVISION05.0SUBSEUENTACTIONS:(Cont.)CHECK5~12ImmediatelypriortoRASensurepowerisavailabletoV3659,V3660,V3495,V3496.5+13EnsureRASoccurswhentheRWTleveldecreasesto3ftindicated-(4ft.frombottomofthetank).TableIVpage16maybe-usedasacheck1<st.5.14IfallHPSIpumpsandchargingpumpsareoperatingandtheHPSIpumpsaredeliveringlessthan75GPMperpump,stopthechargingpumpsoneatatime,thenHPSIpumpsoneatatimeuntilonlyoneHPSIpumpremainsoperating.5.15CheckRABradiationlevelsandsumplevelsafterRAStodetectSISleakage.Evenifleaksaredetected,atleastoneHPSIpumpmustremaininoperationtoprovideflowtothecore.5'6Establishradiationareasandwarningswherenecessary5.17Withoutexceptionandwithinten(10)hoursofthe'incidentoccurance,initiatehotleginfection.Thiswillbeincon)unctionwiththeexistingcoldleginfection.5~18IfthepressureandinventorycontrolwiththeSIScannotbeestablishedaftereighthoursandRCSpressislessthan300PSIG,continuehotandcoldleginjection.

Page15of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0TABLEIVRECIRCULATIONACTUATIONSIGNALCONDITIONCHECKTwo(2),LPSIPPS2A,2BOffTwo(2)SIPPRecirc.toRVZIsolationValvesV3659,V3660ClosedTwo(2)MinimumFlowIsolationValvesV-,3495,V3496ClosedTwo(2)ContainmentSumpOutletValvesMV-07-2A,MV-07-2B~en.Two(2)RMTOutletValvesMV-07-1'A,MV-07-1BClosed EHERGENCYPROCEDURENUHBER2-0120042REVISION0Page16of21LOCAI15'SUBSEVENTACTIONS:(Cont.)1)Verifysubcoolingbycheckingthesaturationpressurefortheexistingtemperature.2'RealigntheSISforcoldleginfection.3.)ContinuetomaintainsubcoolingandreduceRCSpressureto<268PSIAforshutdowncoolingbyreducingtheflowdeliveredbythehighpressureinjectionandchargingpumps.4'Whilereducingpressureandaftershutdowncoolingisinitiated,maintainRCSpressurewiththechargingpumpsandf}-O/ortheHPSIpumpstomaintainatleast50subcooling~5.19IfpressureandinventorycontrolwiththeSISareestablishedaftereight(8)hoursandRCSpressureisgreaterthan300PSIG,conductoneofthefollowingactivities,(inorderofdecreasingpreference.)Thisconditionindicatesthesystemisrefilledandsubcoolinghasoccurred.519.1OR5.19.2Continuetoremovedecayheatusingauxiliaryfeedwaterandsteamdumpsifadequatecondensateisavailableand,(5.19.1)cannotbeimplemented.OR5~19.3If5.19.1or5.19~2above,cannotbeimplemented,Openprzrpoweroperatedreliefvalvesandalignthesafetyinfectionsystemforcoldleginfection.ToopenthePORVs,pulltwoRPSprzrhighpressuretripunitbistables.520Placebothhydrogenrecombinersinservice.(SeeAppendix"A")5'1Ifcontainmenthydrogenconcentrationcannotbemaintainedbelow3.5Xasindicatedonthecontainmenthydrogensamplesystem,thenplacethecontainmenthydrogenpurgesysteminoperation.(SeeAppendix"B")

Page17of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION06+0PURPOSEANDDISCUSSION:ThisprocedureprovidesinstructionstobefollowedintheeventthatleakagefromtheReactorCoolantSystemexceedsthecapacityoftheoperablechargingpumps.MhenconditionsintheReactorCoolantSystemdegrade'tothepointthataLimitingSafetySystemSettingisapproachedtheReactorProtectiveSystem.willinitiateareactortrip,makingthereactorsubcritical.Thisvillstoptheproductionofpowerinthecore.Coolingofthecore,however,mustcontinuetoremovetheconsiderabledecayheatthatremains.TheSafetyInfectionSystemautomaticallyprovidesaflowofsubcooledwatertothecorefordecayheatremoval.Failuretokeepthecorecoveredwillresultinoverheatingofthefuel,failureofthecladding,andareleaseofgrossamountsoffissionproductstothecontainmentatmosphere.ThespectrumofbreakswhichwouldcauseaLOCAisfromapproximatelyat.2inchdiameterbreakuptoadouble-endedhotlegrupture.Foranexample:Analysisshowthattheflowfromanunrestricted.3inchdiameterbreakisapproximately180GPMat2250PSIA.Ama)orconcernforthesesmallbreaksisthattheflowthroughthebreakmaynotbesufficientfordecayheatremoval.Inthosecircumstancesitisimperativethatasecondaryheatsinkbeavailable.ThisinturndictatestheuseoftheAuxiliary'FeedwaterSystemasthemainfeed-watersystemisdisabledduetoanSIAS.OperatoractionsshouldbedirectedtowardensuringproperoperationoftheSafetyInfectionandContainmentIsolationSystems,ensuringallautomaticfunctionshaveinitiatedproperly,andtakingactiontoprotectplantpersonnel.Longtermactionisdirectedtowardplacingtheplantinacoldshutdowncondition.ForsmallbreakswheretheECCSwillmaintainRCSvolumeandpressure,operatoractionmustbedirectedtowardestablishingandmaintainingsubcooledc'onditionsintheRCSduringthecooldowntopreventvoidformationFig.4.4isaquickreferenceforoperatorsactions.

Page18of21LOCAEMERGENCYPROCEDURENUMBER2>>0120042REVISION06~0PURPOSEANDDISCUSSION:(Cont.)Someinstruments(valveposition,temperature,pressure,levelindications,etc.)specifiedforuseinthisprocedurehavenotbeendesignedforlongtermpostLOCAconditionsinsidecontainment.Therefore,theoperatorshouldbeespeciallyalertthatthepotentialexistsforerroneousindicationafter>15minuteshaveelapsedfollowingaLOCAevent.Ifthere'sahighradioactivitylevelinthereactorcoolantsystem,circulationofthisfluidinSDCmayresultinhighareareaioactivityreadingsintheRAB.TheactivityleveloftheRCSshouldbedeterminedpriortoinitiatingSDCflow.Itmaybenecessarytofilltheprzrsolidtoregainpressurecontrolandtoachieve50Fsubcooling.Ifthisisthecase,HPSIdischargevalveswillhave.tobecarefullythrottledduringthecooldowntoreducesystempressure.EnsureHPSIflowtothecorecontinuesafterRAS.DonotallowtheHPSIpumpstooperate"dead-headed".HPSIshutoffhead(noflow)1250PSIG.Donotexceed75F/hourcooldownrate.Ifconditionspermit,attempttolocateandisolatethesourceoftheleak.PossibleleaklocationsincludebutarenotlimitedtothePORVs,theletdownlineandthesamplelines.PrzrlevelmaynotalwaysbeatrueindicatorofRCSfluidinventory.Przr.steamspaceruptures,referencelegfailures,andreferencelegflashingmaycauseindicationswhicharecontrarytotrueconditions.Allavailableindicationsshouldbeusedtoaidindiagnosingtheeve'ntsincetheaccidentmaycauseirregularitiesinaparticularinstrumentreadingsCriticalp'arametersmustbeverifiedwhenoneormoreconfirmatoryindicationsareavailable.WiththeSubcoolingMarginMonitor(SMM)operatingnormally,usethenomographonRTGB104inconjunctionwiththeSMMtoeliminatedependenceonzsingleinstrument.WiththeSMMinoperable,refertothenomographutilizingcontrolroomindicatorssuchasTHOT,przrpressure,andincorethermocouplestodeterminetheThmargintosaturationSubcoolingmargincanalsobedeterminedbysubtractinghotlegtemperaturefromprzrtemperature(TE-1101)~Takeappropriateactiontokeepcorecoveredorrefloodifitbecomespartiallyuncovered.Maintainorre-establishaheatremovalpath.RegainRCSpressureandlevelcontrol.Followlongtermshutdownproceduresinordertoassurethatboronprecip'itationdoesnotoccur.I e

Page19of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION07'

REFERENCES:

C'),lSt.LucieUnitPlEmergencyProceduresUnit/f2FSARSECT.1.0,6.0,9.0~7>C~E.genericLOCAguidelines<5SongsOIS023-3-.5-..68.9LundConsultingreporttoC~E.(Feb.6,1981)g,qDraftofNUREG-.0799~lNormalLogEntries't~WERg.Nransientindicatorsandrecordercharts.9e0APPROVAL:ReviewedbyPlantNuclearSafetyCommitteeApprovedby/PlantManagerRevisionReviewedbyFacilityReviewGroupApprovedby/PlantManager191919 7

Page20of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0APPENDIX"A"PLACINGH2RECOMBINERSINSERVICEI.Placerecombinersinserviceasfollows:1A1B1.Ensurebreakers841262in480VMCC2A5(2A)and8'42103andin480VMCC2B6(2B)areclosed.2~Setthepoweradjustpotentiometeratzero(ooo)~3.Checkthatpowerisavailabletothepowersupplypanelbyobservingthe"poweravailable"whitelightonthecontrolpanelisilluminated.4.SetthePowerOutSwitchonthecontrolpaneltothe"ON"position.Theredlightontheswitchwillilluminate.5~GraduallyturnthePowerAdjustpotentiometerto70KWasindicatedonthePowerOutWattmeter.CAUTION:Thereisalaginthemeterreading,soturnthepotentiometerknobslowly.Donotexceed75KW.6.Periodicallycheckthetemperatureofthethreethermocouplesusingthetemperaturechannelselectorswitch.And,whenthetemperaturereaches1250F,adjustthepoweradjustpotentiometertomaintaintemperaturebetween1250Fand1400F.CAUTION:Donotletthetemperatureexceed1400Fasindicatedbythethermocouplereadout.

Page21of21LOCAEMERGENCYPROCEDURENUMBER2-0120042REVISION0APPENDIX"B"PLACINGCONTAINMENTH2PURGEINSERVICE2.3.II.PlacecontainmentH2purgeinserviceasfollcws:VerifyclosedV>>2538filterbypassvalves.UnlockandopenV-25-20and21suctionisolationvalves.OpenV-25-35hydrogenpurgedischargetoventstack.,4~5~Start2HVE7Aor7B.UnlockandopenV-25-25andV-25-26makeupairforpurge6.ModulateFCV-25-9openasneededtomaintaincharcoalabsorbertemperaturebelowalarmpoint.CAUTION:Ensurethateither2HVE10Aor2HVE10Bisrunning~7.Periodicallycheckthestackradiationmonitoringsystemforincreasinggaseousandparticulatelevels."LASTPAGE"EmergencyProcedure2-0120042Rev0