ML17216A324
| ML17216A324 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 10/22/1985 |
| From: | FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML17216A323 | List: |
| References | |
| NUDOCS 8510290314 | |
| Download: ML17216A324 (28) | |
Text
{{#Wiki_filter:~ProosedTechn5ca1Sec$ffcat)on~Chanes85i02903i4851022PDRADOCK05000335P' 01g'~k' TAIILE3.3-3+ContinuedENGINEEREOSAFETYFEATUREACTUATIONSYSTEtlIIISTRU%NTATIONCCFUNCTIONALUNITS.CONTAlINEIITSINPRECIR<ULATION(RAS)a.IL)nualRAS(TripGuttons)b.RefuelingMaterTank--LosTOTALNO.CHANNELSOFCIIANNCLSTOTRIPHllllllN-CIIANNELSOPERAGLEAPPLICASLENGES1,2,3,11,2,3ACllON86..LOSSOFPOMER~.i.l6kvEwergencybusUndervoltage(LossofVoltage)>>2/Gusb.1.16kvENergencybusUnder-voltage(DegradedVoltage)(1)UndervoltageDevice'll*2/Bus(2)UndervoltageDevicel2>>2/bus2/bus2/bus2/busI/busI/bus1/bus1,.2,31.2,31,2,3121212c.180VEjwergencybusUnder-voltage(DegradedVoltage)>>2/bus2/bus7.AUXILIARYFEENATE1AUTONTICSTARTSteaaGenerator(SG)Levellnstrments1/SG%4Jl2/SGforeitherstemgeneratorWillstartonetrainofAFM.TIIisspecification~illbeeffectiveprortoCycle7restart.2/SGV1/bus2/SG1,2,31,2,3
/DE'57MlL3,g-gANlLIARYFEENATER(AFAS)a.Hanual(TrfpButtons)b.AutomaticActuatfon*I.opfc4/SG4/SG2/SG2/SG4/SG3/SGSGLevel(fh/fb)-t.mt4/SG2/SG3/SG13,148.AUXILIARYFEEDMATERISOLATIONa.SGfA-SGfBOffferentfalPressure4/SG2/SG3/SGFeasterHeaderSGLA-SG18Dff-feren'al.Pressure4/SG2/SG3/SG eaCst,r. TABLE3.3-3ContinuedTABLENOTATIONACTION1O-ACTION11-ACTION12-NththenurrberofOPERABLEchannelsonelessthantheTotalNumberofChannels,operationmayproceedprovfdedtheinoperablechannelfsplacedfnthcbypassedcondition.-andtheMfnfmumChannelsOPERABLErequirementfsdemonstratedwfthfn1hour;oneadditionalchannelmaybebypassedforupto2hoursforsurveillancetestingperSepciffca-tfon4.3.2.1.1.InstrumentoperabilityrequirementsarecontainedfntheReactorProtectionSystemrequirementsforReactorTriponSteamGeneratorLevel.IfanAutomaticStartchannelfsfnoperablc.operationmaycontinueprovidedthattheaffectedpumpisverifiedtobeOPERABLEperSpecification4.7.1.2.awithin8hoursandatleastonceper7daysthereafter;andtheAutomaticStartchannelshallbercstorcdtoOPERABLEstatuswithin30daysorthereactorsallbefnatleastHOTSHUTDOWNwithinthcnext12hours.fifththenumberofOPERABLEChannelsonelessthantheTotalNumberofChannelsoperationmayproceeduntilperformanceofthenextrequiredCHANNELFUNCTIONALTESTprovidedthefnoperablechannelfsplacedfnthetHppedconditionwithin1hour.ACTION1i-ACTION13-WiththenumberofOPERABLEchannelsonelessthantheTotalNumberofChannels,restoretheinoperablechannelstoOPERABLEstatuswithin48hoursorbeinatleastHOTSTANDBYwithin6hoursandinHOTSHUTDOWNwithinthefollowing6hours.Withthenumberof'channelsOPERABLEonelessthantheTotalNumberofChannels,STARTUPand/orPOWEROPERATIONmaycontinueprovidedtheinoperablechannelfsplacedfnthebypassedortrippedconditionwithin1hour.Iftheinoperablechannelisbypassed,thedesirabilityofmaintainingthischannelinthebypassedconditionshallbereviewedinaccordancewithSpecification6.5.1.6m.ThechannelshallbereturnedtoOPERABLEstatusnolaterthanduringthenextCOLDSHUTDOWN.ACTION14-MiththenumberofchannelsOPERABLEonelessthantheMinimumChannelsOPERABLE,STARTUPand/orPOMEROPERATIONmaycontinueprovidedthatoneo'ftheinoperablechannelshasbeenbypassedandtheotherinoperablechannelhasbeenplacedinthetrippedconditionwithinIhour.ST.LUCIE-UNIT13/43-13AmendmentNo.A5,N1l.$g TABLE3.3-4~CnntlnunAEINEEDSAFETVFEATUREACTUATIONSTSTEIIIHSTRNIENTATIONTRIPVALUESIONALUNITTRIPVALUEALL%ABLEVALUES6.LOSSOFPOINa.(1)4.16kvbaergencyBusUndervoltage(LossofYo'Itage)>>b.i.l6kvEjsergeocytusUhdervoltage(OegradedVoltage)(1)Uodervolta5eDeviceil>>(2)UadervoltageDevicel2>>c.1NvoltsberitacySusUndervoltage(Degraded-Voltaie)>>3675i36voltswitha3615i36voltswitha7i1minutetiaedelay.7i1slatetiaedelay3592436volts.iithalbiXsec@adt$aedelay3592436volts~itha18~Xsecondtlaedelayi29i5-0voltsstthai2%~5-0voltswitha7+1secoadt$aedelay7+1secondtiaedelay2900i29voltseltha2900t29voltssritha1iSsecondtiaedelayl+.5secondtIaedelay7.NXILINVFEEQNTEIi%5leveli3l5leveldpawaarpaceThissyecificatioIsillbeeffectivepriortoCycle7restart. 7.AUNILIARZFEEDWLTER(AFAS)e..Hanua)(TripSuttons)b.AutoaoticActuationLogicc.SGlhtlSLevelLa>NotApplicableNot=Applicabl~.>2,8,0XNotApplicableNotApplicable~28$7r8.AUXILIARYFEEONTERISOLATIONSteawGeneratorhP-Highb.FeedraterHeaderHighAP<27$-':psid<150.0psid<gwgpsid<F7.5psid I TABLE3.3-5ENGINEEREDSAFETYFEATURESRESPONSETINESINITIATINGSIGNALANDFUNCTION1.Nanucla.SIAS,.SafetyIrgectfon(ECCS)Conta<eatntFanCoolersFeedwaterIsolationConta)naentIsolationb.CSASContafnnentSprayc.'ISContafeaentIsolationShieldSufldfngVent)latfonSys~d.RASContafrmentSumpReckrculatkone.NSISNafnSteamIsolat)on@gFeechatarIsoIatton2.PressurizerPressure-Losa.SafetyInfect)on(ECCS)b.Conta)nugentIsolationwee,c.ContainmentFanCoolersd.FiedwaterIsolat)onRESPONSETINEINSECONDSNotApplicableNotApplfcableNotApplicableNotApplkcableNotAppl)cableNotApplkcableNotApplicableNotApplicableNotApplfcableNotApplfcablec30./19.5~c30.5a/20~30.0~/17.~'60.0ST.UlCIE-lJNIT13/43-15PeendoentNo.Pl>g7,l9f.AFAS'ux)1faryFeedwaterActuat)ongotApplfcable ql'I ~TABLE3.3-5Cnntfnven'30.5~/20.5~~$0.0/14.0~30..0/17.0ENGINEEREDSAFETYFEATURESRESP~';=TIMESINITIATINGSIGNALANDFUNCTIONRESPONSETINEINSECONOSConta5nmentPressure-kfhSafetylrgect5on(ECCS)c30.gfl9.5~b."Conta5nmentIsolat5on~c.Sh5eldSu5ld5ngVent51at5onSystem4.Conta5mcntFanCoolerse.FeedwaterIsolat5onContainmentPressure--Hfh-Hfha.Conta5rmentSprayContainmentRad5at5on-Nha.'onta5nmentIsolat5on~'.'h5eldSu5ld5ngVent5lat5onSysten6.SteamGeneratorPressure-Lowa.Na5nSteamIsolat5onb.FeedwaterIsolat5onRefuel5nMaterStorageTank-Lmv460.0c30.0fle.sc30.5~f20.5~c30.0fl4.0c60.08.a.Conta5nmentSumpRec5rculat5on'teamGenerator'evelLo~c91.5a.Aux515aryFeedwatarrTABLESTATIOND5eselgeneratorstirt5ngandD5eselgeneratorstart5ngandDffs5tapowerava5lable.Notaool4cabletoconta5nment>ROSi+600"8/Av4Kd)sequenceload5n",delaysfncluded.sequenceloidfngdelaysnot5ncluded.5solat5onvalveI-Nf-18-1.n3/I3-17AnttnenBBBBo.ff:P.g jt 'ADLE~.3-2(Cn~nllnundFUNCTlONLTESTCIIAIIIIELCALIDDAllODCINIIIIELCIICCKFUIICTNNLUNlT6.LOSSOFPNEkENGIIIEEREOSAFETYFEhTUREACTUATlONSYSTE4IHSTRNENThTlONSURVElLLAIICEREIRENEIITSNOOKSlNNIICIISUAVElLLAIICEEIIIlbba.I;16kvGaergeacyBusUnder-voltage{LossoD.Voltage)>>h.1.1CRvEaergencyWsthder-voltagetOegradadVoltage)(1)UadervoltageOevice]1>>(2)UadervoltageOevice/2>>h.18OVEaargancyWsUnder-voltage(OegradedVoltage)~SNN1.2.31,2.31.2.31,2,37.AUXlLlNYFEENNKRa.AutoStartb.StoaaGenerator---------(SeeSurvei11aace1.7.1.2.h)------{SeeRESTablein31)~Aud~ex7~*ThisspecificationwillbeeffectivepriortqCycle7restart. 'lVH 7.AUXILIARYFEEDNTER(AFAS)a.Nanual(TripButtons)b.SGLevel(A/8)-Lowc.AutowmaticActuationLogic8.AUXILIARYFEEDNTERISOlATIONa.SGLevel(A/B)-LowandSGDifferentialPressure(BtoA/AtoB)-Highb.SGLevel(A/B)-LowandFeedwaterHeaderDifferentialPressure.(Btoh/AtoB)-HighN.A.N.A.N.A.N.A.N.A.N.A.1,2,31,2,31,2,31,2,31,2,3 (.0tih('i' ~~~~~I~I'~~~~~4~~~~~44~~4~~~I~~,~II4II~~~~~~~~~II~~~~~It~SS~~~~I~~~~~~~~44~I~~~~~~~~~~~SI~~~~'~~~~~~~~~~~~~~~~~~~~~~~4~~.~I~~~~.~~~~~~~~~~~4~~~ ST.LUCIEUNITNO.IAUTOMATICAUXILIARYFEEDWATERACTUATIONSYSTEMSAFETYEVALUATION/NOSIGNIFICANTHAZARDSCONSIDERATIONSDETERMINATIONThisisarequesttoreviseTechnicalSpecification3/4.3.2,EngineeredSafetyFeatureActuationSystem(ESFAS)Instrumentation,oftheTechnicalSpecificationsforSt.LucieUnit1.1.0DescritionofTechnicalSecificationChaneTheproposedchangecontainsthosetechnicalspecificationsneededtosupporttheinstallationofthesafetygradeautomaticauxiliaryfeedwateractuationsystem(AFAS),whichwillbeinstalledtosatisfyarequirementinNUREG-073V,ItemII.E.1.2.TheproposedchangerevisesTable3.3-3(ESFASInstrumentation),Table3.3-4(ESFASInstrumentationTripValues),Table3.3-5(EngineeredSafetyFeaturesResponseTimes),andTable4.3-2(ESFASInstrumentationSurveiQanceRequuements),andlistsanadditionalresponsibilityfortheFacilityReviewGroup(FRG)inTechnicalSpecification6.5.1.6.ThechangetoTable3.3-3revisesitemV,.AuxiliaryFeedwater,toincludemanualtripbuttons,automaticactuationlogic,andsteamgeneratorlevelasinputstotheAFAS.Item8,AuxiliaryFeedwaterIsolation,wasaddedtoaccountforthesystemsabilitytoisolateafaultedsteamgeneratorbasedonhighdifferentialpressurebetweenthesteamgeneratorsand/orthefeedwaterheaders.ACTIONSTATEMENTSwereaddedtodescriberequiredactionwhentheAFASdoesnotsatisfythechannelrequirementslistedinTable3.3-3.ThechangetoTable3.3-4revisesitem7andaddsItem8toincludealltheinputslistedabovewiththeirapplicabletripvaluesandallowablevalues.NotethatthechangetotheAFASsteamgeneratorlowlevelsetpointisbasedsolelyontheadditionofnewleveltransmitterswithlessinstrumentuncertaintythanthosepresentlyinstalled.Theinputtosafetyanalysesisunaffected.ThechangetoTable3.3-5addsitem1.ftoincludeamanualAFASinitiatingsignalandrevisesitem8,SteamGeneratorLevel,toreflectthenewAuxiliaryFeedwater(AFW)systemresponsetimebasedsolelyonnewequipmentinstrumentuncertaintyasstatedbythevendor(+25sec).ThechangetoTable4.3-2revisesitem7andaddsitem8toincludetheinputstotheAFAS,aslistedabove,andliststheassociatedsurveillancerequirementsforeachinput.ThechangetoTechnicalSpecification6.5.1.6addsparagraph6.5.1.6.mtothelistofresponsibilitiesoftheFacilityReviewGroup(FRG).ItrequirestheFRGtoreviewanddocumentthejudgementconcerningprolongedoperationinanabnormalconfigurationasallowedinACTIONSTATEMENT13ofTable3.3-3.DescritionofChanetotheAFWSstemThepresentAFWsystemincludesautomaticactuationofauxiliaryfeedwateronlowsteamgeneratorlevel,aftertheexpirationofapresettimedelay.ThissystemrepresentsFPL'sshort-termcommitmenttoNUREG-0737,ItemII.E.1.2ThenewAFASwhichistobeinstalledpriorto J start-upofCycle7,alsoincludesautomaticactuationoftheAFWsystemonlowsteamgeneratorlevelandanadjustabletimedelay.However,theAFASalsoincludeslogicthatwillautomaticallyisolateafaultedsteamgeneratoronlowSGlevelcoincidentwithhighsteamgeneratorand/orhighfeedwaterheaderdifferentialpressuresignals.ProvisionsareincorporatedintheAFASsothattheactuationsignalcanbemanuallyinitiated.ThenewAFASwillbeasdescribedandapprovedintheNRC'sSafetyEvaluationoftheAuxiliaryFeedwaterSystem,FloridaPower4LightCompany,St.LuciePlant,UnitNo.1,transmittedviaNRCletterdatedSeptember10>1982(R.A.ClarktoR.E.Uhrig),exceptthatatimedelayhasbeenaddedwhichwilldelaytheactuationoftheAuxiliaryFeedwater(AFW)Systemforsomepre-selectedperiodoftime(205to600seconds)afterreceivinganinitiationsignal(lowsteamgeneratorlevelsetpoint).If,however,the:.initiationsignalisremoved(duetoincreasingsteamgeneratorlevelabovethebistableresetpoint)beforetheexpirationofthetimedelay,thetimedelayisresettozero.ThisstopstheprocessandactuationoftheAFWsystemwillnotoccurunlesstheinitiationsignalisreceivedagainandthetimedelayexpiresbeforetheinitiationsignalisremoved.TheprimaryfunctionofthetimedelayistoreducechallengesontheAFWsystemundertheconditionofreactortripwithoffsitepowerandmainfeedwateravailable.Thetimedelayalsoprovidesmorefavorableresultsforthe'teamLineBreakanalysisbydelayingtheactuationoftheAFWsystem.Theinstallationofthesafetygradeautomaticauxiliaryfeedwateractuationsystem(AFAS)isbeingdone,inpart,tosatisfyarequirementinNUREG-0737,ItemILE.1.2.AnNRCsafetyevaluationoftheAFAS(NRClettertoFPL,R.A.ClarketoR.E.Uhrig,datedSeptember10,1982)statedthattheelectrical,instrumentation,andcontrolaspectsoftheAFASwerereviewedbytheNRCandthattheNRCconcludedthattheSt.Lucie,UnitNo.1auxiliaryfeedwaterautomaticinitiationsystemcomplieswiththestaff'slongtermsafetygraderequirements,andtherefore,isacceptable.ThesafetyevaluationrecommendedtheadditionoftechnicalspecificationsaddressingthesurveillancetestingoftheAFASautomaticactuationlogic.Thisproposedtechnicalspecificationchangepackagecomplieswiththoserecommendations.AutomaticcontroloftheAuxiliaryFeedwaterActuationSystemwillbemodifiedtoincorporateatimedelayasdescribedinSection1.1,DescriptionofChangetotheAFWSystem.Twoclassesofevents,increasedheatremovalanddecreasedheatremoval,werere-evaluatedto'determineiftheywereaffectedbythischange.ThespecificFSAReventsre-evaluated,becausetheadditionoftheAFAShas.themostimpactofthem,weretheLossofFeedwatereventandtheSteamLineBreakpost-tripReturn-to-Criticalityevent.TheexistinganalysesfortheLossofFeedwatereventandtheSteamLineBreakpost-tripReturn-to-Criticalityeventarestillvalid,asdescribedbelow.2.1SteamLineBreakPost-TriReturn-toCriticalitTheSteamLineBreakpost-tripReturn-to-CriticalityAnalysiscanbeaffectedbychangesintheassumptionsfortheauxiliaryfeedwaterflowrateandthetimeanddurationofdelivery.Moreflow,deliveredsooner,couldadverselyaffecttheresults.TheeffectsoftheAFASontheSteam
LineBreakpost-tripReturn-toCriticalityanalysiswasevaluatedbyCombustionEngineering,thedesigneroftheAFASbycomparingtheCycle5analysisresultswiththoseobtainedafterchangingonlythoseassumptionsimpactedby'AFAS.Theseassumptionsarelistedinthetablebelow.Acomparisonbetweenthenewvaluesandthereferencevaluesshowsthatthereferenceanalysisjsconservative,inthatitassumesthesameauxiliaryfeedwaterflow,thesameAFASactuationsetpoint,andthesameminimumdelaytime.TheonlydifferenceisthatthenewAFAShastheabilitytoautomaticallyisolatetherupturedsteamgeneratoronhighdifferentialpressureensuringthatnoadditionalwaterisadmittedtotherupturedsteamgenerator.ThisfeatureoftheAFASmakestheCycle5SteamLineBreakanalysisconservative.ParameterRef.AnalysisWithoutAFASNewAnalysisWithAFASCommentS/GWaterLevelAFWActuationSetpointMinimumAFASDelayTimeMaximumAFWFlowRate62.596(NormalWaterLeve9180seconds1280gpm180secondsNoDifference1280gpmNoDifference62.596(NormalNoDifferenceWaterLeve9MaximumHighSGN/APAFWIsolationSetpoint530psid+ForHZPcase-Noimpact.ForFullPowerCaseIsolatesAFWflowtorupturedS/GpriortoAFASactuation.U+Notethatthe'530psidisolationsetpointrepresentstheTechnicalSp~ificationvalueplusinstrumentuncertaintiesintheconservativedirection.ThehighSGPAFWisolationsetpointwasevaluatedtodetermineifahystereticvaluewasrequiredtomaketheeffectsofre-initiatingAFWflowtotherupturedsteamgeneratoracceptable.ForthisanalysistherupturedsteamgeneratorwillbeisolatedwhentheSGPreaches530psid,andremainsisolateduntilthefeedwaterheaderPfallsbelow200psid.SincethefeedwaterheaderPdoesnotfallbelow200psiduntilwellafterthetimeofpeakreactivity,re-initiationofAFWisnotofconcern;therefore,ahystereticvaluefortheSGPAFWisolationsetpointisnotrequired..ExxonNuclearCo.hasperformedtheirsafetyevaluationbasedonthecurrentAFASandhasfoundtheCycle7analysistobebounding.FeedwaterlinebreakswerenotanalyzedforexcessiveheatremovalbecausethesteamlinebreakisthelimitingcooldowneventasstatedintheFSAR.2.2LossofFeedwater/FeedwaterLineBreaksLossofFeedwaterevents,includingFeedwaterLineBreaks,werepreviouslyevaluatedasaresultofpostTMIrequirements(NUREG-0737, IClf' ItemII.E.1.1).ThisevaluationshowedthattheLossofFeedwatereventwaslimitingfortheAFWsystem.ThisevaluationwassubmittedtotheNRCandapp'rovedintheNRC'sSE,transmittedviaNRCletterdatedSeptember14,1982(R.A.ClarktoR.E.Uhrig).ThisevaluationispresentlyreflectedinSection10.5oftheFSAR.AreevaluationoftheseeventsconfirmedthatthelossofmainfeedwaterwithlossoffoffsitepowerplusanactivefailureoftheAorBbatteryandahighenergylinebreakintheAFWsystemwasthemostlimitingwithregardstotheAFWsystemrequirements.Anevaluationofthisevent,plustheLossofFeedwateranalysisshowninSection15.2.8intheFinalSafetyAnalysisReport(FSAR)demonstratesthat,afterthestartoftheevents,atleasttenminutesareavailabletoverifyauto-startor,ifnecessarytomanuallyinitiateauxiliaryfeedwaterflowbeforesteamgeneratordryoutoccurs.ThenewAFASwillactuatetheAFWsystemautomaticaQywellwithinthetimeframedemonstratedasacceptableintheFSAR.Basedontheabove,theexistingLossofFeedwaterAnalysisintheFSARremainsboundingandnoadditionalanalysisisrequired.3.0SiificantHazardsConsiderationOnSeptember14,1982,NRCapprovedthechangestotheAuxiliaryFeedwater(AFW)SystematSt.LucieUnit1,whichweretobemadetosatisfyNUREG-073V,SectionII.E.1.2.BecauseSt.LucieUnit2wasbeinglicensedatthattimewiththesameauxiliaryfeedwateractuationsystem(AFAS)aswhatwasapprovedforSt.LucieUnit1,NRCallowedpostponementoftheimplementationofAFASonSt.LucieUnit1untiltheFall1985refuelingoutage,inordertoobtainoperationalexperiencewiththesystemonUnit2.St.LucieUnit1willbeimplementingthenewAFASduringtheupcomingrefuelingoutage,scheduledtobeginonOctober20,1985.TheonlydifferencebetweenthesystemapprovedbyNRCandthesystembeinginstalledistheadditionofatimedelay.Theadditionofthetimedelayon.thenewsystemperformsthesamefunctionasthecurrentlyinstalledtimedelay,i.e.,itdelaysactuationof.thesystemforapre-selectedperiodoftimeafterreceivinganactuationsignal(lowsteamgeneratorlevelsetpoint).TheproposedchangestothetechnicalspecificationsarenecessarytomeetNUREG-0737technicalspecificationrecommendationsinthatadditionalsurveillancerequirementsarenowspecifiedfortheAFWsystem.ThisissimilartoExample(ii)oftheexamplesofamendmentsthatareconsiderednotlikelytoinvolvesignificanthazardsconsiderations,containedintheCommission'sguidancefordeterminationofsignificanthazardsconsiderations,inthatthenewsurveillancerequirementsarechangesthatconstituteadditionallimitations,restrictions,orcontrolsnotpresentlyincludedinthetechnicalspecifications:forexample,amorestringentsurveillancerequirement.TheproposedchangetothesteamgeneratorlowlevelsetpointforAFWsysteminitiation(Table3.3-4Item7)isbasedsolelyontheadditionofnewleveltransmitterswithlessinstrumentuncertaintythanthosepresentlyinstalled.Theinputtothesafetyanalysesisunaffected. ~~ TheproposedchangetotheSteamGeneratorLevel-LowresponsetimeforAFWSysteminitiation(Table3.3-5Item8)isalsobasedsolelyonthenewequipmentinstrumentuncertaintyasstatedbythevendor.TheproposedchangetoTechnicalSpecification6.5.1.6addsparagraph6.5.1.6.mundertheFacilityReviewGroupresponsibilitiestobeconsistentwiththeadditionofnewACTIONSTATEMENT13ofTable3.3-3.TheselastthreechangesaresimilartoExample(i)oftheexamplesofamendmentsthatareconsiderednotlikelytoinvolvesignificanthazardsconsiderations,inthattheyareadministrativeinnaturetoachieveconsistencythroughoutthetechnicalspecificationsandtochangethetechnicalspecificationstobeconsistentwiththeinstalledinstrumentation.Basedonthesafetyevaluationanddiscussionsabove,ithasbeendeterminedthattheproposedchangesdonotinvolvesignificanthazardsconsiderations.WP/DISCNB0000/RevTechSpec/0985/BL }}