ML17223B389

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Proposed Tech Specs,Deleting Table 4.4-5, Reactor Vessel Matl Irradiation Surveillance Schedule.
ML17223B389
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 12/17/1991
From:
FLORIDA POWER & LIGHT CO.
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ML17223B388 List:
References
NUDOCS 9112270257
Download: ML17223B389 (20)


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Attachment1St.Lucz.eUnits1Marked-UpTechnicalSpecificationPagesPages3/4-223/4-24B3/44-129'1122702579112i7PDRADOCK05000335PD1%

REACTORCOOLANTSYSTEMSURVEILLANCEREUIREMENTS4.4.9.1a.TheReactorCoolantSystemtemperatureandpressureshallbedeterminedtobewithinthelimitsatleastonceper30minutesduringsystemheatup,cooldown,andinserviceleakandhydrostatictestingoperations.b.TheReactorCoolantSystemtemperatureandpressureconditionsshallbedeterminedtobetotherightofthecriticalitylimitlinewithin15minutespriortoachievingreactorcriticality.c.Thereactorvesselmaterialirradiationsurveillancespecimensshallberemovedandexamined,todeterminechansinmaterialIIII'resultsoftheseexaminationsshallbeuseoupateres3.4-a,3.4-2band3.4-3.DEL~~a~aa.~P~~V3AQ95PE.Qu>mOSY)CCFa.5u~APP~~Gi~H.ST.LUCIE-UNIT13/44-22AmendmentNo.81 OTABLE4.4-5Specimencation~oVeseVESSELHATERIALIRRADIATIONSURVEILLANCESCHEDULEApproximateRemoval>>PredictedFluenceScheduleEFPY~ncm'7~(1)104284'63'77'31.5421.021.541.54.6710182132Standb~5.5x10'.78x101.58x10"'"2.78x10"4.24x101)Infoationforthiscapsuleisactual2)Rloofcapsulefluencedividedbythefluenceatthecontrollingveld3pproxiaateendoflife1/4Tfluence

'I~~~~~4 REACTORCOOLANTSYSTEMBASESforpiping,pumpsandvalves.Belowthistemperature,thesystempressuremustbelimitedtoamaximumof20%ofthesystem'shydrostatictestDELVEpressureof3125psia.Thelimfationsimposedonthepressurizerheatupandcooldownratesandspraywatertemperaturedifferentialareprovidedtoassurethatthepressurizerisoperatedwithinthedesigncriteriaassumedforthefati-gueanalysisperformedinaccordancewiththeASMECoderequirements.3/4.4.10STRUCTURALINTEGRITYTheinserviceinspectionprogramforASMECodeClass1,2and3componentsensurethatthestructuralfntegrftyofthesecomponents'illbemaintainedatanacceptablelevelthroughoutthelifeoftheplant.ThisprogramfsfnaccordancewithSectionXIoi'heASMEBoilerandPressureVesselCodeandapplicableAddendaasrequiredby10CFRPart50.55a(g)exceptwherespecificwrittenreliefhasbeengrantedbytheCommissionpursuantto10CFRPart50.55a(g)(6)(f).ComponentsofthereactorcoolantsystemweredesignedtoprovideaccesstopermftinservfceinspectionsinaccordancewithSectionXIoftheASMEBoilerandPressureVesselCode1971EditionandAddendathroughWfnter1972.ST.LUGIE-UNIT1B3(44~12AmendmentNo.90 Attachment2St.LucieUnit2Marked-UpTechnical8pecificationPagesPagesXXIV3/44-303/44-33B3/44-11

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~~L:STOFTAcL=(Con-.inued))NOEÃi'8L.3.3-94.3>>63.3-10REMOTESHUTDOWNSYSTEMiNSTRUMEHTATION..REMOTESHUTDOWNSYSTEMIt(STRUMEtlTATiOHSURVEILLANCEREqUIREMEilTS.........,.............ACCvDE)'lTMONITORINGINSTRUMENTATIONPAGc,3/43-393/43-403/<3-424.3-i3.3-113.3-124.3-83.3-134,3-9ACCIDENTMONITORIHGINSTRUMEHTATIOt<SURVEiL)LANCEREQUIREMENTS....,.....................3/<3-43/FIREDET)EC>IONINSTRUMENTS......................3/43-45RAOIOAC;IVELigLIDEFFLUENTMONITORINGitlST)?UMENTATIOH....3/<3-49RADI'OACTIVELIQUIDEFFLUEHTMONITORINGINSTRUMENTATIONSURVEIL&tlCEREQUIREMENTS.~,...................~3/<3>>51RADIOACTIVEGASEOUSEFFLUEHTMONITORINGItlSTRUMENTATION...3/43-54RAD.IOACTIVEGAScOUSEFFLUEHTMONITORINGii'lSTRUMEHTATIOHSURVEILLANCEREqUIREMEHTS........3/43-Si4.4-14.4-23.4-134,13MINiMUMtlUMBEROFSTEAMGEHERA70RS70BEINSPEC"DDURINGIHSERVICEIi'lSP~CTION.STc.4'E)'l~RATORTUBEIHSPECTiON....,...................REACTOP,COOLANTSYSTEMPRESSUREISOLATiONVALVESRD~CTORCOOLANTSYSTEMCHEMISTRY.RACTORCOOLANTSYS)cMCHEMISTRYLMITSSURVEILLnllCREQUIRE)MENTS~~3/<"-163/<4-173/d.4-21)3/-'-43PRIMARYCOOLANTPROGRAM...SPCIFiCAC:IVITYSAMPANOnslAL.iS>>p~>></3.5-1COHTAIHMEHTL="4K"GE.PATHS.CON)'IHMEHT!SOL.'7'.CllVALV-"/1'I>>~~~~~~~~~~~~~vlvv\\vSI~LUCI>>UNI>2-'.-endmen".No.B' REACTORCOOLANTSYSTEMSURVEILLANCEREUIREMENTS(Continued)4.4.9.l.2Thereactorvesselmaterialirradiationsurveillancespecimensshallberemovedandexaminedtodeterminechanesinmaterialroertieseresultsoftheseexaminationssaeuefigures3.4-2,3.4-3and3.4-4.M~E.n~oamp'.4Q~TpEgu<~~~~i~OCHER,5oAPPED@))~H.ST.LUCIE-UNIT23/44-30AmendmentNo.f8,3l

~~C~C:mTABLE4.4-5REACTORVESSELHATERIALSURVEILLANCEPROGRAH-WITHDRAWALSCHEDULEC:CAPSULERNFR12356VESSELLOCATION83971043cR2770284LEADFACTOR(1<<1.5(1.5<I.5<1~5<1.5WITHDRAWALTINEEFPY1.024~0STANDBY12.0STANDBYANDBYDI

~~~~~~REACTORCOOLANTSYSTEMBASESTheactualshiftinRTTofthevesselmaterialwillbeestablishedperiodicalduringopeatiIbyremovingandevaluating,inaccordancewithASTME185and10CFppendixH,reactorvesselmaterialitradiationsurveil-ancespecimensinstalledneartheinsidewallofthereactorvesselinthe~fcorecree.~~veSincethenleuronspectraaerraaonsampesanvessenseraiusaeessentiallyidentical,themeasuredtransitionshiftforasamplecanbeappliedwithconfidencetotheadjacentsectionofthereactorvessel.TheheatupandcooldowncurvesmustberecalculatedwhenthedeltaRTdeterminedfromthesurveillancecapsuleisdifferentfromthecalculatedIINtaRTforeuivalentcasuleradiationexosure.Thepressure-temperaturelimitlinesshownonFigures3.4-2,3.4-3and3.4-4forreactorcriticalityandforinserviceleakandhydrostatictestinghavebeenprovidedtoassurecompliancewiththeminimumtemperaturerequirementsofAppendixGto10CFR50.ThemaximumRT>>forallReactorCoolantSystempressure-retainingmaterials,withthe5xceptionofthereactorpressurevessel,hasbeendeterminedtobe60'F.TheLowestServiceTemperaturelimitlineshownonFigures3.4-2,3.4-3and3.4-4isbaseduponthisRTsinceArticleNB-2332(SumserAddendaof1972)ofSectionIIIoftheASIDEIlierandPressureVesselCoderequirestheLowestServiceTemperaturetobeRTD+100'Fforpiping,pumps,andvalves.Belowthistemperature,thesysteNjfressuremustbelimitedtoamaximumof20%ofthesystem'shydrostatictestpressureof3125psfa.ThelimitationsimposedonthepressurizerheatupandcooldownratesandspraywatertemperaturedifferentialareprovidedtoassurethatthepressurizerisoperatedwithinthedesigncriteriaassumedforthefatigueanalysisperformedinaccordancewiththeASMECoderequirements.TheOPERABILITYoftwoPORVs,twoSDCRVsoranRCSventopeningofgreaterthan3.58squareinchesensuresthattheRCSwillbeprotectedfrompressuretransientswhichcouldexceedthelimitsofAppendix0to10CFRPart50whenoneormoreoftheRCScoldlegtemperaturesarolessthanorequaltotheLTOPtemperatures'.TheLowTemperatureOverpressureProtectionSystemhasadequaterelievingcapability.toprotecttheRCSfromoverpressurizhtionwhenthetransient$slimitedtoeither(1)asafetyin)ectionactuationinawater-solidRCSwith'thepressurizerheatersenergizedor(2)thestartofanidleRCPwtth'hesecondarywater.temperatureofthe.steamgeneratorlessthanorequalto40'FabovetheRCScoldlegtemperatureswiththepressurtzerwater-solid.ST.LUCIE-UNIT2B3/44-11AmendmentNo.Jl,3V.46, J~~~~~

Attachment3SafetAnalsisIntroductionThischangeisproposedtorevisetheSt.LucieUnits1and2TechnicalSpecificationstoremoveTable4.4-5,ReactorVesselMaterialSurveillanceProgramWithdrawalSchedule,andanyreferencestothetablefromtheTechnicalSpecifications.TheappropriatereactorvesselmaterialwithdrawalscheduleshavealreadybeenincorporatedinTable5.4-3oftheUnit1FUSARandTable5.3-9oftheUnit2FUSAR.DiscussionInaccordancewithGenericLetter91-01,theproposedchangetotheSt.LucieUnits1and2TechnicalSpecificationsrevisestheReactorCoolantSystemSection3/4.4.9,Pressure/TemperatureLimits,byremovingTable4.4-5andanyreferencestothetablefromtheTechnicalSpecifications.AppendixHSectionII.B.'3of10CFRPart50,states,that:."Aproposedwithdrawalschedulemustbesubmittedwithatechnicaljustificationasspecifiedin10CFR50.4.Theproposedschedulemustbeapprovedpriortoimplementation."HavingthisscheduleintheTechnicalSpecificationsduplicatesthecontrolonchangestothisschedulethathasbeenpreviouslyestablishedin10CFR50AppendixH.Thelimitingconditionsforoperation(LCO)fortheReactorCoolantSystemincludeoperatinglimitsonpressureandtemperaturethataredefinedinFigures3.4-2a,3.4-2band3.4-3oftheSt.LucieUnit1TechnicalSpecificationsandFigures3.4-2,3.4-3,3.4-4oftheSt.LucieUnit2TechnicalSpecifications.Theyprovideanacceptableregionforoperationduringheatup,cooldown,criticality,andinserviceleakandhydrostatictesting.ThesurveillancerequirementassociatedwiththisLCOaddressesthefrequencyofverifyingthat,operationiswithinthespecifiedlimitsduringtheseoperatingconditions.Alsoincludedisanadditionalsurveillancerequirementthatstates(Thereactorvesselmaterialirradiationsurveillancespecimensshallberemovedandexamined,todeterminechangesinmaterialproperties,attheintervalsrequiredby10CFR50AppendixHinaccordancewiththescheduleinTable4.4-5.TheresultsoftheseexaminationsshallbeusedtoupdateFigures3.4-2a,3.4-2band3.4 fortheSt.LucieUnit1TechnicalSpecificationsandFigures3.4-2,3.4-3,and3.4-4fortheSt.LucieUnit2TechnicalSpecifications."TheproposedchangewouldremoveTable4.4-5,andanyreferencestothetablefromtheTechnicalSpecifications.Becausethesurveillance

'l' requirementspecifiesthattheresultsoftheseexaminationsshallbeusedtoupdateFigures3.4-2a,3.4-2band3.4-3forSt.LucieUnit1and3.4-2,3.4-3and3.4-4forSt.LucieUnit2forthepressureandtemperaturelimitsthisrequirementwillberetained.St.LucieUnits1and2TechnicalSpecificationBasesSection3/4.4.9,Pressure/TemperatureLimits,givesadetaileddescriptionofthebasesforthisLCOandtherelatedsurveillancerequirements.TheStandardTechnicalSpecification(STS)basesreferencesTable4.4-5whichprovidesthescheduleforsurveillancespecimenwithdrawal.ThisBasesSectionprovidesconsiderablebackgroundinformationontheuseof.thedatagatheredfrommaterialspecimens.Thisbackgroundinformationclearlydefinestheobjectiveofthisdataasitrelatesto10CFR50AppendixHandtheAmericanSocietyofMechanicalEngineers(ASME)Code.DeletionofthereferencetoTable4.4-5doesnotaffectthecontentofthissection.ConclusionThereactorvesselmaterialwithdrawalscheduleshavealreadybeenincorporatedintotheUnit1and2FUSAR.RemovingthemfromtheUnit1and2TechnicalSpecificationswillnotresultinanylossofclarityorcontrolovertheregulatoryrequirementsof10CFR50AppendixH.

J Attachment4DeterminationofNoSinificantHazardsConsiderationThestandardsusedtoarriveatadeterminationthatarequestforamendmentinvolvesnosignificanthazardsconsiderationareincludedintheCommissionsregulation,10CFR50.92,whichstatethatnosignificanthazardsconsiderationsareinvolvediftheoperationofthefacilityinaccordancewiththeproposedamendmentwouldnot(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated;or(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or(3)involveasignificantreductioninamarginofsafety.Eachstandardisdiscussedasfollows:(1)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.Theproposedamendmentchangedoesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluatedbecausetheregulatoryrequirementof10CFR50AppendixHwillremainineffectintheTechnicalSpecifications.RemovingTable4.4-5,andanyreferencestoit,willnotresultinanylossofregulatorycontrolbecausechangestothisschedulearecontrolledbytherequirementsof10CFR50AppendixH.(2)Useofthemodifiedspecificationwouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated.TheuseofthismodifiedspecificationcannotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluatedbecauseaspreviouslystatedinAppendixHSectionII.B.3of10CFR50,thelicenseemusthaveawithdrawalscheduleapprovedbytheNRCpriortoimplementation.ByremovingTable4.4-5,andanyreferencestothattable,FPLwillonlyeliminateduplicationofarequirementthatitalreadyadherestoin10CFR50AppendixH.(3)Useofthemodifiedspecificationwouldnotinvolvesignificantreductioninamarginofsafety.ByremovingTable4.4-5themarginofsafetywouldnotbecompromisedbecausethesurveillancerequirementstillrequiressurveillancespecimenstoberemovedandexamined,todeterminechangesinmaterialproperties,atintervalsrequiredby10CFR50AppendixH.Inadditiontheresultsof

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theseexaminationsshallbeusedtoupdatethefiguresforthepressureandtemperatureoperatinglimitsrequiredbytheTechnicalSpecifications.Basedontheabove,wehavedeterminedthattheproposedamendmentdoesnot(1)involveasignificantincrease,intheprobabilityorconsequencesofanaccidentpreviouslyevaluated,(2)createtheprobabilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated,or(3)involveasignificantreductioninamarginofsafety;andthereforedoesnotinvolveasignificanthazardsconsideration.

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