ML17332A766

Application for Amends to Licenses DPR-58 & DPR-74.Amends Would Incorporate Cycle & Burnup Dependent Peaking Factor Penalty

ML17332A766
Person / Time
Site:	Cook
Issue date:	05/25/1995
From:	FITZPATRICK E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17332A767	List: ML17332A766 ML17332A768
References
AEP:NRC:1071T, NUDOCS 9505310313
Download: ML17332A766 (11)

Text

~PRIGRITYl~CCELERATEDRIDSPl<OCI'.SSIiG)REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)SACCESSIONNBR:9505310313DOC.DATE:95/05/25NOTARIZED:YESDOCKETFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,IndianaM0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaM05000316AUTH.NAME~AUTHORAFFILIATXONFITZPATRICK,E.XndianaMichiganPowerCo.(formerlyIndiana&MichiganElepRECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

ApplicationforamendstolicensesDPR-58&DPR-74.Amendswouldincorporatecycle&burnupdependentpeakingfactorpenalty.DISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTRjENCL2SIZE:&+/TITLE:ORSubmittal:GeneralDistributionNOTES:0RECIPIENTXDCODE/NAMEPD3-1LA7HICKMAN,JXNTE'ENTE01*NRR/DSSA/SRXBOGC/HDS2EXTERNAL:NOACCOPIESLTTRENCL111111111110RECIPIENTIDCODE/NAMEPD3-1PDNRR/DE/EMCBNRR/DSSA/SPLBNUDOCS-ABSTRACTNRCPDRCOPIESLTTRENCL1111111111D0UNNOTETOALL"RIDS"RECIPIENTS:PLEASEIHELPUSTOREDUCEiVKSTE!CONTACTTIIEDOCL'ifEY'I'CONTROLDESK,ROOMPI.37(EXT.564.0083)TOELIXIRl.PATEYOURNAifLITROifDIS'I'RIBU'I'IONLIS'I'SI'ORDOCI.'%lEN'I'SYOI'ON"I'ITl'.D!TOTALNUMBEROFCOPIESREQUIRED:LTTR12ENCL11 0

IndianaMichiganPowerCompanyP.O.Box16631Columbus,OH43216May25,1995AEP;NRC:1071TDocketNos.:50-31550-316U.S.NuclearRegulatoryCommissionATTN:DocumentControlDeskWashington,D.C,20555Gentlemen:DonaldC.CookNuclearPlantUnits1and2TECHNICALSPECIFICATION3.2.6CHANGEFqPENALTY,FpsONALLOWABLEPOWERLEVELTOBEBURNUPDEPENDENTANDSPECIFYTHEVALUEINTHECOREOPERATIONLIMITREPORTThisletteranditsattachmentsconstituteanapplicationforamendmentofthetechnicalspecifications(T/Ss)forDonaldC.CookNuclearPlantUnits1and2.Specifically,weproposetomodifytheT/Sstoincorporateacycleandburnupdependentpeakingfactorpenalty(Fp).SincethevalueofFpwilltypicallychangeeachfuelcycle,weproposetospecifythevalueofFpintheCoreOperatingLimitsReport(COLR).Yourstaff'ssafetyevaluationinNovember1993ofWCAP-10216-P,Rev.1,"RelaxationofConstantAxialOffsetControl-F<SurveillanceTechnicalSpecification,"foundtheproposedrevisiontotheFosurveillanceacceptable.OurproposedchangessatisfytherequirementsstatedinthesafetyevaluationbypenalizingFointheallowablepowerlevelT/S(3.2.6).Attachment1providesadetaileddescriptionoftheproposedchanges,justificationforthechanges,andourdeterminationofnosignificanthazardsconsiderationperformedpursuantto10CFR50,92.Attachment2containstheexistingT/Spagesmarkedtoreflecttheproposedchanges.Attachment3containstheproposedrevisedT/Spages.Attachment4containsanexampleofhowtheproposedchangewouldberepresentedintheCOLR.

fI U.S.NuclearRegulatoryCommissionPage2AEP:NRC:1071TWebelievethattheproposedchangeswillnotresultin(1)asignificantchangeinthetypesofanyeffluentthatmaybereleasedoffsite,or(2)asignificantincreaseinindividualorcumulativeoccupationalradiationexposure.TheproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommitteeandtheNuclearSafetyandDesignReviewCommittee.Incompliancewiththerequirementsof10CFR50.91(b)(l),copiesofthisletteranditsattachmentshavebeentransmittedtotheMichiganPublicServiceCommissionandtotheMichiganDepartmentofPublicHealth.Sincerely,p~'.E.Fitzpatrick~VicePresidentSWORNTOANDSUBSCRIBEDBEFOREMETHIS~~4DAYOF1995NotaryPublicehAttachmentsCC:A.A.BlindG.CharnoffJ.B.MartinNFEMSectionChiefNRCResidentInspector-BridgmanJ.R.Padgett

'lI'Isaystry~~rlJ~1 ATTACHMENT1TOAEP:NRC:1071TJUSTIFICATIONAND10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITS1AND2TECHNICALSPECIFICATIONS Attachment1toAEP:NRC:1071TPage1DESCIPTIONOFCHANGESJ1.Units1and2,technicalspecification(T/S)3.2.6:WhereFzissetequalto1.02,modifytostatethatFpisaburnupdependentpenaltyspecifiedintheCoreOperatingLimitsReport(COLR).2.Units1and2,T/S6.9.1.9.2.c:UpdatereferencetoWCAP-10216-P,June1983,toWCAP-10216-P-A,Revision1A,February1994.3.Units1and2,COLR,Section2.8.3:SpecifytheburnupdependentvaluesofF>insteadofreferringtothevalueinT/S3.2.6(seeAttachment4).REASONANDJUSTIFICATIONFORCHANGESTheF<andallowablepowerlevel(APL)T/Ssurveillancesarerequiredevery31effectivefullpowerdays(EFPDs).TotakeintoaccountthepossibilitythatF<mayincreasebetweenfluxmaps,provisionsareprovidedintheT/Sstoaccommodatesuchoccurrences.TheT/SsrequirethatF<(Z)/K(Z)becomparedtothepreviousfluxmap,andifitisfoundtoincrease,thenadditionalactionmustbetaken.Eithera2percentpenaltyisappliedtoF~,ornopenaltyisapplied,butFomeasurementsmustbetakenevery7EFPDsuntiltwosuccessivefluxmapsindicatethatF<(Z)/K(Z)isnotincreasing.WestinghouseElectricCorporation(Westinghouse)hasdiscoveredcaseswherepredictedF<increasesmorethan2percent,causingthe2percentpenaltytobenon-conservative.Thesecasesaregenerallyatbeginningofcycle(BOC)burnupsandtheeffectstaperoffbeforereachingthepointofleastamountofF<margin.SincetheT/Ssonlyallowfora2percentpenaltytobeapplied,weeklyF<measurementshavetobetakenduringtheBOCtoensurethatT/Ssurveillancesaresatisfied.WestinghouserevisedWCAP-10216-P-A,toaddresspredictedF<increasesofmorethan2percent,whichwasacceptedintheNRCsafetyevaluationdatedNovember26,1993.TherevisiontotheWCAPspecifiestwooptionsforincorporatingchangesintheT/SstoaccommodateFzofgreaterthan2percent.TheoptionsaretomakeFzburnupdependentandmoveitinCOLR,ortoaddapenaltytotheV(Z)function.Wehavechosentoincorporatetheoptionwhichspeci.fiesuseofaburnupdependentFpthatwillbespecifiedintheCOLR.TheburnupdependentFpT/SchangespresentedinWCAP-10216-P-A,Rev.1A,addressapplicationofthepenaltyintheFoT/S.CookNuclearPlantT/SsutilizeFpasitisappliedtoF<intheallowablepowerlevel(APL)T/Ss.SincetheAPLcalculationisdependentonthevalueofF>,theprotectionagainstanincreasingF<isidenticaltothatintherecommendedT/SchangesspecifiedinWCAP-10216-P-A,Rev.1A.

~~a Page2IncorporatingaburnupdependentF<penaltyintheCOLRwouldallowapplicationofthelargerpenalty,whennecessary,tomaintaina31EFPDsurveillanceschedule.Therefore,theweeklyF<measurementswouldnotberequiredtosatisfytheT/Ssurveillancerequirements.10CFR50.92EVALUATIONPer10CFR50.92,aproposedamendment.willnotinvolveasignificanthazardsconsiderationiftheproposedamendmentdoesnot:(1)involveasignificantincreaseintheprobabilityorconsequencesof'"anaccidentpreviouslyevaluated,(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated,or(3)involveasignificantreductioninamarginofsafety.Criterion1Theproposedchangeswillnotinvolveasignificantincreaseintheprobabilityofanaccidentpreviouslyevaluatedbecausethechangeswillnotresultinachangetoanyoftheprocessvariablesthatmightinitiateanaccident.TherearenophysicalchangestotheplantassociatedwiththisT/Schange.TheconsequencesofanaccidentpreviouslyevaluatedwillnotbeincreasedbecausethechangesincreasethepenaltyappliedtoF<whenitismeasuredtobeincreasing.F<andallowablepowerlevel(APL)T/Ssurveillancerequirementsarenotbeingchanged.Furthermore,allowingacycleandburnupdependentF<penaltytobelocatedintheCOLRwasacceptedbytheNRCin,asafetyevaluationonWCAP-10216-P,Rev.1.CRITERION2Theproposedchangeswillnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluatedbecausethechangeswillinvolvenophysicalchangestotheplantnoranychangesinplantoperations.Furthermore,theF<andAPLT/Ssurveillancerequirementsarenotbeingchanged,andthechangetotheF<penaltyisconservative.CRITERION3Theproposedamendmentwillnotinvolveasignificantreductioninamarginofsafety.WhentheincreasedF<penaltyisapplied,itreducestheallowablepowerlevel,thusincreasingthemarginofsafety.

ATTACHMENT2TOAEP:NRC:1071TEXISTINGTECHNICALSPECIFICATIONPAGESMARKEDTOREFLECTPROPOSEDCHANGES