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{{#Wiki_filter:ACCELERATED7S'BUBUTIONDEMONMWTIONSYSTEM4REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DOCKET0500031505000316
{{#Wiki_filter:ACCELERATED 7S'BUBUTION DEMONMWTIONSYSTEM4REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316


==SUBJECT:==
==SUBJECT:==
ApplicationforamendstolicensesDPR-586DPR-74,revisingTSTable4.8-2fromeighthtocompositefourhbatteryemergencyloadsforAB(Train-B)6CD(Train-A)batteries6deletingloadonlTrainBbatteriesloadlist.DISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTR!ENCLISIZE:TITLE:ORSubmittal:GeneralDistributionNOTESACCESSIONNBR:9312290102DOC.DATE:93/12/20NOTARIZED:YESFACIL:50-315DonaldC.CookNuclearPowerPlant,,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATIONFITZPATRICK,E.IndianaMichiganPowerCo.(formerlyIndiana6MichiganEle'ECIP.NAMERECIPIENTAFFILIATIONMURLEY,T.E.DocumentControlBranch(DocumentControlDesk)RRECIPIENTIDCODE/NAMEPD3-1LAHICKMAN,JINTERNAL:NRR/DE/EELBNRR/DRCH/HICBNRR/DSSA/SPLBNUDOCS-ABSTRACTOGC/HDS2EXTERNAL:NRCPDRCOPIESLTTRENCL1122111111111011RECIPIENTIDCODE/NAMEPD3-1PDNRR/DORS/OTSBNRR/DRPNNRR/DSSA/SRXBO~CBCREGF01NSICCOPIESLTTRENCL111,1111110111.1DDDNOTETOALL"RIDS"RECIPIENTS:DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR16ENCL14 IndianaMichiga~~PowerCompan~P.O.Box16631Columbus,OH432165AEP:NRC:0896RDonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICALSPECIFICATIONCHANGEREQUEST:REVISETHETRAINA/BBATTERIES'ROFILESANDMODIFYTRAINNBATTERIES'ROFILESU.S.NuclearRegulatoryCommissionDocumentControlDeskWashington,D.C.20555Attn:T.E.MurleyDecember20,1993
Application foramendstolicensesDPR-586DPR-74,revising TSTable4.8-2fromeighthtocomposite fourhbatteryemergency loadsforAB(Train-B) 6CD(Train-A) batteries 6deletingloadonlTrainBbatteries loadlist.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR
!ENCLISIZE:TITLE:ORSubmittal:
GeneralDistribution NOTESACCESSION NBR:9312290102 DOC.DATE:
93/12/20NOTARIZED:
YESFACIL:50-315 DonaldC.CookNuclearPowerPlant,,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E.
IndianaMichiganPowerCo.(formerly Indiana6MichiganEle'ECIP.NAME RECIPIENT AFFILIATION MURLEY,T.E.
DocumentControlBranch(Document ControlDesk)RRECIPIENT IDCODE/NAME PD3-1LAHICKMAN,J INTERNAL:
NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS2EXTERNAL:
NRCPDRCOPIESLTTRENCL1122111111111011RECIPIENT IDCODE/NAME PD3-1PDNRR/DORS/OTS BNRR/DRPNNRR/DSSA/SRXB O~CBCREGF01NSICCOPIESLTTRENCL111,1111110111.1DDDNOTETOALL"RIDS"RECIPIENTS:
DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:
LTTR16ENCL14 IndianaMichiga~~
PowerCompan~P.O.Box16631Columbus, OH432165AEP:NRC:0896R DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATION CHANGEREQUEST:REVISETHETRAINA/BBATTERIES'ROFILES ANDMODIFYTRAINNBATTERIES'ROFILES U.S.NuclearRegulatory Commission DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyDecember20,1993


==DearDr.Murley:==
==DearDr.Murley:==
Thisletteranditsattachmentsconstituteanapplicationforamendment.totheTechnicalSpecifications(T/S)fortheDonaldC.CookNuclearPlantUnits1and2inaccordancewith10CFR50.90.TheproposedchangerevisesT/STable4.8-2fromeighthourtocompositefourhourBatteryEmergencyLoadsforAB(TRAIN-B)andCD(TRAIN-A)batteries.Inaddition,weareproposingtodeletealoadontheTrainBbatteriesloadlist.Also,thisproposedchangemodifiesT/STable4.8-3fortheNTrainbatteriestoaccuratelyreflecttheoperationloadsofthesebatteriesasrecordedintheircompositeprofiles.ThischangeisconsistentwithLOCA/LOOPandStationBlackoutforDonaldC.CookNuclearPlantandthenewStandardTechnicalSpecificationsforWestinghouseplants,publishedbytheNRCasNUREG1431,datedSeptember28,1992.Attachment1providesadetaileddescriptionoftheproposedchange,thejustificationforthechange,andourproposeddeterminationofnosignificanthazardsconsiderationperformedpursuantto10CFR50.92.Attachment2containstheexistingT/Spagesmarkedtoreflecttheproposedchange.Attachment3containstheproposed,revisedT/Spages."700>39312290102931220'DRADOCK05000315''PDR  
Thisletteranditsattachments constitute anapplication foramendment.
totheTechnical Specifications (T/S)fortheDonaldC.CookNuclearPlantUnits1and2inaccordance with10CFR50.90.TheproposedchangerevisesT/STable4.8-2fromeighthourtocomposite fourhourBatteryEmergency LoadsforAB(TRAIN-B) andCD(TRAIN-A) batteries.
Inaddition, weareproposing todeletealoadontheTrainBbatteries loadlist.Also,thisproposedchangemodifiesT/STable4.8-3fortheNTrainbatteries toaccurately reflecttheoperation loadsofthesebatteries asrecordedintheircomposite profiles.
Thischangeisconsistent withLOCA/LOOP andStationBlackoutforDonaldC.CookNuclearPlantandthenewStandardTechnical Specifications forWestinghouse plants,published bytheNRCasNUREG1431,datedSeptember 28,1992.Attachment 1providesadetaileddescription oftheproposedchange,thejustification forthechange,andourproposeddetermination ofnosignificant hazardsconsideration performed pursuantto10CFR50.92.Attachment 2containstheexistingT/Spagesmarkedtoreflecttheproposedchange.Attachment 3containstheproposed, revisedT/Spages."700>39312290102 931220'DR ADOCK05000315'
'PDR  
'
'
aDr.T.E.Murley-2-AEP:NRC:0896RWebelievethattheproposedchangewillnotresultin(1)asignificantchangeinthetypesofeffluentsorasignificantincreaseintheamountofanyeffluentsthatmaybereleasedoffsite,and(2)asignificantincreaseinindividualorcumulativeoccupationalradiationexposure.TheproposedchangehasbeenreviewedbythePlantNuclearSafetyReviewCommitteeandbytheNuclearSafetyandDesignReviewCommittee.Incompliancewiththerequirementsof10CFR50.91(b)(1),copiesofthisletteranditsattachmentshavebeentransmittedtoMr.J.R.PadgettoftheMichiganPublicServiceCommissionandtotheMichiganDepartmentofPublicHealth.Thisletterissubmittedpursuantto10CFR50.30(b)and,assuch,anoathstatementisattached.Sincerely,VicePresidentehAttachmentscc:A.A.Blind-BridgmanG.CharnoffJ.B.Martin-RegionIIINFEMSectionChiefNRCResidentInspector-BridgmanJ.R.Padgett COUNTYOFFRANKLINE.E.Fitzpatrick,beingdulysworn,deposesandsaysthatheistheVicePresidentoflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTechnicalSpecificationChangeRequest:RevisetheTrainA/BBatteries'rofilesandModifyTrainNBatteries'rofilesandknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledgeandbelief.Subscribedandsworntobeforemethis~yAdayof19~>NTARYPUICRITA0.HILLNOTARYPOBI.IC,STATEOFOHIO Attachment1toAEP:NRC:0896R10CFR50.92DeterminationforProposedChangestotheDonaldC.CookNuclearPlantUnits1and2TechnicalSpecifications Attachment1toAEP:NRC:0896RPage11.0SECTIONSTOBECHANGEDUnit1:Table4.8-2Table4.8-3Unit2:Table4.8-2Table4.8-32.0EXTENTOFCHANGES.WeareproposingtorevisetheCDbatteries'TrainA)andtheABbatteries'TrainB)eighthourprofilestofourhourprofilesandweareproposingtomodifytheTrainNbatteries'xistingfourhourprofiles.Additionally,weareproposingtodeletealoadontheTrainBbatteries'oadlist.3.0CHANGESREUESTEDIdenticalchangesarebeingsoughtforboththeUnit1andUnit2TechnicalSpecifications.RevisetheBatterEmerencLoadstablesTable4.8-2onpage3/48-15liststheeighthourBatteryEmergencyLoadsfortheABandCDbatteriesandTable4.8-3onpage3/48-19liststhefourhourBatteryEmergencyLoadsfortheNbattery.Weareproposingtorevisethesetables(asillustratedinAttachments2and3)since,asaddressedinParagraph2.0,wehaveproposedrevisionoftheTrainA/Bbatteries'ighthourprofilesandmodificationoftheTrainNbattery'sfourhourprofile.Additionally,weareproposingtodeletetheFMOandTDTVvalve"OperatingSequence"listfromTable4.8-3sinceitisnolongerusedtoplaceactualloadsontheTrainNbatteryduringsurveillancetesting.Instead,simulatedloadsareplacedonthebatteryasallowedbyapreviousT/Schange(AEP:NRC:0896J).DeletealoadfromtheABBatterLoadslistTable4.8-2onpage3/48-15listsasaloadthe"ComputerStaticInverter".WeareproposingtodeletethisloadfromthetablesincethisloadwasphysicallyremovedfromtheTrainBbatteryasafunctionofadesignchange.4.0DISCUSSIONThe250VDCSystemprovidesareliablesourceofcontinuouspowerforsupplyandcontrolofplantsafetysystems.Includedinthe Attachment1toAEP:NRC:0896RPage2safetysystemsarethereactortripsyst:em,engineeredsafetyfeatures,andauxiliarysupportfeatures.AnumberofdifferentDCplantloadsareservedfromeachofthemainandtransferdistributioncabinets.Theplantloadsincludecontrolcircuits(switchgear6annunciators),staticinverters,valvecontrolcenters,emergencylighting,andmotorcontrolcenters,ingeneral,plusvitalbusinverters,fireprotectioncontrol,andmainturbinelubeoilpumps,inparticular.TheNTrainloadsincludetheturbinedrivenauxfeedwater(TDAFW)controlbus,theAMSACinverter,andavalvecontrolcenter.ThissubmittaladdressesthetestdurationsfortheemergencyloadsontheClass1EbatteriesandthedeletionofaloadontheTrainBbatteries.ReasonforProosedTechnicalSecificationChaneReuestTherearetworeasonsweareproposingachangetotheTechnicalSpecifications.Thefirstdealswithchangingthedesigndutycyclesof'theTrainA/BbatteriesfromeighthourprofilestofourhourprofilesandmodifingtheexistingfourhourprofilesoftheNTrainbatteries.Theseconddealswithremovingthe"ComputerStaticInverter"loadfromtheABBatteryLoadsportionofTable4.8-2.Thefollowingdiscussionprovidesmoredetailsregardingtheproposedchanges.TheexistingBatteryEmergencyLoadstablesintheTechnicalSpecificationsrepresenteighthourdutycyclesfortheA/BTrainbatteriesandfourhourdutycyclesfortheNTrainbatteries.Asdiscussedbelow,however,thenuclearrelatedDCloadsareonlytestedtothreehourseventhoughtheoverallprofileiseighthours.VhereasthisproposalintendsonlytomodifythefourhourdutycyclefortheNTrainbatteries,itintendstochangethedutycyclesfortheA/BTrainbatteriesfromtheircurrenteighthourdutycyclesto"composite"fourhourdutycycles.Thedetailsofthischangefollow.A."TheexistingTrainA/Beighthourdutycyclescontaintwodistinctrequirements:1)ThenuclearrelatedDCloadsarerequiredtobesuppliedbythebatteriesforthreehours.ThisisbasedonaLOCA/LOOPevent,afailureoftheassociatedbatterychargerandareasonabletimetorestorethebatterychargerorsparechargertoservice.This.threehourrequirementisincludedinChapter8oftheUFSAR.
aDr.T.E.Murley-2-AEP:NRC:0896R Webelievethattheproposedchangewillnotresultin(1)asignificant changeinthetypesofeffluents orasignificant increaseintheamountofanyeffluents thatmaybereleasedoffsite,and(2)asignificant increaseinindividual orcumulative occupational radiation exposure.
Attachment1toAEP:NRC:0896RPage32)Theturbineshutdownloadsarerequiredforeighthourstoproperlycooldownthemainandfeedpumpturbines'illubricatedcomponents.ThisisbasedonoperationalexperienceandisnotdiscussedintheUFSAR.B.SincethethreehourdutycycleshavetheirbasisintheUFSARandDonaldC.CookNuclearPlanthascommittedtofourhourstationblackout(SBO)dutycycles,thesetwodutycyclesformthebasisfortheproposedfourhourcompositeloadprofiles.TheeighthourloadslistedintheexistingT/SBatteryEmergencyLoadstablesarenolongervalidsinceafourhourcopingdurationhasbeenestablishedforCookNuclearPlantuponaLossofAllAC(SBO)event.Thismeans,atworst,thatDC.loadsarerequiredonlytocopeforfourhoursonthebatterieswithnoACpoweredbatterycharger.AsafunctionoftheStationBlackoutRule,fourhourloadprofilesweredevelopedfortheA/BTrainbatteries.TheseprofilesincludeloadsheddingofcertainloadsonehourintotheeventasallowedbyNUMARC87-00andtheNRC.SinceSBOhasbecomeaconditionforoperatingtheCookNuclearPlantandsincetheUFSARcontinuestobeaconditionforoperatingtheplant,theproposedprofilesofrecordfortheClass1EbatteriesarecompositesofboththethreehourUFSARloadprofilesandthefourhourSBOprofiles.Thecompositeprofilesenvelopebothoftheirconstituentprofilesandassuchrepresentconservativesizing/applicationoftheClasslEbatteries.FortheA/BTrainbatteries,itisdesiredtorevisethe"MinimumTime"columnoftheBatteryEmergencyLoadstables(asillustratedinAttachments2and3)toreflectthetimedurationsincludedinthecompositeprofiles.Thecompositeprofilesofthebatteries(asdiscussedpreviously)envelopetheworstcaseconditionsforthestationbatteriesandaremaintainedasformalcalculationsinthePowerSystemsandHumanFactors(NEEP)sectionoftheNuclearEngineeringDepartment(NE).FortheNTrainbatteries,itisdesiredtorevisethe"MinimumTime"columnandtoremovethevalveoperatingsequencelistofTable4..8-3asshowninAttachments2and3.ItshouldbenotedthatthesemodificationsdonotchangetheT/SfourhourdutycycleoftheNTrainbatteries.Rather,themodificationsareintendedtomoreaccuratelyreflecttheoperationoftheNTrainbatteryloads.asrecordedinthecompositeprofilesforthesebatteries.Removalofthevalveoperatingsequenceportionof Attachment1toAEP:NRC:0896RPage4thetablewillhavenoimpactonthetestingofthevalvestothecompositeprofiles..Thislistisbeingremovedbecauseitisnolongerused.IthadbeenusedtoplaceactualloadsontheNTrainbatteriesbutsincetheapprovalofT/SchangeAEP:NRC;0896J,onlysimulatedloadshavebeenplacedonthebatteriesduringsurveillancetesting.Thesebatterieswillcontinuetobetestedtotheirdesignbasisdutycycles(compositeprofiles)usingsimulatedloading.LiketheTrainA/Bcompositeprofiles,theTrainNcompositeprofilesenvelopetheworstcaseconditionsforthesebatteriesandaremaintainedasformalcalculationsintheNEEPsectionofNE.Itisdesiredtoremovethe"ComputerStaticInverter"loadfromTable4.8-2(asshowninAttachments2and3)sincethisloadwasphysicallyremovedfromtheABBatteriesasafunctionofdesignchangeRFC-12-2996,"UpgradePlantProcessComputerSystem".ThepowersupplyforthissystemisnowtheTechnicalSupportCenterUninterruptiblePowerSupplysystem.JustificationforProosedTechnicalSecificationChanesThecompositeloadprofilesfortheTrainA/BbatteriesarearesultofthecombinationofthethreehourLOCA/LOOPandfourhourSBObatteryloadprofiles.ThethreehourLOCA/LOOPloadprofilesareafunctionoftheUFSARfortheCookNuclearPlantwhereasthefourhourSBOloadprofileswereperformedfortheNUMARC87-00StationBlackoutRule.Theseloadprofileswerecomparedtodeterminethemostdemandingloadingofthestationbatteries.SincetheLOCA/LOOPsetofloadprofilesgenerallydetailedahigherfirst-minuteloadandtheSBOsetyieldedalongerloadingperiod,thecompositeloadprofilesweredevelopedtoenvelopetheworstcaseprofilesforeachbattery.Thesecompositeloadprofilesareintendedforuseasthemodelsforperformanceofthe18-monthsurveillancetestingofthebatteries.Additionally,sinceCookNuclearPlanthasbeendesignatedasafourhourplaneforanSBOevent,retainingtheeighthourbatterydutycyclesisnolongerjustifiable.ThecompositeloadprofilesfortheNTrainbatteries,whichremainunchangedatfourhoursinduration,aremoreconservativeandmoreaccuratelyreflectthepostulatedloadsonthesebatteriesthanwhatislistedintheTechnicalSpecifications.Thecompositeloadprofilesareintendedforuseasthemodelsforperformanceofthe18-monthsurveillancetestingofthebatteries.ThevalveoperatingsequencelistofTable4.8-3isbeingremovedbecauseitisnolongerusedtoplaceactualloadson.theNTrainbatteriesduringsurveillancetesting.Instead, Attachment1toAEP:NRC:0896RPage5theNTrainbatterieswillcontinuetobetested(usingthecompositesprofilesasthebasis)usingsimulatedloads.ThejustificationforremovingtheComputerStaticInverterLoadfromtheABBatteryLoadslistisself-explanatory.5.010CFR50.92CRITERIAPer10CFR50.92,aproposedamendmentdoesnotinvolveas'ignificanthazardsconsiderationifthechangedoesnot:(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.(2)createthepossibilityofanewordifferentkindofaccidentfromanypreviouslyanalyzed.(3)involveasignificantreductioninamarginofsafety.Criterion1ThechangeisproposedtocomplywiththeLOCA/LOOPandSBOrequirementforCookNuclearPlantforbatterytesting.Thecompositetestasaddressedabovemeetstheserequirementsforfourhourtestprofiles.ThischangeisconsistentwiththeUFSARthreehourLOCA/LOOPandNUMARC87-00StationBlackoutRulefourhour.Basedontheseconsiderations,theproposedchangedoesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.Criterion2ThechangeonlyaddressesthebatteryprofiletestwhichmeetsbothLOCA/LOOPandSBOforCookNuclearPlant.Nospecificphysicaloroperationalchangestotheplantwilloccurduetothischange.Thus,thechangewillnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated.Criterion3TheproposedchangerevisesthebatteryprofiletesttablefromaneighthourtoafourhourcompositetestwhichcomplieswithbothLOCA/LOOPandSBOasdefinedforCookNuclearPlant.Therefore,theproposedchangedoesnotinvolveasignificantreductioninamarginofsafety.}}
TheproposedchangehasbeenreviewedbythePlantNuclearSafetyReviewCommittee andbytheNuclearSafetyandDesignReviewCommittee.
Incompliance withtherequirements of10CFR50.91(b)(1),
copiesofthisletteranditsattachments havebeentransmitted toMr.J.R.PadgettoftheMichiganPublicServiceCommission andtotheMichiganDepartment ofPublicHealth.Thisletterissubmitted pursuantto10CFR50.30(b)and,assuch,anoathstatement isattached.
Sincerely, VicePresident ehAttachments cc:A.A.Blind-BridgmanG.CharnoffJ.B.Martin-RegionIIINFEMSectionChiefNRCResidentInspector
-BridgmanJ.R.Padgett COUNTYOFFRANKLINE.E.Fitzpatrick, beingdulysworn,deposesandsaysthatheistheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTechnical Specification ChangeRequest:RevisetheTrainA/BBatteries'rofiles andModifyTrainNBatteries'rofiles andknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed andsworntobeforemethis~yAdayof19~>NTARYPUICRITA0.HILLNOTARYPOBI.IC,STATEOFOHIO Attachment 1toAEP:NRC:0896R 10CFR50.92 Determination forProposedChangestotheDonaldC.CookNuclearPlantUnits1and2Technical Specifications Attachment 1toAEP:NRC:0896R Page11.0SECTIONSTOBECHANGEDUnit1:Table4.8-2Table4.8-3Unit2:Table4.8-2Table4.8-32.0EXTENTOFCHANGES.Weareproposing torevisetheCDbatteries'Train A)andtheABbatteries'Train B)eighthourprofilestofourhourprofilesandweareproposing tomodifytheTrainNbatteries'xisting fourhourprofiles.
Additionally, weareproposing todeletealoadontheTrainBbatteries'oad list.3.0CHANGESREUESTEDIdentical changesarebeingsoughtforboththeUnit1andUnit2Technical Specifications.
RevisetheBatterEmerencLoadstablesTable4.8-2onpage3/48-15liststheeighthourBatteryEmergency LoadsfortheABandCDbatteries andTable4.8-3onpage3/48-19liststhefourhourBatteryEmergency LoadsfortheNbattery.Weareproposing torevisethesetables(asillustrated inAttachments 2and3)since,asaddressed inParagraph 2.0,wehaveproposedrevisionoftheTrainA/Bbatteries'ight hourprofilesandmodification oftheTrainNbattery's fourhourprofile.Additionally, weareproposing todeletetheFMOandTDTVvalve"Operating Sequence" listfromTable4.8-3sinceitisnolongerusedtoplaceactualloadsontheTrainNbatteryduringsurveillance testing.Instead,simulated loadsareplacedonthebatteryasallowedbyapreviousT/Schange(AEP:NRC:0896J).
DeletealoadfromtheABBatterLoadslistTable4.8-2onpage3/48-15listsasaloadthe"Computer StaticInverter".
Weareproposing todeletethisloadfromthetablesincethisloadwasphysically removedfromtheTrainBbatteryasafunctionofadesignchange.4.0DISCUSSION The250VDCSystemprovidesareliablesourceofcontinuous powerforsupplyandcontrolofplantsafetysystems.Includedinthe Attachment 1toAEP:NRC:0896R Page2safetysystemsarethereactortripsyst:em,engineered safetyfeatures, andauxiliary supportfeatures.
Anumberofdifferent DCplantloadsareservedfromeachofthemainandtransferdistribution cabinets.
Theplantloadsincludecontrolcircuits(switchgear 6annunciators),
staticinverters, valvecontrolcenters,emergency
: lighting, andmotorcontrolcenters,ingeneral,plusvitalbusinverters, fireprotection control,andmainturbinelubeoilpumps,inparticular.
TheNTrainloadsincludetheturbinedrivenauxfeedwater (TDAFW)controlbus,theAMSACinverter, andavalvecontrolcenter.Thissubmittal addresses thetestdurations fortheemergency loadsontheClass1Ebatteries andthedeletionofaloadontheTrainBbatteries.
ReasonforProosedTechnical Secification ChaneReuestTherearetworeasonsweareproposing achangetotheTechnical Specifications.
Thefirstdealswithchangingthedesigndutycyclesof'theTrainA/Bbatteries fromeighthourprofilestofourhourprofilesandmodifingtheexistingfourhourprofilesoftheNTrainbatteries.
Theseconddealswithremovingthe"Computer StaticInverter" loadfromtheABBatteryLoadsportionofTable4.8-2.Thefollowing discussion providesmoredetailsregarding theproposedchanges.TheexistingBatteryEmergency LoadstablesintheTechnical Specifications represent eighthourdutycyclesfortheA/BTrainbatteries andfourhourdutycyclesfortheNTrainbatteries.
Asdiscussed below,however,thenuclearrelatedDCloadsareonlytestedtothreehourseventhoughtheoverallprofileiseighthours.VhereasthisproposalintendsonlytomodifythefourhourdutycyclefortheNTrainbatteries, itintendstochangethedutycyclesfortheA/BTrainbatteries fromtheircurrenteighthourdutycyclesto"composite" fourhourdutycycles.Thedetailsofthischangefollow.A."TheexistingTrainA/Beighthourdutycyclescontaintwodistinctrequirements:
1)ThenuclearrelatedDCloadsarerequiredtobesuppliedbythebatteries forthreehours.ThisisbasedonaLOCA/LOOP event,afailureoftheassociated batterychargerandareasonable timetorestorethebatterychargerorsparechargertoservice.This.threehourrequirement isincludedinChapter8oftheUFSAR.
Attachment 1toAEP:NRC:0896R Page32)Theturbineshutdownloadsarerequiredforeighthourstoproperlycooldownthemainandfeedpumpturbines'il lubricated components.
Thisisbasedonoperational experience andisnotdiscussed intheUFSAR.B.SincethethreehourdutycycleshavetheirbasisintheUFSARandDonaldC.CookNuclearPlanthascommitted tofourhourstationblackout(SBO)dutycycles,thesetwodutycyclesformthebasisfortheproposedfourhourcomposite loadprofiles.
TheeighthourloadslistedintheexistingT/SBatteryEmergency Loadstablesarenolongervalidsinceafourhourcopingdurationhasbeenestablished forCookNuclearPlantuponaLossofAllAC(SBO)event.Thismeans,atworst,thatDC.loadsarerequiredonlytocopeforfourhoursonthebatteries withnoACpoweredbatterycharger.AsafunctionoftheStationBlackoutRule,fourhourloadprofilesweredeveloped fortheA/BTrainbatteries.
TheseprofilesincludeloadsheddingofcertainloadsonehourintotheeventasallowedbyNUMARC87-00andtheNRC.SinceSBOhasbecomeacondition foroperating theCookNuclearPlantandsincetheUFSARcontinues tobeacondition foroperating theplant,theproposedprofilesofrecordfortheClass1Ebatteries arecomposites ofboththethreehourUFSARloadprofilesandthefourhourSBOprofiles.
Thecomposite profilesenvelopebothoftheirconstituent profilesandassuchrepresent conservative sizing/application oftheClasslEbatteries.
FortheA/BTrainbatteries, itisdesiredtorevisethe"MinimumTime"columnoftheBatteryEmergency Loadstables(asillustrated inAttachments 2and3)toreflectthetimedurations includedinthecomposite profiles.
Thecomposite profilesofthebatteries (asdiscussed previously) envelopetheworstcaseconditions forthestationbatteries andaremaintained asformalcalculations inthePowerSystemsandHumanFactors(NEEP)sectionoftheNuclearEngineering Department (NE).FortheNTrainbatteries, itisdesiredtorevisethe"MinimumTime"columnandtoremovethevalveoperating sequencelistofTable4..8-3asshowninAttachments 2and3.Itshouldbenotedthatthesemodifications donotchangetheT/SfourhourdutycycleoftheNTrainbatteries.
Rather,themodifications areintendedtomoreaccurately reflecttheoperation oftheNTrainbatteryloads.asrecordedinthecomposite profilesforthesebatteries.
Removalofthevalveoperating sequenceportionof Attachment 1toAEP:NRC:0896R Page4thetablewillhavenoimpactonthetestingofthevalvestothecomposite profiles.
.Thislistisbeingremovedbecauseitisnolongerused.IthadbeenusedtoplaceactualloadsontheNTrainbatteries butsincetheapprovalofT/SchangeAEP:NRC;0896J, onlysimulated loadshavebeenplacedonthebatteries duringsurveillance testing.Thesebatteries willcontinuetobetestedtotheirdesignbasisdutycycles(composite profiles) usingsimulated loading.LiketheTrainA/Bcomposite
: profiles, theTrainNcomposite profilesenvelopetheworstcaseconditions forthesebatteries andaremaintained asformalcalculations intheNEEPsectionofNE.Itisdesiredtoremovethe"Computer StaticInverter" loadfromTable4.8-2(asshowninAttachments 2and3)sincethisloadwasphysically removedfromtheABBatteries asafunctionofdesignchangeRFC-12-2996, "UpgradePlantProcessComputerSystem".ThepowersupplyforthissystemisnowtheTechnical SupportCenterUninterruptible PowerSupplysystem.Justification forProosedTechnical Secification ChanesThecomposite loadprofilesfortheTrainA/Bbatteries arearesultofthecombination ofthethreehourLOCA/LOOP andfourhourSBObatteryloadprofiles.
ThethreehourLOCA/LOOP loadprofilesareafunctionoftheUFSARfortheCookNuclearPlantwhereasthefourhourSBOloadprofileswereperformed fortheNUMARC87-00StationBlackoutRule.Theseloadprofileswerecomparedtodetermine themostdemanding loadingofthestationbatteries.
SincetheLOCA/LOOP setofloadprofilesgenerally detailedahigherfirst-minute loadandtheSBOsetyieldedalongerloadingperiod,thecomposite loadprofilesweredeveloped toenvelopetheworstcaseprofilesforeachbattery.Thesecomposite loadprofilesareintendedforuseasthemodelsforperformance ofthe18-monthsurveillance testingofthebatteries.
Additionally, sinceCookNuclearPlanthasbeendesignated asafourhourplaneforanSBOevent,retaining theeighthourbatterydutycyclesisnolongerjustifiable.
Thecomposite loadprofilesfortheNTrainbatteries, whichremainunchanged atfourhoursinduration, aremoreconservative andmoreaccurately reflectthepostulated loadsonthesebatteries thanwhatislistedintheTechnical Specifications.
Thecomposite loadprofilesareintendedforuseasthemodelsforperformance ofthe18-monthsurveillance testingofthebatteries.
Thevalveoperating sequencelistofTable4.8-3isbeingremovedbecauseitisnolongerusedtoplaceactualloadson.theNTrainbatteries duringsurveillance testing.Instead, Attachment 1toAEP:NRC:0896R Page5theNTrainbatteries willcontinuetobetested(usingthecomposites profilesasthebasis)usingsimulated loads.Thejustification forremovingtheComputerStaticInverterLoadfromtheABBatteryLoadslistisself-explanatory.
5.010CFR50.92CRITERIAPer10CFR50.92,aproposedamendment doesnotinvolveas'ignificant hazardsconsideration ifthechangedoesnot:(1)involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.
(2)createthepossibility ofanewordifferent kindofaccidentfromanypreviously analyzed.
(3)involveasignificant reduction inamarginofsafety.Criterion 1ThechangeisproposedtocomplywiththeLOCA/LOOP andSBOrequirement forCookNuclearPlantforbatterytesting.Thecomposite testasaddressed abovemeetstheserequirements forfourhourtestprofiles.
Thischangeisconsistent withtheUFSARthreehourLOCA/LOOP andNUMARC87-00StationBlackoutRulefourhour.Basedontheseconsiderations, theproposedchangedoesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.
Criterion 2Thechangeonlyaddresses thebatteryprofiletestwhichmeetsbothLOCA/LOOP andSBOforCookNuclearPlant.Nospecificphysicaloroperational changestotheplantwilloccurduetothischange.Thus,thechangewillnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated.
Criterion 3Theproposedchangerevisesthebatteryprofiletesttablefromaneighthourtoafourhourcomposite testwhichcomplieswithbothLOCA/LOOP andSBOasdefinedforCookNuclearPlant.Therefore, theproposedchangedoesnotinvolveasignificant reduction inamarginofsafety.}}

Revision as of 08:15, 29 June 2018

Application for Amends to Licenses DPR-58 & DPR-74,revising TS Table 4.8-2 from Eight H to Composite Four H Battery Emergency Loads for AB (Train-B) & Cd (Train-A) Batteries & Deleting Load on Train B Batteries Load List
ML17331B143
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 12/20/1993
From: FITZPATRICK E
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: MURLEY T E
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17331B144 List:
References
AEP:NRC:0896R, AEP:NRC:896R, NUDOCS 9312290102
Download: ML17331B143 (11)
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Text

ACCELERATED 7S'BUBUTION DEMONMWTIONSYSTEM4REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316

SUBJECT:

Application foramendstolicensesDPR-586DPR-74,revising TSTable4.8-2fromeighthtocomposite fourhbatteryemergency loadsforAB(Train-B) 6CD(Train-A) batteries 6deletingloadonlTrainBbatteries loadlist.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR

!ENCLISIZE:TITLE:ORSubmittal:

GeneralDistribution NOTESACCESSION NBR:9312290102 DOC.DATE:

93/12/20NOTARIZED:

YESFACIL:50-315 DonaldC.CookNuclearPowerPlant,,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E.

IndianaMichiganPowerCo.(formerly Indiana6MichiganEle'ECIP.NAME RECIPIENT AFFILIATION MURLEY,T.E.

DocumentControlBranch(Document ControlDesk)RRECIPIENT IDCODE/NAME PD3-1LAHICKMAN,J INTERNAL:

NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS2EXTERNAL:

NRCPDRCOPIESLTTRENCL1122111111111011RECIPIENT IDCODE/NAME PD3-1PDNRR/DORS/OTS BNRR/DRPNNRR/DSSA/SRXB O~CBCREGF01NSICCOPIESLTTRENCL111,1111110111.1DDDNOTETOALL"RIDS"RECIPIENTS:

DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR16ENCL14 IndianaMichiga~~

PowerCompan~P.O.Box16631Columbus, OH432165AEP:NRC:0896R DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATION CHANGEREQUEST:REVISETHETRAINA/BBATTERIES'ROFILES ANDMODIFYTRAINNBATTERIES'ROFILES U.S.NuclearRegulatory Commission DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyDecember20,1993

DearDr.Murley:

Thisletteranditsattachments constitute anapplication foramendment.

totheTechnical Specifications (T/S)fortheDonaldC.CookNuclearPlantUnits1and2inaccordance with10CFR50.90.TheproposedchangerevisesT/STable4.8-2fromeighthourtocomposite fourhourBatteryEmergency LoadsforAB(TRAIN-B) andCD(TRAIN-A) batteries.

Inaddition, weareproposing todeletealoadontheTrainBbatteries loadlist.Also,thisproposedchangemodifiesT/STable4.8-3fortheNTrainbatteries toaccurately reflecttheoperation loadsofthesebatteries asrecordedintheircomposite profiles.

Thischangeisconsistent withLOCA/LOOP andStationBlackoutforDonaldC.CookNuclearPlantandthenewStandardTechnical Specifications forWestinghouse plants,published bytheNRCasNUREG1431,datedSeptember 28,1992.Attachment 1providesadetaileddescription oftheproposedchange,thejustification forthechange,andourproposeddetermination ofnosignificant hazardsconsideration performed pursuantto10CFR50.92.Attachment 2containstheexistingT/Spagesmarkedtoreflecttheproposedchange.Attachment 3containstheproposed, revisedT/Spages."700>39312290102 931220'DR ADOCK05000315'

'PDR

'

aDr.T.E.Murley-2-AEP:NRC:0896R Webelievethattheproposedchangewillnotresultin(1)asignificant changeinthetypesofeffluents orasignificant increaseintheamountofanyeffluents thatmaybereleasedoffsite,and(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheproposedchangehasbeenreviewedbythePlantNuclearSafetyReviewCommittee andbytheNuclearSafetyandDesignReviewCommittee.

Incompliance withtherequirements of10CFR50.91(b)(1),

copiesofthisletteranditsattachments havebeentransmitted toMr.J.R.PadgettoftheMichiganPublicServiceCommission andtotheMichiganDepartment ofPublicHealth.Thisletterissubmitted pursuantto10CFR50.30(b)and,assuch,anoathstatement isattached.

Sincerely, VicePresident ehAttachments cc:A.A.Blind-BridgmanG.CharnoffJ.B.Martin-RegionIIINFEMSectionChiefNRCResidentInspector

-BridgmanJ.R.Padgett COUNTYOFFRANKLINE.E.Fitzpatrick, beingdulysworn,deposesandsaysthatheistheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTechnical Specification ChangeRequest:RevisetheTrainA/BBatteries'rofiles andModifyTrainNBatteries'rofiles andknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed andsworntobeforemethis~yAdayof19~>NTARYPUICRITA0.HILLNOTARYPOBI.IC,STATEOFOHIO Attachment 1toAEP:NRC:0896R 10CFR50.92 Determination forProposedChangestotheDonaldC.CookNuclearPlantUnits1and2Technical Specifications Attachment 1toAEP:NRC:0896R Page11.0SECTIONSTOBECHANGEDUnit1:Table4.8-2Table4.8-3Unit2:Table4.8-2Table4.8-32.0EXTENTOFCHANGES.Weareproposing torevisetheCDbatteries'Train A)andtheABbatteries'Train B)eighthourprofilestofourhourprofilesandweareproposing tomodifytheTrainNbatteries'xisting fourhourprofiles.

Additionally, weareproposing todeletealoadontheTrainBbatteries'oad list.3.0CHANGESREUESTEDIdentical changesarebeingsoughtforboththeUnit1andUnit2Technical Specifications.

RevisetheBatterEmerencLoadstablesTable4.8-2onpage3/48-15liststheeighthourBatteryEmergency LoadsfortheABandCDbatteries andTable4.8-3onpage3/48-19liststhefourhourBatteryEmergency LoadsfortheNbattery.Weareproposing torevisethesetables(asillustrated inAttachments 2and3)since,asaddressed inParagraph 2.0,wehaveproposedrevisionoftheTrainA/Bbatteries'ight hourprofilesandmodification oftheTrainNbattery's fourhourprofile.Additionally, weareproposing todeletetheFMOandTDTVvalve"Operating Sequence" listfromTable4.8-3sinceitisnolongerusedtoplaceactualloadsontheTrainNbatteryduringsurveillance testing.Instead,simulated loadsareplacedonthebatteryasallowedbyapreviousT/Schange(AEP:NRC:0896J).

DeletealoadfromtheABBatterLoadslistTable4.8-2onpage3/48-15listsasaloadthe"Computer StaticInverter".

Weareproposing todeletethisloadfromthetablesincethisloadwasphysically removedfromtheTrainBbatteryasafunctionofadesignchange.4.0DISCUSSION The250VDCSystemprovidesareliablesourceofcontinuous powerforsupplyandcontrolofplantsafetysystems.Includedinthe Attachment 1toAEP:NRC:0896R Page2safetysystemsarethereactortripsyst:em,engineered safetyfeatures, andauxiliary supportfeatures.

Anumberofdifferent DCplantloadsareservedfromeachofthemainandtransferdistribution cabinets.

Theplantloadsincludecontrolcircuits(switchgear 6annunciators),

staticinverters, valvecontrolcenters,emergency

lighting, andmotorcontrolcenters,ingeneral,plusvitalbusinverters, fireprotection control,andmainturbinelubeoilpumps,inparticular.

TheNTrainloadsincludetheturbinedrivenauxfeedwater (TDAFW)controlbus,theAMSACinverter, andavalvecontrolcenter.Thissubmittal addresses thetestdurations fortheemergency loadsontheClass1Ebatteries andthedeletionofaloadontheTrainBbatteries.

ReasonforProosedTechnical Secification ChaneReuestTherearetworeasonsweareproposing achangetotheTechnical Specifications.

Thefirstdealswithchangingthedesigndutycyclesof'theTrainA/Bbatteries fromeighthourprofilestofourhourprofilesandmodifingtheexistingfourhourprofilesoftheNTrainbatteries.

Theseconddealswithremovingthe"Computer StaticInverter" loadfromtheABBatteryLoadsportionofTable4.8-2.Thefollowing discussion providesmoredetailsregarding theproposedchanges.TheexistingBatteryEmergency LoadstablesintheTechnical Specifications represent eighthourdutycyclesfortheA/BTrainbatteries andfourhourdutycyclesfortheNTrainbatteries.

Asdiscussed below,however,thenuclearrelatedDCloadsareonlytestedtothreehourseventhoughtheoverallprofileiseighthours.VhereasthisproposalintendsonlytomodifythefourhourdutycyclefortheNTrainbatteries, itintendstochangethedutycyclesfortheA/BTrainbatteries fromtheircurrenteighthourdutycyclesto"composite" fourhourdutycycles.Thedetailsofthischangefollow.A."TheexistingTrainA/Beighthourdutycyclescontaintwodistinctrequirements:

1)ThenuclearrelatedDCloadsarerequiredtobesuppliedbythebatteries forthreehours.ThisisbasedonaLOCA/LOOP event,afailureoftheassociated batterychargerandareasonable timetorestorethebatterychargerorsparechargertoservice.This.threehourrequirement isincludedinChapter8oftheUFSAR.

Attachment 1toAEP:NRC:0896R Page32)Theturbineshutdownloadsarerequiredforeighthourstoproperlycooldownthemainandfeedpumpturbines'il lubricated components.

Thisisbasedonoperational experience andisnotdiscussed intheUFSAR.B.SincethethreehourdutycycleshavetheirbasisintheUFSARandDonaldC.CookNuclearPlanthascommitted tofourhourstationblackout(SBO)dutycycles,thesetwodutycyclesformthebasisfortheproposedfourhourcomposite loadprofiles.

TheeighthourloadslistedintheexistingT/SBatteryEmergency Loadstablesarenolongervalidsinceafourhourcopingdurationhasbeenestablished forCookNuclearPlantuponaLossofAllAC(SBO)event.Thismeans,atworst,thatDC.loadsarerequiredonlytocopeforfourhoursonthebatteries withnoACpoweredbatterycharger.AsafunctionoftheStationBlackoutRule,fourhourloadprofilesweredeveloped fortheA/BTrainbatteries.

TheseprofilesincludeloadsheddingofcertainloadsonehourintotheeventasallowedbyNUMARC87-00andtheNRC.SinceSBOhasbecomeacondition foroperating theCookNuclearPlantandsincetheUFSARcontinues tobeacondition foroperating theplant,theproposedprofilesofrecordfortheClass1Ebatteries arecomposites ofboththethreehourUFSARloadprofilesandthefourhourSBOprofiles.

Thecomposite profilesenvelopebothoftheirconstituent profilesandassuchrepresent conservative sizing/application oftheClasslEbatteries.

FortheA/BTrainbatteries, itisdesiredtorevisethe"MinimumTime"columnoftheBatteryEmergency Loadstables(asillustrated inAttachments 2and3)toreflectthetimedurations includedinthecomposite profiles.

Thecomposite profilesofthebatteries (asdiscussed previously) envelopetheworstcaseconditions forthestationbatteries andaremaintained asformalcalculations inthePowerSystemsandHumanFactors(NEEP)sectionoftheNuclearEngineering Department (NE).FortheNTrainbatteries, itisdesiredtorevisethe"MinimumTime"columnandtoremovethevalveoperating sequencelistofTable4..8-3asshowninAttachments 2and3.Itshouldbenotedthatthesemodifications donotchangetheT/SfourhourdutycycleoftheNTrainbatteries.

Rather,themodifications areintendedtomoreaccurately reflecttheoperation oftheNTrainbatteryloads.asrecordedinthecomposite profilesforthesebatteries.

Removalofthevalveoperating sequenceportionof Attachment 1toAEP:NRC:0896R Page4thetablewillhavenoimpactonthetestingofthevalvestothecomposite profiles.

.Thislistisbeingremovedbecauseitisnolongerused.IthadbeenusedtoplaceactualloadsontheNTrainbatteries butsincetheapprovalofT/SchangeAEP:NRC;0896J, onlysimulated loadshavebeenplacedonthebatteries duringsurveillance testing.Thesebatteries willcontinuetobetestedtotheirdesignbasisdutycycles(composite profiles) usingsimulated loading.LiketheTrainA/Bcomposite

profiles, theTrainNcomposite profilesenvelopetheworstcaseconditions forthesebatteries andaremaintained asformalcalculations intheNEEPsectionofNE.Itisdesiredtoremovethe"Computer StaticInverter" loadfromTable4.8-2(asshowninAttachments 2and3)sincethisloadwasphysically removedfromtheABBatteries asafunctionofdesignchangeRFC-12-2996, "UpgradePlantProcessComputerSystem".ThepowersupplyforthissystemisnowtheTechnical SupportCenterUninterruptible PowerSupplysystem.Justification forProosedTechnical Secification ChanesThecomposite loadprofilesfortheTrainA/Bbatteries arearesultofthecombination ofthethreehourLOCA/LOOP andfourhourSBObatteryloadprofiles.

ThethreehourLOCA/LOOP loadprofilesareafunctionoftheUFSARfortheCookNuclearPlantwhereasthefourhourSBOloadprofileswereperformed fortheNUMARC87-00StationBlackoutRule.Theseloadprofileswerecomparedtodetermine themostdemanding loadingofthestationbatteries.

SincetheLOCA/LOOP setofloadprofilesgenerally detailedahigherfirst-minute loadandtheSBOsetyieldedalongerloadingperiod,thecomposite loadprofilesweredeveloped toenvelopetheworstcaseprofilesforeachbattery.Thesecomposite loadprofilesareintendedforuseasthemodelsforperformance ofthe18-monthsurveillance testingofthebatteries.

Additionally, sinceCookNuclearPlanthasbeendesignated asafourhourplaneforanSBOevent,retaining theeighthourbatterydutycyclesisnolongerjustifiable.

Thecomposite loadprofilesfortheNTrainbatteries, whichremainunchanged atfourhoursinduration, aremoreconservative andmoreaccurately reflectthepostulated loadsonthesebatteries thanwhatislistedintheTechnical Specifications.

Thecomposite loadprofilesareintendedforuseasthemodelsforperformance ofthe18-monthsurveillance testingofthebatteries.

Thevalveoperating sequencelistofTable4.8-3isbeingremovedbecauseitisnolongerusedtoplaceactualloadson.theNTrainbatteries duringsurveillance testing.Instead, Attachment 1toAEP:NRC:0896R Page5theNTrainbatteries willcontinuetobetested(usingthecomposites profilesasthebasis)usingsimulated loads.Thejustification forremovingtheComputerStaticInverterLoadfromtheABBatteryLoadslistisself-explanatory.

5.010CFR50.92CRITERIAPer10CFR50.92,aproposedamendment doesnotinvolveas'ignificant hazardsconsideration ifthechangedoesnot:(1)involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.

(2)createthepossibility ofanewordifferent kindofaccidentfromanypreviously analyzed.

(3)involveasignificant reduction inamarginofsafety.Criterion 1ThechangeisproposedtocomplywiththeLOCA/LOOP andSBOrequirement forCookNuclearPlantforbatterytesting.Thecomposite testasaddressed abovemeetstheserequirements forfourhourtestprofiles.

Thischangeisconsistent withtheUFSARthreehourLOCA/LOOP andNUMARC87-00StationBlackoutRulefourhour.Basedontheseconsiderations, theproposedchangedoesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated.

Criterion 2Thechangeonlyaddresses thebatteryprofiletestwhichmeetsbothLOCA/LOOP andSBOforCookNuclearPlant.Nospecificphysicaloroperational changestotheplantwilloccurduetothischange.Thus,thechangewillnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated.

Criterion 3Theproposedchangerevisesthebatteryprofiletesttablefromaneighthourtoafourhourcomposite testwhichcomplieswithbothLOCA/LOOP andSBOasdefinedforCookNuclearPlant.Therefore, theproposedchangedoesnotinvolveasignificant reduction inamarginofsafety.

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