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| {{#Wiki_filter:ACCELERATED7S'BUBUTIONDEMONMWTIONSYSTEM4REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DOCKET0500031505000316 | | {{#Wiki_filter:ACCELERATED 7S'BUBUTION DEMONMWTIONSYSTEM4REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316 |
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| ==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 |
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| ==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 |
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| 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.}} |
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Category:OPERATING LICENSES-APPLIATION TO AMEND-RENEW EXISTING
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Technical Rept Presenting Justificaion for Changes Encl ML17334B5741996-02-26026 February 1996 Application for Amends to Licenses DPR-58 & DPR-74,modifying TS 5.6.2 to Increase Current Limit on Nominal Fuel Assembly Enrichment for New,Westinghouse - Fabricated Fuel Stored in New Fuel Storage Racks ML17333A3201996-02-22022 February 1996 Application for Amends to Licenses DPR-58 & DPR-74,proposing to Remove Requirement That Operations Superintendent Must Hold or Have Held Sol at Plant or Similar Reactor ML17333A3151996-02-22022 February 1996 Application for Amends to Licenses DPR-58 & DPR-74,modifying Table 4.8-1,DG Test Schedule by Ref Rg 1.9,Rev 3 Rather than Rg 1.108,Rev 1 Criteria for Determination of Valid DG Test ML17333A2641996-01-12012 January 1996 Application for Amends to Licenses DPR-58 & DPR-74,modifying TS Section 4.4.11 to Eliminate SR Demonstrating Operability of Emergency Power Supply for Pressurizer PORVs & Block Valves ML17333A2391995-12-19019 December 1995 Application for Amends to Licenses DPR-58 & DPR-74,modifying TS 3/4.6.1.2,3/4.6.1.3,3/4.6.1.6 & 3/4.6.1.6 to Require Types A,B & C Tests (Overall Integrated & Local Containment Leakage Rate) to Be Performed Per 10CFR50,App J Option B ML17332B0111995-11-10010 November 1995 Application for Amends to Licenses DPR-58 & DPR-74,revising Ts,By Modifying Surveillance Testing of EDG During Refueling & Normal Operations ML17332A9971995-10-20020 October 1995 Application for Amends to Licenses DPR-58 & DPR-74,proposing to Add Exemption to TS 4.0.4 in Surveillance Requirements for MSIV ML17332A9111995-08-0606 August 1995 Application for Amends to Licenses DPR-58 & DPR-74,informing That Licensee Has 45 Days from Date of Issuance to Implement Amend Unless Otherwise Specified ML17334B5561995-08-0404 August 1995 Application for Exigent Amend to License DPR-58,modifying TS 4.4.5.4 & 4.4.5.5 for Repair of Hybrid Expansion Joint Sleeved SG Tubes.Proprietary W Rept WCAP-14446, Repair...Of Hybrid Expansion Joint...Tubes Encl.W Rept Withheld ML17332A8271995-06-30030 June 1995 Application for Amends to Licenses DPR-58 & DPR-74,changing TS Section 5.3.1 to Allow Fuel Reconstitution,Per GL 90-02, Suppl 1 ML17334B5501995-06-20020 June 1995 License Amend Request to Licenses DPR-58 & DPR-74,to Remove Requirements for Fire Protection Systems from Licenses & Guidance in GL 86-10,GL 88-12 & GL 93-07 ML17332A7991995-06-15015 June 1995 Application for Amends to Licenses DPR-58 & DPR-74,revising TS 4.8.1.1.2.e.7 to Reduce Duration of Surveillance Testing for EDGs During Refueling Operations from 24 H to 8 H ML17334B5481995-05-26026 May 1995 Application for Amends to Licenses DPR-58 & DPR-74.Amends Would Support Operation of Unit 1 at SG Tube Plugging Levels Up to 30%,make One Unit 1 TS More Nearly Like Corresponding Unit 2 TS & Maintain Consistency of Unit 2 Criteria ML17334B5461995-05-26026 May 1995 Application for Amends to Licenses DPR-58 & DPR-74,modifying Tech Specs 3/4.3.1 (Reactor Trip Sys Instrumentation) & 3/4.3.2 (ESFAS Instrumentation) & Bases to Relocate Tables of Response Time Limits to Ufsar,Per GL 93-08 ML17332A7661995-05-25025 May 1995 Application for Amends to Licenses DPR-58 & DPR-74.Amends Would Incorporate Cycle & Burnup Dependent Peaking Factor Penalty ML17332A7741995-05-25025 May 1995 Application for Amends to Licenses DPR-58 & DPR-74,modifying TS 5.3.1 to Allow Fuel Reconstitution,Per GL 90-02,Suppl 1 ML17332A7771995-05-25025 May 1995 Application for Amends to Licenses DPR-58 & DPR-74,modifying TS Table 4.3-2 to Change Main Steam Line Isolation Valve Manual Actuation Sys Surveillance Frequency from Monthly to Quarterly 1999-09-23
[Table view] Category:TEXT-LICENSE APPLICATIONS & PERMITS
MONTHYEARML17335A5551999-10-12012 October 1999 Application for Amends to Licenses DPR-58 & DPR-74,revising TS Surveillance Requirement 4.6.2.2.d for Spray Additive Sys to Relocate Details Associated with Acceptance Criteria & Test Parameters to Associated TS Bases ML17335A5591999-10-11011 October 1999 Supplement to Application for Amends to Licenses DPR-58 & DPR-74,replacing Correct TS Pages Inadvertently Included in 990923 Submittal.Attached Pages Also Include Appropriate Administrative Changes ML17335A5411999-10-0101 October 1999 Application for Amends to Licenses DPR-58 & DPR-74,revising Containment Recirculation Sump Water Inventory.Calculation & non-proprietary WCAP-15302 Rept Also Encl ML17326A1571999-09-23023 September 1999 Application for Amends to Licenses DPR-58 & DPR-74,involving Movement of Loads in Excess of Design Basis Seismic Capability of Auxiliary Bldg Load Handling Equipment & Structures ML17326A1421999-09-17017 September 1999 Application for Amends to Licenses DPR-58 & DPR-74,to Allow Credit of Rod Cluster Control Assemblies for Cold Leg Large Break LOCA Subcriticality.Ts Pages & non-proprietary Versions of WCAP-15246 Encl.Proprietary Version Withheld ML17326A1161999-09-10010 September 1999 Application for Amends to Licenses DPR-58 & DPR-74,revising TS Surveillance Requirement 4.4.7,TS Tables 4.4-3,3.4-1 & TS Surveillance Requirement 4.11.2.2 Re RCS & Gas Storage Tank Sampling ML17326A0921999-08-17017 August 1999 Application for Amend to License DPR-58,to Change TS 3/4.4.5 & Bases for TS 3/4.4.5,3/4.4.6.2 & 3/4.4.8 to Remove voltage-based Repair Criteria,F* Repair Criteria & Sleeving Methodologies from Unit 1 TS & Clarify Bases Sections ML17325B6041999-05-21021 May 1999 Application for Amends to Licenses DPR-58 & DPR-74,revising Limitations of Positive Reactivity Additions in Several TS Action Statements ML17325B5511999-04-19019 April 1999 Application for Amends to Licenses DPR-58 & DPR-74,revising TS 3/4.8.1.2, Electrical Power Systems & Associated Bases to Provide one-time Extension of 18-month Surveillance Interval for Specific SRs ML17335A3661998-12-0303 December 1998 Application for Amends to Licenses DPR-58 & DPR-74,adding TS for Distributed Ignition Sys ML17335A3631998-12-0303 December 1998 Application for Amend to License DPR-58,revising TS 3/4.7.7, Sealed Source Contamination & Associated Bases to Address Testing Requirements for Fission Detectors ML17335A3591998-12-0303 December 1998 Application for Amends to Licenses DPR-58 & DPR-74,making Administrative Changes to Remove Obsolete Info,To Provide Consistency Between Units 1 & 2,to Provide Consistency with Std Tech Specs,To Provide Clarification & to Correct Typos ML17335A3561998-12-0303 December 1998 Application for Amends to Licenses DPR-58 & DPR-74,revising TS 4.6.5.1, Ice Condenser,Ice Bed & Associated Bases to Reflect Max Ice Condenser Flow Channel Blockage Assumed in Accident Analyses ML17335A2631998-10-0808 October 1998 Application for Amends to Licenses DPR-58 & DPR-74,revising TS Containment Sys Bases 3/4.6.1.4 Re Internal Pressure & 3/4.6.1.5 Re Air Temp ML17335A2761998-10-0808 October 1998 Application for Amends to Licenses DPR-58 & DPR-74,placing Tighter Restrictions on Amount of Time RWST Water Level Instrumentation Can Be Out of Svc Before Compensatory Actions Are Required ML17335A2671998-10-0808 October 1998 Application for Amends to Licenses DPR-58 & DPR-74,revising TS 3.4.1.3, RCS - Shutdown & Associated Bases to Provide Separate Requirements for Modes 4 & 5 with Loops Filled & Mode 5 with Loops Not Filled ML17335A2311998-09-14014 September 1998 Application for Amends to Licenses DPR-58 & DPR-74,changing Runout Limits for Safety Injection Pump to 675 Gpm Unless Pump Is Specifically Tested to Higher Flow Rate Not Exceeding 700 Gpm ML17335A1901998-08-28028 August 1998 Application for Amend to License DPR-58,requesting Extension of SG Surveillance,Which TSs Require to Be Performed on or Before 990408,until End of Current Refuel Cycle Currently Scheduled for Mar 2000.W/assessment of SG Degradation & TSs ML17334A7471998-06-10010 June 1998 Application for Amends to Licenses DPR-54 & DPR-78,changing Implementation Date to Reduce Boric Acid Concentration in Boric Acid Storage Sys.Attachment 1 to Ltr Contains Description of Proposed Change & Justification for Change ML17334B7011998-03-0303 March 1998 Application for Amends to TS for Licenses DPR-58 & DPR-74, Removing Word Immediately from Unit 1 Hydrogen Recombiner Surveillance Requirement 4.6.4.2.b.4 & Revising Plants TS 3/4.6.4 Bases ML17334B6561997-10-0808 October 1997 Application for Amends to Licenses DPR-58 & DPR-78,changing TSs 3/4.6.5 & 3/4.5.5 to Increase Both Minimum Required Ice Mass Per Ice Basket & Total Minimum Required Ice Mass. 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[Table view] |
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:
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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'
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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.