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{{#Wiki_filter:~A!"CEIZRATED3]STRIBUTIONDEMONSTRTIONSYPI'EMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8901310204DOC.DATE:89/01/23NOTARIZED:NODOCKETFACIL:50-315Donald'C.CookNuclearPowerPlant,Unit1,Indiana&05000315:"50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316'UTH.NAME.AUTHORAFFILIATIONALEXICH,M.P.IndianaMichiganPowerCo.(formerlyIndiana&MichiganEle'fRECIP.NAMERECIPIENTAFFILIATIONRDocumentControlBranch(DocumentControlDesk)J
{{#Wiki_filter:~A!"CEIZRATED 3]STRIBUTION DEMONSTRTIONSYPI'EMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8901310204 DOC.DATE:
89/01/23NOTARIZED:
NODOCKETFACIL:50-315 Donald'C.
CookNuclearPowerPlant,Unit1,Indiana&05000315:"
50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316'UTH.
NAME.AUTHORAFFILIATION ALEXICH,M.P.
IndianaMichiganPowerCo.(formerly Indiana&MichiganEle'fRECIP.NAME RECIPIENT AFFILIATION RDocumentControlBranch(Document ControlDesk)J


==SUBJECT:==
==SUBJECT:==
ApplicationforamendstoLicensesDPR-58&DPR-74,revisingfareprotectionprogramreRCSwiderangetempindication.DISTRIBUTIONCODE:A006DCOPIESRECEIVED:LTRlENCLISIZE:6++TITLE:OR/LicensingSubmittal:FireProtectionSNOTES:RECIPIENTIDCODE/NAMEPD3-1LASTANG,JCOPIESLTTRENCL1011RECIPIENTIDCODE/NAMEPD3-1PDCOPIESLTTRENCL55iiDINTERNAL:ARM/DAF/LFMBNRR/DEST/ADS7ENRR/ECEBOGC/HDS1EXTERNAL:LPDRNSIC101122101'11NRRWERMEIL,JNRR/DEST/PSB8DNUDOCS-ABSTRACTIKENRCPDR10,.11111111>c4(0PNVZE'IOALL"RIDS"RECIPZEPIS'IZASEHELPUSIOREDUCEWASTE)CORI'ACZSHEDOCXJMENT(XKEKLDESK,RQCMP1-37(EZT.20079)KOEZZHXNMZEYOURKQhEFMMDISTRIBUTIONLISTSPORDOCtlMERZSYOUDONiTNEEDfSDDSTOTALNUMBEROFCOPIESREQUIRED:LTTR19ENCL15  
Application foramendstoLicensesDPR-58&DPR-74,revising fareprotection programreRCSwiderangetempindication.
DISTRIBUTION CODE:A006DCOPIESRECEIVED:LTR lENCLISIZE:6++TITLE:OR/Licensing Submittal:
FireProtection SNOTES:RECIPIENT IDCODE/NAME PD3-1LASTANG,JCOPIESLTTRENCL1011RECIPIENT IDCODE/NAME PD3-1PDCOPIESLTTRENCL55iiDINTERNAL:
ARM/DAF/LFMB NRR/DEST/ADS 7ENRR/ECEBOGC/HDS1EXTERNAL:
LPDRNSIC101122101'11NRRWERMEIL,J NRR/DEST/PSB 8DNUDOCS-ABSTRACT IKENRCPDR10,.11111111>c4(0PNVZE'IOALL"RIDS"RECIPZEPIS'IZASE HELPUSIOREDUCEWASTE)CORI'ACZSHEDOCXJMENT (XKEKLDESK,RQCMP1-37(EZT.20079)KOEZZHXNMZE YOURKQhEFMMDISTRIBUTION LISTSPORDOCtlMERZS YOUDONiTNEEDfSDDSTOTALNUMBEROFCOPIESREQUIRED:
LTTR19ENCL15  


indianaMichiganPowerCompanyP.O.Box16631Columbus,OH43216AEP'NRC:0692BQDonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74REVISEDAPPENDIXRREMOTESHUTDOWNTECHNICALSPECIFICATIONSFORRCSWIDERANGETEMPERATUREINDICATIONU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Attn:T.E.MurleyJanuary23,1989
indianaMichiganPowerCompanyP.O.Box16631Columbus, OH43216AEP'NRC:0692BQ DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74REVISEDAPPENDIXRREMOTESHUTDOWNTECHNICAL SPECIFICATIONS FORRCSWIDERANGETEMPERATURE INDICATION U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyJanuary23,1989


==DearDr.Murley:==
==DearDr.Murley:==
Int:roductionThepurposeofthisletteristorequestachangeinourapprovedfireprotectionprogramregardingreactorcoolantsystemwideranget:emperatureindication.ThisletterrevisesourapplicationforamendmenttotheTechnicalSpecifications(T/Ss)submittedinAEP:NRC:0692BJdatedJune16,198&.ThevalidityofoursignificanthazardsanalysissubmittedinAEP:NRC:0692BJisunaffectedandconsequentlyanewsignificanthazardsanalysishasnotbeenincludedinthisletter.Attachment1t:othisletterprovidestheproposedrevisedT/SpagesthatareintendedtoreplacethecorrespondingpagessubmittedinAEP:NRC:0692BJ.ThisrequestisalsosubmittedinaccordancewiththeguidelinesinSectionFonpage4ofGenericLetter86-10,"ImplementationofFireProtectionRequirements."Thisgenericletterstates:"IfthefireprotectionprogramcommittedtobythelicenseeisrequiredbyaspecificlicenseconditionorisnotpartoftheFSARforthefacility,t:heprovisionsof10CFR50.59maynotbeappliedtomakechangeswithoutpriorNRCapproval.Thuslicenseesmayberequiredtosubmitamendmentrequestsevenforrelativelyminorchangestothefireprotectionprogram."Section4of"SafeShutdownCapabilityAssessment,ProposedModifications,andEvaluations-Revision1"fortheDonaldC.CookNuclearPlant,submittedbyAEP:NRC:0692AZdatedMarch20,1987,identifiesreactorcoolantsystemwiderangehotlegandcoldlegtemperatureindicationsassafeshutdowncomponents.Theseindicationsareincludedassafeshutdowncomponentsbecausethedifferencebetweenthehotlegandcoldlegwiderangetemperaturesprovidesadirectindicationoftheexistenceofa890i3i0204890123PDR,AOOCK05000315PPDC P~V7I'I'hIk~g~r Dr.T.E.Murley-2-AEP:NRC:0692BQnaturalcirculationcondition.Furthermore,reactorcoolantsystempressureismaintainedbymonitoxingreactorcoolantsystempressureandhotlegtemperatureinstrumentationand,ifavailable,usingmanualcontrolofthepressurizerheaters(notrequiredforsafeshutdown)toensurethatanappropriatesubcoolingmarginisachieved.WiderangehotlegandcoldlegtemperaturedetectionisprovidedbyRTDslocatedineachofthehotandcoldlegsforatotalofeightRTDs.SignalsfromtheseRTDsarerecordedinthecontrolroomanddisplayedonlocalshutdownindication(LSI)panels.Widerangehotlegandcoldlegtemperatureindicationsforreactorcoolantsystemloops1and4areavailableatLSI-5andtheseindicationsforreactorcoolantsystemloops2and3areavailableatLSI-6.ThehotandcoldlegtemperatureindicationsofallfourcoolantloopsareavailableatLSI-4.ThesaturationmeteralsotakesinputsfromtheseRTDs.Thehotlegtemperaturesfromloops1and3areinputtedtothereactorvessellevelindicationsystem(RVLIS)aswell.Thepresentpowersupplyconfigurationforthereactorcoolantsystemwiderangehotlegandcoldlegtemperatuxeindicationisbasedona10CFR50AppendixRmodificationthatinvolvesprovidingpowerfromasinglediesel-backedbus.Aswitchablealternatepowersupplyfromthematchingoppositeunitbusisprovidedforcertainfirescenarios.ThispresentAppendixRdesignensurestheabilitytomonitorthewiderangehotlegandcoldlegtemperatureofatleast.twoofthefourreactorcoolantsystemloopsintheeventofanysinglefire.Sections4and5of"SafeShutdownCapabilityAssessment,ProposedModifications,andEvaluations-Revision1,"describesreactorcoolantsystemtemperaturemonitoringinstrumentationaspresentedabove.Descri.tionofProosedChaneWeproposetoremovethewiderangehotlegandcoldlegtemperatureindicationsofreactorcoolantsystemloops1and3fromthelocalshutdownindicationpanels.WiderangereactorcoolantsystemtemperaturemonitoringfallsunderthescopeofRegulatoryGuide1.97,Revision3.ThereasonforrequestingthisproposedchangeistomeettheCategory1redundancycriteriaforthecoolantinventoryvariable(RVLIS),identifiedasItemNo.B-9onpage26ofAEP:NRC:0773AB.Thisletter,submittedtotheNRConOctober5,1988,providesanupdatedstatusreportdetailingourcompliancewithRegulatoryGuide1.97,Revision3.Aspreviouslymentioned,tworeactorcoolantsystemwiderangehotlegtemperaturesprovideinputstoRVLIS.SincealleightofourRTDsarecurrentlypoweredbyasinglediesel-backedbus,wedo  
Int:roduction Thepurposeofthisletteristorequestachangeinourapprovedfireprotection programregarding reactorcoolantsystemwideranget:emperature indication.
~I'ihkl Dr.T.E.Murley-3-AEP:NRC:0692BQnotpresentlycomplywiththeredundancycriteriasetforthinRegulatoryGuide1.97,Revision3forCategory1variables.RemovalofthewiderangehotlegandcoldlegtemperatureindicationsoftwoofthefourcoolantloopsfromthelocalshutdownindicationpanelswillallowustoseparatethesefourRTDsintotwoindependentgroups.EachgroupwillcontaintheRTDsusedformonitoringthewiderangetemperatureofoneloopandwillbepoweredbyapowersupplythatisindependentoftheremaininggroup.Widerangehotlegandcoldlegtemperatureindicationsforreactorcoolantsystemloops2and4willremainavailableatthelocalshutdownindicationpanels.Thepowersupply-forthetemperatureindicationsofthesetwoloopswillremaininthepresentconfiguration.Theresultofthisproposedchangeisareduction,fromtwotoone,inthenumberofreactorcoolantsystemloopsthatcanprovidewiderangetemperatureindicationintheeventofcertainspecificfires.Inotherwords,theavailabilityofwiderangehotlegandcoldlegtemperatureindicationsisensuredforeitherloop2orloop4intheeventofanysinglefire.Theseavailableindicationswillcorrespondtooneofthetwosteamgeneratorstobeusedfornaturalcirculationcooldown.JustificationforProosedChaneWedonotconsidertheproposedchangeinourapprovedfireprotectionprogramasonehavingasignificantimpactonour10CFR50AppendixRcomplianceorplantsafety.Referringtotheloopwithavailabletemperatureindicationasthe"referenceleg"andtheremainingloopasthe"blindleg,"thefollowingproceduralstepswillconfirmnaturalcirculationcooldown:1)Thesubcoolingmarginofthereactorcoolantsystemwouldbemaintainedatnotlessthan50F.Thehotlegtemperatureoftheblindsteamgeneratorwillbeessentiallyequaltothehotlegtemperatureofthereferencesteamgeneratorduetomixingofinletflowsinthelowerplenum,throughthecore,andintheupperplenum.2)Increaseordecreasetheauxiliaryfeedwaterflowtothereferenceandblindsteamgeneratorsasnecessarytoestablishandmaintainlevelbetween50and55%onthewiderange.Eithersteamgeneratoriscapableofremovingdecayheatbynaturalcirculationifitswiderangelevelisbetween10and100')Openthepoweroperatedreliefvalvesonbothsteamgeneratorsasdirectedusingthemanualloadervalvesto
Thisletterrevisesourapplication foramendment totheTechnical Specifications (T/Ss)submitted inAEP:NRC:0692BJ datedJune16,198&.Thevalidityofoursignificant hazardsanalysissubmitted inAEP:NRC:0692BJ isunaffected andconsequently anewsignificant hazardsanalysishasnotbeenincludedinthisletter.Attachment 1t:othisletterprovidestheproposedrevisedT/Spagesthatareintendedtoreplacethecorresponding pagessubmitted inAEP:NRC:0692BJ.
Thisrequestisalsosubmitted inaccordance withtheguidelines inSectionFonpage4ofGenericLetter86-10,"Implementation ofFireProtection Requirements."
Thisgenericletterstates:"Ifthefireprotection programcommitted tobythelicenseeisrequiredbyaspecificlicensecondition orisnotpartoftheFSARforthefacility, t:heprovisions of10CFR50.59maynotbeappliedtomakechangeswithoutpriorNRCapproval.
Thuslicensees mayberequiredtosubmitamendment requestsevenforrelatively minorchangestothefireprotection program."
Section4of"SafeShutdownCapability Assessment, ProposedModifications, andEvaluations
-Revision1"fortheDonaldC.CookNuclearPlant,submitted byAEP:NRC:0692AZ datedMarch20,1987,identifies reactorcoolantsystemwiderangehotlegandcoldlegtemperature indications assafeshutdowncomponents.
Theseindications areincludedassafeshutdowncomponents becausethedifference betweenthehotlegandcoldlegwiderangetemperatures providesadirectindication oftheexistence ofa890i3i0204 890123PDR,AOOCK05000315PPDC P~V7I'I'hIk~g~r Dr.T.E.Murley-2-AEP:NRC:0692BQ naturalcirculation condition.
Furthermore, reactorcoolantsystempressureismaintained bymonitoxing reactorcoolantsystempressureandhotlegtemperature instrumentation and,ifavailable, usingmanualcontrolofthepressurizer heaters(notrequiredforsafeshutdown) toensurethatanappropriate subcooling marginisachieved.
Widerangehotlegandcoldlegtemperature detection isprovidedbyRTDslocatedineachofthehotandcoldlegsforatotalofeightRTDs.SignalsfromtheseRTDsarerecordedinthecontrolroomanddisplayed onlocalshutdownindication (LSI)panels.Widerangehotlegandcoldlegtemperature indications forreactorcoolantsystemloops1and4areavailable atLSI-5andtheseindications forreactorcoolantsystemloops2and3areavailable atLSI-6.Thehotandcoldlegtemperature indications ofallfourcoolantloopsareavailable atLSI-4.Thesaturation meteralsotakesinputsfromtheseRTDs.Thehotlegtemperatures fromloops1and3areinputtedtothereactorvessellevelindication system(RVLIS)aswell.Thepresentpowersupplyconfiguration forthereactorcoolantsystemwiderangehotlegandcoldlegtemperatuxe indication isbasedona10CFR50AppendixRmodification thatinvolvesproviding powerfromasinglediesel-backed bus.Aswitchable alternate powersupplyfromthematchingoppositeunitbusisprovidedforcertainfirescenarios.
ThispresentAppendixRdesignensurestheabilitytomonitorthewiderangehotlegandcoldlegtemperature ofatleast.twoofthefourreactorcoolantsystemloopsintheeventofanysinglefire.Sections4and5of"SafeShutdownCapability Assessment, ProposedModifications, andEvaluations
-Revision1,"describes reactorcoolantsystemtemperature monitoring instrumentation aspresented above.Descri.tionofProosedChaneWeproposetoremovethewiderangehotlegandcoldlegtemperature indications ofreactorcoolantsystemloops1and3fromthelocalshutdownindication panels.Widerangereactorcoolantsystemtemperature monitoring fallsunderthescopeofRegulatory Guide1.97,Revision3.Thereasonforrequesting thisproposedchangeistomeettheCategory1redundancy criteriaforthecoolantinventory variable(RVLIS),identified asItemNo.B-9onpage26ofAEP:NRC:0773AB.
Thisletter,submitted totheNRConOctober5,1988,providesanupdatedstatusreportdetailing ourcompliance withRegulatory Guide1.97,Revision3.Aspreviously mentioned, tworeactorcoolantsystemwiderangehotlegtemperatures provideinputstoRVLIS.SincealleightofourRTDsarecurrently poweredbyasinglediesel-backed bus,wedo  
~I'ihkl Dr.T.E.Murley-3-AEP:NRC:0692BQ notpresently complywiththeredundancy criteriasetforthinRegulatory Guide1.97,Revision3forCategory1variables.
Removalofthewiderangehotlegandcoldlegtemperature indications oftwoofthefourcoolantloopsfromthelocalshutdownindication panelswillallowustoseparatethesefourRTDsintotwoindependent groups.EachgroupwillcontaintheRTDsusedformonitoring thewiderangetemperature ofoneloopandwillbepoweredbyapowersupplythatisindependent oftheremaining group.Widerangehotlegandcoldlegtemperature indications forreactorcoolantsystemloops2and4willremainavailable atthelocalshutdownindication panels.Thepowersupply-forthetemperature indications ofthesetwoloopswillremaininthepresentconfiguration.
Theresultofthisproposedchangeisareduction, fromtwotoone,inthenumberofreactorcoolantsystemloopsthatcanprovidewiderangetemperature indication intheeventofcertainspecificfires.Inotherwords,theavailability ofwiderangehotlegandcoldlegtemperature indications isensuredforeitherloop2orloop4intheeventofanysinglefire.Theseavailable indications willcorrespond tooneofthetwosteamgenerators tobeusedfornaturalcirculation cooldown.
Justification forProosedChaneWedonotconsidertheproposedchangeinourapprovedfireprotection programasonehavingasignificant impactonour10CFR50AppendixRcompliance orplantsafety.Referring totheloopwithavailable temperature indication asthe"reference leg"andtheremaining loopasthe"blindleg,"thefollowing procedural stepswillconfirmnaturalcirculation cooldown:
1)Thesubcooling marginofthereactorcoolantsystemwouldbemaintained atnotlessthan50F.Thehotlegtemperature oftheblindsteamgenerator willbeessentially equaltothehotlegtemperature ofthereference steamgenerator duetomixingofinletflowsinthelowerplenum,throughthecore,andintheupperplenum.2)Increaseordecreasetheauxiliary feedwater flowtothereference andblindsteamgenerators asnecessary toestablish andmaintainlevelbetween50and55%onthewiderange.Eithersteamgenerator iscapableofremovingdecayheatbynaturalcirculation ifitswiderangelevelisbetween10and100')Openthepoweroperatedreliefvalvesonbothsteamgenerators asdirectedusingthemanualloadervalvesto


Dr.T.E.Murley-4-AEP:NRC:0692BQestablishcooldown.Theblindsteamgeneratorlevelandpoweroperated,reliefvalvewouldbecontrolledinamannersimilartothatofthereferencesteamgenerator.Items1and2abovearealreadycontainedinthepresentprocedureforemergencyremoteshutdown(AppendixRprocedure).Item3willbeaddedtotheprocedureasaresultofthedesignchangeprocess.Theaboveproceduralsteps,includingtheprocedurerevisionsthatwillresultfromtheproposeddesignchange,willcontinuetoensureourcapabilityforsafeshutdownofthereactorintheeventofanyfire.Therefore,thisproposaldoesnotadverselyaffectthecontinuedsafeoperationoftheDonaldC.CookNuclearPlant.ImactonReulatorGuide1.97Revision3ComletionScheduleItemNos.B-4,B-5,andB-9ofourletterprovidingupdatedstatusofourcompliancewithRegulatoryGuide1.97,Revision3(AEP:NRC:0773ABdatedOctober5,1988)arescheduledtobecompletedforthe1989outage-Unit1,andthe1990refuelingoutage-Unit2.Sincetheproposeddesignforupgradingtheseitemshasanimpactonourapprovedfireprotectionprogram,wecannotmoveforwardwiththeinstallationoftheseupgradesuntilwereceiveapprovalforamendingourapprovedfireprotectionprogram.Weare,however,proceedingwithengineeringanddesigninanticipationofafavorableresponsetothisrequest.Pursuantto10CFR170.12(c),wehaveenclosedanapplicationfeeof$150.00fortheproposedamendment.ThisdocumenthasbeenpreparedfollowingCorporateprocedureswhichincorporateareasonablesetofcontrolstoensureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Sincerely,M.P.AlexchVicePresidentMPA/eh Dr.T.E.Murley-5-AEP:NRC:0692BQcc:D.H.Williams,Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffG.BruchmannA.B.Davis-RegionIIINRCResidentInspector-Bridgman Dr.T.E.Murley-6-AEP:NRC:0692'c:S.J.Brewer/B.D.McLeanT.0.Argenta/R.F.Kroeger-w/oP.A.Barrett-w/oJ.G.Feinstein-w/oM.L.Horvath-Bridgman-w/oJ.F.Kurgan-w/oJ.J.MarkowskyJ.B.Shinnock-w/oS.H.Steinhart/S.P.HodgeJ.Stang,NRC-Washington,D.C.DC-N-6015.1AEP:NRC:0692'}}
Dr.T.E.Murley-4-AEP:NRC:0692BQ establish cooldown.
Theblindsteamgenerator levelandpoweroperated, reliefvalvewouldbecontrolled inamannersimilartothatofthereference steamgenerator.
Items1and2abovearealreadycontained inthepresentprocedure foremergency remoteshutdown(Appendix Rprocedure).
Item3willbeaddedtotheprocedure asaresultofthedesignchangeprocess.Theaboveprocedural steps,including theprocedure revisions thatwillresultfromtheproposeddesignchange,willcontinuetoensureourcapability forsafeshutdownofthereactorintheeventofanyfire.Therefore, thisproposaldoesnotadversely affectthecontinued safeoperation oftheDonaldC.CookNuclearPlant.ImactonReulatorGuide1.97Revision3ComletionScheduleItemNos.B-4,B-5,andB-9ofourletterproviding updatedstatusofourcompliance withRegulatory Guide1.97,Revision3(AEP:NRC:0773AB datedOctober5,1988)arescheduled tobecompleted forthe1989outage-Unit1,andthe1990refueling outage-Unit2.Sincetheproposeddesignforupgrading theseitemshasanimpactonourapprovedfireprotection program,wecannotmoveforwardwiththeinstallation oftheseupgradesuntilwereceiveapprovalforamendingourapprovedfireprotection program.Weare,however,proceeding withengineering anddesigninanticipation ofafavorable responsetothisrequest.Pursuantto10CFR170.12(c),
wehaveenclosedanapplication feeof$150.00fortheproposedamendment.
Thisdocumenthasbeenpreparedfollowing Corporate procedures whichincorporate areasonable setofcontrolstoensureitsaccuracyandcompleteness priortosignature bytheundersigned.
Sincerely, M.P.AlexchVicePresident MPA/eh Dr.T.E.Murley-5-AEP:NRC:0692BQ cc:D.H.Williams, Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffG.Bruchmann A.B.Davis-RegionIIINRCResidentInspector
-Bridgman Dr.T.E.Murley-6-AEP:NRC:0692'c:
S.J.Brewer/B.
D.McLeanT.0.Argenta/R.
F.Kroeger-w/oP.A.Barrett-w/oJ.G.Feinstein
-w/oM.L.Horvath-Bridgman-w/oJ.F.Kurgan-w/oJ.J.Markowsky J.B.Shinnock-w/oS.H.Steinhart/S.
P.HodgeJ.Stang,NRC-Washington, D.C.DC-N-6015.1 AEP:NRC:0692'}}

Revision as of 08:57, 29 June 2018

Application for Amends to Licenses DPR-58 & DPR-74,revising Fire Protection Program Re RCS wide-range Temp Indication. Fee Paid
ML17326B513
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 01/23/1989
From: ALEXICH M P
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: MURLEY T E
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML17326B514 List:
References
AEP:NRC:0692BQ, AEP:NRC:692BQ, GL-86-10, NUDOCS 8901310204
Download: ML17326B513 (11)
v • d • e


Text

~A!"CEIZRATED 3]STRIBUTION DEMONSTRTIONSYPI'EMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8901310204 DOC.DATE:

89/01/23NOTARIZED:

NODOCKETFACIL:50-315 Donald'C.

CookNuclearPowerPlant,Unit1,Indiana&05000315:"

50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316'UTH.

NAME.AUTHORAFFILIATION ALEXICH,M.P.

IndianaMichiganPowerCo.(formerly Indiana&MichiganEle'fRECIP.NAME RECIPIENT AFFILIATION RDocumentControlBranch(Document ControlDesk)J

SUBJECT:

Application foramendstoLicensesDPR-58&DPR-74,revising fareprotection programreRCSwiderangetempindication.

DISTRIBUTION CODE:A006DCOPIESRECEIVED:LTR lENCLISIZE:6++TITLE:OR/Licensing Submittal:

FireProtection SNOTES:RECIPIENT IDCODE/NAME PD3-1LASTANG,JCOPIESLTTRENCL1011RECIPIENT IDCODE/NAME PD3-1PDCOPIESLTTRENCL55iiDINTERNAL:

ARM/DAF/LFMB NRR/DEST/ADS 7ENRR/ECEBOGC/HDS1EXTERNAL:

LPDRNSIC101122101'11NRRWERMEIL,J NRR/DEST/PSB 8DNUDOCS-ABSTRACT IKENRCPDR10,.11111111>c4(0PNVZE'IOALL"RIDS"RECIPZEPIS'IZASE HELPUSIOREDUCEWASTE)CORI'ACZSHEDOCXJMENT (XKEKLDESK,RQCMP1-37(EZT.20079)KOEZZHXNMZE YOURKQhEFMMDISTRIBUTION LISTSPORDOCtlMERZS YOUDONiTNEEDfSDDSTOTALNUMBEROFCOPIESREQUIRED:

LTTR19ENCL15

indianaMichiganPowerCompanyP.O.Box16631Columbus, OH43216AEP'NRC:0692BQ DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74REVISEDAPPENDIXRREMOTESHUTDOWNTECHNICAL SPECIFICATIONS FORRCSWIDERANGETEMPERATURE INDICATION U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyJanuary23,1989

DearDr.Murley:

Int:roduction Thepurposeofthisletteristorequestachangeinourapprovedfireprotection programregarding reactorcoolantsystemwideranget:emperature indication.

Thisletterrevisesourapplication foramendment totheTechnical Specifications (T/Ss)submitted inAEP:NRC:0692BJ datedJune16,198&.Thevalidityofoursignificant hazardsanalysissubmitted inAEP:NRC:0692BJ isunaffected andconsequently anewsignificant hazardsanalysishasnotbeenincludedinthisletter.Attachment 1t:othisletterprovidestheproposedrevisedT/Spagesthatareintendedtoreplacethecorresponding pagessubmitted inAEP:NRC:0692BJ.

Thisrequestisalsosubmitted inaccordance withtheguidelines inSectionFonpage4ofGenericLetter86-10,"Implementation ofFireProtection Requirements."

Thisgenericletterstates:"Ifthefireprotection programcommitted tobythelicenseeisrequiredbyaspecificlicensecondition orisnotpartoftheFSARforthefacility, t:heprovisions of10CFR50.59maynotbeappliedtomakechangeswithoutpriorNRCapproval.

Thuslicensees mayberequiredtosubmitamendment requestsevenforrelatively minorchangestothefireprotection program."

Section4of"SafeShutdownCapability Assessment, ProposedModifications, andEvaluations

-Revision1"fortheDonaldC.CookNuclearPlant,submitted byAEP:NRC:0692AZ datedMarch20,1987,identifies reactorcoolantsystemwiderangehotlegandcoldlegtemperature indications assafeshutdowncomponents.

Theseindications areincludedassafeshutdowncomponents becausethedifference betweenthehotlegandcoldlegwiderangetemperatures providesadirectindication oftheexistence ofa890i3i0204 890123PDR,AOOCK05000315PPDC P~V7I'I'hIk~g~r Dr.T.E.Murley-2-AEP:NRC:0692BQ naturalcirculation condition.

Furthermore, reactorcoolantsystempressureismaintained bymonitoxing reactorcoolantsystempressureandhotlegtemperature instrumentation and,ifavailable, usingmanualcontrolofthepressurizer heaters(notrequiredforsafeshutdown) toensurethatanappropriate subcooling marginisachieved.

Widerangehotlegandcoldlegtemperature detection isprovidedbyRTDslocatedineachofthehotandcoldlegsforatotalofeightRTDs.SignalsfromtheseRTDsarerecordedinthecontrolroomanddisplayed onlocalshutdownindication (LSI)panels.Widerangehotlegandcoldlegtemperature indications forreactorcoolantsystemloops1and4areavailable atLSI-5andtheseindications forreactorcoolantsystemloops2and3areavailable atLSI-6.Thehotandcoldlegtemperature indications ofallfourcoolantloopsareavailable atLSI-4.Thesaturation meteralsotakesinputsfromtheseRTDs.Thehotlegtemperatures fromloops1and3areinputtedtothereactorvessellevelindication system(RVLIS)aswell.Thepresentpowersupplyconfiguration forthereactorcoolantsystemwiderangehotlegandcoldlegtemperatuxe indication isbasedona10CFR50AppendixRmodification thatinvolvesproviding powerfromasinglediesel-backed bus.Aswitchable alternate powersupplyfromthematchingoppositeunitbusisprovidedforcertainfirescenarios.

ThispresentAppendixRdesignensurestheabilitytomonitorthewiderangehotlegandcoldlegtemperature ofatleast.twoofthefourreactorcoolantsystemloopsintheeventofanysinglefire.Sections4and5of"SafeShutdownCapability Assessment, ProposedModifications, andEvaluations

-Revision1,"describes reactorcoolantsystemtemperature monitoring instrumentation aspresented above.Descri.tionofProosedChaneWeproposetoremovethewiderangehotlegandcoldlegtemperature indications ofreactorcoolantsystemloops1and3fromthelocalshutdownindication panels.Widerangereactorcoolantsystemtemperature monitoring fallsunderthescopeofRegulatory Guide1.97,Revision3.Thereasonforrequesting thisproposedchangeistomeettheCategory1redundancy criteriaforthecoolantinventory variable(RVLIS),identified asItemNo.B-9onpage26ofAEP:NRC:0773AB.

Thisletter,submitted totheNRConOctober5,1988,providesanupdatedstatusreportdetailing ourcompliance withRegulatory Guide1.97,Revision3.Aspreviously mentioned, tworeactorcoolantsystemwiderangehotlegtemperatures provideinputstoRVLIS.SincealleightofourRTDsarecurrently poweredbyasinglediesel-backed bus,wedo

~I'ihkl Dr.T.E.Murley-3-AEP:NRC:0692BQ notpresently complywiththeredundancy criteriasetforthinRegulatory Guide1.97,Revision3forCategory1variables.

Removalofthewiderangehotlegandcoldlegtemperature indications oftwoofthefourcoolantloopsfromthelocalshutdownindication panelswillallowustoseparatethesefourRTDsintotwoindependent groups.EachgroupwillcontaintheRTDsusedformonitoring thewiderangetemperature ofoneloopandwillbepoweredbyapowersupplythatisindependent oftheremaining group.Widerangehotlegandcoldlegtemperature indications forreactorcoolantsystemloops2and4willremainavailable atthelocalshutdownindication panels.Thepowersupply-forthetemperature indications ofthesetwoloopswillremaininthepresentconfiguration.

Theresultofthisproposedchangeisareduction, fromtwotoone,inthenumberofreactorcoolantsystemloopsthatcanprovidewiderangetemperature indication intheeventofcertainspecificfires.Inotherwords,theavailability ofwiderangehotlegandcoldlegtemperature indications isensuredforeitherloop2orloop4intheeventofanysinglefire.Theseavailable indications willcorrespond tooneofthetwosteamgenerators tobeusedfornaturalcirculation cooldown.

Justification forProosedChaneWedonotconsidertheproposedchangeinourapprovedfireprotection programasonehavingasignificant impactonour10CFR50AppendixRcompliance orplantsafety.Referring totheloopwithavailable temperature indication asthe"reference leg"andtheremaining loopasthe"blindleg,"thefollowing procedural stepswillconfirmnaturalcirculation cooldown:

1)Thesubcooling marginofthereactorcoolantsystemwouldbemaintained atnotlessthan50F.Thehotlegtemperature oftheblindsteamgenerator willbeessentially equaltothehotlegtemperature ofthereference steamgenerator duetomixingofinletflowsinthelowerplenum,throughthecore,andintheupperplenum.2)Increaseordecreasetheauxiliary feedwater flowtothereference andblindsteamgenerators asnecessary toestablish andmaintainlevelbetween50and55%onthewiderange.Eithersteamgenerator iscapableofremovingdecayheatbynaturalcirculation ifitswiderangelevelisbetween10and100')Openthepoweroperatedreliefvalvesonbothsteamgenerators asdirectedusingthemanualloadervalvesto

Dr.T.E.Murley-4-AEP:NRC:0692BQ establish cooldown.

Theblindsteamgenerator levelandpoweroperated, reliefvalvewouldbecontrolled inamannersimilartothatofthereference steamgenerator.

Items1and2abovearealreadycontained inthepresentprocedure foremergency remoteshutdown(Appendix Rprocedure).

Item3willbeaddedtotheprocedure asaresultofthedesignchangeprocess.Theaboveprocedural steps,including theprocedure revisions thatwillresultfromtheproposeddesignchange,willcontinuetoensureourcapability forsafeshutdownofthereactorintheeventofanyfire.Therefore, thisproposaldoesnotadversely affectthecontinued safeoperation oftheDonaldC.CookNuclearPlant.ImactonReulatorGuide1.97Revision3ComletionScheduleItemNos.B-4,B-5,andB-9ofourletterproviding updatedstatusofourcompliance withRegulatory Guide1.97,Revision3(AEP:NRC:0773AB datedOctober5,1988)arescheduled tobecompleted forthe1989outage-Unit1,andthe1990refueling outage-Unit2.Sincetheproposeddesignforupgrading theseitemshasanimpactonourapprovedfireprotection program,wecannotmoveforwardwiththeinstallation oftheseupgradesuntilwereceiveapprovalforamendingourapprovedfireprotection program.Weare,however,proceeding withengineering anddesigninanticipation ofafavorable responsetothisrequest.Pursuantto10CFR170.12(c),

wehaveenclosedanapplication feeof$150.00fortheproposedamendment.

Thisdocumenthasbeenpreparedfollowing Corporate procedures whichincorporate areasonable setofcontrolstoensureitsaccuracyandcompleteness priortosignature bytheundersigned.

Sincerely, M.P.AlexchVicePresident MPA/eh Dr.T.E.Murley-5-AEP:NRC:0692BQ cc:D.H.Williams, Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffG.Bruchmann A.B.Davis-RegionIIINRCResidentInspector

-Bridgman Dr.T.E.Murley-6-AEP:NRC:0692'c:

S.J.Brewer/B.

D.McLeanT.0.Argenta/R.

F.Kroeger-w/oP.A.Barrett-w/oJ.G.Feinstein

-w/oM.L.Horvath-Bridgman-w/oJ.F.Kurgan-w/oJ.J.Markowsky J.B.Shinnock-w/oS.H.Steinhart/S.

P.HodgeJ.Stang,NRC-Washington, D.C.DC-N-6015.1 AEP:NRC:0692'

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