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{{#Wiki_filter: | {{#Wiki_filter:Attachment 2toAEP:NRC:1193 ExistingTechnical Specifications forDonaldC.CookNuclearPlantUnits1and2MarkedtoReflectProposedChanges9311190298 931115PDRADOCK"05000315'-PPDR I~~~~1~~~~~~~~~~~~~~~~~~~~~all~~~~~~~~~~~~'I~~~'~~~~'~I'I~~~~~~I~~~~I~~~~'I~~~'~'~~~~~~~~~'~'~~~~~~II~~~~,,~,~~~I~~~'~~~~~~\~ | ||
CONTAINMENT SYSTEMSSURVEILLANCE REUIREMEHTS Continued shallbeconstituted ofonebasketeachfromRadialRows1,2,4,6,8and9(orfromthesamerowofanadjacentbayifabasketfromadesignated rowcannot,beobtainedforweighing) withineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additional basketsfromthesamebayshallbe'eighed. | |||
Theminimumaverageweightoficefromthe20additional basketsandthediscrepant basketshallnotbelessthan1220pounds/basket ata958levelofconfidence. | |||
Theicecondenser shallalsobesubdivided into3groupsofbaskets,asfollows:Group1-bays1through8,Group2-bays9through16,andGroup3-bays17through24.TheminimumaverageiceweightofthesamplebasketsfromRadialRows1,2,4,6,8and9ineachgroupshallnotbelessthan1220pounds/basket ata954levelofconfidence. | |||
Theminimumtotalicecondenser iceweightata95%levelofconfidence shallbecalculated usingallicebasketweightsdetermined duringthisweighingprogramandshallnotbelessthan2,371;450 pounds.3.Verifying, byavisualinspection ofatleasttwoflowpassagespericecondenser bay,thattheaccumulation offrostoriceonthetopdeckfloorgrating,ontheintermediate deckandonflowpassagesbetweenicebasketsandpast.latticeframesisrestricted toanominalthickness of3/8inches.Ifoneflowpassageperbayisfoundtohaveanaccumulation offrostoricegreaterthanthisthickness, arepresentative sampleof20additional flowpassagesfromthesamebayshallbevisuallyinspected. | |||
Iftheseadditional flowpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency asuniqueandacceptable. | |||
Morethanonerestricted flowpassageperbayisevidenceofabnormaldegradation oftheicecondenser. | |||
C.Atleastonceper18monthsbyverifying, byavisualinspection, eachicecondenser bay,thattheaccumulation offrostoriceonthelowerinletplenumsupportstructures andturningvanesisrestricted toanominalthickness of3/8inches.Anaccumulation offrostandicegreaterthanthisthickness isevidenceofabnormaldegradation oftheicecondenser. | |||
d.Atbreastonceper40monthsbyliftingandvisuallyinspecting | |||
.theaccessible portionsofatleasttwoicebasketsfromeach1/3oftheicecondenser andverifying thattheicebasketsarefreeofdetrimental structural wear,cracks,corrosion orotherdamage.Theicebasketsshallberaisedatleast12feetforthisinspection. | |||
COOKNUCLEARPLANT-UNIT13/46-27AMENDMENT NO.l08,f21,138,144 | |||
~iI~~~~~~~~~~~~~~1~~~~~~~~~~I~~~~~~~I~~I~~~~~~~~~~~~~~~~~~~~~~~~I~~~~~~~~~~I~I~~~~~~%0~~I E | ~iI~~~~~~~~~~~~~~1~~~~~~~~~~I~~~~~~~I~~I~~~~~~~~~~~~~~~~~~~~~~~~I~~~~~~~~~~I~I~~~~~~%0~~I E | ||
COm~~STS~SUIVKZILAN&M~ | COm~~STS~SUIVKZILAN&M~BAHTSContinued shal1beconstituted ofonebasketeachfrom~diaLRNts1~2~4y6,8and9(orfromthesameroeofanad5acentbayifabasketfxomadesignated xovcannotbeobtainedfox"veighiag) vithin~achbay.Zfaaybasketisfoundtocontainlessthan1220poundsofice.axepresentative sampleof20additioaal baskets'romthesamebayshallb>>veighed.Theminimumaverageveightoficefromthe20additional basketsandthediscrepant basketshallaotbelessthan1220pounds/basket ata95%levelofconfidence. | ||
Theicecondenser shallalsobesubdivided into3grcnzpaofbaskets,asfollovs:Croup1-bays1through4,Croup2-bays9through16,andCroup3-bays17through24.Theminimumaverageiceveightofth>>samplebasketsfrcnaRadialhnrs1,2,4,6,band9ineachgxoupshalLaotbelessthan1220pounds/basket at,a95%levelofconfidence. | |||
TheminimumtotaLicecondensez iceveightata95%levelofconfidence shallbecalculated usingallicebasketreightsdetermined duringthisveighingpzogramandshallnotbelessthan2,371,450 pounds.3.Verifying, byavisualinspection oiatleastxvoflovpassagespericecondenser bay,thattheaccelationoffzostoxiceonthetopdeckfloorgrating,ontheintermediate deckandoaflovpassagesbetveenicebasketsaadpastlatticeframesisrestricted toanominalthickness of3/8inches.Ztoneflowpassagepexbayi.sfoundtohaveanaccumulation offrostoxicegzeaterthanthisthickness, arepresentative sampleof20additional flovpassagesfromthesamebayshallbevisuaLLyinspected. | |||
Iftheseadditional flovpassagesax'efoundacceptable, thesurveillance pzogrammaypx'oceedconsidering thesingledeficiency asuniqueandacceptable. | |||
Morethaaonerestx'icted flovpassagepezbayisevidenceofabnormaldegradation oftheicecondensex. | |||
C~'htleastonceperLdmonthsbyverifying, byavisualinspectioa, of<<achicecondenser bay,thattheaccumulation offzostoriceontheloverplenumsupportstructuxes andtuzaingvanceisrestricted toanominalthickness of3/8inches.Anaccumulation offrostox'cegreaterthanthisthickness isevidenceofabnormaldegradatioa oftheicecondenser. | |||
d.Atleastoncepez40monthsbyliftingandvt.sually inspecting theaccessible portionsofatleasttvoicebasketsfromeach1/3oftheicecondenser sndverifying thattheicebasketsazefx'eeofdetrimental structuzal veer,cracks,corrosion orotherdamage.Theicebasketsshallberai.sedatleast12featforthisinspection. | |||
COOKNUCLEARPLANT-UNIT23/46-36AMENDMENT NO)P,125 CONTAIQlENTSYSTEMSBASES3/4.6.4COMBUSTIBLE GASCONTROLTheOPERABILITY oftheequipment andsystemsrequiredforthedetec-tionandcontrolofhydrogengasensuresthatthisequipment will'beavailable tomaintainthehydrogenconcentration withincontainment belowitsflammable limitduringpost-LOCA conditions. | |||
Eitherrccombiner unitiscapableofcontrolling theexpectedhydrogengeneration associated with1)zirconium-water reactions, 2)radiolytic decomposition ofwaterand3)corrosion ofmetalswithincontainment. | |||
Thesehydrogencontrolsystemsar''ons7st>ht~it'h-theŽrccommendrtions-of ReguUrtory..Guile..l;7, "ControlofCombustible GasConcentrations inContainment Following alOCA",March1971.3/C.6.5ICECONDENSER Therequirements associated witheachofthecomponents oftheicecondenser ensurethat.thcoverallsystemwillbeavailable toprovidesufficient pressuresuppression capability tolimitthecontainment peakpressuretransient tolessthan12psigduringLOCAconditions. | |||
B3/46-.4amendment No,13/4.6.5.1ICEBEDTheOPERABILITY ofthe,icebedensuresthattherequirediceinven-torywill1)bedistributed evenlythroughth~containment bays,2)con-tainsufficient borontoprecludedilutionofthecontainment sumpfollow-ingtheLOCAand3)containsuf,icient heatremovalcapability tocondensethereactorsystemvolumereleasedduringaLOCA.Theseconditions arc'.consistent withtheassumptions usedintheaccidentanalyses. | |||
Theminimum+eightfigureof1220poundsoficeperbasketcontainsa10>>conservative allowance foricelossthroughsublimation whichisafactorof10higherthanassumedfottheicecondenser design.Intheeventthatobservedsublimation. | |||
rates'areequaltoorlowerthande'sign'redictions afterthreeyears'foperation, theminimumicebasketsweight.maybeadjusteddownward. | |||
Inaddition', | |||
thenumberoficebaskets.requiredtobeweightedeachgI8months may'ereducedafter'3.yearsof'peraionifsuchareductionissupported byobservedsublimation | |||
'data.'4.6.5.2ICEBEDTEHPERATURE HONITORING SYSTEHTheOPERABILITY-of theicebedtemperature monitoring systemensuresthatthecapability fsavailable for.monitoring theicetemperature. | |||
In''theeventthemonitoring systemisinoperablc, theACTIONrequirements provideassurance thattheicebedheatremovalcapacitywill.beretaineiwithinthespecified timelimits.D.C.COOK-UNIT2 k,'IE Attachment 3toAEP:NRC:1193 ProposedTechnical Specifications forDonaldC.CookNuclearPlantUnits1and2 | |||
~~~~~~'~~~~~~~~'~~~~~~~~~*~~~~~~'I~~~~~'~~'~.~~I'~~~~~~I~~~~~~I~~~~~~~'~4~~'II~~~~~~~~~~~~~I~~~~~~~~~~~'I~~~I~~~~~ | ~~~~~~'~~~~~~~~'~~~~~~~~~*~~~~~~'I~~~~~'~~'~.~~I'~~~~~~I~~~~~~I~~~~~~~'~4~~'II~~~~~~~~~~~~~I~~~~~~~~~~~'I~~~I~~~~~ | ||
CONTAINMENT SYSTEMSSURVEILLANCE REUIMDKNTSContinued shallbeconstituted ofonebasketeachfromRadialRows1,2,4,6,8and9(orfromthesamerowofanadjacentbayifabasketfromadesignated rowcannotbeobtainedforweighing) withineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additSonal basketsfromthesamebayshallbe'eighed. | |||
Theminimumaverageweightoficefromthe20additional basketsandthediscrepant basketshallnotbelessthan1220pounds/basket ata95$levelofconfidence. | |||
Theicecondenser shallalsobesubdivided into3groupsofbaskets,asfollows:Group1-bays1through8,Group2-bays9through16,andGroup3-bays17through24.ThemSnimumaverageiceweightofthesamplebasketsfromRadialRows1,2,4,6,8and9ineachgroupshallnotbelessthan1220pounds/basket ata954levelofconfidence. | |||
ThemininmntotalScecondenser iceweightata95%levelofconfidence shallbecalculated usingallicebasketweS.ghtsdetermined duringthisweighingprogramandshallnotbelessthan2,371',450 pounds.3.Verifying, byavisualinspectS. | |||
onofatleasttwoflowpassagesperScecondenser bay,thattheaccumulation offrostoriceonthetopdeckfloorgrating,ontheintermediate deckandonflowpassagesbetweenicebasketsandpastlatticeframesisrestricted toanominalthickness of3/8inches.Ifoneflowpassageperbayisfoundtohaveanaccumulation offrostoricegreaterthanthisthickness, arepresentative sampleof20addi.tional flowpassagesfromthesamebayshallbevisuallyinspected. | |||
Iftheseadditional flowpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency asuniqueandacceptable. | |||
Morethanonerestricted flowpassageperbayisevidenceofabnormaldegradation oftheicecondenser. | |||
c~Atleastonceper18monthsbyverifying, byavisualinspection, eachicecondenser bay,thattheaccumulation offrostoriceonthelowerinletplenumsupportstructures andturningvanesisrestricted toanominalthickness of3/8inches.Anaccumulation offrostandicegreaterthanthisthickness isevidenceofabnormaldegradation oftheicecondenser. | |||
d.Atbreastonceper40monthsbyliftingandvisuallyinspecting theaccessible portionsofatleasttwoicebasketsfromeach1/3oftheicecondenser andverifying thattheicebasketsarefreeofdetrimental structural wear,cracks,corrosion orotherdamage.Theicebasketsshallberaisedatleast12feetforthisinspection. | |||
COOKNUCLEARPLANT-UNIT13/46-27AMENDMENT NO.108,f21,138i144 | |||
~<I~~~I'~~'I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'~~~~~~I~~~~I'~\~~~~~~~~~~~~~~~~~~~~~.~~'~I~~~~I~~~ | ~<I~~~I'~~'I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'~~~~~~I~~~~I'~\~~~~~~~~~~~~~~~~~~~~~.~~'~I~~~~I~~~ | ||
~ | ~VZZXLANCX REUIEErfEHTS Continued shallbeconstituted ofoaebasketeachfromRadialLoca1,2,4,6,8and9(ortzoathesamerovofanad)aceatbayifabasketfromadesignated rovcannotbeobtainedtorveighing) vithineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additioaal basketsfromthesamebiyshallbeveighed.Theminimumsaverageveightoficetroathe20addi.tional basketsindthediscrepant basketshallnotbelessthan1220pounds/basket ata95%levelofconfidence. | ||
Thei.cecondenser shallalsobesubdivided into3groupsofbaskets,isfollovs:Czoup1-bays1thzough8,Croup2-bays9through16,aad'Croup 3-bays17through24.TheaCaimaaverageiceveightofthesamplebasketsfromkadialkcnrs1,2,4,6,8iad9ineachgroupshallnotbelesschan1220pounds/basket aca95%levelofconfi.dence. | |||
Theminimumtotali.cecondenser icevei.ghc,ata95%levelofconfidence shillbecalculated usingallicebasketreightsdetermined duringthisveighingprogramindshallnotbelessthin2,371,450 pounds.3.Verifying, byavisualinspection oiicleasttvoflovpassagespezi,cecondenser bay,thattheaccelationoffrostoriceonchetopdeckfloorgrating,onthe'ncermediate deckandonflovpassagesbecveenicebasketsindpastlicciceframesisrestricted toanominalthickness of3/8inches.Ifoneflovpassageperbiyisfoundtohaveanaccumulation oftroatoricegzeacerthanthisthi.ckness, irepresentacive sampleof20addi.tioaal tlovpassagesfromthesamebayshallbevisuallyinspected. | |||
Iftheseadditional flovpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency isuniqueandacceptable. | |||
Morethanonerestricted flovpassageperbayisevidenceotabnormaldegradation oftheicecondensez. | |||
C~'Atleastonceper18monthsbyverifying, byavisualinspection, ofeichicecondenser bay,thattheaccumulation oftroscoriceontheloverplenumsupportstructures indturningvinesisrestricted toanominalthickness of3/8inches.Anaccmxlation offrostori.cegreaterthanthisthickness isevidenceofabnormaldegridatioa oftheicecondenser. | |||
d.Atleastonceper40monthsbyliftingindvisuallyinspecting theaccessibLe portionsofatleasttvoi.cebasketsfromeach1/3ottheicecondenser indverifying thattheicebasketsizetreeofdetrimental structural veer,cracks,corrosion orotherdamage.Theicebasketsshallberaisedaclease12feetforthisinspection. | |||
COOKNUCLEARPLANT-UNIT23/46-36AMENDMENT NOPP,125 CONTAItPENT SYSTEMSBASES3/4.6.4COMBUSTIBLE GASCONTROLThcOPERABILITY oftheequipment andsystemsrequiredforthedetec'-'ion andcontrolof.hydrogengasensures'thatthisequipment will.'beavailable tomafntafnthehydrogenconcentration withincontainment belowitsflaim-,ible limitduringpost-LOCA conditions. | |||
Eitherrecombfner unitfscapableofcontrolling theexpectedhydrogengeneration associated with1)zirconium-water reactions, 2)radfolytfc decomposition ofwaterand3)corrosion ofmetalswithincontainment. | |||
Thesehydrogencontrolsystemsare'onsisfMt~fth-the recammendrtfons-of Regubitory | |||
.Gu&c..l;7,. | |||
"ControlofCombustible GasConcentrations fnContainment Following aLOCA",Marchlg71.3/4.6.5ICECONDENSER Therequirements associated witheachofthecomponents oftheicecondenser ensurethat.thcoverallsystemwillbcavailable toprovidesufficient pressuresuppression capability tolimitthccontainment peakpressuretransient to1essthan12psfgduringLOCAconditions. | |||
'/4.6.5.1 ICEBEDB3/46-.4Amendment Na,1TheOPERABILITY ofthc.icebedensyresthattherequiredfceinven-torywill1)bedistributed evenlythroughth~contafnment bays,2)con-tainsufficient borontoprecludedilutionofthecontainment sumpfollow-ingtheLOCAand3)containsufficient heatremovalcapability tocondensethereactorsystemvolume.re1eased duringaLOCA.'Theseconditions are'.consistent withtheassumptions usedintheaccidentanalyses. | |||
Theminimum~eightfigureof1220poundsoficeperbasketcontainsa10>>conservative aliowa'nce forice.lossthroughsublimation whichisafactorof10higherthanassumedforthefceco~denser design.Inthe'ventthatobservedsublimation.rates | |||
'hreequaltoorlowerthandesign,predict/ons afterthreeyearsofoperation, theminimumicebaskets~eightmaybeadjusteddownward. | |||
Inaddition', | |||
thenumberoffcebasketsrequiredtobeweightedeachj.8monthsmay'ereducedafter'3.yearsof'peration ifsuchareduction issupported byobservedsublimatfon'data,' | |||
'034.6.5.2ICEBEDTEMPERATURE MONITORING SYSTEMTheOPERABILITY. | |||
oftheicebedtemperature monitoring systemensuresthatthecapability isavailable for.monitoring thefcetemperature.. | |||
In"theeventthcmonitoring systemisinoperable, theACTIONrequirements provideassurance thatthcicebedheatremovalcapacitywill.beretafneiwithinthespecified timelimits.D.C.COOK-UNIT2 P+5'I'I~cgC}} |
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ML17331B070 | |
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Site: | Cook ![]() |
Issue date: | 11/15/1993 |
From: | INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
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Text
Attachment 2toAEP:NRC:1193 ExistingTechnical Specifications forDonaldC.CookNuclearPlantUnits1and2MarkedtoReflectProposedChanges9311190298 931115PDRADOCK"05000315'-PPDR I~~~~1~~~~~~~~~~~~~~~~~~~~~all~~~~~~~~~~~~'I~~~'~~~~'~I'I~~~~~~I~~~~I~~~~'I~~~'~'~~~~~~~~~'~'~~~~~~II~~~~,,~,~~~I~~~'~~~~~~\~
CONTAINMENT SYSTEMSSURVEILLANCE REUIREMEHTS Continued shallbeconstituted ofonebasketeachfromRadialRows1,2,4,6,8and9(orfromthesamerowofanadjacentbayifabasketfromadesignated rowcannot,beobtainedforweighing) withineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additional basketsfromthesamebayshallbe'eighed.
Theminimumaverageweightoficefromthe20additional basketsandthediscrepant basketshallnotbelessthan1220pounds/basket ata958levelofconfidence.
Theicecondenser shallalsobesubdivided into3groupsofbaskets,asfollows:Group1-bays1through8,Group2-bays9through16,andGroup3-bays17through24.TheminimumaverageiceweightofthesamplebasketsfromRadialRows1,2,4,6,8and9ineachgroupshallnotbelessthan1220pounds/basket ata954levelofconfidence.
Theminimumtotalicecondenser iceweightata95%levelofconfidence shallbecalculated usingallicebasketweightsdetermined duringthisweighingprogramandshallnotbelessthan2,371;450 pounds.3.Verifying, byavisualinspection ofatleasttwoflowpassagespericecondenser bay,thattheaccumulation offrostoriceonthetopdeckfloorgrating,ontheintermediate deckandonflowpassagesbetweenicebasketsandpast.latticeframesisrestricted toanominalthickness of3/8inches.Ifoneflowpassageperbayisfoundtohaveanaccumulation offrostoricegreaterthanthisthickness, arepresentative sampleof20additional flowpassagesfromthesamebayshallbevisuallyinspected.
Iftheseadditional flowpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency asuniqueandacceptable.
Morethanonerestricted flowpassageperbayisevidenceofabnormaldegradation oftheicecondenser.
C.Atleastonceper18monthsbyverifying, byavisualinspection, eachicecondenser bay,thattheaccumulation offrostoriceonthelowerinletplenumsupportstructures andturningvanesisrestricted toanominalthickness of3/8inches.Anaccumulation offrostandicegreaterthanthisthickness isevidenceofabnormaldegradation oftheicecondenser.
d.Atbreastonceper40monthsbyliftingandvisuallyinspecting
.theaccessible portionsofatleasttwoicebasketsfromeach1/3oftheicecondenser andverifying thattheicebasketsarefreeofdetrimental structural wear,cracks,corrosion orotherdamage.Theicebasketsshallberaisedatleast12feetforthisinspection.
COOKNUCLEARPLANT-UNIT13/46-27AMENDMENT NO.l08,f21,138,144
~iI~~~~~~~~~~~~~~1~~~~~~~~~~I~~~~~~~I~~I~~~~~~~~~~~~~~~~~~~~~~~~I~~~~~~~~~~I~I~~~~~~%0~~I E
COm~~STS~SUIVKZILAN&M~BAHTSContinued shal1beconstituted ofonebasketeachfrom~diaLRNts1~2~4y6,8and9(orfromthesameroeofanad5acentbayifabasketfxomadesignated xovcannotbeobtainedfox"veighiag) vithin~achbay.Zfaaybasketisfoundtocontainlessthan1220poundsofice.axepresentative sampleof20additioaal baskets'romthesamebayshallb>>veighed.Theminimumaverageveightoficefromthe20additional basketsandthediscrepant basketshallaotbelessthan1220pounds/basket ata95%levelofconfidence.
Theicecondenser shallalsobesubdivided into3grcnzpaofbaskets,asfollovs:Croup1-bays1through4,Croup2-bays9through16,andCroup3-bays17through24.Theminimumaverageiceveightofth>>samplebasketsfrcnaRadialhnrs1,2,4,6,band9ineachgxoupshalLaotbelessthan1220pounds/basket at,a95%levelofconfidence.
TheminimumtotaLicecondensez iceveightata95%levelofconfidence shallbecalculated usingallicebasketreightsdetermined duringthisveighingpzogramandshallnotbelessthan2,371,450 pounds.3.Verifying, byavisualinspection oiatleastxvoflovpassagespericecondenser bay,thattheaccelationoffzostoxiceonthetopdeckfloorgrating,ontheintermediate deckandoaflovpassagesbetveenicebasketsaadpastlatticeframesisrestricted toanominalthickness of3/8inches.Ztoneflowpassagepexbayi.sfoundtohaveanaccumulation offrostoxicegzeaterthanthisthickness, arepresentative sampleof20additional flovpassagesfromthesamebayshallbevisuaLLyinspected.
Iftheseadditional flovpassagesax'efoundacceptable, thesurveillance pzogrammaypx'oceedconsidering thesingledeficiency asuniqueandacceptable.
Morethaaonerestx'icted flovpassagepezbayisevidenceofabnormaldegradation oftheicecondensex.
C~'htleastonceperLdmonthsbyverifying, byavisualinspectioa, of<<achicecondenser bay,thattheaccumulation offzostoriceontheloverplenumsupportstructuxes andtuzaingvanceisrestricted toanominalthickness of3/8inches.Anaccumulation offrostox'cegreaterthanthisthickness isevidenceofabnormaldegradatioa oftheicecondenser.
d.Atleastoncepez40monthsbyliftingandvt.sually inspecting theaccessible portionsofatleasttvoicebasketsfromeach1/3oftheicecondenser sndverifying thattheicebasketsazefx'eeofdetrimental structuzal veer,cracks,corrosion orotherdamage.Theicebasketsshallberai.sedatleast12featforthisinspection.
COOKNUCLEARPLANT-UNIT23/46-36AMENDMENT NO)P,125 CONTAIQlENTSYSTEMSBASES3/4.6.4COMBUSTIBLE GASCONTROLTheOPERABILITY oftheequipment andsystemsrequiredforthedetec-tionandcontrolofhydrogengasensuresthatthisequipment will'beavailable tomaintainthehydrogenconcentration withincontainment belowitsflammable limitduringpost-LOCA conditions.
Eitherrccombiner unitiscapableofcontrolling theexpectedhydrogengeneration associated with1)zirconium-water reactions, 2)radiolytic decomposition ofwaterand3)corrosion ofmetalswithincontainment.
Thesehydrogencontrolsystemsarons7st>ht~it'h-theŽrccommendrtions-of ReguUrtory..Guile..l;7, "ControlofCombustible GasConcentrations inContainment Following alOCA",March1971.3/C.6.5ICECONDENSER Therequirements associated witheachofthecomponents oftheicecondenser ensurethat.thcoverallsystemwillbeavailable toprovidesufficient pressuresuppression capability tolimitthecontainment peakpressuretransient tolessthan12psigduringLOCAconditions.
B3/46-.4amendment No,13/4.6.5.1ICEBEDTheOPERABILITY ofthe,icebedensuresthattherequirediceinven-torywill1)bedistributed evenlythroughth~containment bays,2)con-tainsufficient borontoprecludedilutionofthecontainment sumpfollow-ingtheLOCAand3)containsuf,icient heatremovalcapability tocondensethereactorsystemvolumereleasedduringaLOCA.Theseconditions arc'.consistent withtheassumptions usedintheaccidentanalyses.
Theminimum+eightfigureof1220poundsoficeperbasketcontainsa10>>conservative allowance foricelossthroughsublimation whichisafactorof10higherthanassumedfottheicecondenser design.Intheeventthatobservedsublimation.
rates'areequaltoorlowerthande'sign'redictions afterthreeyears'foperation, theminimumicebasketsweight.maybeadjusteddownward.
Inaddition',
thenumberoficebaskets.requiredtobeweightedeachgI8months may'ereducedafter'3.yearsof'peraionifsuchareductionissupported byobservedsublimation
'data.'4.6.5.2ICEBEDTEHPERATURE HONITORING SYSTEHTheOPERABILITY-of theicebedtemperature monitoring systemensuresthatthecapability fsavailable for.monitoring theicetemperature.
Intheeventthemonitoring systemisinoperablc, theACTIONrequirements provideassurance thattheicebedheatremovalcapacitywill.beretaineiwithinthespecified timelimits.D.C.COOK-UNIT2 k,'IE Attachment 3toAEP:NRC:1193 ProposedTechnical Specifications forDonaldC.CookNuclearPlantUnits1and2
~~~~~~'~~~~~~~~'~~~~~~~~~*~~~~~~'I~~~~~'~~'~.~~I'~~~~~~I~~~~~~I~~~~~~~'~4~~'II~~~~~~~~~~~~~I~~~~~~~~~~~'I~~~I~~~~~
CONTAINMENT SYSTEMSSURVEILLANCE REUIMDKNTSContinued shallbeconstituted ofonebasketeachfromRadialRows1,2,4,6,8and9(orfromthesamerowofanadjacentbayifabasketfromadesignated rowcannotbeobtainedforweighing) withineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additSonal basketsfromthesamebayshallbe'eighed.
Theminimumaverageweightoficefromthe20additional basketsandthediscrepant basketshallnotbelessthan1220pounds/basket ata95$levelofconfidence.
Theicecondenser shallalsobesubdivided into3groupsofbaskets,asfollows:Group1-bays1through8,Group2-bays9through16,andGroup3-bays17through24.ThemSnimumaverageiceweightofthesamplebasketsfromRadialRows1,2,4,6,8and9ineachgroupshallnotbelessthan1220pounds/basket ata954levelofconfidence.
ThemininmntotalScecondenser iceweightata95%levelofconfidence shallbecalculated usingallicebasketweS.ghtsdetermined duringthisweighingprogramandshallnotbelessthan2,371',450 pounds.3.Verifying, byavisualinspectS.
onofatleasttwoflowpassagesperScecondenser bay,thattheaccumulation offrostoriceonthetopdeckfloorgrating,ontheintermediate deckandonflowpassagesbetweenicebasketsandpastlatticeframesisrestricted toanominalthickness of3/8inches.Ifoneflowpassageperbayisfoundtohaveanaccumulation offrostoricegreaterthanthisthickness, arepresentative sampleof20addi.tional flowpassagesfromthesamebayshallbevisuallyinspected.
Iftheseadditional flowpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency asuniqueandacceptable.
Morethanonerestricted flowpassageperbayisevidenceofabnormaldegradation oftheicecondenser.
c~Atleastonceper18monthsbyverifying, byavisualinspection, eachicecondenser bay,thattheaccumulation offrostoriceonthelowerinletplenumsupportstructures andturningvanesisrestricted toanominalthickness of3/8inches.Anaccumulation offrostandicegreaterthanthisthickness isevidenceofabnormaldegradation oftheicecondenser.
d.Atbreastonceper40monthsbyliftingandvisuallyinspecting theaccessible portionsofatleasttwoicebasketsfromeach1/3oftheicecondenser andverifying thattheicebasketsarefreeofdetrimental structural wear,cracks,corrosion orotherdamage.Theicebasketsshallberaisedatleast12feetforthisinspection.
COOKNUCLEARPLANT-UNIT13/46-27AMENDMENT NO.108,f21,138i144
~<I~~~I'~~'I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'~~~~~~I~~~~I'~\~~~~~~~~~~~~~~~~~~~~~.~~'~I~~~~I~~~
~VZZXLANCX REUIEErfEHTS Continued shallbeconstituted ofoaebasketeachfromRadialLoca1,2,4,6,8and9(ortzoathesamerovofanad)aceatbayifabasketfromadesignated rovcannotbeobtainedtorveighing) vithineachbay.Ifanybasketisfoundtocontainlessthan1220poundsofice,arepresentative sampleof20additioaal basketsfromthesamebiyshallbeveighed.Theminimumsaverageveightoficetroathe20addi.tional basketsindthediscrepant basketshallnotbelessthan1220pounds/basket ata95%levelofconfidence.
Thei.cecondenser shallalsobesubdivided into3groupsofbaskets,isfollovs:Czoup1-bays1thzough8,Croup2-bays9through16,aad'Croup 3-bays17through24.TheaCaimaaverageiceveightofthesamplebasketsfromkadialkcnrs1,2,4,6,8iad9ineachgroupshallnotbelesschan1220pounds/basket aca95%levelofconfi.dence.
Theminimumtotali.cecondenser icevei.ghc,ata95%levelofconfidence shillbecalculated usingallicebasketreightsdetermined duringthisveighingprogramindshallnotbelessthin2,371,450 pounds.3.Verifying, byavisualinspection oiicleasttvoflovpassagespezi,cecondenser bay,thattheaccelationoffrostoriceonchetopdeckfloorgrating,onthe'ncermediate deckandonflovpassagesbecveenicebasketsindpastlicciceframesisrestricted toanominalthickness of3/8inches.Ifoneflovpassageperbiyisfoundtohaveanaccumulation oftroatoricegzeacerthanthisthi.ckness, irepresentacive sampleof20addi.tioaal tlovpassagesfromthesamebayshallbevisuallyinspected.
Iftheseadditional flovpassagesarefoundacceptable, thesurveillance programmayproceedconsidering thesingledeficiency isuniqueandacceptable.
Morethanonerestricted flovpassageperbayisevidenceotabnormaldegradation oftheicecondensez.
C~'Atleastonceper18monthsbyverifying, byavisualinspection, ofeichicecondenser bay,thattheaccumulation oftroscoriceontheloverplenumsupportstructures indturningvinesisrestricted toanominalthickness of3/8inches.Anaccmxlation offrostori.cegreaterthanthisthickness isevidenceofabnormaldegridatioa oftheicecondenser.
d.Atleastonceper40monthsbyliftingindvisuallyinspecting theaccessibLe portionsofatleasttvoi.cebasketsfromeach1/3ottheicecondenser indverifying thattheicebasketsizetreeofdetrimental structural veer,cracks,corrosion orotherdamage.Theicebasketsshallberaisedaclease12feetforthisinspection.
COOKNUCLEARPLANT-UNIT23/46-36AMENDMENT NOPP,125 CONTAItPENT SYSTEMSBASES3/4.6.4COMBUSTIBLE GASCONTROLThcOPERABILITY oftheequipment andsystemsrequiredforthedetec'-'ion andcontrolof.hydrogengasensures'thatthisequipment will.'beavailable tomafntafnthehydrogenconcentration withincontainment belowitsflaim-,ible limitduringpost-LOCA conditions.
Eitherrecombfner unitfscapableofcontrolling theexpectedhydrogengeneration associated with1)zirconium-water reactions, 2)radfolytfc decomposition ofwaterand3)corrosion ofmetalswithincontainment.
Thesehydrogencontrolsystemsare'onsisfMt~fth-the recammendrtfons-of Regubitory
.Gu&c..l;7,.
"ControlofCombustible GasConcentrations fnContainment Following aLOCA",Marchlg71.3/4.6.5ICECONDENSER Therequirements associated witheachofthecomponents oftheicecondenser ensurethat.thcoverallsystemwillbcavailable toprovidesufficient pressuresuppression capability tolimitthccontainment peakpressuretransient to1essthan12psfgduringLOCAconditions.
'/4.6.5.1 ICEBEDB3/46-.4Amendment Na,1TheOPERABILITY ofthc.icebedensyresthattherequiredfceinven-torywill1)bedistributed evenlythroughth~contafnment bays,2)con-tainsufficient borontoprecludedilutionofthecontainment sumpfollow-ingtheLOCAand3)containsufficient heatremovalcapability tocondensethereactorsystemvolume.re1eased duringaLOCA.'Theseconditions are'.consistent withtheassumptions usedintheaccidentanalyses.
Theminimum~eightfigureof1220poundsoficeperbasketcontainsa10>>conservative aliowa'nce forice.lossthroughsublimation whichisafactorof10higherthanassumedforthefceco~denser design.Inthe'ventthatobservedsublimation.rates
'hreequaltoorlowerthandesign,predict/ons afterthreeyearsofoperation, theminimumicebaskets~eightmaybeadjusteddownward.
Inaddition',
thenumberoffcebasketsrequiredtobeweightedeachj.8monthsmay'ereducedafter'3.yearsof'peration ifsuchareduction issupported byobservedsublimatfon'data,'
'034.6.5.2ICEBEDTEMPERATURE MONITORING SYSTEMTheOPERABILITY.
oftheicebedtemperature monitoring systemensuresthatthecapability isavailable for.monitoring thefcetemperature..
In"theeventthcmonitoring systemisinoperable, theACTIONrequirements provideassurance thatthcicebedheatremovalcapacitywill.beretafneiwithinthespecified timelimits.D.C.COOK-UNIT2 P+5'I'I~cgC