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{{#Wiki_filter:>LA.'lTS'ST"-."SSURVEILLANCEREOUIREMEVTS(Continued)Veriyingwithin31daysafterremovalthatalaboratoryanalysisofacarbonsampleobtainedfromatestcanisterdemonstratesaremovalefficiencyof>90"..forradioactivemethyliodidewhenthesampleistestedinaccordancewithANSIN510-1975(130'C,95".R.H.};or2.Verifyingwithin31daysafterremovalthata1:boratoryanalysisofatleasttwocarbonsamplesdemonstratearemovalefficiencyof>90",forradioactivemethyliodidewhenthesamplesaretestedinaccordancewithANSIN510-1975(130'C,95.".R.H.)andthesamplesarepreparedbyeither:a)Emptyingoneentirebedfromaremovedadsorbedtray,mixingtheadsorbentthoroughly,andobtainingsamplesatleasttwoinchesindiameterandwithalengthequaltothethicknessofthebed,orb)Emptyingalongitudinalsamplefromanadsorbertray,mixingtheadsorbentthoroughly,andobtainingsamplesatleasttwoinc'.esindiameterandwithalengthequaltothethicknessofthebed.Subsequenttoreinstallingtheadsorbertrayusedforobtainingthecarbonsample,thesystemshallbedem-onstratedOPERASLEbyalso:a)Verifyingthatthecharcoaladsorbersremove>99"ofahalogenatedhydrocarbonrefrigeranttestgaswhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof'000cfm+10".,andb)VerifyingthattheHEPAfilterbanksremove>99%oftheOOPvhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfm+10"..0.C,COOK-UNIT13/47-21e70eo<0320e70S26PDR*DOCK050003i5PPDR PLANTSYSTEMSSURVEILLANCEREUIREMENTSContinuede.Atleastonceper18monthsby:1.VerifyingthatthepressuredropacrossthefiltersandcharcoaladsorberbanksislessWaterGaugevhileoperatingtheventilationrateof6000cfmplusorminus104.combinedHEPAthan6inchestsystemataflov2.3.Verifyingthatthesystemmaintainsthecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphereatasystemflovrateof6000cfmplusorminus10%.AftereachcompleteorpartialreplacementofaHEPAfilterbankbyverifyingthattheHEPAfiltorbanksremovegreaterthanorequalto99%oftheDOPvhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus1Q%.Aftereachcompleteorpartialreplacementofacharcoaladsorberbankbyverifyingthatthecharcoaladsorbersremovegreaterthanorequalto994ofahalogenatedhydrocarbonrefrigeranttestgasvhentheyaretestedin-placeinaccordancevithANSIN510-1975whileoperatingtheventilationsystemataflovrateof6000cfmplusorminus10%.a.VerifyingtnatonaSafetyInjectionSianalfromUnit1,thesystemautomaticallyoperatesinthepressurization/cleanupmode.b.VerifyingthatonaSafetyInjectionSignalfromUnit2,thesystemautomaticallyoperatesinthepressurization/cleanupmode.COOKNUCLEARPLANT-UNIT13/47-22AMENDMENTNO.)g7.,144.,
{{#Wiki_filter:>LA.'lTS'ST"-."S SURVEILLANCE REOUIREMEVTS (Continued)
0I1 TheUnitlntrolroomemergencyventationsystemoperatesautomaticallyonaSafetyInjectionSignalfromeitherUnit1orUnit2.TheautomaticstartfromUnit2isonlyavailablewhentheUn~t2ESPactuationsystemisactiveinmodeslthrough4inUnit2.PLANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCYVENTILATIONSYSTEMTheOPERABILITYoITYofthecontrolroomemergencyventilationsystemensuresthatthecontrolroomwilomw11remainhabitableforoperationspersonnelduringandothissysteminfollowingallcredibleaccidentconditi.ons.TheOPERABILITYfconjunctionvithcontrolroomdesignprovisionsisbadlisaseonmitingtheraatonexposuretopersonneloccupyingthecontrolroomto51oremoressy,sequivalent.Thislimitationisconsistentvt.ththerequirementsofGeneralDesignCriteria19ofAppendix"A",10CFR50.Thecontrolroomventilationsystemnormallymaintainsthecontrolterneraturesatwhinanseconeroroomatlant.Cotpeawhichcontrolroomequipmentisqualifiedfortheliffhp.oninuedoperationatcheTechnicalSpecificationlimitiseoceotesincetheortionoPoftimeehetemperatureislikelytobeelevatedi.ssmallinonmtspermittedcomparisontothequalifiedlifeoftheequi,pmentatthelimit.34.7.6ESFVENTILATIONSYSTEMTheOPERABILITYoftheESFventilationsystemensuresthatadsaaequatecoolingorequpmencandthatradioactivemateri,alsleakingfromcheCCSequipmentwithinthepumproomfollowingaLOCAarcfil'arcteredpri.orcogeenvronment.Theoperationofthissyseemandtheresultanteffecconoffsitedosagecalculationsvereassumdithideneacccncanalyses.The1980versionofANSIN510isusedasatestingguide.Th'sdhowever,isintendedtoie.isseanard,toberigorouslyappliedonlytosystemswhich,unliketheESFventilationsystem,aredesignedtoANSIN509daostanrds.Forthespecificcaseoteai.r-aerosolmixinguniformi.tytestrequiredbyANSIN510asaprerequisicetoin-placeleaktestingofcharcoalandHEPAfilters,theair'-aerosoluniformmixintestaccepcancecriteriaverenotrigorouslymet.orthi.sreason,astatisticalcorrectionfa"torvillbeappliedtoaplicablesurveillancecestresuleswhererequired.eoappcae34.7.?SEALEDSOURCECONTAMINATIONThelimicationsonse1totalbodorindivdalcdsourceremovablecontaminationensureththynividualorganirradiationdoesnotexceedallowablelimitsintheeventofingestionorinhalationoftheprobableleaksfheeageromtesourcea.emtationsonremovablacontaminationforsourcesrequiringleaktesting,includingalphaemiceers,isbasedon10CFR70.39(c)limitsforintercsctothisspacifi.cationvhichareexemptfromcheleakagetestingareconsistentviththecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNIT1B3/47-5AMENDMENTNO.gag,gg5,159 CUCotuedB~Atleastonceper18monthsby:1.VerifyingthatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorbezbanksislessthan6inchesWaterGaugewhileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10X.2.3.Verifyingthatthesystemmaintainsthecontrolzoomatapositivepressureofgreaterthanorequalto1/16inchV.G.relativetotheoutsideatmosphereatasystemflowrateof6000cfmplusorminus10X.AftereachcompleteorpartialreplacementofaHEPAfilterbankbyverifyingthattheHEPAfilterbanksremovegreaterthanorequalto99XoftheDOPwhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10X.g-Aftezeachcompleteorpartialreplacementof.acharcoaladsorberbankbyverifyingthatthecharcoaladsorbersremovegreaterthanorequalto99Xofahalogenatedhydrocarbonrefrigeranttestgaswhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10X.VerifyingthatonaSafetyInjectionSignalfromUnit1,thesystemautomaticallyoperatesinthepressurization/cleanupmode.fVerifyingthatonaSafetyInjectionSignalfromUnit2,thesystemautomaticallyoperatesinthepressurization/cleanupmode.gfTheprovisionsofTechnicalSpecification4.0.8areapplicable.COOKNUCLEARPLANT-UNIT23/4,7-16aAHENDMENTNO.M,~,158 PIANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCYUENTILATIONSYSTEMTheOPERABILITYofthecontrolroomEMERGENCYventilationsystemensuresthatthecontrolroomvillremainhabitableforoperationspersonnelduringandfollouingallcredibleaccidentconditiona.TheOPERBBELETYcfthiasysteminconjunctionvithcontrolroomdesignprovisi~nsisbasedonlimitingteradiationexposuretopersonneloccupyingthecontrolroomto5remorlessvholebody,oritsequivalent.Thislimitationisconsi.stentviththerequirementsofGeneralDesignCriteri,a19ofAppendix"A",10CFR50.P-~~m)Thecontrolroohventilationsystemnomallymaintainsthecontrolroomattemperaturesatvhi.chcontrolroomequipmentisqualifiedforthelifeofthepant.ContinuedoperationattheTechnicalSpecificationlimitispermittedsincetheportionoftimethetemperatureislikelytobeelevatedi.ssmallincomparisontothequalifiedlifeoftheequipmentatthelimit.TheUnit2controlroomemergencyventilationsystemoperatesautomaticallyonaSafetyInjectionSignalfromeitherUnit1orUnit2.TheautomaticstartfromUnit1isonlyavailablewhentheUnit1ESPactuationsystemisactiveinmodes1through4inUnit1.COOKNUCLEARPLANT-UNIT2B3/47-4aAMENOMENTNOl43 ATTACHMENT3TOAEP:NRC:0398ASPROPOSEDREVISEDTECHNICALSPECIFICATIONPAGES 3/4LIMITINGCONDITIONSFOROPERATIONANDSURVEILLANCEREQUIREMENTS.3/4.7'LANTSYSTEMSSURVEILLANCEREUIREMENTSContinuedAtleastonceper18monthsby:1.VerifyingthatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10%.2.a.VerifyingthatonaSafetyInjectionSignalfromUnit1,thesystemautomaticallyoperatesinthepressurization/cleanupmode.b.VerifyingthatonaSafetyInjectionSignalfromUnit2,thesystemautomaticallyoperatesinthepressurization/cleanupmode.Verifyingthatthesystemmaintainsthecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphereatasystemflowrateof6000cfmplusorminus10%.AftereachcompleteorpartialreplacementofaHEPAfilterbankbyverifyingthattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordancewithANSI$510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacementofacharcoaladsorberbankbyverifyingthatthecharcoaladsorbersremovegreaterth:aorequalto99%ofahalogenatedhydrocarbonrefrigeranttestgaswhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10%.COOKNUCLEARPLANT-UNITIPage3/47-22AMENDMENT407,444, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCYVENTILATIONSYSTEMTheOPERABILITYofthecontrolroomemergencyventilationsystemensuresthatthecontrolroomwillremainhabitableforoperationspersonnelduringandfollowingallcredibleaccidentconditions.TheOPERABILITYofthissysteminconjunctionwithcontrolroomdesignprovisionsisbasedonlimitingtheradiationexposuretopersonneloccupyingthecontrolroomto5remorlesswholebody,oritsequivalent.ThislimitationisconsistentwiththerequirementsofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit1controlroomemergencyventilationsystemoperatesautomaticallyonaSafetyInjectionSignalfromeitherUnit1orUnit2.TheautomaticstartfromUnit2isonlyavailablewhentheUnit2ESFactuationsystemisactiveinmodesIthrough4inUnit2.Thecontrolroomventilationsystemnormallymaintainsthecontrolroomattemperaturesatwhichcontrolroomequipmentisqualifiedforthelifeoftheplant.ContinuedoperationattheTechnicalSpecificationlimitispermittedsincetheportionoftimethetemperatureislikelytobeelevatedissmallincomparisontothequalifiedlifeoftheequipmentatthelimit.3/4.7.6ESFVENTILATIONSYSTEMTheOPERABILITYoftheESFventilationsystemensuresthatadequatecoolingisprovidedforECCSequipmentandthatradioactivematerialsleakingfromthe.ECCSequipmentwithinthepumproomfollowingaLOCAarefilteredpriortoreachingtheenvironment.Theoperationofthissystemandtheresultanteffectonoffsitedosagecalculationswereassumedintheaccidentanalyses.The1980versionofANSIN510isusedasatestingguide.Thisstandard,however,isintendedtoberigorouslyappliedonlytosystemswhich,unliketheESFventilationsystem,aredesignedtoANSIN509standards.Forthespecificcaseoftheair-aerosolmixinguniformitytestrequiredbyANSIN510asaprerequisitetoin-placeleaktestingofcharcoalandHEPAfilters,theair-aerosoluniformmixingtestacceptancecriteriawerenotrigorouslymet.Forthisreason,astatisticalcorrectionfactorwillbeappliedtoapplicablesurveillancetestresultswhererequired3/4.7.7SEALEDSOURCECONTAMINATIONThelimitationsonsealedsourceremovablecontaminationensurethatthetotalbodyorindividualorganirradiationdoesnotexcccdallowablelimitsintheeventofingestionorinhalationoftheprobableleakagefromthcsourcematerial.Thelimitationsonremovablecontaminationforsourcesrequiringleaktesting,includingalphaemitters,arebasedon10CFR70.39(c)limitsforplutonium.Quantitiesofinteresttothisspecificationwhichareexemptfromtheleakagetestingareconsistentwiththecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNITIPageB3/47-5AMENDMENT446,424,4$9, 3/4LIMITINGCONDITIONSFOROPERATIONANDSURVEILLANCEREQUIREMENTS3/4.7'LANTSYSTEMSSURVEILLANCEREUIREMENTSContinuedAtleastonceper18monthsby:1.VerifyingthatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10%.2.a.VerifyingthatonaSafetyInjectionSignalfromUnit1,thesystemautomaticallyoperatesinthepressurization/cleanupmode.tb.VerifyingthatonaSafetyInjectionSignalfromUnit2,thesystemautomaticallyoperatesinthepressurization/cleanupmode.tVerifyingthatthesystemmaintainsthecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphereatasystemflowrateof6000cfmplusorminus10%.AftereachcompleteorpartialreplacementofaHEPAfilterbankbyverifyingthattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacementofacharcoaladsorberbankbyverifyingthatthecharcoaladsorbersremovegreaterthanorequalto99%ofahalogenatedhydrocarbonrefrigeranttestgaswhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilation,systemataflowrateof6000cfmplusorminus10%.tTheprovisionsofTechnicalSpecification4.0.8areapplicable.COOKNUCLEARPLANT-UNIT2Page3/47-16aAMENDMENTK,~,4$8, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCYVENTILATIONSYSTEMTheOPERABILITYofthecontrolroomEMERGENCYventilationsystemensuresthatthecontrolroomwillremainhabitableforoperationspersonnelduringandfollowingallcredibleaccidentconditions.TheOPERABILITYofthissysteminconjunctionwithcontrolroomdesignprovisionsisbasedonlimitingtheradiationexposuretopersonneloccupyingthecontrolroomto5rcmorlesswholebody,oritsequivalent.ThislimitationisconsistentwiththerequirementsofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit2controlroomemergencyventilationsystemoperatesautomaticallyonaSafetyInjectionSignalfromeitherUnit1orUnit2.TheautomaticstartfromUnit1isonlyavailablewhentheUnit1ESFactuationsystemisactiveinmodes1through4inUnit1.Thecontrolroomventilationsystemnormallymaintainsthecontrolroomattemperaturesatwhichcontrolroomcquipmcntisqualifiedforthelifeoftheplant.ContinuedoperationattheTechnicalSpecificationlimitispermittedsincetheportionoftimethetemperatureislikelytobeelevatedissmallincomparisontothequalifiedlifeoftheequipmentatthelimit.COOKNUCLEARPLANT-UNIT2PageB3/47AaAMENDMENT443,  
Veriyingwithin31daysafterremovalthatalaboratory analysisofacarbonsampleobtainedfromatestcanisterdemonstrates aremovalefficiency of>90"..forradioactive methyliodidewhenthesampleistestedinaccordance withANSIN510-1975(130'C,95".R.H.};or2.Verifying within31daysafterremovalthata1:boratory analysisofatleasttwocarbonsamplesdemonstrate aremovalefficiency of>90",forradioactive methyliodidewhenthesamplesaretestedinaccordance withANSIN510-1975(130'C,95.".R.H.)andthesamplesarepreparedbyeither:a)Emptyingoneentirebedfromaremovedadsorbedtray,mixingtheadsorbent thoroughly, andobtaining samplesatleasttwoinchesindiameterandwithalengthequaltothethickness ofthebed,orb)Emptyingalongitudinal samplefromanadsorbertray,mixingtheadsorbent thoroughly, andobtaining samplesatleasttwoinc'.esindiameterandwithalengthequaltothethickness ofthebed.Subsequent toreinstalling theadsorbertrayusedforobtaining thecarbonsample,thesystemshallbedem-onstrated OPERASLEbyalso:a)Verifying thatthecharcoaladsorbers remove>99"ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975whileoperating theventilation systemataflowrateof'000cfm+10".,andb)Verifying thattheHEPAfilterbanksremove>99%oftheOOPvhentheyaretestedin-placeinaccordance withANSIN510-1975whileoperating theventilation systemataflowrateof6000cfm+10"..0.C,COOK-UNIT 13/47-21e70eo<0320 e70S26PDR*DOCK050003i5PPDR PLANTSYSTEMSSURVEILLANCE REUIREMENTS Continued e.Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthefiltersandcharcoaladsorberbanksislessWaterGaugevhileoperating theventilation rateof6000cfmplusorminus104.combinedHEPAthan6inchestsystemataflov2.3.Verifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflovrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfiltorbanksremovegreaterthanorequalto99%oftheDOPvhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus1Q%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto994ofahalogenated hydrocarbon refrigerant testgasvhentheyaretestedin-placeinaccordance vithANSIN510-1975 whileoperating theventilation systemataflovrateof6000cfmplusorminus10%.a.Verifying tnatonaSafetyInjection SianalfromUnit1,thesystemautomatically operates inthepressurization/cleanup mode.b.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.COOKNUCLEARPLANT-UNIT13/47-22AMENDMENT NO.)g7.,144.,
0I1 TheUnitlntrolroomemergency ventationsystemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit2isonlyavailable whentheUn~t2ESPactuation systemisactiveinmodeslthrough4inUnit2.PLANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY oITYofthecontrolroomemergency ventilation systemensuresthatthecontrolroomwilomw11remainhabitable foroperations personnel duringandothissysteminfollowing allcredibleaccidentconditi.ons.
TheOPERABILITY fconjunction vithcontrolroomdesignprovisions isbadlisaseonmitingtheraatonexposuretopersonnel occupying thecontrolroomto51oremoressy,sequivalent.
Thislimitation isconsistent vt.ththerequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.Thecontrolroomventilation systemnormallymaintains thecontrolterneraturesatwhinanseconeroroomatlant.Cotpeawhichcontrolroomequipment isqualified fortheliffhp.oninuedoperation atcheTechnical Specification limitiseoceotesincetheortionoPoftimeehetemperature islikelytobeelevatedi.ssmallinonmtspermitted comparison tothequalified lifeoftheequi,pment atthelimit.34.7.6ESFVENTILATION SYSTEMTheOPERABILITY oftheESFventilation systemensuresthatadsaaequatecoolingorequpmencandthatradioactive materi,als leakingfromcheCCSequipment withinthepumproomfollowing aLOCAarcfil'arcteredpri.orcogeenvronment.Theoperation ofthissyseemandtheresultant effecconoffsitedosagecalculations vereassumdithideneacccncanalyses.
The1980versionofANSIN510isusedasatestingguide.Th'sdhowever,isintendedtoie.isseanard,toberigorously appliedonlytosystemswhich,unliketheESFventilation system,aredesignedtoANSIN509daostanrds.Forthespecificcaseoteai.r-aerosol mixinguniformi.ty testrequiredbyANSIN510asaprerequisice toin-placeleaktestingofcharcoalandHEPAfilters,theair'-aerosol uniformmixintestaccepcancecriteriaverenotrigorously met.orthi.sreason,astatistical correction fa"torvillbeappliedtoaplicablesurveillance cestresuleswhererequired.
eoappcae34.7.?SEALEDSOURCECONTAMINATION Thelimications onse1totalbodorindivdalcdsourceremovable contamination ensureththynividualorganirradiation doesnotexceedallowable limitsintheeventofingestion orinhalation oftheprobableleaksfheeageromtesourcea.emtationsonremovabla contamination forsourcesrequiring leaktesting,including alphaemiceers, isbasedon10CFR70.39(c)limitsforintercsctothisspacifi.cation vhichareexemptfromcheleakagetestingareconsistent viththecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNIT1B3/47-5AMENDMENT NO.gag,gg5,159 CUCotuedB~Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorbezbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10X.2.3.Verifying thatthesystemmaintains thecontrolzoomatapositivepressureofgreaterthanorequalto1/16inchV.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10X.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99XoftheDOPwhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10X.g-Aftezeachcompleteorpartialreplacement of.acharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto99Xofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10X.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.fVerifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.gfTheprovisions ofTechnical Specification 4.0.8areapplicable.
COOKNUCLEARPLANT-UNIT23/4,7-16aAHENDMENT NO.M,~,158 PIANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCY UENTILATION SYSTEMTheOPERABILITY ofthecontrolroomEMERGENCY ventilation systemensuresthatthecontrolroomvillremainhabitable foroperations personnel duringandfollouing allcredibleaccidentconditiona.
TheOPERBBELETY cfthiasysteminconjunction vithcontrolroomdesignprovisi~ns isbasedonlimitingteradiation exposuretopersonnel occupying thecontrolroomto5remorlessvholebody,oritsequivalent.
Thislimitation isconsi.stent viththerequirements ofGeneralDesignCriteri,a 19ofAppendix"A",10CFR50.P-~~m)Thecontrolroohventilation systemnomallymaintains thecontrolroomattemperatures atvhi.chcontrolroomequipment isqualified forthelifeofthepant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedi.ssmallincomparison tothequalified lifeoftheequipment atthelimit.TheUnit2controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit1isonlyavailable whentheUnit1ESPactuation systemisactiveinmodes1through4inUnit1.COOKNUCLEARPLANT-UNIT2B3/47-4aAMENOMENT NOl43 ATTACHMENT 3TOAEP:NRC:0398ASPROPOSEDREVISEDTECHNICAL SPECIFICATION PAGES 3/4LIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REQUIREMENTS
.3/4.7'LANTSYSTEMSSURVEILLANCE REUIREMENTS Continued Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10%.2.a.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.b.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.Verifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordance withANSI$510-1975whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterth:aorequalto99%ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.COOKNUCLEARPLANT-UNIT IPage3/47-22AMENDMENT 407,444, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY ofthecontrolroomemergency ventilation systemensuresthatthecontrolroomwillremainhabitable foroperations personnel duringandfollowing allcredibleaccidentconditions.
TheOPERABILITY ofthissysteminconjunction withcontrolroomdesignprovisions isbasedonlimitingtheradiation exposuretopersonnel occupying thecontrolroomto5remorlesswholebody,oritsequivalent.
Thislimitation isconsistent withtherequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit1controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit2isonlyavailable whentheUnit2ESFactuation systemisactiveinmodesIthrough4inUnit2.Thecontrolroomventilation systemnormallymaintains thecontrolroomattemperatures atwhichcontrolroomequipment isqualified forthelifeoftheplant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedissmallincomparison tothequalified lifeoftheequipment atthelimit.3/4.7.6ESFVENTILATION SYSTEMTheOPERABILITY oftheESFventilation systemensuresthatadequatecoolingisprovidedforECCSequipment andthatradioactive materials leakingfromthe.ECCSequipment withinthepumproomfollowing aLOCAarefilteredpriortoreachingtheenvironment.
Theoperation ofthissystemandtheresultant effectonoffsitedosagecalculations wereassumedintheaccidentanalyses.
The1980versionofANSIN510isusedasatestingguide.Thisstandard, however,isintendedtoberigorously appliedonlytosystemswhich,unliketheESFventilation system,aredesignedtoANSIN509standards.
Forthespecificcaseoftheair-aerosol mixinguniformity testrequiredbyANSIN510asaprerequisite toin-placeleaktestingofcharcoalandHEPAfilters,theair-aerosol uniformmixingtestacceptance criteriawerenotrigorously met.Forthisreason,astatistical correction factorwillbeappliedtoapplicable surveillance testresultswhererequired3/4.7.7SEALEDSOURCECONTAMINATION Thelimitations onsealedsourceremovable contamination ensurethatthetotalbodyorindividual organirradiation doesnotexcccdallowable limitsintheeventofingestion orinhalation oftheprobableleakagefromthcsourcematerial.
Thelimitations onremovable contamination forsourcesrequiring leaktesting,including alphaemitters, arebasedon10CFR70.39(c)limitsforplutonium.
Quantities ofinteresttothisspecification whichareexemptfromtheleakagetestingareconsistent withthecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNIT IPageB3/47-5AMENDMENT 446,424,4$9, 3/4LIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REQUIREMENTS 3/4.7'LANTSYSTEMSSURVEILLANCE REUIREMENTS Continued Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10%.2.a.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.tb.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.tVerifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto99%ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation, systemataflowrateof6000cfmplusorminus10%.tTheprovisions ofTechnical Specification 4.0.8areapplicable.
COOKNUCLEARPLANT-UNIT 2Page3/47-16aAMENDMENT K,~,4$8, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY ofthecontrolroomEMERGENCY ventilation systemensuresthatthecontrolroomwillremainhabitable foroperations personnel duringandfollowing allcredibleaccidentconditions.
TheOPERABILITY ofthissysteminconjunction withcontrolroomdesignprovisions isbasedonlimitingtheradiation exposuretopersonnel occupying thecontrolroomto5rcmorlesswholebody,oritsequivalent.
Thislimitation isconsistent withtherequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit2controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit1isonlyavailable whentheUnit1ESFactuation systemisactiveinmodes1through4inUnit1.Thecontrolroomventilation systemnormallymaintains thecontrolroomattemperatures atwhichcontrolroomcquipmcnt isqualified forthelifeoftheplant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedissmallincomparison tothequalified lifeoftheequipment atthelimit.COOKNUCLEARPLANT-UNIT 2PageB3/47AaAMENDMENT
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Revision as of 07:49, 29 June 2018

Proposed Tech Specs Modifying TS 4.7.5.1.e.2 Which Describes Control Room Ventilation Sys Autostart Functions
ML17333A830
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 03/26/1997
From:
AMERICAN ELECTRIC POWER CO., INC.
To:
Shared Package
ML17333A829 List:
References
NUDOCS 9704010320
Download: ML17333A830 (12)


Text

>LA.'lTS'ST"-."S SURVEILLANCE REOUIREMEVTS (Continued)

Veriyingwithin31daysafterremovalthatalaboratory analysisofacarbonsampleobtainedfromatestcanisterdemonstrates aremovalefficiency of>90"..forradioactive methyliodidewhenthesampleistestedinaccordance withANSIN510-1975(130'C,95".R.H.};or2.Verifying within31daysafterremovalthata1:boratory analysisofatleasttwocarbonsamplesdemonstrate aremovalefficiency of>90",forradioactive methyliodidewhenthesamplesaretestedinaccordance withANSIN510-1975(130'C,95.".R.H.)andthesamplesarepreparedbyeither:a)Emptyingoneentirebedfromaremovedadsorbedtray,mixingtheadsorbent thoroughly, andobtaining samplesatleasttwoinchesindiameterandwithalengthequaltothethickness ofthebed,orb)Emptyingalongitudinal samplefromanadsorbertray,mixingtheadsorbent thoroughly, andobtaining samplesatleasttwoinc'.esindiameterandwithalengthequaltothethickness ofthebed.Subsequent toreinstalling theadsorbertrayusedforobtaining thecarbonsample,thesystemshallbedem-onstrated OPERASLEbyalso:a)Verifying thatthecharcoaladsorbers remove>99"ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975whileoperating theventilation systemataflowrateof'000cfm+10".,andb)Verifying thattheHEPAfilterbanksremove>99%oftheOOPvhentheyaretestedin-placeinaccordance withANSIN510-1975whileoperating theventilation systemataflowrateof6000cfm+10"..0.C,COOK-UNIT 13/47-21e70eo<0320 e70S26PDR*DOCK050003i5PPDR PLANTSYSTEMSSURVEILLANCE REUIREMENTS Continued e.Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthefiltersandcharcoaladsorberbanksislessWaterGaugevhileoperating theventilation rateof6000cfmplusorminus104.combinedHEPAthan6inchestsystemataflov2.3.Verifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflovrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfiltorbanksremovegreaterthanorequalto99%oftheDOPvhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus1Q%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto994ofahalogenated hydrocarbon refrigerant testgasvhentheyaretestedin-placeinaccordance vithANSIN510-1975 whileoperating theventilation systemataflovrateof6000cfmplusorminus10%.a.Verifying tnatonaSafetyInjection SianalfromUnit1,thesystemautomatically operates inthepressurization/cleanup mode.b.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.COOKNUCLEARPLANT-UNIT13/47-22AMENDMENT NO.)g7.,144.,

0I1 TheUnitlntrolroomemergency ventationsystemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit2isonlyavailable whentheUn~t2ESPactuation systemisactiveinmodeslthrough4inUnit2.PLANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY oITYofthecontrolroomemergency ventilation systemensuresthatthecontrolroomwilomw11remainhabitable foroperations personnel duringandothissysteminfollowing allcredibleaccidentconditi.ons.

TheOPERABILITY fconjunction vithcontrolroomdesignprovisions isbadlisaseonmitingtheraatonexposuretopersonnel occupying thecontrolroomto51oremoressy,sequivalent.

Thislimitation isconsistent vt.ththerequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.Thecontrolroomventilation systemnormallymaintains thecontrolterneraturesatwhinanseconeroroomatlant.Cotpeawhichcontrolroomequipment isqualified fortheliffhp.oninuedoperation atcheTechnical Specification limitiseoceotesincetheortionoPoftimeehetemperature islikelytobeelevatedi.ssmallinonmtspermitted comparison tothequalified lifeoftheequi,pment atthelimit.34.7.6ESFVENTILATION SYSTEMTheOPERABILITY oftheESFventilation systemensuresthatadsaaequatecoolingorequpmencandthatradioactive materi,als leakingfromcheCCSequipment withinthepumproomfollowing aLOCAarcfil'arcteredpri.orcogeenvronment.Theoperation ofthissyseemandtheresultant effecconoffsitedosagecalculations vereassumdithideneacccncanalyses.

The1980versionofANSIN510isusedasatestingguide.Th'sdhowever,isintendedtoie.isseanard,toberigorously appliedonlytosystemswhich,unliketheESFventilation system,aredesignedtoANSIN509daostanrds.Forthespecificcaseoteai.r-aerosol mixinguniformi.ty testrequiredbyANSIN510asaprerequisice toin-placeleaktestingofcharcoalandHEPAfilters,theair'-aerosol uniformmixintestaccepcancecriteriaverenotrigorously met.orthi.sreason,astatistical correction fa"torvillbeappliedtoaplicablesurveillance cestresuleswhererequired.

eoappcae34.7.?SEALEDSOURCECONTAMINATION Thelimications onse1totalbodorindivdalcdsourceremovable contamination ensureththynividualorganirradiation doesnotexceedallowable limitsintheeventofingestion orinhalation oftheprobableleaksfheeageromtesourcea.emtationsonremovabla contamination forsourcesrequiring leaktesting,including alphaemiceers, isbasedon10CFR70.39(c)limitsforintercsctothisspacifi.cation vhichareexemptfromcheleakagetestingareconsistent viththecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNIT1B3/47-5AMENDMENT NO.gag,gg5,159 CUCotuedB~Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorbezbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10X.2.3.Verifying thatthesystemmaintains thecontrolzoomatapositivepressureofgreaterthanorequalto1/16inchV.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10X.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99XoftheDOPwhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10X.g-Aftezeachcompleteorpartialreplacement of.acharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto99Xofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10X.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.fVerifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.gfTheprovisions ofTechnical Specification 4.0.8areapplicable.

COOKNUCLEARPLANT-UNIT23/4,7-16aAHENDMENT NO.M,~,158 PIANTSYSTEMSBASES34.7.5CONTROLROOMEMERGENCY UENTILATION SYSTEMTheOPERABILITY ofthecontrolroomEMERGENCY ventilation systemensuresthatthecontrolroomvillremainhabitable foroperations personnel duringandfollouing allcredibleaccidentconditiona.

TheOPERBBELETY cfthiasysteminconjunction vithcontrolroomdesignprovisi~ns isbasedonlimitingteradiation exposuretopersonnel occupying thecontrolroomto5remorlessvholebody,oritsequivalent.

Thislimitation isconsi.stent viththerequirements ofGeneralDesignCriteri,a 19ofAppendix"A",10CFR50.P-~~m)Thecontrolroohventilation systemnomallymaintains thecontrolroomattemperatures atvhi.chcontrolroomequipment isqualified forthelifeofthepant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedi.ssmallincomparison tothequalified lifeoftheequipment atthelimit.TheUnit2controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit1isonlyavailable whentheUnit1ESPactuation systemisactiveinmodes1through4inUnit1.COOKNUCLEARPLANT-UNIT2B3/47-4aAMENOMENT NOl43 ATTACHMENT 3TOAEP:NRC:0398ASPROPOSEDREVISEDTECHNICAL SPECIFICATION PAGES 3/4LIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REQUIREMENTS

.3/4.7'LANTSYSTEMSSURVEILLANCE REUIREMENTS Continued Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10%.2.a.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.b.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.Verifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordance withANSI$510-1975whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterth:aorequalto99%ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.COOKNUCLEARPLANT-UNIT IPage3/47-22AMENDMENT 407,444, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY ofthecontrolroomemergency ventilation systemensuresthatthecontrolroomwillremainhabitable foroperations personnel duringandfollowing allcredibleaccidentconditions.

TheOPERABILITY ofthissysteminconjunction withcontrolroomdesignprovisions isbasedonlimitingtheradiation exposuretopersonnel occupying thecontrolroomto5remorlesswholebody,oritsequivalent.

Thislimitation isconsistent withtherequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit1controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit2isonlyavailable whentheUnit2ESFactuation systemisactiveinmodesIthrough4inUnit2.Thecontrolroomventilation systemnormallymaintains thecontrolroomattemperatures atwhichcontrolroomequipment isqualified forthelifeoftheplant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedissmallincomparison tothequalified lifeoftheequipment atthelimit.3/4.7.6ESFVENTILATION SYSTEMTheOPERABILITY oftheESFventilation systemensuresthatadequatecoolingisprovidedforECCSequipment andthatradioactive materials leakingfromthe.ECCSequipment withinthepumproomfollowing aLOCAarefilteredpriortoreachingtheenvironment.

Theoperation ofthissystemandtheresultant effectonoffsitedosagecalculations wereassumedintheaccidentanalyses.

The1980versionofANSIN510isusedasatestingguide.Thisstandard, however,isintendedtoberigorously appliedonlytosystemswhich,unliketheESFventilation system,aredesignedtoANSIN509standards.

Forthespecificcaseoftheair-aerosol mixinguniformity testrequiredbyANSIN510asaprerequisite toin-placeleaktestingofcharcoalandHEPAfilters,theair-aerosol uniformmixingtestacceptance criteriawerenotrigorously met.Forthisreason,astatistical correction factorwillbeappliedtoapplicable surveillance testresultswhererequired3/4.7.7SEALEDSOURCECONTAMINATION Thelimitations onsealedsourceremovable contamination ensurethatthetotalbodyorindividual organirradiation doesnotexcccdallowable limitsintheeventofingestion orinhalation oftheprobableleakagefromthcsourcematerial.

Thelimitations onremovable contamination forsourcesrequiring leaktesting,including alphaemitters, arebasedon10CFR70.39(c)limitsforplutonium.

Quantities ofinteresttothisspecification whichareexemptfromtheleakagetestingareconsistent withthecriteriaof10CFRParts30.11-20COOKNUCLEARPLANT-UNIT IPageB3/47-5AMENDMENT 446,424,4$9, 3/4LIMITINGCONDITIONS FOROPERATION ANDSURVEILLANCE REQUIREMENTS 3/4.7'LANTSYSTEMSSURVEILLANCE REUIREMENTS Continued Atleastonceper18monthsby:1.Verifying thatthepressuredropacrossthecombinedHEPAfiltersandcharcoaladsorberbanksislessthan6inchesWaterGaugewhileoperating theventilation systemataflowrateof6000cfmplusorminus10%.2.a.Verifying thatonaSafetyInjection SignalfromUnit1,thesystemautomatically operatesinthepressurization/cleanup mode.tb.Verifying thatonaSafetyInjection SignalfromUnit2,thesystemautomatically operatesinthepressurization/cleanup mode.tVerifying thatthesystemmaintains thecontrolroomatapositivepressureofgreaterthanorequalto1/16inchW.G.relativetotheoutsideatmosphere atasystemflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofaHEPAfilterbankbyverifying thattheHEPAfilterbanksremovegreaterthanorequalto99%oftheDOPwhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation systemataflowrateof6000cfmplusorminus10%.Aftereachcompleteorpartialreplacement ofacharcoaladsorberbankbyverifying thatthecharcoaladsorbers removegreaterthanorequalto99%ofahalogenated hydrocarbon refrigerant testgaswhentheyaretestedin-placeinaccordance withANSIN510-1975 whileoperating theventilation, systemataflowrateof6000cfmplusorminus10%.tTheprovisions ofTechnical Specification 4.0.8areapplicable.

COOKNUCLEARPLANT-UNIT 2Page3/47-16aAMENDMENT K,~,4$8, 3/4BASES3/4.7~PLANTSYSTEMS3/4.7.5CONTROLROOMEMERGENCY VENTILATION SYSTEMTheOPERABILITY ofthecontrolroomEMERGENCY ventilation systemensuresthatthecontrolroomwillremainhabitable foroperations personnel duringandfollowing allcredibleaccidentconditions.

TheOPERABILITY ofthissysteminconjunction withcontrolroomdesignprovisions isbasedonlimitingtheradiation exposuretopersonnel occupying thecontrolroomto5rcmorlesswholebody,oritsequivalent.

Thislimitation isconsistent withtherequirements ofGeneralDesignCriteria19ofAppendix"A",10CFR50.TheUnit2controlroomemergency ventilation systemoperatesautomatically onaSafetyInjection SignalfromeitherUnit1orUnit2.Theautomatic startfromUnit1isonlyavailable whentheUnit1ESFactuation systemisactiveinmodes1through4inUnit1.Thecontrolroomventilation systemnormallymaintains thecontrolroomattemperatures atwhichcontrolroomcquipmcnt isqualified forthelifeoftheplant.Continued operation attheTechnical Specification limitispermitted sincetheportionoftimethetemperature islikelytobeelevatedissmallincomparison tothequalified lifeoftheequipment atthelimit.COOKNUCLEARPLANT-UNIT 2PageB3/47AaAMENDMENT

443,

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