ML17319A963

Proposed Tech Specs for Facility Re RCS Vents

ML17319A963
Person / Time
Site:	Cook
Issue date:	07/15/1981
From:	INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17319A959	List: ML17319A958 ML17319A960 ML17319A961 ML17319A962 ML17319A963 ML17331A772
References
NUDOCS 8107210427
Download: ML17319A963 (8)

Text

RE'.ACTORCOOLANTSYSTEMREACTORCOOLANTSYSTEMVENTSpny6/~7.LIMITINGCONDITIONFOROPER"iTION3.4.5.2TworedundantReactorCoolantSystemVent(RCSV)pathsshallbeOPERABLE.APPLICABILITY:Modes1,2and3.ACTION:a.WithonlyoneRCSVpathOPERABLE,STARTUPand/orPOWEROPERATIONmaycontinueprovidedtheinoperablepathismairtainedclosedwithpowerremovedfromthevalveactuators;otherwisebeinHOTSTANDBYwithin6hoursandHOTSHUTDOWNwithinthefollowing6hours.b.WithnoRCSVpathOPERABLEwithin24hourseitherrestoreatleastonepathtoOPERABLEstatusorbeinHOTSHUTDOWN.SURVEILLANCEREQUIREMENTS4.4.5.2EachRCSVI)4thshallbedemonstratedOPERABLEfollowingeachrefuelingby:a.'erifyingthattheupstreammanualisolationvalveislockedintheopenedpositin.b.Operatingeachremotelycontrolledvalvethroughonecyclefromthecontrolroom.c.VerifyingflowthroughtheRCSVpathsduringsystemventing.Bi,072i0427Bi0715PDRADOCK050003i5PPDR 3'2REACTORCOOLANTSYSTENVENTSThefunctionoftheReactorCoolantSystemVents{RCSV)istoremovenon-condens:-;-blesorsteamfromthereactorvesselheadand/orpressurizer.Thissystemisde=ignedtomitigateapossibleconditionofinadequatecorecooling;inade-quatenacira1circulation,orinabi1itytodepressurizetoResidua1HeatRe:;ova1Systeminitiationcondikionsresultingfromtheaccumulationofnon-condensabegasesintheReactorCoo1antSystem.Thereactorvesselheadventandthepressurizerventareeachdesignedwithredundantsafety:,radeventpaths.HavingeithersystemOPERABLEorhavingonepathineach-systemfromoppositetrainsOPERABLEissufficienttomeettheprovisionsofSpecification3.4.5.2.

P(~u~cDONALOC.COOKNUCLEARPLANTUttlTt/OS.1AND2 NOTE:removeorreducethevolumeofhydrogenfromthecontainmentpriortore-openingthepressurizervent.12.Returntotheappropriateoperatinginstructionfollowingthesuccessfulcompletionoftheventing'.ofthepressurizervaporspace.Harch,1981Revision0PageS

~gAPPENDIX,APRESSURIZERVENTGUIDELINEVENTINGTIMEPERIOD1.Convertthecontainmentfree-volumetocontainmentvolumeatstandardtemperatureandpressureconditions.CtPr~<92'Ri-i.ii-tiip)=(ii~ii')i(-'%Pppf'"'")i(e,-",ri..)FT*TemperatureindegreesRankine('F+460)~Ifcontainmentpressurehasincreased'above14.7psiathenuse14.7psigaspressureforconservatism.2.Determinethecontainmenthydrogenconcentrationinvo1umepercentunits..iNOTE:The.containmenthydrogenconcentrationwillbeinsigificantiftherehasbeennoleakagefrom'.theRCStothecontainment..3.Calculatethe.maximumhydrogenvolume~natcanbeventedtothecontainmentwhichwillresultinacontainment.hydrogenconcentration'flessthanorequalto3volumepercent.(3.0~-Cont.H~ConcentrationXCont.VolumeISTPMaximumH2Volume=tobeVented't4.FromCurve'0l(RCSPressurevsH2FlowRate)determinetheallowableventing'periodwhichwilllimitthecontainmenthydrogenconcentration'ta3volumepercent..YiiltiiiMax.HoVented(FromStep3)ZFlowRateMins."March,1931,Revision0Page6

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~~~g~~~'CURVE91'PPENDIX.A200015003CS'~ressure(PSI)10005001000..200030004000~'-'HYDROGENFLOWRATE(SCm)me'i$~5000 ATTACHMENT4TOAEP:NRC:0584