ML17261A788

Proposed Tech Spec Changes Re Reactor Trip Breakers

ML17261A788
Person / Time
Site:	Ginna
Issue date:	01/26/1988
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17261A787	List: ML17261A785 ML17261A788
References
GL-83-28, NUDOCS 8802030538
Download: ML17261A788 (9)

Text

ATTACHMENTAReviseAppendixATechnicalSpecificationsbyremovingthepagesidentified.belowandinsertingtheenclosedpages.3.5-83.5-154.1-7INSERT3.5-83.5-154.1-74.1-7aSS020305SB,8>000a44so>a6PDRgDOCK0>0PgRP

((C/'HICIlII1>ICI1)"I'I TABLE3'-1ContinuedPROTECTIONSYSTEMINSTRUMENTATION~+Z0NO.FUNCTIONALUNIT19.DegradedVoltage480VSafeguardsBus20.AutomaticTripLogicIncludingReactorTripBreakersTOTALNO.ofCHANNELS2/busNO.ofCHiQQ&LSTOTRIP2/busMIN.OPERABLECHANNELS1/busPERMISSIBLEBYPASSCONDITIONSNote45OPERATORACTIONIFCONDITIONSOFCOLUMN1OR3CANNOTBEMET(3DNNELOPERABLEABOVETT*a~=350FWhenRCCAiswithdrawnGDQlICONOTE1:NOTE2:NOTE3:tNOTE4:F.P.Whenblockconditionexists,maintainnormaloperation.Channelsshouldbeoperableatallmodesbelowthebypassconditionwiththereactortripsystembreakersintheclosedpositionandcontrolroddrivesystemcapableofrodwithdrawal.Channelsshallbeoperableatallmodesbelowthebypassconditionexceptduringrefuelingdefinedtobewhenfuelisinthereactorvesselwiththevesselheadclosureboltslessthanfullytensionedorwiththeheadremoved.Onereactortripbreakermaybebypassedforsurveillancetestingprovidedtheotherreactortripbreakerisoperable.FullPower00O0mO.

12.WiththenumberofoperablechannelslessthantheTotalNumberofChannels,operationmayproceedprovidedtheinoperablechannelisplacedinthetrippedconditionwithin1hour.ShouldthenextChannelFunctionalTestrequirethebypassofaninoperablechanneltoavoidthegenerationofanactuationsignal,operationmayproceeduntilthisChannelFunctionalTest.AtthetimeofthisChannelFunctionalTest,orifatanytimethenumberofoperablechannelsislessthantheMinimumOperableChannelsrequired,beathotshutdownwithin6hoursandatanRCStemperaturelessthan350Fwithin6hours.13.WiththenumberofoperablechannelslessthantheMinimumOperableChannelsrequired,operationmaycontinueprovidedthecontainmentpurgeandexhaustvalvesaremaintainedclosed.14.Shouldonereactortripbreakerorchanneloftriplogicbeinoperabletheplantmustnotbeintheoperatingmodefollowingasixhourtimeperiod.Ifoneofthediversereactortripbreakertripfeatures(undervoltageorshunttripattachment)ononebreakerisinoperable,restoreittooperablestatuswithin48hoursordeclarebreakerinoperable.Ifattheendofthe48hourperiodonetripfeatureisinoperableitmustberepairedortheplantmustnotbeintheoperatingmode,andthereactortripbreakermustbeopen,followinganadditionalsixhourtimeperiod.AmendmentNo.3.5-15proposed g0'UoO.ChannelDescrition25.ContainmentPressureTABLE41-1(CONTINUED)CheckCalibrateTestRemarksNarrowrangecontainmentpressure(-3.0,+3psig)excluded26.SteamGeneratorPressureS27.TurbineFirstStagePressure28.EmergencyPlanRadiationInstrumentsS29.EnvironmentalMonitorsP30.LossofVoltage/DegradedVoltage480VoltSafeguardsBusNANANA31.TripofMainFeedwaterPumps32.SteamFlowLvoNASSNA34.ChlorineDetector,ControlRoomAirIntakeNA35.'mmoniaDetector,ControlRoomAirIntakeNA36.RadiationDetectors,ControlRoomNAAirIntake37a.TripBreakerLogicChannelTestingNANANotes1,2and337b.TripBreakerLogicChannelTestingNANANote13Z0 TABLE4.1-1(CONTINUED)ChannelCheckCalibrateTestRemarks38.ReactorTripBreakersNANAMFunctiontest-Includesindependenttestingofbothundervoltageandshunttripattachmentofreactortripbreakers.Eachofthetworeactortripbreakerswillbetested.onalternatemonths.Note239.ManualReactorTrip40a.ReactorTripBypassBreaker40b.ReactorTripBypassBreakerNANANANANANAIncludesindependenttestingofbothundervoltageandshunttripcircuits.Thetestshallalsoverifytheoperabilityofthebypassbreaker.Usingtestswitchesinthereactorprotectionrackmanuallytripthereactortripbypassbreakerusingtheshunttripcoil.Automaticallytriptheunder-voltagetripattachment.NOTE1:Logictrainswillbetestedonalternatemonthscorrespondingtothereactortripbreakertesting.Monthlylogictestingwillverifytheoperabilityofallsetsofreactortriplogicactuatingcontactsonthattrain(SeeNote3).Refuelingshutdowntestingwillverifytheoperabilityofallsetsofreactortripactuatingcontactsonbothtrains.Intesting,operationofonesetofcontactswillresultinareactortripbreakertrip;theoperationofallothersetsofcontactswillbeverifiedbytheuseofindicationcircuitry.NOTE2:Testingshallbeperformedmonthly,unlessthereactortripbreakersareopen,orshallbeperformedpriortostartupiftestinghasnotbeenperformedwithinthelast30days.NOTE3:Thesourcerangetriplogicmaybeexcludedfrommonthlytestingprovideditistestedwithin30dayspriortostartup.

ATTACHMENTBThisproposedTechnicalSpecificationchangereflectstherequestmadeintheJanuary9,1987NRCletterfromDominicC.DiIannitoRogerN.Koberconcerningthe"ReviewofDesignforAutomaticShuntTripforReactorTripBreakers(GenericLetter83-28Item4.3)".Theproposed.changesincorporateon-linereactortripbreakertestingintotheTechnicalSpecifications.Adetaileddescriptionofallthechangesispresented.onTable1.ThischangeinTechnicalSpecificationsclearlyisnotarequestforachangeintheauthorizedpowerlevelasitisrelatedonlytooperationalandtestingrequirementsofthereactortripbreak-erswithintheplant.Further,themajorpossibleconsequenceofthischangethatcanbeforeseenatthistimeisthatoveraperiodoftimeadditionalplanttripsmayoccurthroughactionstakenduringmonthlytestingofthereactortripbreakers.However,occasionaltripsareconsideredwithinthenormaloperatingconditionsatapowerplant.Asignificanthazardsanalysishasbeenaccomplishedagainstthecriteria.in10CFR50.92.'ecausethe'proposed.changesconstitute."addition'allimitations'andcontrol'onbothoperationandtesting'i'heydo'not:(1)involveasignificantincreaseintheprobabilityorconsequences'ofanaccidentpreviouslyevaluated;or(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or(3)involveasignificantreductioninamarginofsafety.Therefore,RochesterGasandElectricsubmitsthattheissuesassociatedwiththisamendmentrequestwarrantanosignificanthazardsfinding.

TABLE1DetailedTechnicalSecificationChanesLocationDescritionofChaneReasonforChanep.3.5-8,Table3.5-1Page3of3AddItem20-AutomaticTripLogicincludingReactorTripBreakers.ThischangereflectsnewoperatingconditionrequirementsfortheReactorTripBreakersandreactortriplogic.ChangeNote3-thefifthwordofsentenceshouldbechangedfrom"of"to"at".Correcttypographicalerror.AddNote4tothebottomofthispage.ThisNoteisneededtoexplainthebypassconditioninthenewItem20.p.3.5-15ActionStatementAddNumber14tothebottomofthispage.Thisnoteisrequiredtoexplainfullytheoperatoractionsrequirediftherequirementofcolumn3forline20ofTable3'-1cannotbemet.p.4.1-7Table4.1-1AddItems37aand37bcon-cerninglogictestingonamonthlyandrefuelingoutagebasis.ThisadditionreflectsnewtestingrequirementsinresponsetoNRCletter83-28.p.4.1-7aTableF1-1AddItem38concerningthetestingofReactorTripBreakers.ThisadditionreflectsnewtestingrequirementsinresponsetoNRCletter83-28.AddItem39concerningthetestingofthemanualtrippingoftheReactorTripBreakers.ThisadditionreflectsnewtestingrequirementsinresponsetoNRCletter83-28.AddItems40aand40bcon-cerningthetestingoftheReactorTripBypassBreaker.ThisadditionreflectsnewtestingrequirementsinresponsetoNRCletter83-28.AddNotes1,2,3ThesenotesarerequiredtoexplainthetestingrequirementsofthelogicassociatedwiththeReact'.orTripBreakers.

~~IIMi',1K