ML18037A032

Forwards Addl Info Re Generic Implications of Salem ATWS Events,In Response to Generic Ltr 83-28,Sections 2.1 & 2.2.2

ML18037A032
Person / Time
Site:	Nine Mile Point
Issue date:	09/04/1984
From:	MANGAN C V NIAGARA MOHAWK POWER CORP.
To:	VASSALLO D B Office of Nuclear Reactor Regulation
References
GL-83-28, NUDOCS 8409100189
Download: ML18037A032 (6)

Text

NIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST.SYRACUSE,N.Y.13202/TELEPHONE(315)474-1511September4,1984DirectorofNuclearReactorRegulationAttention:Mr.DomenicB.Vassallo,ChiefOperatingReactorsBranchNo.2DivisionofLicensingU.S.NuclearRegulatoryCommissionWashington,D.C.20555Re:NineMilePointUnit1DocketNo.50-220DPR-63

DearMr.Vassallo:

OurApril30,1984letterprovidedinformationandschedulesrelatedtothegenericimplicationsoftheSalemAnticipatedTransientWithoutScramevents(GenericLetter83-28).AttachedisinformationregardingSections2.1and2.2.2ofyourgenericletterforNineMilePointUnitl.Sincerely,NIAGARAMOHAWKPOWERCORPORATIONPM/bdAttachmentC.V.MangaVicePresidentNuclearEngineeringandLicensing8409100189840904PDRADOCK,05000220PDRgo~))i

~Ep ADDITIONALINFORMATIONREGARDINGGENERICLETTER83-28I.EuimentClassificationMethodoloSection2.1InourinitialresponsetoGenericLetter83-28,datedNovember8,1983,NiagaraMohawkstatedthatareviewofGeneralElectric'sequipmentclassificationmethodologywouldbeconductedandappropriateEngineeringProcedureswouldberevisedifnecessary.NiagaraMohawkhasreviewedGeneralElectric'smethodology,asstatedinNEDC-30505,andhasconcludedthatgeneralagreementexistswiththeappropriateengineeringprocedures.Therefore,procedurerevisionsarenotwarranted.However,atthistime,NiagaraMohawkhasaprojectunderwaywhichinvolvesareviewofourequipmentclassificationlist(g-List).Thepresentg-Listdelineatestheapplicablequalityrequirementsonasystembasis,withupdatesforindividualcomponents.Thisprojectwillconvertthe9-Listtoacomponentlevellist.Thislist,whencompleted,willincludethemechanical,electrical,instrumentationandcontrol,andstructuralportionsofNineMilePointUnit1.ThecriteriabeingusedforthecomponentclassificationarethoselistedintheNineMilePointUnit1FinalSafetyAnalysisReport,datedJune1967,anditsSecond,Supplement,datedOctober1968.AdditionalguidanceisbeingutilizedfromANSI/ANS52.1-1983,"NuclearSafetyCriteriafortheDesignofStationaryBoilingWaterReactorPlants,"andappropriateindustrycodesandstandards(i.e.ASME,IEEE,etc.).Thisprojectwillprovideacleardefinitiontothosestructuresandcomponents,subjecttotherequirementsofourgualityAssuranceprogramandconsistentwithGeneralElectric'scriteriaandtheNineMilePointUnit1licensingbasis.II.VendorInterfaceProram(Section2.2.2)Asindicatedinourpreviouscorrespondence,NiagaraMohawkwasanactiveparticipantintheNuclearUtilityTaskActionCommitteeformedtoaddresscontrolandutilizationofinformationregardingsafetyrelatedcomponents.AttheoutsettheCommitteerecognizeedthatindividualutilitieshavethegreatestexperiencewith,andaremostcognizantof,theapplicationofsafetyrelatedequipment.Basedonthisrecognition,theCommitteeinvestigatedthemechanismscurrentlyavailabletofacilitateinformationexchangeamongutilities.Theseincludedtheroutineutility/vendorandutility/regulatorinterchangesandtheSignificantEventEvaluationandInformationNetwork(SEE-IN)andNuclearPlantReliabilityDataSystem(NPRDS)programsmanagedbytheInstituteofNuclearPowerOperations(INPO).TheCommitteeconcludedthattheseexistingactivities,coupledwithacoordinatedprogramwithineachutility,constitutedanoverallprogramtoensurethedisseminationandutilizationoftechnicalinformationregardingreliabilityofsafetyrelatedequipment.AdditionalinformationdescribingthisoverallprogramwasprovidedtotheNuclearRegulatoryCommissioninMarch1984bytheCommittee.

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AkeyelementofthevendorequipmenttechnicalinformationprogramisautilityprogramtocontributeinformationtotheNPRDSandSEE-INprogramsandtousetheresultsoftheseprograms.TheadministrativecontrolscurrentlybeingimplementedatNineMilePointUnit1containproceduresanddatacollectionrequirementsrelatedtotheseprograms.Theserequirementsprovideassurancethatinformationregardingsafetyrelatedequipmentishandledinanefficient,timelymanner.Nospecificchangetotheseexistingadministrativecontrolsisdeemednecessaryatthistime.However,toincreasetheeffectivenessoftheNPRDSanadditionalindividualhasbeenaddedtotheNineMilePointTechnicalStafftocoordinatetheactivitiesofthisprogram.Thisaction,coupledwiththeexistingadministrativecontrols,meetstheintentofSection2.2.2ofGenericLetter83-28addressingvendorinformationandinterface.

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