ML17258A306

Forwards Status of NUREG-0737 Items Re Environ Qualification of Electrical Equipment.Evaluation of DB-50 Breaker Failure Provided in WCAP-7706-L Indicates That Reactor Trip Breakers Would Function as Required

ML17258A306
Person / Time
Site:	Ginna
Issue date:	11/06/1981
From:	MAIER J E ROCHESTER GAS & ELECTRIC CORP.
To:	CRUTCHFIELD D Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.B.1, TASK-2.B.3, TASK-2.D.3, TASK-2.E.1.2, TASK-2.E.3.1, TASK-2.E.4.1, TASK-2.E.4.2, TASK-2.F.2, TASK-2.G.1, TASK-2.K.3.09, TASK-2.K.3.12, TASK-TM NUDOCS 8111130471
Download: ML17258A306 (9)

Text

REQUL'AiTORlf'NFORMAA"LOVEDDISTR'IBUTlON>SYSTEMI(RXD8)ACCESSIONINBR':8111130471<DOC',DATER'l/lf/96'OTARIZEDI-NODOCKEITI¹iFAGIIL460~2'04Rbbel't<Ktnrnp'tcGinnacNucle8rIPlantg,Uhlt>>1g.RochhsteiiG05090244.'AUTHI,NAMEIAUTHOR'FFIL'IAITCONM'A'IER~RJt,Ef,:Roch'ester.Gas8Eile'ctr8cCorp~RECLP~NAMEIRECiIPZENTLAFFILKAR'IONICRUTCHFIELO~RD~,:Gaelatjng,Rb'actorsBhanch,SiSUBVECIl":KForwardssstatusofNUREGr073i7itemp~reIenvironi,.quaIlificattionKofeelectrieelequipment,EValuatrlon~ofDB.SO,breskerTfaglureIprt)v'idetItiniHcAP~?706'~LIindicates'hattreactoritrip:bi'abkersiwou:ldfunctionsasrequired.:DKSTRKBUTKONiCODKII'OSSS:CDPZEB'ECKKVED:L0'Ri$'NCL(g'IZES:'''''IIITLEI:-Eguipmpnt~Qualification(OR'8PRKIOl;0NOTES:1-copy:SEP'e'ctg,'.LtIr's-05090284RECXPIENTIIOlCODKi/NAMKIACTitION;:ORBI¹SiBCI12.INTERNALc:ELOl20,ARRI/DEI/EQBI01,OGCI2fK6ICLCAMB<M'.H~.9'6<COPIES'IT!TR'NCL(6A6vRECIIPXENTIID>CODEi/NAMEISNAIIDER~eRi,0'1K14I8El1855~'DIIR<22!ls1REGiLlOA1,COPIEB'iTIIRIKNCLI1'A3>>3r1.1-.fTEXTERNALc:ACRS'RCIPDRINTil8"2'3(02'.16"16f~fcLPDRlNSICI03K05if~f<1fT'lllIjfIgggq(TOITAL<iBUNBERIOF:COPZESiREQUIRED;LIITRIf0ENCL'(.

UPj'IIUS///I/////O/AIUDI57gg///Z~/!i/////i////////III////I//I/I8P.'::,ROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.Y.14649JOHNE.MAIERVICCPRESIDENTTCLCDNONCARCACODCTla546-2700November6,1981DirectorofNuclearReactorRegulationAttention:Mr.DennisM.Crutchfield,ChiefOperatingReactorsBranchNo.5U.S.NuclearRegulatoryCommissionWashington,D.C.20555/If"'~~~eel~:

Subject:

EnvironmentalQualificationofElectricalEquipmentR.E.GinnaNuclearPowerPlantDocketNo.50-244

DearMr.Crutchfield:

RochesterGasandElectricsubmittedenvironmentalqualifi-cationinformationrelativetoinstalled"TMIitems"byletterdatedJanuary30,1981.Recently,theNRCconsultants,FranklinResearchCenter,requestedthatweresubmitthisinformation,aswellasprovidethestatusofseveralotherNUREG-0737items.Thisinformationisenclosed.ThequalificationdocumentationisbeingprovidedonlytoMr.CyrilCraneofFRC.RG&EalsotakesthisopportunitytonotethatafailureevaluationoftheDB-50breakers(usedforreactortrip)underadverseconditionssuchashightemperature,highhumidity,flooding,andvibrationisprovidedinSection3.5ofWCAP-7706-L,"AnEvaluationofSolidStateLogicReactorProtectioninAnticipatedTransients"byW.C.GangloffandW.D.Loftus,datedJuly1971.Althoughqualitativeinnature,thisreportdoesprovideadditionalindicationthat.thereactortripbreakerswouldperformtheirfunction(fail-safe)intheshort.timetheyarerequired.ThisWCAPisinthepossessionoftheNRC,andshouldbeprovidedtoFRC.Thisexplanationshouldresolveitem-28bofRG&E'sSeptember4,1981"90-day-response"totheNRC/FRCEnvironmentalQualificationEvaluationforGinna.Verytrulyyours,,'DR~>aiii06p<DOCKOSOOOpyyPDREnclosurexc:CyrilCrane,FRCE.Maier~lII 0Dv'~p,res()ll')ikhP EnclosuretoLetterfromJohnE.MaiertoDennisM.Crutchfield,"EnvironmentalQualificationofElectricalEquipment,"November6,1981NUREG-0737ItemStatus1.II.B.1HeadVentSytem-Thesolenoidvalvescontrollingtheheadventsystemarefullyqualifiedforpost-accident,operationinsidecontainment..Thisqualificationreportentitled"QualificationTest.ReportforIEEEClassIESolenoidValves",QR52600-5940-.2is.beingsubmittedtotheNRCconsultants,FranklinResearchCenter.ThisshouldbedesignatedReference2.73.Itshouldbenotedthatthissystemis'requiredtobeinstalledbyJuly1,1982undertheNUREG-0737schedule.2.II-B.3Post-accidentsampling-Thepost-accidentsamplingsystemisnotyetinstalledatGinna.Thescheduledimple-mentationdateisJuly1,1982.Nodocumentationisthusrequiredatthistime.3.II-D.3DirectIndicationofValvePosition-PositionindicationforthepressurizersafetyandreliefvalvesisprovidedviaLVDTsandNAMCOlimitswitches,respectively,asstatedinRG&E'sletterofJanuary30,1981fromJohnE.MaiertoDarrellG.EisenhutoftheNRC.Theseitemsarelocatedinaharshenvironment(thecontainment).ThefollowingqualificationdocumentationisbeingprovideddirectlytotheNRCconsultants,FranklinResearchCenter,togetherwithacopyofthissubmittal:(1)Reference2.74:Environment,QualificationReport,onPressurizerSafetyValvePositionIndicationSystem,'innaStation,DirectIndicationofValvePosition(2)Reference2.75:NAMCOTestReport,April3,19804.II.E.1.2Auxiliaryfeedwaterinitiationandflow-TheauxiliaryfeedwaterinitiationsystematGinnahasalwaysbeensafety-grade.NomodificationstothesystemwererequiredastheresultofNUREG-0737.Theauxiliaryfeed-watersystemisinitiatedbyaSafetyInjectionsignal,aswellaslowsteamgeneratorwaterlevel,lossof4Kvbusvoltage,andfeedwaterpumpbreakers"open".Theselattertwosignalsareinitiatedbyinstrumentationintheturbinebuilding,whichisa"mildenvironment"undertransientconditionsforwhichthisinstrumentationisinstalled.TheinstrumentationgeneratingaSafetyInjectionsignal,aswellassteamgeneratorlevel,wasdiscussedinRGSE'sprevioussubmittals,andnoadditionalinformationisre-quired.RGSEhaspreviouslycommittedtoreplacethosetransmitterslocatedinaharshenvironment(seeRG&E'sOctober31,1980andSeptember4,1981lettersforthelatestcommitmentstatusforthisequipment).

P-WI4*Illt AuxiliaryfeedwaterflowindicationisprovidedbytheFoxboroNE-10seriestransmitters,whicharelocatedintheIntermediateBuildinginthevicinityoftheauxiliaryfeedwaterpumps.ThesetransmittersarethesameasthosewhichRG&Ehascommittedtoinstalltoreplacethetrans-mittersrequiringenvironmentalqualification,asnotedinourOctober31,1980submittal.Thesetransmittersarestillundergoingfinalqualificationtesting.Itshouldbenotedthat,asstatedinRG&E'sOctober31,1980submittal,theStandbyAuxiliaryFeedwaterSystem,locatedinamildenvironment,issufficienttoprovideallrequiredauxiliaryfeedwatersystemsafetyfunctions.Environmentalqualificationofauxilaryfeedwatersystemcomponentsisdesirable,butnotnecessary.II.E.3.1EmergencyPowerforPressurizerheaters-ThisTMIrequirement,focusesontheavailabilityofemergencypowertopressurizerheaters.Thisisaccomplishedattheemergencyelectricalbuses,whicharelocatedintheauxiliarybuilding,amildenvironment.Noharshenvironmentqualificationdocumentationisrequiredtobeprovided.II.E.4.1Dedicatedhydrogenpenetrations-ThisrequirementisnotapplicabletoGinna,sinceGinnahasredundanthydrogenrecombinersinsidecontainment.II.E.4.2ContainmentIsolationdependability-ThisTMIrequirementfocusesonlyonequipmentinstalledinthecontrolandrelayroomsat,Ginna.Sincethese.areasaresubjectonlytoa"mild"environment,noharshenvironmentqualificationdocumentationisrequiredtobesubmitted.II.F.2DetectionofInadequateCoreCooling-AsnotedinRGB'sJanuary30,1981letter,thisisprovidedbyacombi-nationofhotlegRTD'sandreactorcoolant,pressureinstru-mentation.RGB'sOctober31,1980letterprovidedourplansforthequalificationofthisinstrumentation.II.G.1EmergencyPowertoPressurizerEquipment-ThisTMIrequirementfocusesontheavailabilityofemergencypowertopressurizerequipment.Thisisaccomplishedattheemergencyelectricalbuses,whicharelocatedintheauxiliarybuildingoperatingandintermediatefloors(elevations271and253).Theseareasaresubjectonlytoa"mild"environment.Nodocumentationregardingqualificationtoaharshenvironment,isthusrequired.II.K.3.9PIDController-Asnotedin9above,thisTMIreviewfocusesonlyonequipmentlocatedina"mild"environment(therelayroom).Nodocumentationregardingqualificationtoaharshenvironmentisthusrequired.

~JJ51 11.II.K.3.12Anticipatory"turbinetriporreactortrip-Asnotedin9above,thisTMIreviewfocusesonlyonequipmentlocatedina"mild"environment(therelayroom).Nodocumentationregardingqualificationtoaharshenvironmentisthusrequired.

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