ML18041A080

Forwards Addl Response to IE Bulletin 79-01B Re Environ Qualification of Electrical Equipment.Containment Spray Piping Outside Primary Containment Is Main Shine Source

ML18041A080
Person / Time
Site:	Nine Mile Point
Issue date:	04/17/1980
From:	LEMPGES T E NIAGARA MOHAWK POWER CORP.
To:	GRIER B H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-01, IEB-79-1, NUDOCS 8005120208
Download: ML18041A080 (26)

Text

7NlAGARUMOHAWK'52ROg,o8'IAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST,SYRACUSE.N.Y.13202/TELEPHONE(315)474-1511April17,1980Mr.BoyceH.GrierDirectorUnitedStatesNuclearRegulatoryCommissionRegionI631ParkAvenueKingofPrussia,PA19406Re:DocketNo.50-220I.E.Bulletin79-01B

DearMr.Grier:

OurlettersofMarch5andMarch28,1980,transmittedpartialresponsestoI.E.Bulletin79-018.ThatBulletinaddressesenvironmentalqualificationof-electricalequipment.TheattachedinformationrespondstotheremainingrequestscontainedintheBulletin.Discussionofpreviouslyoutstandingitemsisalsoincluded.Verytrulyyours,NIAGARAMOHAWKPOWERCORPORATIONIr~Qt~7~~~~r~1<ThomasE.LempgesVicePresident-NuclearGenerationDKG:jkAttachment

STATEOFNEWYORK)COUNTYOFONONDAGA)ss:THOMASE.LEMPGES,beingdulysworn,says:IamVicePresident,NuclearGeneration,ofNiagaraMohawkPowerCorporation.Ihavereadtheforegoingletterandthefactscontainedintheletterandattachmentaretruetothebestofmyknowledge,informationandbelief.THOMASE.LEMPGESSworntobeforemeonthis<a~dayofApril,1980NOTARYPUBLICCYNTHIAA.PETTAt:otcrvtonnettithostotootciewYoikQostittodinOnondooot.o.No.4682225MyContntissionExoitosMotcht30,19+5.

RESPONSETOINSPECTIONANOENFORCEMENTBULLETIN79-018APRIL17,1980

Providea"masterlist"ofallEngineeredSafetyFeatureSystems(PlantProtectionSystems)requiredtofunctionunderpostulatedaccidentconditions.Accident.conditionsaredefinedastheLOCA/HELBinsidecontainmentandHELBoutsidecontainment.Foreachsystemwithin(includingcables,EPAs,terminalblocks,etc.)themasterlistidentifyeachClassIEelectricalequipmentitemthatisrequiredtofunctionunderaccidentconditions.Pages1and2ofAttachment2arestandardformatstobeusedforthe"masterlist"withtypicalinformationincluded.Electricalequipmentitems,whicharecomponentsofsystemslistedinAppendixAofAttachment4,whichareassumedtooperateintheFSARsafetyanalysisandarereliedontomitigatedesignbasiseventsareconsideredinthescopeofthisBulletin,regardlesswhetherornottheyareclassifiedaspartoftheengineeredsafetyfeatureswhentheplantwasoriginallylicensed,tooperate.Thenecessityforfurtherupgradingofnon-safetyrelatedplantsystemswillbedependentontheoutcomeofthelicenseesandtheNRCreviewssubsequenttoTMI/2.~ResonseThefollowingadditionstoourMarch28,1980submittalhavebeenidentified:A)The115/4.16KVreservetransformerandReactorProtectionSystem(RPS)BusesIland12shouldbeaddedt'othelistofelectricalequipmentcommon-toallsystems.Attachedisarevisedtable(Table1)ofelectricalequipmentcommontoallsystemswhichincludestheseitems.B)Additionalinstrumentationsystems'lectricalcomponents,inareasexposedtoharshenvironmentalconditions,arelistedinTable2.ItshouldbenotedthatmanycomponentscommontotheReactorProtectionSystemarecontainedinthecomponentlistforreactorvesselinstrumentationtransmittedbyNiagaraMohawk'sMarch5,1980response.question2ForeachClassIEelectricalequipmentitemidentifiedinItem1,providewrittenevidenceofitsenvironmentalqualificationtosupportthecapabilityoftheitemtofunctionunderpostulatedaccidentconditions.ForthoseClassIEelectricalequipmentitemsnothavingadequatequalificationdataavailable,identifyyourplansfordeterminingqualificationsoftheseitemsandyourscheduleforcompletingthisaction.ProvidethisintheformatofAttachment3.~ResonseOurMarch5,1980responseprovidedsystemcomponentevaluationworksheetsforcomponentsinsidetheprimarycontainmentrequiredtomitigatealossofcoolantaccident(LOCA).TheworksheetsforelectricalpenetrationassembliesandGeneralElectricVulkenecableshouldindicatethatnothermalaginghadbeensimulated.Attachedarerevisedworksheetsforthesetwocomponents.

InourMarch28,1response.tothisquestion,itsstatedthatev'aluationworksheetsforcomponentsoutsidetheprimarycontainmentwouldnotbesubmittedunlessit'wasdeterminedthatsuchcomponentsaresubjecttoharshenvironmentsduringaLOCAorhighenergylinebreak(HELB).Anevaluationofpossibleharshenvironmentsoutsidetheprimarycontainmenthasbeencompleted.Thisevaluationindicatesthatcertaingeneralareasmaybesubjecttoharshenvironmentalconditionsoftemperatureandrelativehumidity.Thespecificresultsofthisevaluationareincludedinresponsetoguestion3.NiagaraMohawkispresentlyidentifyingequipmentintheharshenvironmentareasoutsidetheprimarycontainmentandwillsubmitcomponentqualificationevaluationworksheetsforsuchequipmentbyMarch31,1981.(}uestion3ForequipmentidentifiedinItems1and2,provideserviceconditionprofiles(i.e.,temperature,pressure,etc.asafunctionoftime).Thisdatashouldbeprovidedfordesignbasisaccidentconditionsandqualificationtestsperformed.Thisdatamay.beprovidedinprofileortabularform.ResponseServiceconditionsduetoaLOCAinsidetheNineMilePointUnit1primarycontainment,wereprovidedintheMarch5,1980NiagaraMohawksubmittal.EvaluationofharshenvironmentalconditionsduetoHELBoutsideoftheprimarycontainmentindicatesthatgenerallythereact'orbuildingandturbinebuildingmayseetemperaturesof150Fforextendedperiodsoftime,buildingdesignpressure(lessthan1psig)andrelativehumidityof100Konallelevations.Localareasmayseedirect'teamorwaterimpingementandhighertemperatures.OetailedradiationserviceconditionsoutsideoftheNineMilePointUnit1primarycontainmentfollowingaLOCAarebeingevaluated.Preliminarily,ithasbeendeterminedthatthecontainmentspraypipingoutsideoftheprimarycontainmentisthemainshinesource.Integratedradiationdosesinareaswhereradiationsensitive-equipmentmaybelocatedwillbeincludedinevaluationworksheetstobeprovidedbyMarch31,1981.guestion4EvaluatethequalificationofyourClassIEelectricalequipmentagainsttheguidelinesprovidedinAttachment4.Attachment5,"InterimStaffPositiononEnvironmentalgualificationofSafety-RelatedElectricalEquipment",providessupplementalinformationtobeusedwiththeseguidelines.Fortheequipmentidentifiedashaving"OutstandingItems"byAttachment3,provideadetailed"EquipmentgualificationPlan."Includeinthisplanspecificactionswhichwi11betakentodetermineequipmentqualificationandascheduleforcompletingtheactions.

ResponseTheMarch5,1980NiagaraMohawkresponsetoI.E.Bulletin79-01BcontainedqualificationevaluationworksheetsforelectricalcomponentswithintheprimarycontainmentrequiredtomitigateaLOCA.Outstandingitemsontheseworksheetsarebeingfurtherinvestigatedasdescribedbelow.A)D.G.O'rienelectricalpenetrationassembliesandGeneralElectricVulkenecable:NiagaraMohawkwilltestthesecomponentsunderLOCAserviceconditionsincludingwatersprayandsimulatedthermalaging.Testing,tobeperformedbytheFranklinInstituteResearchLaboratorywillbeginbyNovember,1980andisexpectedtobecompletedbyFebruary,1981.B)PlanstoaddressoutstandingitemsforqualificationofLimitorquevalveoperators,automaticdepressurizationsystemsolenoids,andGeneralElectricEB-5terminalboardsaretobereportedbyMarch31,1981.Gener'alElectrichasbeenretainedtoevaluatethisequipmentand-thisdateistheearliestweexpectresultstobeavailable.TheMarch28,1980NiagaraMohawkresponsetoI.E.Bulletin79-01BcontainedqualificationevaluationworksheetsforelectricalcomponentsinsidetheprimarycontainmentwhicharenotrequiredforLOCAmitigationbutmaybeusefultotheoperator(referencedinLOCAprocedure).RecirculationpumpisolationvalvemotoroperatorsarebeingaddressedasindicatedinItem8aboveforLimitorquevalveoperators.,Instrumentationcomponentswithintheprimarycontainmentwillnotbeevaluatedfurther.Cautionwillbeprovidedinoperatorproceduresregardingthequestionablequalificationofoperatoraidtypeequi'pmentbyDecember31,1980.PlanstoaddresspotentialelectricalequipmentqualificationdeficienciesforequipmentoutsidetheprimarycontainmentwillbereportedbyMarch31,1981.GeneralElectrichasbeenretainedtoperformtheevaluationofthisequipmentandwehavebeeninformedthatthisisthebestschedulewecanexpectduetosimilarworktheyareperformingforotherlicensees.(}uestion5Identifythemaximumexpectedfloodlevelinsidetheprimarycontainmentresultingfrompostulated'ccidents.Specifythisfloodlevelbyelevationsuchas620ft.elevation.ProvidethisinformationintheformatofAttachment3.~ResenseMaximumexpectedfloodlevelelevationinsidetheprimarycontainmentresultingfrompostulatedaccidentshasbeenpreviouslyidentifiedintheMarch5andMarch28,1980NiagaraMohawksubmittals.Ithasbeendeterminedthatthemaximumexpectedfloodlevelwillbewithinthesuppressionchamber.

SYSTEMTABLE1ELECTRICALEQUIPMECOMMONTOALLSYSTEMSPlantIdentificationNumber*COMPONENTSGenericNameLocationInsidePrimaryOutsidePrimaryContainmentContainmentFLEXIBLEWATERTITEELECTRICALCOND.FLEX.COND.FITTINGSJ.B.IXXXXX-ATHRUZZZCOPE-TRAYMASTERCABLETRAYCOPE-CAGETRAYFITTINGS115/4.16KVRESERVETRANSFORMERRPSBUS11512SEALTITECONDUITVARIOUSSIZESSEALTITEFITTINGSVARIOUSSIZESJUNCTIONBOXESVARIOUSSIZESCABLETRAYSVARIOUSSIZESCABLETRAYFITTINGSVARIUSSIZESPREFERREDPOWERFORAUX.ELEC.EQUIP.120VACPOWER

SySTEMADDITIONALINSTRUMENTONTABLE2P1antIdentificationNumber*COMPONENTSGenericNameLocationInsidePrimaryOutsidePrimaryContainmentContainment36-03A36-03836-03C36-03D36-04A36-04836-04C36-04D36-05A36-05836-05C36-05D36-06A36-06836-06C36-06D36-07A36-07836-07C36-07D36-08A36-08836-08C36-OSDLEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.LEVELTRANS.hPRESS.TRANS.4PRESS.TRANS.~PRESS.TRANS.~PRESS.TRNAS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.

SySTEMADOITIONAL-INSTRUMETIONTABLE2PlantIdentificationNumber*COMPONENTSGenericNameLocationInsidePrimaryOutsidePrimaryContainmentContainmentNR108ANR108BNR108ENR108CNR1080NR108F01-26A01-26B01-26C01-26001-26E01-26F01-26GOl-26H201.2-476A201.2-476B201.2-476C201.2-476D1810A1B10B1810C1B10D1810E1B10FPRESS.SWITCHPRESS.SWITCHPRESS.SWITCHPRESS.'SWITCHPRESS.SWITCHPRESS.SWITCHPRESS.TRANS.LPRESS.TRANS.aPRESS.TRANS.6PRESS.TRANS.6PRESS.TRANS.6PRESS.TRANS.5PRESS..TRANS.aPRESS.TRANS.PRESSTRANS.PRESS.TRANS.PRESS.TRANS.PRESS.TRANS.TEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCH

1.SYSTEMADDITIONALINSTRUMEIel'IONTABLE2PlantIdentificationNumber*COMPONENTSGenericNameLocationInsidePrimaryOutsidePrimaryContainmentContainment1810G1810H1810J1810K1810L1810M1810N1810P1810Q1810RRN05ARN058RN05CRN05DRV45ARV458RV45CRV45DRN07ARN078RN04RN04RN04TEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHRADIATIONELEMENTRADIATIONELEMENTRADIATIONELEMENTRADIATIONELEMENT~PRESS.SWITCH~PRESS.SWITCH~PRESS.SWITCHb,PRESS.SWITCHRADIATIONELEMENTRADIATIONELEMENTRADIATIONELEMENTRADIATIONELEMENTRADIATIONELEMENT

.SYSTEMADDITIONALINSTRUMEIONTABLE2PlantIdentificationNumber*COMPONENTSGenericNameLocationInsidePrimaryOutsidePrimaryContainmentContainmentRN041B06-131806-141B06-23'806-24201.2-476A-D(4)36-03A-D(4)36-03A-D(4)36-04A-D(4)36-08A-D(4)36-08A-D(4)36-05A-D(4)36-06A-D(4)01-26A-D(4)01-26A-H(8)36-07A-D(4)36-07A-D(4)01-01MSIV01-02MSIV01-03MSIV01-04MSIVIJ12IJ90RADIATIONELEMENTTEMP.ELEMENTTEMP.ELEMENTTEMP.ELEMENTTEMP.ELEMENTTRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(SLAVE)TRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(SLAVE)TRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(MASTER)TRIPUNIT(SLAVE)POSITIONSWITCHPOSITIONSWITCHPOSITIONSWITCHPOSITIONSWITCHFLOWTRANS.FLOWSWITCH

4Facility:NineMilePointUnitlDocket:50-220SySTEMCOMPONENTEVALUATIONWORKSHEETENVIRONMENTDOCUMENTATIONREF.*EquipmentDescriptionParameterpecificationualificationSpecificationQualificationQualificationMethodOutstandingItemssystem:ContainmentPlantIDNo.IsolationH/AOperatingTime60Secs.*".28hrs52.3SimultaneousNoneComponent:EleCtriCalPenetrationAssembliesManufacturer:D.G.O'rien19pin816ModelNo.:5pin8164pin8828pin816Function:ElectricalPenetrationsAccuracy:Spec:H/ADemon:N/AService:ContainmentIsolationTemperature~(F)Pressure(psia)RelativeHumiditySprayRadiationSEEACCIDENTANDTESTPROFILESPROVIDEDlooal00%NA1.15Mrads26Mrads'42.32.323SimultaneousSimultaneousSimultaneousHASimulationHoneNoneHoneNoteINoneLocation:ContainmentEl'59',237'gingNANANA'-""Note -ContainmentFloodLevel:withintorusYesAboveFloodLevel:NoSubmergenceH/AH/AH/AN/AN/A<<Documentation

References:

1.FSM,AppendixE,FiguresE-31andE-332.FIRLTestReportF-C4879,datedDecember19773.FIRLReportF-C4879-1,datedApril19784.LetterdatedMarch7,1979,D.P.Disc(HMPC)toT.Ippolito(NRC)5.FSMCh.VI,TableVI-3**Foraccidentprofilebelownotes:1.Evaluationtobeperformedtodetermineifqualificationtestingis.required

Facility:Docket:NineMilePointUnit150"220SYSTEMCOMPONENTEVALUATIONWORKSHEET1eif~I1EquipmentDescriptionI'ParameterENVIRONMENTpecificationualificationDOCUMENTATIONREF.*SpecificationQualificationQualificationMethodOutstanding,ItemsSystem:COntainmqntIsolatsonPlantIDNo.:N/AOperatingj~TimeI'60Secs**28hrs3~SimultaneousNote1Honecomponent:Electrical'able'anufacturer:-GeneralElectricTemperature(F)Pressure(psia)SEEACCIDENTANDTESTPROFILESPROVIDED2.32.3SimultaneousNote1SimultaneousNote1None.HoneHoNo.:Function:POWerg,COntrOAccuracy:Spec:H/ADemon:H/AService:COntainmentIsolationRelativeHumiditySprayRadiation100%NA1.15Nrads100%26Hrads2.3NASimultaneousNote.1SimulationHoneNote2NoneLocation:COntainmentAgingNANA'HA,Note2ContainmentFloodLevel:withintorusyesAboveFloodLevel:NoeSubmergenceN/AH/AH/AH/AN/A*Documentation

References:

l.FSAR,AppendixE,FiguresE-31andE-332~FIRLTestReportF-C4879,datedDecember19773.FIRLTestReportF-C4879-1,datedApril1978"..Letterdatedtriarch7,1979,D.P.Disc(NHPC)toT.Ippolito(HRC)5.FSARCh.VI,TableVI-3Notes:l.qualifiedaspartoftheElectricalPenetrationAssemblyTests2.Evaluationofserviceconditionsa9in9andsprayisbeingperformed.**Foraccidentprofilebelow 0