ML18041A080
| 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'IAGARA MOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE.
N.Y.13202/TELEPHONE (315)474-1511April17,1980Mr.BoyceH.GrierDirectorUnitedStatesNuclearRegulatory Commission RegionI631ParkAvenueKingofPrussia,PA19406Re:DocketNo.50-220I.E.Bulletin79-01B
DearMr.Grier:
OurlettersofMarch5andMarch28,1980,transmitted partialresponses toI.E.Bulletin79-018.ThatBulletinaddresses environmental qualification of-electrical equipment.
Theattachedinformation respondstotheremaining requestscontained intheBulletin.
Discussion ofpreviously outstanding itemsisalsoincluded.
Verytrulyyours,NIAGARAMOHAWKPOWERCORPORATION Ir~Qt~7~~~~r~1<ThomasE.LempgesVicePresident
-NuclearGeneration DKG:jkAttachment
STATEOFNEWYORK)COUNTYOFONONDAGA)ss:THOMASE.LEMPGES,beingdulysworn,says:IamVicePresident, NuclearGeneration, ofNiagaraMohawkPowerCorporation.
Ihavereadtheforegoing letterandthefactscontained intheletterandattachment aretruetothebestofmyknowledge, information andbelief.THOMASE.LEMPGESSworntobeforemeonthis<a~dayofApril,1980NOTARYPUBLICCYNTHIAA.PETTAt:otcrvtonnettithostotootciewYoikQostittod inOnondooot.o.No.4682225MyContntission ExoitosMotcht30,19+5.
RESPONSETOINSPECTION ANOENFORCEMENT BULLETIN79-018APRIL17,1980
Providea"masterlist"ofallEngineered SafetyFeatureSystems(PlantProtection Systems)requiredtofunctionunderpostulated accidentconditions.
Accident.conditions aredefinedastheLOCA/HELB insidecontainment andHELBoutsidecontainment.
Foreachsystemwithin(including cables,EPAs,terminalblocks,etc.)themasterlistidentifyeachClassIEelectrical equipment itemthatisrequiredtofunctionunderaccidentconditions.
Pages1and2ofAttachment 2arestandardformatstobeusedforthe"masterlist"withtypicalinformation included.
Electrical equipment items,whicharecomponents ofsystemslistedinAppendixAofAttachment 4,whichareassumedtooperateintheFSARsafetyanalysisandarereliedontomitigatedesignbasiseventsareconsidered inthescopeofthisBulletin, regardless whetherornottheyareclassified aspartoftheengineered safetyfeatureswhentheplantwasoriginally licensed,tooperate.Thenecessity forfurtherupgrading ofnon-safety relatedplantsystemswillbedependent ontheoutcomeofthelicensees andtheNRCreviewssubsequent toTMI/2.~ResonseThefollowing additions toourMarch28,1980submittal havebeenidentified:
A)The115/4.16KV reservetransformer andReactorProtection System(RPS)BusesIland12shouldbeaddedt'othelistofelectrical equipment common-toallsystems.Attachedisarevisedtable(Table1)ofelectrical equipment commontoallsystemswhichincludestheseitems.B)Additional instrumentation systems'lectrical components, inareasexposedtoharshenvironmental conditions, arelistedinTable2.Itshouldbenotedthatmanycomponents commontotheReactorProtection Systemarecontained inthecomponent listforreactorvesselinstrumentation transmitted byNiagaraMohawk'sMarch5,1980response.
question2ForeachClassIEelectrical equipment itemidentified inItem1,providewrittenevidenceofitsenvironmental qualification tosupportthecapability oftheitemtofunctionunderpostulated accidentconditions.
ForthoseClassIEelectrical equipment itemsnothavingadequatequalification dataavailable, identifyyourplansfordetermining qualifications oftheseitemsandyourscheduleforcompleting thisaction.ProvidethisintheformatofAttachment 3.~ResonseOurMarch5,1980responseprovidedsystemcomponent evaluation worksheetsforcomponents insidetheprimarycontainment requiredtomitigatealossofcoolantaccident(LOCA).Theworksheets forelectrical penetration assemblies andGeneralElectricVulkenecableshouldindicatethatnothermalaginghadbeensimulated.
Attachedarerevisedworksheets forthesetwocomponents.
InourMarch28,1response.tothisquestion, itsstatedthatev'aluation worksheets forcomponents outsidetheprimarycontainment wouldnotbesubmitted unlessit'wasdetermined thatsuchcomponents aresubjecttoharshenvironments duringaLOCAorhighenergylinebreak(HELB).Anevaluation ofpossibleharshenvironments outsidetheprimarycontainment hasbeencompleted.
Thisevaluation indicates thatcertaingeneralareasmaybesubjecttoharshenvironmental conditions oftemperature andrelativehumidity.
Thespecificresultsofthisevaluation areincludedinresponsetoguestion3.NiagaraMohawkispresently identifying equipment intheharshenvironment areasoutsidetheprimarycontainment andwillsubmitcomponent qualification evaluation worksheets forsuchequipment byMarch31,1981.(}uestion 3Forequipment identified inItems1and2,provideservicecondition profiles(i.e.,temperature,
- pressure, etc.asafunctionoftime).Thisdatashouldbeprovidedfordesignbasisaccidentconditions andqualification testsperformed.
Thisdatamay.beprovidedinprofileortabularform.ResponseServiceconditions duetoaLOCAinsidetheNineMilePointUnit1primarycontainment, wereprovidedintheMarch5,1980NiagaraMohawksubmittal.
Evaluation ofharshenvironmental conditions duetoHELBoutsideoftheprimarycontainment indicates thatgenerally thereact'orbuildingandturbinebuildingmayseetemperatures of150Fforextendedperiodsoftime,buildingdesignpressure(lessthan1psig)andrelativehumidityof100Konallelevations.
Localareasmayseedirect'team orwaterimpingement andhighertemperatures.
Oetailedradiation serviceconditions outsideoftheNineMilePointUnit1primarycontainment following aLOCAarebeingevaluated.
Preliminarily, ithasbeendetermined thatthecontainment spraypipingoutsideoftheprimarycontainment isthemainshinesource.Integrated radiation dosesinareaswhereradiation sensitive-equipment maybelocatedwillbeincludedinevaluation worksheets tobeprovidedbyMarch31,1981.guestion4Evaluatethequalification ofyourClassIEelectricalequipment againsttheguidelines providedinAttachment 4.Attachment 5,"InterimStaffPositiononEnvironmental gualification ofSafety-Related Electrical Equipment",
providessupplemental information tobeusedwiththeseguidelines.
Fortheequipment identified ashaving"Outstanding Items"byAttachment 3,provideadetailed"Equipment gualification Plan."Includeinthisplanspecificactionswhichwi11betakentodetermine equipment qualification andascheduleforcompleting theactions.
ResponseTheMarch5,1980NiagaraMohawkresponsetoI.E.Bulletin79-01Bcontained qualification evaluation worksheets forelectrical components withintheprimarycontainment requiredtomitigateaLOCA.Outstanding itemsontheseworksheets arebeingfurtherinvestigated asdescribed below.A)D.G.O'rienelectrical penetration assemblies andGeneralElectricVulkenecable:NiagaraMohawkwilltestthesecomponents underLOCAserviceconditions including watersprayandsimulated thermalaging.Testing,tobeperformed bytheFranklinInstitute ResearchLaboratory willbeginbyNovember, 1980andisexpectedtobecompleted byFebruary, 1981.B)Planstoaddressoutstanding itemsforqualification ofLimitorque valveoperators, automatic depressurization systemsolenoids, andGeneralElectricEB-5terminalboardsaretobereportedbyMarch31,1981.Gener'alElectrichasbeenretainedtoevaluatethisequipment and-thisdateistheearliestweexpectresultstobeavailable.
TheMarch28,1980NiagaraMohawkresponsetoI.E.Bulletin79-01Bcontained qualification evaluation worksheets forelectrical components insidetheprimarycontainment whicharenotrequiredforLOCAmitigation butmaybeusefultotheoperator(referenced inLOCAprocedure).
Recirculation pumpisolation valvemotoroperators arebeingaddressed asindicated inItem8aboveforLimitorque valveoperators.,
Instrumentation components withintheprimarycontainment willnotbeevaluated further.Cautionwillbeprovidedinoperatorprocedures regardingthequestionable qualification ofoperatoraidtypeequi'pment byDecember31,1980.Planstoaddresspotential electrical equipment qualification deficiencies forequipment outsidetheprimarycontainment willbereportedbyMarch31,1981.GeneralElectrichasbeenretainedtoperformtheevaluation ofthisequipment andwehavebeeninformedthatthisisthebestschedulewecanexpectduetosimilarworktheyareperforming forotherlicensees.
(}uestion 5Identifythemaximumexpectedfloodlevelinsidetheprimarycontainment resulting frompostulated'ccidents.
Specifythisfloodlevelbyelevation suchas620ft.elevation.
Providethisinformation intheformatofAttachment 3.~ResenseMaximumexpectedfloodlevelelevation insidetheprimarycontainment resulting frompostulated accidents hasbeenpreviously identified intheMarch5andMarch28,1980NiagaraMohawksubmittals.
Ithasbeendetermined thatthemaximumexpectedfloodlevelwillbewithinthesuppression chamber.
SYSTEMTABLE1ELECTRICAL EQUIPMECOMMONTOALLSYSTEMSPlantIdentification Number*COMPONENTS GenericNameLocationInsidePrimaryOutsidePrimaryContainment Containment FLEXIBLEWATERTITE ELECTRICAL COND.FLEX.COND.FITTINGSJ.B.IXXXXX-ATHRUZZZCOPE-TRAYMASTER CABLETRAYCOPE-CAGETRAYFITTINGS115/4.16KVRESERVETRANSFORMER RPSBUS11512SEALTITECONDUITVARIOUSSIZESSEALTITEFITTINGSVARIOUSSIZESJUNCTIONBOXESVARIOUSSIZESCABLETRAYSVARIOUSSIZESCABLETRAYFITTINGSVARIUSSIZESPREFERRED POWERFORAUX.ELEC.EQUIP.120VACPOWER
SySTEMADDITIONAL INSTRUMENTON TABLE2P1antIdentification Number*COMPONENTS GenericNameLocationInsidePrimaryOutsidePrimaryContainment Containment 36-03A36-03836-03C36-03D36-04A36-04836-04C36-04D36-05A36-05836-05C36-05D36-06A36-06836-06C36-06D36-07A36-07836-07C36-07D36-08A36-08836-08C36-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-INSTRUME TIONTABLE2PlantIdentification Number*COMPONENTS GenericNameLocationInsidePrimaryOutsidePrimaryContainment Containment NR108ANR108BNR108ENR108CNR1080NR108F01-26A01-26B01-26C01-26001-26E01-26F01-26GOl-26H201.2-476A 201.2-476B 201.2-476C201.2-476D 1810A1B10B1810C1B10D1810E1B10FPRESS.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.SYSTEMADDITIONAL INSTRUMEIel'ION TABLE2PlantIdentification Number*COMPONENTS GenericNameLocationInsidePrimaryOutsidePrimaryContainment Containment 1810G1810H1810J1810K1810L1810M1810N1810P1810Q1810RRN05ARN058RN05CRN05DRV45ARV458RV45CRV45DRN07ARN078RN04RN04RN04TEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHTEMP.SWITCHRADIATION ELEMENTRADIATION ELEMENTRADIATION ELEMENTRADIATION ELEMENT~PRESS.SWITCH~PRESS.SWITCH~PRESS.SWITCHb,PRESS.SWITCHRADIATION ELEMENTRADIATION ELEMENTRADIATION ELEMENTRADIATION ELEMENTRADIATION ELEMENT
.SYSTEMADDITIONAL INSTRUMEIONTABLE2PlantIdentification Number*COMPONENTS GenericNameLocationInsidePrimaryOutsidePrimaryContainment Containment RN041B06-131806-141B06-23'806-24 201.2-476A-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)01-01MSIV01-02MSIV01-03MSIV01-04MSIVIJ12IJ90RADIATION ELEMENTTEMP.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:50-220SySTEMCOMPONENT EVALUATION WORKSHEETENVIRONMENT DOCUMENTATION REF.*Equipment Description Parameter pecification ualification Specification Qualification Qualification MethodOutstanding Itemssystem:Containment PlantIDNo.Isolation H/AOperating Time60Secs.*".28hrs52.3Simultaneous NoneComponent:
EleCtriCalPenetration Assemblies Manufacturer:
D.G.O'rien19pin816ModelNo.:5pin8164pin8828pin816Function:
ElectricalPenetrations Accuracy:
Spec:H/ADemon:N/AService:Containment IsolationTemperature
~(F)Pressure(psia)RelativeHumiditySprayRadiation SEEACCIDENTANDTESTPROFILESPROVIDEDlooal00%NA1.15Mrads26Mrads'42.32.323Simultaneous Simultaneous Simultaneous HASimulation HoneNoneHoneNoteINoneLocation:
Containment El'59',237'gingNANANA'-""Note-1--Containment FloodLevel:withintorusYesAboveFloodLevel:NoSubmergence H/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.Evaluation tobeperformed todetermine ifqualification testingis.required
Facility:
Docket:NineMilePointUnit150"220SYSTEMCOMPONENT EVALUATION WORKSHEET1eif~I1Equipment Description I'Parameter ENVIRONMENT pecification ualification DOCUMENTATION REF.*Specification Qualification Qualification MethodOutstanding
,ItemsSystem:COntainmqnt Isolatson PlantIDNo.:N/AOperating j~TimeI'60Secs**28hrs3~Simultaneous Note1Honecomponent:
Electrical'able
'anufacturer:-
GeneralElectricTemperature (F)Pressure(psia)SEEACCIDENTANDTESTPROFILESPROVIDED2.32.3Simultaneous Note1Simultaneous Note1None.HoneHoNo.:Function:
POWerg,COntrOAccuracy:
Spec:H/ADemon:H/AService:COntainment Isolation RelativeHumiditySprayRadiation 100%NA1.15Nrads100%26Hrads2.3NASimultaneousNote.1Simulation HoneNote2NoneLocation:COntainmentAgingNANA'HA,Note2Containment FloodLevel:withintorusyesAboveFloodLevel:NoeSubmergence N/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.qualified aspartoftheElectrical Penetration AssemblyTests2.Evaluation ofserviceconditions a9in9andsprayisbeingperformed.
- Foraccidentprofilebelow 0