ML18038A176

Forwards Changes to FSAR Sections 9.5.1 & 9A.3 Re Fire Protection Program Carbon Dioxide Sys,For Approval.Changes Remove Commitment to Use CO2 in nonsafety-related Areas.Fsar Will Be Amended in Future.W/Three Oversize Encls

ML18038A176
Person / Time
Site:	Nine Mile Point
Issue date:	06/26/1986
From:	MANGAN C V NIAGARA MOHAWK POWER CORP.
To:	ADENSAM E G Office of Nuclear Reactor Regulation
References
(NMP2L-0758), (NMP2L-758), NUDOCS 8607070388
Download: ML18038A176 (21)

Text

REQULORYINFOR~)1ATIONDISTRIBUTEBYBTEN(RIDB)'CCESSIONNBR:8607070388DQC.DATE:86/06/26NOTARIZED:YEBDOCKET0FACIL:50-410NineNilePointNuclearStation>Unit2>Niagaraaloha05000410AUTH.NANEAUTHORAFFILIATIONNANGAN>C.V.NiagavaNohawl:PowerCovp.RECIPNANERECIPIENTAFFILIATIONADENSAN>E.Q.BllRPvobjectDivectovate3

SUBJECT:

ForwardschangestoFBARSections9.5.18c9A.3v'efivepvotectionpvogv'amcavbondioxidesos>fovapploYal.ChangesvemovecommitmenttouseCQ2innonsafet'-relatedav'eas.FBARwillbeamendedinfuture.lJ/threeoversizeencls.DISTRIBUTIONCODE:B002DCOPIESRECEIVED:LTRENCLSIZE:TITLE:IicensingSubmittal:FireProtectionNOTES:RECIPlENTIDCODE/MANEBWRADTS0/JRPD3PDCQPIEBLTTRENCL11RECIPIENTIDCODE/NANEBWRPD3LAHAUQHEY>N01COPIESLTTRENCL1011INTERNAL:ACRBELD/HDB3100466101ADN/LFNBNRRSTANQ>JRQNi10331EXTERNALLPDRNSIC03051'RCPDR1102TOTALNUNBEROFCOPIESREQUIRED:LTTR20ENCL17 0Sf1il NIAGARAMOHAWKPOWERCORPORATION/300ERIEBOULEVARDWEST,SYRACUSE.N,Y.13202/TELEPHONE(315)474-1511tJune25,1986(NMP2L0758)Ms.ElinorG.Adensam,DirectorBWRProjectDirectorateNo.3U.S.NuclearRegulatoryCommission7920NorfolkAvenueWashington,DC20555

DearMs.Adensam:

Re:NineMilePointUnit2DocketNo.50-410TheNineMilePointUnit2FinalSafetyAnalysisReportdescribestheFireProtectionProgram.CarbondioxidesystemsareinstalledinbothsafetyrelatedandnonsafetyrelatedareasasdescribedinSections9.5.1.and9A.3.CarbondioxidesystemswillcomplywithNFPAStandard12forsafetyrelatedareas.PreoperationaltestingofthefourC02systemsinsafetyrelatedswitchgearroomsiscompleteandaccepted.Thesafetyrelatedroomsarepouredinplaceconcretestructures,whilethenonsafetyrelatedroomsusemasonarywalls.DuringthetestingofC02systemsinthesafetyrelatedareas,asexpected,apositivepressureoccurredintheroomsinordertomeetNFPA12concentrations.Thesepressuresmayexceedthedesignallowablevaluesforthenonsafetyrelatedmasonarywalls.Atthistime,weareevaluatingthesedesigns.TheuseoftheC02systeminthesenonsafetyrelatedareaswillbeunderstrictadministrativecontrolsunderthedirectcontroloftheStationShiftSupervisor.Intheinterim,weplantousebackuphosestreamsandportableextinguishersforprotectionofthesenonsafetyrelatedareas.NiagaraMohawkiscontinuingtopursuearesolution;however,weanticipatethatthedesignsolutioncouldgobeyondfuelload.Baseduponthisschedule,aFinalSafetyAnalysischangetoSections9.5.1and9A.3isprovidedinAttachment1forNuclearRegulatoryCommissionreviewandapproval.ThechangeremovesthecommitmenttouseC02inthenonsafetyrelatedareas,whichisstillconsistentwiththeStandardReviewPlan.Further,thischangedoesnotaffecttheTechnicalSpecifications.8b07070388860Ei261PDRADOCK05000410FPDR

~~r4,~*IIII,tl4~~~I~~4444,I44IrCIIC~'4I Ms.ElinorG.AdensamPage2Assoonasthedesignsolutionisimplementedandtestingcomplete,theFinalSafetyAnalysisReportwillbeamendedtoreflecttheinstallationoftheC02protectionfornonsafetyrelatedareas.Verytrulyyours,C.V.MangaSeniorVicePresidentNLR:ja1737GAttachmentxc:R.A.Gramm,NRCResidentInspectorProjectFile(2) mIIkf'I(fC1L~~

UNITEDSTATESOFAMERICANUCLEARREGULATORYCOMMISSIONIntheMatterofNiagaraMohawkPowerCorporation)(NineMilePointUnit2)DocketNo.50-410AFFIDAVITC.V.Manan,beingdulysworn,statesthatheisSeniorVicePresidentofNiagaraMohawkPowerCorporation;thatheisauthorizedonthepartofsaidCorporationtosignandfilewiththeNuclearRegulatoryCommissionthedocumentsattachedhereto;andthatallsuchdocumentsaretrueandcorrecttothebestofhisknowledge,informationandbelief.Subscribedandsworn'obeforeme,aNotaryPgblicinandfortheStateofNewYorkandCountyofa.,thisg5'ayofC1986.Qlz5isNotaryPublicinandforaCounty,NewYorkyCo"'iIiSlNfkMIIip-'"HohePublicintheStateofHewYorfralifiedinOnondagaCo.No.47876&g.yCommissionExtnreaMarch30,1R!c VdTZN3H)YEN'kgAaYe:Hloei:QoQniaiHrQgdcHVNT8'CDail.o3agabnaa0nlb~l>>lcvgMl,06dowUtouqQo."~u;m:no3yM ATTACHMENT19.5.1.2.9CarbondioxidesystemsareprovidedforCategoryIequipmentroomsandwillcomplywithNFPAStandard12.Thelowpressurecarbondioxidesystemconsistsoftwo13-tonstoragetanks(300psigO'),refrigerationunit,valves,andpipingthatconveysC02tofixednozzlesatindividualhazards.Totalfloodingcarbondioxidesystemsareautomaticallyactuatedbycross-zonedsmokedetectors.Totalfloodingsystemsareprovidedfor:1.StandbyswitchgearroomsAandBandHPCSswitchgearroominthecontrolbuilding.2.600Vswitchgearroominthereactorbuilding.9A.3.6.5C02SuppressionSystems(NFPAStandard12)C02systemsareusedinallsafetyrelatedswitchgearrooms.C02systemscomplywithNFPAStandard12andtherequirementsofBTPCMEB9.5-1,SectionC.G.e.DisarmingofC02suppressionsystemswillcomplywiththerequirementsofBTPCMEB9.5-1,SectionC.2.j.

~1~4I~~~~~I4~

~~NineMilePointUnit2FSARmaximumallowable..Inanycase,cabletraywatersprinkler'ystemsareprovidedfortheseareas.Incalculatingfireloadingforthedieselgeneratorroom,afueloilpiperupturehasbeenassumedwiththeentirecontentsofthefueloildaytankspilledonthefloor.Itwasalsoconsideredthatallofthelubeoilcontainedinthecrankcaseoftheenginewouldleakout.Theseassumptionsresultedinafireloadingof2hr24min,whichisstilllessthanthe3-hrwallsthathavebeen.provided.Automaticpre-actionwatersprinklersystemshavebeenprovidedforthedieselgeneratorbuilding.Thenormalswitchgearbuildingalsohasahighfireloading,butitisJ.essthanthe3-brfirewallsthathavebeenprovide.d.Fireloadingforallotherareasisapproximately2hrorless.Inspiteofthelowfireloading,3-hrfirewallshavebeenprovidedwhereverseparationisrequiredordesirable.9A.3.1.2.5QetailedFireHazardsAnalysisbyBuildingThefollowingsectionsprovidethedetailedfirehazardsanalysisandasummar'yoftheeffectsoffiresinfirezones.Thissummaryshowsthatthefireprotectionsystemwillprovideadequateabilitytodetect,prevent,andsuppresspostulatedfireoutbreaksinandaroundtheplant.9A.3.1.2.5.1StandbyGasTreatmentBuildingIntroductionThestandbygastreatment(SGT)buildingisadjacenttothereactorbuilding.IthousestheSGTSunits,reactorbuildingventilationsupplyunit,andrailroadaccessbay,allofwhichareseparatedfromeachotherby3-hrfirewallsandfloors.ConstructionoftheSGTbuildingisdetailedinSection3.8.4.1.9.Safet-RelatedSstemsTheSGTSunitsaretheonlysafety-relatedequipmentinthisbuilding.Amendment9A.3-8

NineMilePointUnit2FSARDuringnormaloperation,theopeningofoneheatventdoesnotresultinareleaseofradioactivitybecausetheexhaustfanmaintainstheturbinebuildingatanegativepressure.Intheeventofafirewithmultipleoperationoftheheatvents,thedesignobjectivesof10CFR100wouldnotbeexceeded.FireDetectionandSuressionSstemsEachareaoftheturbinebuildingisprotectedbyazoned,earlywarningsmokedetectionsystemarrangedtoalarmlocallyandinthecontrolroom.Automaticwet-pipesprinklersystemsareprovidedforprotectionofgeneralareasatel250ft0inand277ft6in.Asystemofsixautomaticallyoperatedfoamwatersprinklersystems(foaminjectionismanuallycontrolled)coverstheareaundertheturbinegeneratorbelowel306ft0in.Thesesystemswouldlayablanketoffoamonthefloorundertheturbinegeneratoratel277ft6intocoveranyaccumulationofburningorunburnedoilbeingdischargedfromaleakonthemachineandtoflowdownthesidesofthemachine'ndlayablanketoffoaminthecondenserpit,atel239ft4in.Thefoamwatersprinklersystemsutilizeopenfoamwatersprinklerheadsspacedtoachieveareacoverage,andthewaterphaseisactuatedautomaticallybyheatdetectors.Thewatersupplytothesystemsiscontrolledbyautomaticflowcontrolvalves.Thefoamconcentratepumpismanuallystarted.Twoequalcapacityfoampumpsareprovidedforthefoamwatersprinklersystems.Oneisonautomaticstandby.Twofoamconcentratetanksareprovidedforfoamwatersprinkersystemsandfoamhosereels.Toassistmanualfirefightingaroundtheturbinege'nerator,thewaterhosestationsinthevicinityoftheunitareprovidedwithpipedfoamconcentratesothateitherwaterorfoam'streamsareavailableatthesestations.CO<hosereelsarealsoprovided.Carbondioxidetotal-floodingsystemsare,'providedforthealternatorexciterenclosure,andthelubeoilreservoir.ManuallocalapplicationCO<systemsareprovidedforturbinebearingsandturbinelubeoilpiping.ManualwaterAmendment9A.3-15

NineMilePointUnit2CESARManualwaterandCO~hosereelsandportableextinguiehersareprovidedforbackupprotection.Drainsarediscuss'edinSection9A.3.5.1.12.9A.3.1,2.5.9AuxiliaryBoilerBuildingYntroductianTheauxiliaryboilerbuildingisasingle-storystructurewithmetalsidingwalls,I.thousestwoelectricboilerswhichareutilizedduringstartupandshutdown,Ithasnointeriorwallsandcontainsonly5mallamountsofcombustibles,Theventilationsystemconsistsofoutsideaix'ntakelouversandpowerroofexhaustfans.Safet-RelatedEimentTheauxiliaryboilerbuildingdoesnotcontainanysafety-relatedequipment.PostFireAnalsisThereisnoequipmentinthisbuildingrequiredforsafeplantshutdown.RadioactiveReleaseAnalsisAfireintheaukiliaryboilerbuildingwillnotresultinexcessiveleakageofairborneradioactivity;thedesfgnobjectivesof10CFR100wouldnotbeexceeded.PireDetectionandSuressionThebuildingispxotectedbyanearlywaxning,smokedetectionsystemaxxangedtoalarmand..annunciateinthecontrolroom.Sincethefixehazardsanalysisindicatesavexylowquantityofcombustib'lesandsincetheareaiseasilyaccessibleformanualfirefighting,fixedprotectionhasnotbeenprovided.Materhosexeelsandportableextinguishersareprovidedforcompletebuildingcoverage.O'A.322~Ofgty<igloo0~~llf)1%'tIV+~~Sl~

'NineMilePointUnit2FSAR9A.3.7.4PlantComputerRoomTheplantcomputerisnotsafetyrelated;itisnotrequiredtoshutdownthereactororlimitthe~releaseofradioactivitytotheenvironment.Thecomputerroomislocatedwithinthecontrolroompressureboundaryontherelayroomelevation.Thecomputerroomwallshaveglasspanelsandarenotfirerated.Therelayroomelevationofthecontrolroompressureboundaryisseparatedfromallotherareasby3-hrbarriers.Asmokedetectionsystemthatalarmsinthecontrolroomandanautomatictotal-floodingHalonsuppressionsystemhavebeenprovidedinthecomputerroom.ManualCOzandwaterhosereelsandportableextinguishersareavailableforbackup.9A.3.7.5SwitchgearRoomsRoomswithsafetyre'latedswitchgearareprotectedwithautomatictotal-flooding-COzextinguishingsystems.ManualCOzandwaterhosereelsandportableextinguishersareavailableforbackupprotection.Detectionsystemsannunciateinthecontrolroomandalarmlocally,Three-hourwallsseparateswitchgearroomsfromeachotherandfromtheremainderoftheplant.Manuallyactuatedsmokeremovalcapabilityisprovidedfornormalswitchgearbuildingandthecontrolbuildingswitchgearrooms.Forfurtherdetails,refertoSection9.4.Smokeremoval.capabilitywouldbeprovidedthroughtheuseofportablefansifrequiredforotherswitchgearrooms.9A.3.7.6RemoteSafety-RelatedPanelsUnit2hastworemoteshutdownroomsseparatedfromeachotherandotherplantareasby3-hrbarriers.Anautomaticfiredetectionsystemannunciatesinthecontrolroomandalarmslocally.;ManualCOzandwaterhosereelsandportableextinguishershavebeenprovidedoutsidethisroom.9A'.3.7.7Safety-RelatedBatteryRoomsBatteryroomsareseparatedfromeachotherandfromtheremainderoftheplantby3-hrfirewalls,whichareinexcessofthefireloadcalculated=inthefirehazardsanalysis.Allpenetrationshavea3-hrrating.Separateventilationsystemshavebeenprovidedforbatteryroomstolimithydrogenbuildupto2percentmaximum.Fanfailureisannunciatedinthecontrolroom.Rossofflowinitiatestheredundantfanandprintsoutonthecomputer.Amendment9A.3-56 04 NineNilePointVnit2PSARTABLE9A.3-6THNBINEBBILDINGFigureNom9A.3-6FA84PireArea(FA)orPireSubArea(FSA)Number740XLPireZoneEl277r-6<<TurbinebuildingnormalswitchgearroomwestArea1,720safety-RelatedEquipmentinAreaNoneNameNisceguipCabletraysInsul.Insul.70625,346FireHazardCombus-QuantitvtibleLbGalBtu/Lb12,00012,000TotalBtu(thousands'I0,472304152L=-312,624FireLoadingPireBarrier8equired220,3702.3hrDetectionSvstemSmokedetectionCrerSzonedExtinguishingSystem9A.3-6FA83726XLEl277'-6>>Turbinebuildingnormalswitchgearroomeast2,300NoneNiscequipNotorcontcolcentersCabletraysInsul.Fiber.Insul.97940248,01012,00010,00012,00011,7407,236576120595,104258,7403.2hrSmokedetectionccoss-zoned9A3-6FA50725NZEl288'-6>>Ventilationcoom5,160NoneBiseequipMotorsl'ablelray"Insu1.Insul.lnsul..1563610,45712,00010,00012,0001,072360125rl04L.127,71624,75219minSmokodetectiqn,9A.3-6FA509A.3-6FA509A.3-6FA50722NZ721NZ723HZ(A)724HZ(8)725NZ(C)El277'-6>>Condensatedemin-eralizerEl280'-6<<Off-gasroomEl277r-6>>HeaterbayAroom(similarforheaterhays8andC)2,345None4,0504,0504050Ncne4,840NoneNotorsCabletraysNotorsBiseequipCabletraysNotocsCabletraysInsul.Insul.Insul.Insul.Insul.Insul.Insul.726,37232085r06214,15210,00012,00010,00012,00012,00010,00012,000302,4966074463,270104982449,03472076464L-77,10415,94712min26,90020min12,3QQ10minSmokedetectionsmokedetoctionsmokedetection1of5 NineNilePointUnit2PSARTABLE9A.3-9(Cont)FigureNo.FireArea(Fh)orFireSubbrea(FSAB)PireZoneAreaNameSafety-BelatedEquipmentinArea<<vNameCombus-tibleFireHazardOuantitvLbGalBtu/LbTotalBtus(thousands'IFireLoadingfB~tuftvLFireBarrierBequiredDetectionSystemErtingujshingSvstem9A.3-7PA59951NMEl309'-0"6,535Truckloading6MSSstorageNoneMotorsInsul.1010,00010015NegligibleSmokedetectionAutomaticsprinklersystem9A.3-5PA70905NMEl261'uDeconarea6dirtyvorkshop4,750NoneMotorsInsul.10,000204NegligibleSmokedetectionAutomaticsprinklersystem9A.3-6PA70395XLEl279'-0"Radvastesvitch-gearroom2,250NoneCablesInsul.843612,0001012324499234minSmokedetection9A.3-6PA70390XG8El279~-Ou907NZBadvastecontrolroomand2,500NoneCablesInsul.1035012,0001242004968038minSmokeTotalfloodlnndetectionUnion9A.3-7FA70903NZEl306'OuDeconbldgHVACequipmentroom4,750NoneMiscequipInsul.2110,000210NegligibleSmokedetection9A.3-6PA58904NZEl287'uLMSevaporators650NoneNocombus-tiblesSmokedetection)TI5LPERmaZ,CABDAmendment3of3 NineNilePointUnit2FSARTABLE9A.3-10NORNALSMITCHGEARBUILDINGFigureNo.9A.3-4FA51PireArea(PA)orPireSubAreagFSA)NumberPireZoneAreaName601XLEl237',715GeneralareavestSafety-BelatedEquipmentinAreaNoneNameNisc.equip.CabletraysCombus-tibleInsul.Insul.FireHazardOuantitvLhGal79724,281Btu/Lb12,00012,000TotalBtutthousandsl9,564291372L300,936110,842FireLoadinggBt~uft~zPireBarrierRequiredfhrgmin1.4hpDetectionSystemSmokedetectioncross-zonedExtinguishingSstemI9A3-4PA529A-3-4FA53603NZEl237'-0<<1Abatteryroom830.None602XLEl23710<<4,590NoneGeneralareaeastCabletraysNisc.equip.NotorsBatteriesCabletraysInsul.Insul.Insul.StyreneInsul.39,83834171,9644,77312,00012,00012,00018,00012,000478,0564,09270482,21835,3525727692,628105,060111,6001.3hr1.4hrSmokedetectioncross-zonedSmokedetection9A3-4FA53603NZEl237'-0<<18batteryroom830NoneBatteriesCabletraysStyreneInsul.1,9645,86718,00012,00035,35270404-L105,756127,4201.6hrSmokedetection9A.3-4FA53603NZEl23710<<Room4A220NoneCabletraysInsul.1,73612,00020,83294,6951.2hrSmokedetectxon9A.3-4FA539A35PA789A.3-5PA79603NZEl237'-0<<Room4B220None613XLEl261'-0<<4,590NoneGeneralareaeast612XLEl261'-0<<4,820NoneGeneralareavestCabletraysBise.equip.CabletraysNotorcontrolcentersBise.equip.NotcrcontrolcentersCabletraysInsul.Insul.Insul.Piher.Insul.Fiber.Insul.1,7366,52258,8702334,31529758,05312,00012,000782,264706,44018,000194L788,89812,00051,78018,00012,0005,346696636753,76212,00020,83294,6951.2hr163,6752.1hr164,2202.1hrSaokedetectionSmokedetectioncross-zonedSmokedetectioncross-zonedTotalfloodingCOzTotalflooding~COxAmendment1of2~gg-c33