ML17301A019
| ML17301A019 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 02/09/1983 |
| From: | UHRIG R E FLORIDA POWER & LIGHT CO. |
| To: | EISENHUT D G Office of Nuclear Reactor Regulation |
| References | |
| L-83-65, NUDOCS 8302150706 | |
| Download: ML17301A019 (22) | |
Text
DOCKET¹05000389REGULATORY FORMATIONDISTRIBUTION SYS(RIDS)"JCq.9.AOCESSION
/BR:6302150706 DOCiDATEs 83/02/M,NOTARIZED:
NOFACIE:5W-'$89 St.LuciePlant~UniIt'2iFloridaPowerLLightCo.AUTH~NAMEAUTHORAFFILIATIONUHRIGpR~E~FloridaPower8Li'ghtCo,RECIP.NAMERECIPIENTAFFILIATION
-EISENHUTiD<G
~Divisionof.Licensing p~W/~~~
SUBJECT:
Forwardsrev'isedfireprotection syscommitment schedueLresponses ItoNRCIrequests
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f~POX14000,JUNOBEACH,FL33408ill//o6-FLORIDAPOWER8(LIGHTCOMPANYFebruary9,1983L-83-65OfficeofNuclearReactorRegulations Attention:
Mr.DarrellG.Eisenhut, DirectorDivisionofLicensing U.S.NuclearRegulatory Commission Washington, D.C.20555
DearMr.Eisenhut:
Re:St.LucieUnitNo.2DocketNo.50-389FireProtection SystemSchedule/
-ResonsesOnOctober8,1982,FloridaPower8LightCo.submitted alistofengineering andconstruction tasksthatwerenotexpectedtobecompleted bycoreloadbutwouldbecompleted bytheendoffirstrefueling.
ThelistincludedseveralportionsoftheFireProtection System.Theinformation contained inAttachment 1supercedes thepreviousFireProtection systemcommitment scheduleandprovidesourbestestimateofcompletion forallFireProtection systemtasks.InadditionduringrecentmeetingsbetweenFPSLandNRC,severalissueswereraisedforwhichresponses wererequested.
Attachments 2through6areprovidedinordertorespond.tothoserequests.
Ifyouhaveanyquestions regarding anyoftheattachments, pleasecontactus.Verytrulyyours,RobertE.UhrigVicePresident AdvancedSystemsandTechnology REU/RJS/PPC/Alp Attachment cc:J.P.O'Reilly, RegionIIHaroldF.Reis,Esquire8302i5070h 830209PDRADQCK05000389PDRPEOPLE...
SERVINGPEOPLE
~I1 INDEXOFATTACHMENTS 1)FireProtection SystemSchedule2)QA/QCrequirements forPhaseIRABSprinkler-SystemandFireProtection Seals,3)Justification forinterimoperation withnon-seismic RABsprinkler systems4)FireProtection InterimTechnical Specification 5)SourceRangeNuclearInstrumentation 6)Containment FlameInpingement Shields ATTACHMENT 1FIREPROTECTION SYSTEMSCHEDULETheattachedschedules provideFP&L'sbestestimateofcompletion ofengineering andconstruction fortheSt.LucieUnit/!2FireProtection System.Thisschedule'upercedes thatwhichwassubmitted byFPLletterL-82-434datedOctober8,1982 tI~'At~ATTACHMENT 2A/CREUIREMENTS Thisattachment providesabriefdescription oftheQualityAssurance programthatwillbeimplemented ontheSt.LucieUnit2PhaseIsprinkler systemandfireprotection seals.Withtheexception ofthePhaseIsprinkler systemandthefireprotection seals,FP&Lwillimplement SQP-99"FireProtection Systems".
Thequalityassurance programforthePhaseIsprinkler systemandthefireprotection sealswillutlizevendors'A manuals.ThesemanualshavebeencomparedtoFP&L'sSQP-99andhavebeenjudgedtosatisfactorily implement allthequalityassurance requirements setforthinthisSiteQualityProcedure.
OncethePhaseIsprinkler systemisinstalled andPhaseII(Expansion Anchor)installation begins,SQP-99willreplacethevendor'sQAmanual.TheaboveQualityAssurance programwillensurethatthePhaseIsprinkler systemwillbeinstalled pertherequirements ofNFPA13.
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~~ATTACHMENT 3JUSTIFICATION FORINTERIMOPERATION WITHNON-SEISMIC RABSPRINKLER SYSTEMSFiresuppression systemsarebeinginstalled intheRABtomeetAppendixRIII.G.2requirements regarding separation/enclosure ofcablesandequipment insafeshutdownareas.Agreements astothelocationofthesesprinkler systemswerefinalized inthesecondquarterof1982.Althoughdesign,procurement andinstallation ofthesesystemsisbeingaccomplished onanaccelerated
- schedule, detailedinstallation schedules havebeenthesubjectofseveraldiscussions withNRCinlate1982andearly1983.OnJanuary27,1983,FP&LandNRCagreedthatinstallation ofthesprinkler systemswouldproceedsuchthatalloperablesprinklers areinplace..priorto achieving fivepercentpower;althoughinstallation oftheseismicsupportandrestraints willbeinitiated assoonasdesigns/fabrications arecomplete.
Thefinalseismicrestraints willbecompleted bythirdquarter1983(October, 1983forelevation 28.5').Justification foroperation pendingcompletion ofseismically restraining theseoperablesprinkler systemsisgivenbelow:1Thestrongest earthquake feltintheStateofFloridaduringthe200yearsofhistoricrecordwasthe1886Charleston, SouthCarolinaearth-quake,centeredabout380milestothenorth.Itwasprobablyfeltatthesiteasanintensity IV-VModifiedMercalli(MM)event.Analysestodetermine themaximumsurfaceacceleration resulting fromanintensity VIMMearthquake occurring adjacenttothesiteresultedinaconservative valueof0.05g.IdeallythiswouldbethemaximumSafeShutdownEarth-quake(SSE)surfaceacceleration definedfortheSt.Luciesite(sincenoneofthethreeconditions relatingtoselection oftheSSE,per10CFR100AppendixASectionV.(a)(1)(i)-(iii),areconsidered applicable; seeFSARSubsection 2.5.2).However,theNRCStandardReviewPlan,Section2.5.2,statesthattheSSEseismicdesignacceleration shouldbeat,leastasconservative asthe1975TrifunacandBradymeanrelationship; valuesof0.084gforintensity VIandabout0.09gforthetrendofthemeandefinedbyintensities IV-VIIresult.Furthermore, 10CFR100AppendixA,SectionV(a)(1)(v)requiresthat0.10gacceleration beassumedasaminimum.ThusbyedicttheSt.LucieSSEisdefinedas0.10g.Since10CFR100SectionV(a)(2)requiresthattheOperating BasisEarthquake (OBE)benolessthanonehalftheSSE,;theSt.LucieOBEisdefinedagainbyfiatas0.05g.Theannualprobability foraseismiceventgreaterthanorequalto0.05g(recallthatthisshouldhavebeenanSSEacceleration)was computedandtheanalysesindicatethattheprobability ofoccurrence ofthiseventisonceper3,000years.
ATTACHMENT 3(COND')AsshownenFSARFigure2.5-31andCESARTable2.5-2,earthquakes inFloridahavebeeninfrequent, oflowtomoderateintensity (III-VIMM),andhaveepicenters atleast100milesfromthesite.Severalsmallearth-quakeshavebeenfeltinthevicinityofGreenCoveSprings,locatednearJacksonville, morethan180milesnorthofthesite.Theotherminorearthquakes withinthestatehave'eenrandomlyscattered andthereisnoevidencethatanyarerelatedtoobservedstructural features.
FSARTable2.5-3indicates theinsignifiance ofI-VIMMearthquakes.
TheUniformBuildingCode(theUSEdition,Volume1,asapprovedbytheInternational Conference ofBuildingOfficials) designates thesitevicinityasZone0onthemapentitled, "MapoftheUnitedStatesShowingZonesofApproximate EqualSeismicProbability."
TheUSCoastandGeodeticSurveyindicates Zone0asanareaofnoearthquake damage.HadlyandDevine(FSARSection2.5,Reference 49)alsoplacethisportionofFloridainazonewheretheseismicfrequency approaches zero.Furthermore, anexamination oftheepicentral map(FSARFigures2.5-31and2.5-32)showsabroadsegmentofsouthcentralFloridainwhichpossibleepicenters areentirelyabsent.TheSt.Luciesiteisinthemiddleofthisregion.Geologicconditions ofthesiteandsurrounding area,geologicstructure andhypothesized faultingintheregion,asdiscussed inFSARSubsection 2.5.1,indicatethatnoseismic-generative faultsexistwithin200milesofthesite.Basedontheabove,plustheshortdurationwhenthesprinkler systemsarebeingseismically restrained andsupported, itisbelievedthattheoccurrence ofanearthquake whichcouldpotentially damagethesprinkler systemsintheRABisextremlyunlikely, andtheoccurrence ofanearth-quakeoflesserintensity isnotlikelytoaffectanySt.Luciebuildings orsystemsregardless oftheirseismicclassification.
ATTACHMENT 4FIREPROTECTION/TECHNICAL SPECIFICATIONS FP&Liscommitted tohaveallsprinkler systemsandfireratedassemblies installed, operational andunderTechnical Specifications by5%power.Priorto5%power,FP&Lwillcomplywiththefollowing:
I.SPRINKLER SYSTEMSA.LIMITINGCONDITION FOROPERATION 1.Thefollowing sprinkler systemsshallbeOPERABLE:
a.FireZone19-RAB.EastHallwayandMiscellaneous Equipment Areasb.FireZone20-RABEast-West CommonHallwayc.FireZone22-RABElectrical Penetration Aread.FireZone23-RABElectrical Penetration Areae.FireZone34-ZONF.I-RABElectrical Equipment Roomf.FireZone39-RABHVACEquipment Roomg.FireZone51-RABCeilingandHallways2.APPLICABILITY:
Wheneverequipment protected bythesprinkler systemisrequiedtobeOPERABLE.
3.ACTION:Withoneormoreoftheaboverequiredsprinkler systemsinoperable,,
with1hourestablish acontinuous firewatchwithbackupfiresuppression requiredforsafeshutdowncouldbedamaged;forotherareas,establish anhourlyfirewatchpatrol.B.SURVEILLANCE REUIREMENTS l.Eachoftheaboverequiredsprinkler systemsshallbedemonstrated OPERABLE:
a.Atleastonceper31daysbyverifying thateachvalve(manual,power-operated orautomatic) intheflowpathisinitscorrectposition.
b.Atleastonceper12monthsbycyclingeachtestablevalveintheflowpaththroughatleastonecompletecycleoffulltravel.c.Atleastonceper18months:
I~~ll~WI~ATTACHMENT,.
'4-(COND'T)1)Byperforming asystemfunctional testwhichincludessimulated automatic actuation ofthe*system, anda)Verifying thattheautomatic valvesintheflowpathactuatetotheircorrectpositions onathermaltestsignal,andb)Cyclingeachvalveintheflowpaththatisnottestableduringplantoperation throughatleastonecompletecycleoffulltravel.2)Byavisualinspection ofeachsprinkler systemtoverifytheirintegrity, and3)Byavisualinspection ofeachsprinkler sprayareatoverifythespraypatternisnotobstructed.
IIFIRERATEDASSEMBLIES A)LIMITINGCONDITION FOROPERATION 1)Allfireratedassemblies (walls,floor/ceilings, andotherfirebarriers) separating safety-related fireareasorseparating portionsofredunantsystemsimportant tosafeshutdownwithinafireareaandallsealingdevicesinfireratedassemblypenetrations (firedoors,firedampers,cable,piping,andventilation ductpenetration seals)shallbeOPERABLE.
2)APPLICABILITY:
Atalltimes3)ACTION:Withoneormoreoftheaboverequiredfireratedassemblies and/orsealingdevicesinoperable, within1houreitherestablish acontinuous firewatchonatleastonesideoftheaffectedassembly, orverifytheOPERABILITY ofthefiredetectors onatleastonesideoftheinoperable assemblyandestablish anhourlyfirewatchpatrol.B)SURVEILLANCE REUIREMENTS 1)Atleastonceper18monthstheaboverequiredfireratedassemblies andpenetration sealingdevicesshallbeverifiedOPERABLEby:a.Performing avisualinspection oftheexposedsurfacesofeachfireratedassembly.
b.Performing avisualinspection ofeachfiredamperandassociated hardware.
AT'ZACHMENT 4~(CONT')c.Performing avisualinspection ofatleast10%ofeachtypeofsealedpenetration.
Xfapparentchangesinappearance orabnormaldegradations arefound,avisualinspection ofanadditional 10%ofeachtypeofsealedpenetration shallbemade.Thisinspection processshallcontinueuntila10%samplewithnoapparentchangesinappearance"'or abnormaldegradation isfound.Samplesshallbeselectedsuchthateachpenetration sealwillbeinspected every15years.2)EachoftheaboverequiredfiredoorsshallbeverifiedOPERABLEbyinspecting theautomatic hold-open, releaseandclosingmechanism andlatchesatleastonceper6months,andbyverifying:
a.Thateachunlockedfiredoorwithoutelectrical supervision isclosedatleastonceper24hours.b.Thatdoorswithautomatic hold-open andreleasemechanisms arefreeofobstructions atleastonceper24hours.c.Thateachlockedclosedfiredoorisclosedatleastonceper7days.3)Atleastonceper18months,performafunctional testofeachautomatic hold-open andreleasemechanism.
ATTACHMENT 5SOURCERANGENUCLEARINSTRUMENTATION AsaresultofameetingbetweenNRCandFP&LonOctober21,1982regarding fireprotection, FP&Linformally commitedtoprovideremotesourcerangenuclearinstrumentation existingattheHotShutdownPanelindependent ofthecontrolroom.Thisattachment iswritteninordertoformallycommittothismodification.
Themodification willbecompleted beforetheendofthefirstrefueling.
~J~~~l ATTACEKNT 6CONTAINMENT FLAMEIMPINGEMENT SHIELDSFP&Lcommitted toinstallflameimpingement shieldsbeneaththelowest~cabletrayineachstackcontaining safeshutdowncableinthecontainment building.
Thiscommitment wasagreeduponlateinthereviewprocess,andcannotbefulfilled untilthefirstrefueling outage.Thereasonsfor,thisscheduleinvolvesthetimetodetermine layouts,engineering designdetails,verification andqualityassurance ofseismically analyzeddesign.Ju'stification foroperation intheinterimperiodbeforethisworktaskiscompleted isasfollows:1)AnewReactorCoolingPumpOilCollection Systemisbeingprovidedtocollectpressurized andunpressurized leaksfromeachoftheReactorCoolantPumpLubeOilSystems.Thisinstallation willconfinethemajorportionofcombustible inventory toaseparateoilcollection tankinaccordance withAppendixR.,SectionIII-0Theremaining combustible loadinginthefireareaislight.2)Firedetection isprovidedatvariouskeylocations ofconsequence.
3)Hosestationsarestrategically locatedinContainment, withwatersourcebeingtheexistingprimarywatertankandpiping.4)Redundant safety-related equipment isprotected fromexposuretolocalized combustible sourcesbyspatialseparation and/ortheuseofexistingbarriers/partitions (i.e.concretewalls,floorsandceilings) havinggreaterthanthreehoursfireresistive rating.Separation ofelectriccircuitsinFireArea"K"meetstherequirements ofRG1.75Rev1.Separation isprovidedtomaintainindependence ofelectrical circuitsandequipment sothattheprotective functionrequiredduringanydesignbasiseventcanbeaccomplished.
Thedegreeandmethodofseparation varieswiththepotential hazardsinaparticular area.Thisisaccomplished byuseofspatialseparation,
- barriers, andradiantenergyshieldswhererequired.
5)Electrical cablesareconcentrated atthePenetration AreasofZoneIatEl*23.00ft.betweenColumnLines6and8andadjacentZoneIII.Thecablestraysareimmediately separated uponenteringZoneIIandroutedtotheseveralitemsofequipment.
~~/I Radiantenergyshieldsarebeingprovidedbetweensafety-related AandBcabletraysinthecablepenetation areatoprovideseparation.
6)Vericalcabletrayrunsarebeingprovidedwithfirestopsinstalled every20feetalongtheverticalrise.7)FireArea"K"isahighradiation areaandpersonnel accessislimited.thusminimizing theprobability ofintroducing transient combustibles.
8)Thelargefreevolume(2.5millioncubicfeet)ofFireArea"K'llowsfordissipation ofhotoff-gastemperatures andreducestheeffectofstratified hotgasesatessential components.
9)Allredundant cabletrayscontaining safeshutdowncableswillbeprotected byhorizontal flameiihpfngement shieldslocatedbelowthelowesttrayineachstock,'whentwenty(20)footseparation criteriaisnotmet.Theflameimpingement shieldwidthshallbe13inchesorthewidthofthecabletray,whichever islarger.(Notethatcabletrayseparation attheminimumis7feet).10)Allconduitcontaining safeshutdowncableswhichcrosswithintwentyfeetofacabletraycontaining, redundant cablewillbeprotected witha1hourwrap.Thewra'pwillextend2feetbeyondbothsidesofthecabletray.ll)Allinstrument cable.traysare-covered.
12)Allcableincontainment isIEEE-3831974qualified.
13)Allcabletraysareofthesolidbottomtype.
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