ML17326B145

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Suppl 2 to App R Evaluation of Auxiliary Bldg HVAC Duct Penetration & Containment Seismic Gaps.
ML17326B145
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Issue date: 08/31/1984
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UNITEDSTATESNUCLEARREGULATORYCOMMISSION DOCKETNO.50-315DOCKETNO.50-316SUPPLEMENT TWO10CFR50,APPENDIXR,SECTIONIIICUNITS18r2.lNjDIANA8r.MICHIGANELECYRICCOMPANYAMERICANELECTRICPOWERSYSTEMAUGUSTt984.0-8408i70327 8408i3'DR ADOCK050003i5FPDR PLEASENOTE:Thehand-written information inthisreportwasinadvertently leftoutofthefinalcopyofthereportsuppliedtousbyourconsultant.

Itwillbeincludedinallfuturecopies.

HVACDUCTPENETRATION ANALYSIS APPENVDIX REVALUATION OFAUXILIARY BUILDINGHVACDUCTPENETRATIONS ANDCONTAINMENT SEISMICGAPSFORTHEDONALDC.COOKNUCLEARPlANT1.0Introduction InMarch1983,areportentitled"Safe-Shutdown Capability Assessment andProposedModifications" wasissuedfortheDonaldC.CookNuclearPlant,Units1and2.Thereportidentified thesafeshutdownsystemrequirements relativetothefireprotection guidelines of10CFR50AppendixR.Asaresultofthecontinuing fireprotection programupgradeandmodification implementation program,IndianaandMichiganElectricCompanyidentified thefollowing areasofconcernwithrespecttoAppendixRconformance attheD.C.CookNuclearPlant:1.Twenty-two ventilation ductpenetrations passthroughfireareafloors/ceilings atvariouselevations andarenotsuppliedwi'thfiredampers.2.Thefirezones/areas adjacenttotheContainment Buildinghaveseismicgapswhichseparatethefloors,ceilingsandwallsofthesezones/areas fromtheContainment Building.

Eachoftheseconcernshasbeenevaluated separately todetermine theirimpactontheplantsafeshutdowncapability intheeventofafire.Theanalysisaddresses thefollowing:

1.Locationofsafeshutdowncomponents andcircuits.

2.Methodofsafeshutdowncompliance usedinazone/area ofconcern.3.Existingandproposedfireprotection capabilities.

4.Combustible loadingofthezone/area ofconcern.Page1 TheMarch1983submittal willbetheprimarysourceofinformation withmoredetaileddatasuppliedasitrelatestospecificzones/areas.

Thisanalysisincludesattachedfiguresandtablestoprovideabetterunderstanding ofspecificconcerns.

Eachconcernwillhaveamethodology, evaluation andconclusion section.2e0Ventilation DuctEvaluation Methodolo Thisanalysishasbeencompleted toprovidetechnical justification fornotinstalling firedampersintheventilation systemductpenetrations whichcommunicate betweenfireareasvertically fromelevation toelevation.

Theventilation ductsassociated withthe22penetrations werelocatedonHVACdrawingsshowingtheentireflowpathofeachduct.Penetrations intozones/areas equippedwithratedfiredamperswereeliminated andwhatremainedisdepictedonFigures1through8attached.

Theregisters intheremaining ductswerelocatedwiththedirection ofthearrowsoneachdefiningwhetheritis~~(~)or(g+).Eachfigurerepresents theelevationaoftheAuxiliary Buildingshowingbothunits.Thecirclednumbersonthefiguresrepresent firezones/areas foundandthenumbersnexttothearrowsindicatetheregisternumberfoundincorresponding I'ables1through6.Onlythefirezones/areas containing theductingofconcernarerepresented onthefigures.Thefiguresareletter-coded toidentifythefireareainvolvedanddefinedattheboundaries withtheuniquemarkings.

ForPage2 detailedboundaries ofeachfireareaorzoneandspecificheSection2F~res2.1Thefiguresaremeantorregisterinafiregeneralarrangement

drawings, refertotPthrough2.11oftheMarch1983submittal.

toindicatethepresenceoftheductzone/area andnottoprovidespecificlocations

'ithinthezone/area.

Tables1through6identifythespecificAmericanElectricPowerServiceCorporation HVACdrawingnumberandthedrawingcoordinates tolocatetheregisters.

The22ductpenetrations andassociated registers wereevaluated individually asdepictedonthefigures.Theregisters withinazone/area wereevaluated withrespecttosafeshutdowncomponent andcircuitlocations.

TheMarch,1983submittal considered firedamagetosafeshutdownsystems,components andcircuitswithinareasandzones.Thissameinformation willbeutilizedasappropriate toresolveissuesarisingfromtheregisterlocations withinafirezone/area.

Thegeneralapproachwasto1)considertheeffectonSectionIII.G.2compliance, i.e.,evaluatethedamagetoredundant safeshutdownequipment and/orcircuits, and2)considertheeffectonSectionIII.G.3,i.e.,evaluatedamagetoalternate shutdownequipment and/orcircuits.

Thus,whereanindividual ductcommunicated withdifferent zonesorareas,theductpenetrations andregisters wereevaluated todetermine theimpactonthetwocasesjustdescribed.

Bothcasesconsiderarea/zone communication betweenelevations andatthefirearea/zone boundaries wheretheductPage3 penetration wasnotprovidedwithafiredamper.Theimpactofductsandregisters onsafeshutdownalsoconsiders thelocationofsuppression anddetection systems,theamountofcombustible materialinthezone/area, andparticularly theprovidedmethodofsafeshutdownasdescribed intheMarch1983submittal.

Thestairways communicating betweenelevations havebeenprovidedwithautomatic suppression systemstomaintainelevations asseparatefireareas.Themechanical andelectrical ceiling/floor penetrations arebeingprovidedwithsealsinaccordance withtheMarch1983submittal.

Thecombustible loadingvaluesandsurfaceareaspresented aregivenfortheentirefirearea.Plantwalkdowns havebeenperformed andphysicalracewaylocationdrawingshavebeenevaluated todetermine thatthecombustible loadinginthefireareasevaluated isuniformly distributed throughthearea.Fireareascontaining concentrated combustibles willbe,specifically discussed intheevaluation ofthearea.2.1Evaluation ofFiure1Theexhaustductrepresented onthisfigureisdesignedtoremovewarmairfromvariousareasofUnit1anddischarges totheairshaftatthenorthendofFireZone44.Thisfigureshowstwoductpenetrations (30"x26"and72"x30").

Thefollowing summarytablesprovidethefireprotection featuresandsafeshutdowncompliance methodsforthezones/areas ofconcern.Page4 oFireprotection featuresFireArea/Zone Detection Ionization Detectors Suppression IAutomatic Suppressionl SysteminStairwayonly6NIonization Detectors Automatic Preaction Sprinkler Ionization Detectors Aut'omatic Preaction ISprinkierII44NISprinkierIIIonization Detectors Automatic Preaction IoSafeshutdowncompliance methodsFireArea/Zone Compliance MethodsCablesrequiredforsafeshutdownarebeingprovidedwithfirewrapping.

6MOnedivisionofredundant safeshutdowncablesforeachunitisbeingprovidedwithfirewrapping.

6NModifications arebeingimplemented toprovidealternative shutdowncapability.

44NModifications arebe,ingimplemented toIprovidealternative shutdowncapability, IPage5 AsshovninFigure1,theairshaftextendsuptothe633ftelevation wheretheexhaustfans,creatinganegativepressureintheairshaft,expelthewarmairtotheatmosphere.

FireZone1,onthe573ftelevation, isaportionofFireAreaAvhichalsocontainsfirezones1AthroughlH.Thesafeshutdovncomponents withinthisarea(RHRpumpsandassociated cables)willbeprotected fromfireasdefinedintheMarch,1983submittal.

Theventilation ductregisters inthisarea,asshovnonFigure1,arelocatedwithinthenorthsectionofFireZone1,vhichonlycontainsRHRpumpcables.ThecablesvithinFireZone1requiredforsafeshutdovn(RHRpumppowercables)arebeingprovidedvithfirevrappingandthusvouldnotbeaffectedbyhotgasesorcombustion productsfromtheventilation registers inthisfirezone.Inaddition, thefireareahasaverylowcombustible loading(2666BTU/ft)withanequivalent fireseverityoftwominutes.Theareaalsocontainsautomatic detection vithineachfir'ezone.Themechanical andelectrical penetrations throughtheceilingtothe587ftelevation aresealedincluding the30"x26"ventilation ductexitingFireZone1intoFireZone6N.FireZone6Ncontainstheductpenetrating frombelowasshovninFigure1.FireZoneGNonthe587ftelevation isaportionofFireAreaB,whichalsocontainsFireZones6M,6S,5,64A,64B,65Aand65B.FireZone6Ncontainsmotorcontrolcentersasveilasvariousredundant safeshutdovnsystemPage6 component cablesforUnitl.However,FireZone6N,asdescribed intheMarch1983submittal, willbeprovidedwithalternate shutdowncapability.

Thezoneisalsoequipoedwithautomatic suppression anddetection (enhanced sinceMarch1983submittal).

FireAreaBhasaverylowcombustible loading(9331BTU/ft)withanequivalent fireseverityofsevenminutes.Theautomatic suppression systemforFireAreaBcontainsapproximately 168sprinkler headswhichprovidecoverageforapproximately 23,6004ft.Fiveofthesprinkler headsarelocatedwithinatenfootcylindrical radiusoftheductpenetration throughthefloorandadditional sprinklers arelocatedinthevicinityoftheregisters andremaining ductwork.Thefireareaalsocontainsapproximately 36ionization typedetectors.

Theregisters intheareawiththeexception ofregister5arealllocatedinthenorthsection(FireZone6N).Register5islocatedinfireZone6Mwhichcontainsredundant safeshutdowncircuitsandwhichhavebeenprovidedwithfirewrappingprotection ofoneredundant divisionforeachunitasdescribed intheMarch1983submittal.

FireZone6Misalsoprovidedwithautomatic suppression anddetection.

Thesesystemsinconcertwithinstalled firewrappingprovideadequateprotection fromhotgasesandcombustion productspotentially transmitted throughtheventilation system.FireZone6Nisprovidedwithsealsinthemechanical andelectrical ceilingpenetrations tothe609ftelevation, including theventilation ductexitingintoFireZone44N.Page7 FireZone44N,locatedonthe609ftelevation, isapartoftheFireAreaC,whichalsocontainsFireZones44S,44Athrough44H,and37.FireZone44Ncontainsmotorcontrolcentersandvariousredundant cablesofsystemsrequiredforsafeshutdown.

Asindicated onFigurel,alltheregisters arelocatedinthenorthend.Thelargeduct(72"x30")

penetrating thefloorfromthe587ftelevation hassevensprinkler headsatthe609ftelevation withinatenfootcylindrical radiusofthepenetration.

Intotal,FireAreaCcontainsapproximately 240sprinkler headscoveringanareaofapproximately 20,000ftTheareaalsocontainsapproximately 30ionization typedetectors.

Adequatecoveragefortheductandtheregisters isprovidedbythesefireprotection devicestoensureadequateprotection fromhotgasesandcombustible productspotentially transmitted throughtheventilation system.Inaddition, FireZone44Nwillbeprovidedwithalternate shutdowncapability.

Asindicated inTable5-2inSection5oftheMarchl983submittal, bothFireZones6Nand44Nhavethesamesystemsandcomponents potentially affected.

Thusthecommunication ofthetwozonesdoesnotaffectthecompliance strategynorthesafeshutdownFi'~<~~<<CA~~g~~/u~~~gas).g/p

'capability.

~<~>>>>~~~~/p~)cuac,~Q~seuenrg~opsia~i~uP~m2..2Evaluation ofFiure2Figure2hasasimilarductconfiguration asFigurel,butrepresents Unit2.Thisfigurerepresents twoductpenetrations (25"x28"and36"x24").

Thefollowing summarytablesprovidethefireprotection featuresandsafeshutdowncompliance methodsforthezones/areas ofconcern.Page8 oFireprotection featuresIIFireArea/Zone IDetection Ionization Detectors Suppression IAutomatic Suppressionl intheStairwayonly6SIonization Detectors Automatic Preaction Sprinkler 6MIonization Detect'ors Automatic Preaction Sprinkler Ionization Detectors Automatic Preaction ISprinkler IoSafeshutdowncompliance methodsFireArea/Zone Compliance MethodsCablesrequiredforsafeshutdownarebeingprovidedwithEirewrapping.

Modifications arebeingimplemented toprovidealternative shutdowncapability.

6MOnedivisionofredundant safeshutdowncablesforeachunitisbeingprovidedwithfirewrapping.

44SModifications arebeingimplemented toIprovidealternative shutdowncapability.

IPage9 Thefirezonesarelocatedwithinthefireareaspreviously described intheFigure1evaluation, socombustible loadingsandfireseverities arethesame.The573ftelevation isthesameastheUnit1side,including thecableandcomponent configuration.

TheHVACsystemconfiguration onthe587ftelevation issimilartoUnit1.FireZone6Swillbeprovidedwithalternate shutdowncapability andcompliance inFireZone6Misdescribed intheFigure1evaluation.

Thepenetration throughthefloortothe587ftelevation withinFireZone6Shasonesprinkler headtoprovidewatersuppression intheimmediate vicinityoftheverticalrun.Thepenetration areaofthe36"x24"ductisprotected byfoursprinkler headsinFireZone44Swithinatenfootcylindricalradiusoftheducttopreventductrelatedfiredamage.Also,FireZone44Swillbeprovidedwithalternate shutdowncapability withtheexception ofthecomponent coolingwaterpumpswhich,asdescribed intheMarch1983submittal, areprotected toensuretheavailability ofatleasttwoCCWpumpsforsafeshutdown.

2.3Evaluation ofFiure3Figure3hasasimilarfigurerepresents asingleconfiguration asFigure2,butthisductwithtwopenetrations (each44"x24").

Thefollowing summarytablesprovidethefireprotection featuresandsafeshutdowncompliance methodsforthezones/areas ofconcern.Page10 oFireprotection featuresFireArea/Zone Detection Suppression Ionization Detectors Automatic Preaction Sprinkler 44SIonization Detectors Automatic Preaction Sprinkler 52Ionization D'etectors IAutomatic Preaction Il"Sprinkler IIIoSafeshutdowncompliance methodsFireArea/Zone Compliance Methods6SModifications arebeingimplemented toprovidealternative shutdowncapability.

Modifications arebeingimplemented toprovidealternative shutdowncapability.

52Modifications arebeingimplemented toprovidealternative shutdowncapability.

ITheductispartofthesupplyventilation systemcomingfromthe633ftelevation downtothe587ftelevation.

Asindicated onFigure3,oneregisterisonthe587ftelevation inFireZone6S.Theshutdownmethod,fireprotection featuresandcombustible loadingaredescribed intheFigure2evaluation forthiszone.Thepenetration intheceilingofFireZone6SisPagell protected bytwosprinkler headslocatedinthe587ftelevation withinatenfootcylind.icalradiusoftheductpenetration.

TheductfromthefloortotheceilingwithinFireZone44Siscontinuous withnoregisteropenings.

Additional protection isprovidedbyatleastfivesprinkler headsintheimmediate vicinityoftheductinFireZone44S.Theductpenetrating intothe633ftelevation hasaregisteropeninginthesouthendofFireZone52,whichispartofFireAreaD.Thepenetration throughthefloorintoFireZone52hassixsprinkler headswithinatenfootcylindrical radiusoftheduct.FireZone52hasalternate shutdownprovisions forthemainsteamsystemlocatedoutsideFireAreaD,whileallothersafeshutdownsystemswithinFireAreaDhaveatleastoneredundant trainlocatedoutsidethearea.Coldshutdownsystemsrequiremanualoperation ofvalveswhicharealsolocatedoutsideofthearea.FireAreaDisequippedwithautomatic firesuppression anddetection andcontainsapproximately 222sprinkler headsinFireZone52andapproximately 87sprinkierheadsinFireZone51.FireAreaDhas39ionization detectors, including 17inFireZone52.Thetwocharcoalfilterunitsinthisfirezoneareprotected byautomatic delugesystemsactuatedbyathermistor 61VCUlt~+IfQpR~g~flycWAkl)(0AJCD&$~5pl)lje/OhKEghgf/3'380BTu,l~/?ir//+)~~~~rt~<<roe"i4g dpPent~rw>>Y<s,Page12 2.4Evaluation ofFiure4rFigure4represents oneductpenetration (30"x24")

andissimilartoFigures2and3(seeSection2.3).Theexhaustductshowncommunicates withr"ireZones6Sand44S,andisductedtotheairshaftyfitheextremesouthendofrFireZone44S.TheductinFireZone6S,hasregisteropenings, butiscontinuous withnoregisteropeningswithinFireZone44Sandisadjacenttotheductdescribed inFigure3.Thesprinkler headarrangement isidentical forboththeductslocatedinFireZone44SasshowninFigures3and4;therefore, theevaluation performed inFigure3appliestoFigure4.Forfireprotect'on featuresandsafeshutdowncapability compliance methods,refertoSection2.3,FireAreas/Zones 6Sand44S.2.5Evaluation ofFiure5Figure5represents twoductpenetrations ofthesamesize(52"x24")

whichcommunicate withFireZones6Nand44N.Thefollowing summarytablesprovidethefireprotection featuresandsafeshutdowncompliance methodsforthezones/areas ofconcern.oFireprotection featuresIIFireArea/Zone IDetection Suppression 6NIonization Detectors Automatic Preaction Sprinkler 44NIonization Detectors Automatic Preaction Sprinkler Page13 oSafeshutdowncompliance methodsIIFireArea/Zone ICompliance MethodsModifications arebeingimplemented toprovidealternative shutdowncapability.

44NModifications arebeingimplemented toIprovidealternative shutdowncapability.

IIITheexplanation of'safeshutdown, fireprotection

features, andcombustible loadingsarecontained intheevaluation ofFigure1.Theductsshownareparalleltoeachother.Thepenetrations throughtheceilingofFireZone6Nareprotected bytwosprinkler headswithina16footcylindrical radiusoftheducts.Theseducts,asshowninFigure5,arecontinuous inFireZone44Nwithnoregisteropenings.

Additional protection oftheductpenetration isprovidedbytwosprinkler headseachoverthepenetration fromFireZone44Nintothesupplyairplenum.2.6Evaluation ofFiure6Figure6represents oneductpenetration (34"x30").

Theduct,asindicated onFigure6,enterstheauxiliary cablevaultinUnit2whichisequippedwitharatedfiredamper.Theductcontinues fromtheauxiliary cablevaulttoFireZone52whichisalsoequippedwithafiredamper.Forfireprotection featuresandsafeshutdowncapability compliance methodsrefertoSection2.3,FireZones6S,44Sand52.Theductpenetration atthe609Page14 ftelevation isprotected bythepresenceofthreesprinkler headswithinatenfootcylindrical radiusonthe6Ssideandtwoonthe44Sside.2.7Evaluation ofFiures7and8Figures7and8represent atotalofl2ductpenetrations (four45"x35",two40"x40",two36"x36",two22"x34"andtwo28"x34"),withUnit2beingamirrorimageofUnit1andeachIunitcontaining si.xductpenetrations.

Thefollowing summarytablesprovidethefireprotection featuresandsafeshutdowncompliance methodsforthezones/areas ofconcern.oFireprotection featuresFireArea/Zone Detection Suppression 49Ionization detectors andThermistors forcharcoalfilterunitAutomatic delugeforcharcoalfilterunit50Ionization detectors andThermistors forcharcoalfilterunitAutomatic delugeforcharcoalfilterunit69Ionization detectors andThermistors forHVACunitsAutomatic delugeforcharcoalfilterunitPage15 oSafeshutdowncompliance methodsFireArea/Zone Compliance MethodsAtleastoneredundant divisionofsafeshutdovncablesislocatedoutsidethefirearea50Atleastoneredundant divisionofsafeshutdowncablesislocatedoutsidethefirearea69including ItheHVACvesti-IbulesontheI650fteleva-ItionIIThelocations containnosafeshutdownsystems,components orcables.Therearenoregisters oropeningsintheductsshownonFigures7and8,hovever,theydocommunicate fromFireAreaDinZones49(Unit1)and50(Unit2)toFireZone69including theHVACvestibules atthe650ftelevation.

FireZones49and50,aspartofFireAreaD,havebeenanalyzedforsafeshutdovnvith,theSectionII1.G.2compliance methodspresented intheMarch1983submittal.

FireZone69including theHVACvestibules onthe650ftelevation andtheareainwhichtheyarecontained havenosafeshutdovnequipment orcircuitslocatedinthem.FireAreasDandEwerecombinedforthepurposesofthisanalysis.

BecauseFireAreaEcontainsnosafeshutdowncomponents orcircuits, thecombination oftheseareasdoesnotchangethemethodofsafeshutdovnforFireAreaD.~z'r(.A~aOuelql~w-eeeg~+A(w/OPAL>l(jg I~35If'/gz)>(~gve.~~'~~~Page16

3.0 Conclusions

forVentilation DuctPenetration Evaluation Thisanalysishasbeencompleted toprovidetechnical justification fornotinstalling firedampersintheventilation systemductpenetrations whichcommunicate betweenfireareasvertically fromelevation toelevation.

Thefireprotection features; e.g.suppression anddetection systemsand/orthelowcombustible loadingswithintheseareasprovideadequateassurance thatfiredamagerelatedtoventilation ductingwillnotimpairsafeshutdowncapability, Themajoremphasis, however,shouldbeplacedonthemethodofcompliance andsafeshutdownforeachofthefirezones/areas involved.

Thecenterlinefirezonesonthe587ftand609ftelevations willbeprovidedwithfirewrappingforsafeshutdowncircuits.

Thenorthandsouthportionsofbothelevations arebeingmodifiedtoprovidealternate safeshutdowncapability.

Elevations 587,609and633havebeenmodifiedtoprovideadditional automatic suppression coverage.

Alsotheregisters betweenandwithinelevations havebeenevaluated anddetermined nottocommunicate betweenredundant safeshutdowncomponents orcircuits.

Asinglefirestartinginoneofthefireareasofconcern,whicharecommunicating throughverticalundampered ducts,wouldnotaffectsafeshutdowncapability.

Thetechnical basisforthisanalysisissummarized below:(1)Existingsuppression systemsinareas/zones whichareprovidedwithautomatic suppression systemswillextinguish thepostulated fireandfirewillnotpropagate outsideofthearea/zone.

Page17 (2)Combustible loadingcontained inthefireareas/zones ofconcernisverylow.(3)Infireareas/zones whicharenotprovidedwithautomatic suppression systems,therequiredsafeshutdowncomponents and/orcablesarebeingprotected.

(4)Afirestartinginanareacouldbeassumedtopropagate totheadjacentareathroughverticalundampered ductpenetrations.

However,safeshutdownoutsideoftheseareasstillcanbeachievedusingtheunaffected trainoralternate safeshutdownmethod,Inconclusion, thisanalysisverifiesthatthesafeshutdownsystemrequirements relativetotheguidelines ofAppendixRarebeingmetandtheexemption frominstallation offiredampersintheventilation ductsisjustified.

Page18

4.0 SeismicGaEvaluation

Methodolo AseismicgapexistsaroundtheContainment Buildingofeachunitvhichprovidesanopeningofapproximately 6"betveentheContainment Buildingandthewalls,ceilingsandfloorsofthestructures immediately.

adjacenttocontainment.

TheMarch1983submittal didnotaddresstheseismicgapwhenfireareaboundaries veredefined.Thus,thisevaluation hasbeenperformed toconfirmthattheseseismicgapsinthefireboundaries donotaffectsafeshutdowncapability.

Thefireareasandzonesadjacenttotheperimeter ofcontainment vhichcontainseismicgapsarethefolloving:

FireAreasasPresented byTable1-1FireArea78101138DescritionQuadrant1CableTunnelQuadrant4CableTunnelQuadrant3MCableTunnelQuadrant3SCableTunnelQuadrant2CableTunnelElevation 596ft596ft596596ft612ftFireAreasasPresented byTable1-2FireAreaDescritionElevation 2324262739Quadrant3NCableTunnelQuadrant3MCableTunnelQuadrant4CableTunnelQuadrant1CableTunnelQuadrant2CableTunnel596ft596ft596ft596ft612ftPage19 FireAreas/Zones asPresented byTable2-1FireArea/ZoneDescritionElevation 33B124969108NESWValveAreaQuadrant2PipingTunnelHVACVestibule Auxiliary BuildingWestSteamValveEnclosure 612ft596ft633ft650612ftFireAreas/Zones asPresented byTable2-2FireArea/Elevation 34B225069109NESWValveAreaQuadrant2PipingTunnelHVACVestibule Auxiliary BuildingWestSteamValveEnclosure 612ft596ft633ft650ft612ftTheMarch1983submittal, theprimarysourceofinformation forthisanalysis, con'tains additional information onthefireareaandzonedescriptions.

Theattachedtables(l-l,1-2,2-1,2-2)provideasummaryoftheevaluations performed ontheareasorzonesaffectedbyseismicgaps.Thegeneralmethodology usedwascoevaluatethearea/zone ofconcerninconcertwiththeadjacentareas/zones ontheleft,right,andimmediately above.Thenewareadefinedbythismethod(seismicgapevaluation area)wasanalyzedtodetermine theimpactonsafeshutdowncomponents andcircuits.

Fourfireareas,aspreviously definedintheMarch,1983submittal, containmultiplezoneswithintheareaandarepartofthisanalysis.

Page20

~II~Theseismicgapevaluation areasonlyconsiders thezoneorareaimmediately adjacenttothepostulated firearea.Thisconfiguration assumestheseismicgapwillallowcommunication betweenadjacentareasorzones.Duetodistance, lowcombustible loading,locationofcombustibles and/orpresenceofdetection andsuppression systemstheaffectofthefirewillnotinvolveallareasandzoneswhichcommunicate byseismicgaps.FireZones33and33Awerenotconsidered withintheseismicgapevaluation astheyareonlyadjacenttoeachotherandFireZone33B.FireZones33,33Aand33Bwereevaluated asoneareaintheMarch1983submittal.

FireZone33Bisconsidered inthisevaluation andincludesFireZone33Aaspartoftheseismicgapevaluation area.Themirrorimagezones(34,34A,34B)inUnit2wereconsidered inasimilarmanner.Thecommunication betweenFireZones49and50isthroughFireZone52separated byover150feet.FireZone51isadjacentto52.FireZones49(Unit1)and50(Unit2)aretheonlyzoneswithintheareawhichcontainseismicgapsatthecontainment wall.Thecommunication betweenfirezones49and50withinthisareawasevaluated intheMarch,1983submittal.

FireZone52isprovidedwithautomatic suppression anddetection andthusprovidesadequateassurance thateitherafireorrelatedcombustion productswouldbecontained withinFireZone49(thesameconfiguration existsforFireZone50).Thefire'reacontaining zones3,32,36,69,and48containnosafeshutdownequipment andcouldhavebeenPage21 includedintoalargerareabuttominimizethesizeoffireareasthesefirezonesareconsidered asonearea.Thecompliance strategies (i.e.,safeshutdownmethod)foreachareaorzonearemaintained andusedthroughout theevaluation whiletakingintoaccountadditional considerations suchas:1.2.3.4~Distancebetweenfirezones/areas Locationofcombustibles Combustible loadingDetection andsuporession systems4.1Evaluation ofTables1-1hnd1-2,Fivepreviously definedfireareasineachunithaveautomatic C02suppression anddetection systemsinthearea.TheseareasarelistedinTables1-1and1-2.Thewalls,floors,andceilingsofthetenareas(including bothunits)areconstr'ucted toatleastal-l/2-hour firerating.Asealintheseismicgapsprovidesabarrierforcontaining thegaseoussuppression system.Thesealisaffixedtoboththecontainment wallandthefloor,ceilingorwalloftheperimeter buildings.

Thesealismadeofglassfiberreinforced siliconesheetingandisafireretardant material.

Afireoriginating withintheareascontaining automatic suppression wouldstayconfinedtothatareaandbeextinguished bytheautomatic suppression system.Thus,eachofthesetenareaswasevaluated asanisolatedareabasedontheassumption thatthefirewithintheareascontaining suppression systemswouldbecontained andextinguished inthearea.Page22 4.2Evaluation ofTables2-1and2-2Evaluations ofareasorzones,wh*ichwerenotequippedwithautomatic suppression systems,considered thesealdamagedinadjacentareas/zones (left,rightandabove)including thosecontaining automatic suppression.

Eachnewlydefinedevaluation areawasreanalyzed onasafeshutdownsystembasiswiththeresultspresented inthesystemevaluation columninTables2-1and2-2.Theareasand/orzonesofconcernwhichdonothaveautomatic suppression systemshavelowcombustible loadingsandwithintheimmediate vicinityoftheseismicgapsaregenerally voidofexposedfixedcombustibles.

Thezones/areas ofconcernarepresented inTables2-1and2-2.Excluding theareascontaining automatic suppression fromthepostulated firelocation, thefollowing combinations ofareas/zones areevaluated:

Unit1Postulated FireLocations andAssociated Zones/Areas l.2.3.5.33Bwith33A,38,108and4912with7,ll,33Band3849with69and10869with108108with49and69Unit2Postulated FireLocations andAssociated Zones/Areas l.2.3.4.5.34Bwith34A,39,109and5022with27,23,34Band3950with69and10969with109109with50and69Tables2-1and2-2presenttheresultsofthesystemevaluation foreachpostulated firelocation.

Page23

5.0 Conclusion

forContainment SeismicGaEvaluation Thisseismicgapevaluation showsthesafeshutdowncapability forD.C.CookNuclearPlant(Units1and2)hasnotbeencompromised asaresultofseismicgaps.Theanalysisperformed andtheresultspresented inthetablesindicateonasystembasis,thecapability tosafelyshutdownbothunitswhenconsidering firedamagetosafeshutdowncomponents andcircuitscontained intheseismicgap.evaluation areas.Themethodofanalysisisconservative whenconsidering thefirehazardsinvolvedinthevicinityoftheseismicgaps.Thatis,itisnotanticipated thattheevaluated areaswouldbeaffectedtotheextentthatfirewouldpropagate throughtheseismicgapsandcausedamagethroughout theevaluation area.Combustion productswouldlikelyentertheadjacentareasorzones,however,damagetosafeshutdowncomponents andcircuitswouldlikelynotoccur.lnanyevent,theanalysiscontained hereinassumesthedamagetosafeshutdowncomponents andcircuitsintheseismicgapevaluation areadidoccurandverifiesthatsafeshutdowncapability ismaintained.

Page24 FIG.1.isama~is~Ar~<<4ie~i'p~+>>

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~609' TABLE1AIRREGISTERLOCATIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES DRAWINGNUMBER1012131415ReactorCoolantDrainTankPumpPipeTunnelDrainTankandPun<pSumpPumpRoo<nReactorCoolantFilterUnit1ValveOperating GalleryBoricAcidEvaporating Roo<nSealwaterInjection AreaPipewayGasDecayTankRoomTunnel.Elevation 601ftVolumeControlTankConcentrate HoldingTankWasteGasCompressor RoomConcentrate HoldingTankWL-4.58.WofWL-MWL-4.78,WofWL-MWL-5.3ItWofWL-MWL4.58.EofWLLWL5.58WL-MWL-3.68.WL-KWL48WL-KWL4.58WotWL-MWL4.58.WL-MWL-4.68WofWL-LWL58.WofWL-LWL-58.EofWL-LWL-5.28.WL-KWL-4.48.EofWL-KWL-5.28.WL-K12-5713-4 12-5713-4 12-5713-412-5713-412-5715-10 12-5715-10 12-5715-10 12-5715-10 12-5715-10 12-5715-10 12-57i5-1012-5717-712-5717-712-5717-7 12-5717-7 Page1of1 TABLE2AIRREGISTERLOCAfIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES DRAWINGNUMBER1012PipeTunnelReactorCoolantDrainTankSumpPump8.TankPipewaySealWaterInjection FiltersWL-7.58WL-MWI-7.38,WL-MWL-78.WL-MWLB8,WL-MWL68WLMMonitorTankAreaMonitorTankAreaMonitorTankAreaMonitorTankAreaVolumnControlTankAreaSealwaterIieetExchanger AreaWf-0.48.WL-MWL-B8.WL-h'IWL-7.68,WL-MWL-7.38WL-MWL-78.EofWL-MWL-78EofWL-MReaCtOrCOOIant/Seal Wate(FilterWL-6.48.WL-hi12-5713-4 12-5713-412-5713-4 12-5715-10 12-5715-10 12-5/15-10 12-5717-7 12-5717-7 12-5717-7 12-5717-712-5717-712-5717-7 TABLE3AIRREGISTERLOCATIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES DRAWINGNUMBERBehindMCC'sonElevation 587WL-8KEofWL-MIElevation 633ftUnit2SideWL-B.28.WofwL-M12-5715-10 12-5719-7Page1of1 TABLE4AIRREGISTERLOCATIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES DRAWINGNUMBERValveGalloryPipeTunnelGasDecayTankRoomBoricAcidEvaporator ValveOperatinOGalleryWL-78.WofWL-LWL-7ItWofWL-LWL-B8.WL-KWL-B.58WL-K12-5715-1012-5715-10 12-5715-10 12-5715-10PaBe1of1 TABLE5AIRREGISTERLOCATIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES ORAWINGNUMBERCVCSFacilityCVCSFacilityWL-4.4aWL-LWL-4.48.WL-L12-5715-10 12-5715-10 Pape1of1 TABLE6AIRREGISTERLOCATIONAIRREGISTERNUMBERAREALOCATIONCOORDINATES ORAWINGNUMBERMonitorPuinpsWL"B8WL-L12-5715-10PMUe1of TABLE1-1UNIT1FIREAREAS/ZONES PROTECTED BYAUTOMATIC C02SUPPRESSION FIREAREA~COMBUSTIBLE LOADINg(BTU/FT)-EQUIVALENT FIREAREASEVERITY(FT)I(MIN)SUPPRESSION DETECTION ColIhtErrT115.0319soI88C02AUTOMATIC IONIZATION ANDINFRAREDTYPESEXISTINGAUTOMATIC C02SUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTULATEO FIREINTHEAREA/ZONEANOTHEFIREWILLNOTPROPAGATE OUTSIDEIOFTHEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIANCE METHODSSTILIAPPLY.30'951.SSOI23COZAUTOMATIC IONIZATION ANDINFRAREDTYPESEXISTlNGAUTOhlATIC COZSUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTULATEO FIREIt(THEAREA/ZONEANDTHEFIREWILLNOTPROPAGAlEOUTSIOEOFTHEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIAtrCE METHODSSTILLAPPLY.10103,54228,2788007417821COZAUTOMATIC C02AUTOhIATIC IONIZATION ANDINFRAREDTYPESIONIZATION ANDINFRAREDTYPESEXISTINGAUTOh1ATIC C02SUPPRESSION SYSTEMWILLEXTlNGUlSH ANYPOSTULATED FIREINTHEAREA/ZONEANDTHEFIREWILLNOTPROPAGATE OUTSIDEOFTHEARFA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIANCE h1ETHODSSTILLAPPLY.IIExlsTIt<G AUT0MATlc c02sUPPREssloN sYsTEMwILLEXTINGUISH ANYPOSTULATED FIREINTHEAREA/20NEANDTHEFIREWILLNOTPROPAGATE OUTSIDEIOFTHEAREA/ZONE THROUGH.SEISMICGAPS.THEIPREvloussAFEsHUToowNcAPABILITY coMPLIANcE METHODSSTILLAPPLY.3839,1812,650I29C02AUTOMATIC IONIZATION ANDINFRAREDTYPESEXISTINGAUTOMATIC CO2SUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTULATED FIREItrTHEAREA/IZONEANDTHEFIREWILLNOTPROPAGATE OUTSIDEOFTHEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIANCE METHODSSTILLAPPLY.+FIREAREASASDEFItrEDINSAFESHUTDOWNCAPABILITY ASSESSMENT OFMARCH1983SUBMITTAL PAGE1OF TABLE1-2UNIT2FIAEARFAS/ZONES PAOTECTED BYAUTOMATIC C02SUPPRESSION FIREAREA>>COMBUSTIBLE LOADIN(IAREA(BTU/FTi)

I(FT2)EQUIVALENT FIRESEVERITY(MIN)SUPPRESSION DETECTION COMMENT2764,2521,056IC02AUTOMATIC IGNIZATIONANDINFAAREOTYPESEXISTINGAUTOMATIC C02SUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTUI.ATEO FIAEINTHEAREA/20NEAtIDTHEFIAEWILLNOTPAOPAGATE OUTSIDEOFTHEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIAtICE METHODSSTjLLAPPLY.21,7472'46ICOZAUTOMATICIONIZATION ANDINFRAREOTYPESEXISTINGAUTOMATIC COZSUPPRESSION SYSTFMWILLEXTINGUISII ANYPOSTULATED FIREINTHEARFA/20NEANDTtIEFIAEwlLLNOTPROPAGATE OUTSIDEOFTHEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOwNCAPABILITY COMPLIANCE METHODSSTILLAPPLY.2477'03000I58C02AUTOMATIC IONIZATION ANDINFRAREOTYPESEXISTINGAUTOhIAT)

CC02SUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTULATEO FIREINTHEAREA/20NEANDTHEFIAEWILLNOTPROPAGATE OUTSIDEOFTHEAAEA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIANCE METHODSSTILLAPPLY.2327.630640I21COZAUTOMATIC IONIZATION ANDINFRAREDTYPESEXISTINGAUTOh'IATIC COZSUPPRESSIOtt SYSTEMWILLEXTINGUISH ANYPOSTULATED FIREINTHEAREA/20NEANDTHEFIREWILLNOTPROPAGATE OUTSIDEOFTtlEAREA/ZONE THROUGHSEISMICGAPS.THEPREVIOUSSAFESHUTDOWNCAPABILITY COMPLIANCE METHODSSTILLAPPLY.3926'303,667I21C02AUTOMATIC IONIZATION ANDINFRAAEDTYPESEXISTINGAUTOMATIC COZSUPPRESSION SYSTEMWILLEXTINGUISH ANYPOSTULATED FIREINTHEAREA/IZONEANDTHEFIAEWILLNOTPROPAGATE OUTSIDEOFTHEAREA/20ttE THAOUGHSEISMICGAPS.THEPREVIOUSSAFESHUTOOwNCAPABILITY COMPLIANCE METHODSSTILLAPPLY.>>FIREAREASASDEFINEDIttSAFESHUTDOWNCAPABILITY ASSESSMENT OFMARCH19B3SUBMITTAL PAGE1OF1 TABLE2-1UNIT1FIREAREAS/ZONES OFCONCERNSEISMICGAPEVALUATION AREAPOSTULATEO FIRELOCATIONADJACENTAREA/ZONE OFCONCERNCOMBUSTIBLE LOADINg)AREA(BTU/FT)I(FT2)EQUIVALENT FIRESEVERITY(MIN)SUPPRESSION DETECTION SYSTEMEVALUATION 33833A10889765'583.200I4939.161l2.650I29INONEAUTOMATIC DELUGEFORCHARCOALFILTERAUTOMATIC C02NONEAUTOMATIC DELUGEFORICHARCOALFILTERNONETHERMISTOR FORCHARCOALFILTERUNITIONIZATION ANDINFRAREDTYPESNONEIONIZATION ANOTHERMISTOR FORCHARCOALFILTERFIREZONES338,33A.38~108ANO49ARECOMBINEDASONEAREAFORTHISSYSTEMEVALUATION.

THESAFESHUTDOWNSYSTEMSAVAILABILITY ISPRESENTFD BELOW:MS-INSTRUMENTATION ASSOCIATED WITHSTEAMGENERATORS 1AND4ISAVAILABLE INCONJUNCTION WITHMANUALOPERATION OFASSOCIATEOh1RVsOUTSIDEOFTHEEVALUATION AREA.2.AF-TWOOUTOFTHREETRAINSOFTHEAFSYSTEMSARELOCATEOOUTSIDETHEEVALUATION AREA;THUSSTEAMGENERATORS 1AND4CANBESUPPLIEDWITHAUXILIARY FEEOWATER.

3.RCS-TgANDTgNORMALINDICATIONS AREAFFECTED, BUTALTERNATIVE INDICATION CAPABILITY ISBEINGPROVIDEDASPRESENTED INMARCH1983SUBMITTAL.

ATLEASTONETRAINOFOTHERRCSPROCESSMONITORING SYSTEMCOMPONENTS ISLOCATEOOUTSIDEOFTHEEVALUATION AREA.4.CVCS-THESAFESHUTDOWNCOMPONENTS ANDCIRCUITSASSOCIATEO WITHTHISSYSTEMARELOCATEOOUTSIDEOFTHEEVALUATION AREAR'XCEPT THECABLEASSOCIATEO WITHQRV-251,WHICHFAILSAT50GPh1MINIMUMFLOWPOSITION.5.THEFOLLOWING SYSTEMSHAVENOCOMPONENTSI ORCIRCUITSINTHEEVALUATION AREA:oESSENTIAL SERVICEWATER(ESW)oCOMPONENT COOLINGWATER(CCW)oEMERGENCY POWERSYSTEM(EPS)oRESIDUALHEATREh10VAL(RHR)FIREZONES33~33AAND338ARECONTAINED INAFIREAREAFORWHICHTHECOMBUSTIBLE LOADINGIS11,016BTU/FT,AREAIS2,890FTANDEQUIVALENT FIRESEVERITYIS8MINUTESPAGE1OF4 TABLC.2-1(continued)

IFIREILOCATIONOFCONCERNSEISMICGAPEVALUATION AREAIAOJACENT IPOSTULATED IAREA/ZONE ive48u>TIBLE LOADIN(t(BTU/FTc)

AREA(FT2)IEQUIVALEttTFIRESEVERITY(MIN)SUPPRESSION D<TECTIOtq SYSTEMEVALUATION 123383851517~812115,03196028,27874139,161I2,6502129NONEAUTOMATIC C02AUTOMATIC C02INONEIIAUTOMATIC C02INONEIIONIZATIONANDINFRAREDTYPESIONIZATION ANDINFRAREDTYPESt<Ot~EIONIZATION ANDINFRAREDTYPESFiREZONECOMBINEDEVALUATIO AVAILABIL1.MS2.AF3.RCS4.CVCS-5.EPS6.RHRS12.7,>>,338AND38AREASONEAREAFORTHISSYSTEMN.THESAFESHUTDOWNSYSTEMSITYISPRESEt<TED BELOWtATLEASTONETRAINOFSAFESHUT-OOwNCOMPONENTS AttDCIRCUITSASSOCIATEO WITHTtIISSYSTEMARELOCATEOOUTSIDEOFTtREEVALUATION AREA.ATLEASTONETRAINOFSAFESHUT-DOWNCOMPONENTS ANDCIRCUITSOFTHISSYSTEMASSOCIATEO WlTttTttESAMEUNAFFECTED MSTRAINARELOCATEDOUTSIDEOFTHEFVALUATION AREA.TtqANOTct<ORMALINDICATIONS AREAFFECTED, BUTAL'IERNATIVE INDI-CATIONCAPABILITY ISBEIttGPROVIDEDASPRESEttTED INMARCH1983SUBMITTAL.

ATLEASTONETRAINOFOTHERSAFESHUTDOWNPROCESSMONITORING SYSTCMCOMPONENTS ARELOCATEDOUTSIDEOFTHEEVALUATION AREA.THESAFESHUTDOWNCOMPONENTS ANOCIRCUITSASSOCIATED WITttTHISSYSTEMARELOCATEDOUTSIDEOFTHEEVALUATION AREA.EXCEPTQRV-251,WHICHFAILSAT50GPMMINIMUMFLOWPOSITION.

ATLEASTONE1RAINOFSAFESHUT-DOwNCOMPONENTS AttDCIRCUITSOFTHISSYSTEMARELOCATEDOUTSIDEOF!THEEVALUATIOrt AREA.TttEELSCLOCATEOINTttEAREA,WttlCHCOULDBEAFFECTED.

SUPPLIFSPOWERTOTHEAFFECTEDTRAIttOFSAFEStlUTDOWt1 INSTRUMENTATION 0)SCUSSED ABOVE.MANUALOPFRATION OFTttEAFFECTEDVALVES,WHICttHAVECABLESINTHEEVALUATION AREA,ISAVAILABLE.

(THISFIREAREAISCONTlttUED ONTttENEXTPAGE)4FIREZONES33.33AAND338ARECONTAINED INAFIREAREAANOEQUIVALENT FIRESEVERITYIS8MINUTESFORWHICHTHECOMBUSTIBLE LOADINGIS11,016BTU/FT,AREAIS2~890FT2PAGE2OF4 TABLE2-1(co>>tinueu)SEISMICGAPEVALUATION AREAPOSTULATED FIRELOCATIONADJACENTAREA/ZONEI OFCONCERNCOMBUSTIBLE LOADINgiAREA(BTU/FT)I(FT)EQUIVALEtlT FIRESEVERITY(MIN)SUPPRESSION DETECTION SYSTEMEVALUATION 12(cont.)7.THEFOLLOWING.

SAFESHUTDOWNSYSTEMS'OMPONENTS ANDCIRCUITSARELOCATEOOUTSIDEOFTHEEVALUATION AREA:oESWoCCW496965~6581,3143.20017.914AUTDMATIC DELUGEFORCHARCOALIFILTERAUTOMATIC IDELUGEFORHVACUNITIONIZATION ANOTHERMISTOR IFORCHARCOALIFILTEAIONIZATION aNOTHERMISTORSIFOAHVACIUNITSFIREZONES49,69AND108ARECOMBINEDASONEAREAf'RTHISSYSTEMEVALUATION REGARDING SAFESHUTDOWNCAPABILITY ASSESSMENT.

FIREZONES49ANO69CONTAINNOSAFESHUTDOWNSYSTEMS'OMPONENTS ANDCIRCUITS.

THESAFESHUTDOWNCOMPONENTS ANDCIRCUITSLOCATEDINTHISEVALUATION AAEAARETHECOMPONENTS ANDCIRCUITSLOCATEOINFIREZONE108FORWHICHCOMPLIANCE METHODISPRFSENTED Itl1983SUBMITTAL.

108897NONEINONE691081,31417,914897I0AUTOMATIC DELUGEFORHVACUNITNONEIONIZATION ANDTHEAtlISTOAS IFORttVACUNITSINot<EFIREZONES69AND108ARECOMBINEDASONEAREAFORTHISSYSTEMEVALUATION IREGARDING SAFESHUTDOWNCAPABILITY IASSESSMENT.

FIREZONE69CONTAINSNOSAFESHUTDOWNSYSTEMS.COMPONENTS ANDCIACUITS.

THESAFESHUTDOWNCOh'IPOtlENTS IANDCIRCUITSLOCATEDINTHISEVALUATION AREAARETHECOMPONENTS ANDCIRCuiTSLOCATEOINFIREZONE108FORWHICHCOM-PLlatlCEMETHODISPRESENTED IN1983SUBMI'TTAL.

PaGE3OF4 TABLE2-1(coiitinueu)

SEISMICGAPEVALUATION AREAPOSTULATEO FIRELOCATIONADJACENTAREA/ZONE IOFCONCERNCOMBUSTIBLE LOADIN('t IAREA(BTU/FTc)

(FT)EQUIVALENT FIRESEVERITY(MIN)SUPPRESSION DETECTION SYSTEMEVALUATION 108897I01,31417,91465~65813'00I49NONEAUTOMATIC OEI.UGEFORCHARCOALFILTERAUTOMATIC DELUGEFORHVACUNITNONEIONIZATION ANDTHERMISTOR FORCHARCOALFILTERIOttIZATIOttANDTHERMLSTORS IFORHVACUNITSFIREZONES49,69AND108ARECOMBlttED ASONFAREAFORTHISSYSTEMEVALUATION IREGARDING SAFESHUTDOWNCAPABILITY ASSESSMENT.

FIREZONES49ANO69COttTAIN)tlOSAFESHUTDOWNSYSTEMS,COMPONEttTS ANDCIRCUITS.

THESAFESHUTDOWNCOMPONEttTS IANOCIRCUITSLOCATEDINTHISEVALUATION IAREAARETHECOMPONENTS ANDCIRCUITSLOCATEDINFIREZOttE108FORWHICHCOMPLIANCE MET1100ISPRESENTED IN1983SUBMITTAL.

PAGE4OF4 TABLE2-2UNIT2FIAEAREAS/ZONES OFCONCERt(SEISMICGAPEVALUATION AREAIPOSTULATEO IFIREILOCATIONADJACENTZONEI.OFCONCERNCOMBUSTIBl.E LOAOItt(t IAREA(BTU/FTz)

I(FT)FIAESEVERITY(MIN)IEQUIVALENT SUPPAESSION DETECTIOtt SYSTEMEVALUATION 34834A3910950NONEIAUTOMATIC DELUGEFORCHARCOALFILTERIN34ANONETHERMISTOR FORCHARCOALFILTERUNITItd34A28.630I2,667I21IAUTOMATIC COZIONIZATION IANDINFRAREDTYPES8970INONEINONE48,878I3,200I37AUTOMATIC DELUGEFORCHARCOALFILTERIONIZATIOttIANDTHEAMISTOA IFORCHARCOALIFILTER4I(THISFIREARESCOUEOONTHENEXTPAGE)AINTIN1.MS2.AF3.ACS4.CVCS-5.EPSINSTRUMENTATION ASSOCIATED WITHSTEAMGENERATORS 1AND4ISAVAILABLE INCONJUNCTION WITHhtANUALOPERATION OFASSOCIATED MAVs.hlANUALOPERATION OFAFFECTEDFhl0212AND242IttCONJUNCTION WITHEREMOTEOPERATIOtt OFOT<<EAREQUIREDI SAFESHUTDOWNCOMPONENTS OFTHISSYSTEMOUTSIDEOFTHEEVALUATION AREAWILLUTILIZEAFSYSTEMTOSUPPLYAUXILIARY FEEDWATER TOSTEAMGENERATORS 1AND4.TtqANDTgNORMALINDICATIONS AREAFFECTED, BUTALTERNATIVE INDI-CATIONCAPABILITY ISBEINGPROVIDEDASPRESENTED INhlARCH1983SUBhtlTTAL.ATLEASTONETRAINOFOTHERRCSSAFESHUTDOWNPROCESSMONITORING SYSTEMCOMPONENTS ISLOCATEOOUTSIDEOFTHEEVALUATION AREA.THESAFESHUTDOWNCOMPONENTS ASSOCIATED WITHTHISSYSTEMaRELOCATEDOUTSIDEOFTHEEVALUATION AREAR'XCEPT THECABLEASSOCIATED YtITHQRV-251.WHICHFAILSAT50GPMMINIMUMFLOWPOSITION.

SAFESHUTDOWNCOMPONENTS ANDCIRCUITSOFONETRAINOFEPSWHICHINCLUDESOGABARELOCATEDOUTSIDEOFTHEEVALUATION AREA.FIREZONES34B,34A,39.109ANO50AREICOMBINEDASONEAREAFORTHISSYSTEMEVALUATION.

THESAFESHUTDOWNSYSTEMSAVAILABILITY ISPRESENTED BELOW:4FIREZONES34,34AAND348ARECONTAINED INAFIREAAEAFORWHICHTltECOMBUSTIBLE LOADINGANDEQUIVALENT FIRESEVERITYIS4MINUTESPAGE1OF5IS5.809BTU/FT,AREAIS2.890FT2 TABLE2-2(contlnueu)

SFISMICGAPEVALUATION AREAPOSTULATED FIRELOCATION348(cant.)ADJACENTZONEIOFCONCERNCOMBUSTIBLE LOADIN(t(BTU/FTc)

AREAI(FT2)IEQUIVALENT IFIREISEYERITYI(MIN)IIISUPPRESSION DETECTION 6.CCW7.RHRI8.ESWSYSTEMFVALUATION ICIACUITSANDCOMPONENTS ASSOCIATED WITHTHISSYSTEMREQUIREDFORHOTISHUTDOWNARELOCATEDOUTSIDEOFITHEEVALUATION AAEA.MANUALIOPERATION OFTHEAFFECTEDVALVESIAEQUIRFDFORCOLOSHUTDOWNISIAVAILABLE.

IhlANUAlOPERATION OFTHEAFFECTEDVALVES,WHICHHAVECABLESINTHEEVALUATION AREA,ISAVAILABLE.

NOTAFFECTED, EVALUATION AREADOESt<OTCONTAINCOMPOHFNTS ORCIRCUITSASSOCIATED WITHTHISSYSTEMREQUIREDFORSAFESHUTDOwti.I II225918,460HONEIHONFFIREZONES22.27,23.348AND39ARECOhlBINEOASONEAREAFORTHISSYSTEhl27233483984,252I1.056IIAUTOhIATI CC02IONIZATIONIANDINFRAREDTYPES27,830840I21AUTOMATIC C02IONIZATION ANDINFRAREDTYPESIHONENONE28.6302.66721AUTOMATIC C02IONIZATION ANDINFAAREDTYPESI(THISFIREAREAISCOttTINUED OttTHEt<EXTPAGE)1.MS2.AF3.RCSINSTRUMENTATION ASSOCIATED WITHSTEAMGENERATORS 1AND4ISAVAILABLE INCONJUtlCTIONWlTHhlANUALOPERATION OFASSOCIATED MAVsOUTSIDEOF1HEEVALUATION AREA.htAHUALOPEAATION OFAFFECTEDFM0212AND242ANDFAV247INCONJUNCTION WITHREMOTEOPEAATIOtt OFOTHERCOhtPOttENTS OFTHISSYSTEMRFQUIREDFORSAFESttUTDOWtd OUTSIDEOFTHEEVAI.UATIOH AREAWILLUTILIZEAFSYSTEMTOSUPPLYAUXILIARY FEEOWATER TOSTEAMGENERATORS 1AND4.TnAHDTctlORMALIttDICATIONS AAFAFFECTED.

BUTALTERHATIVE INDICA-TIONONCAPABILITY ISBEINGPROVIDEDASPRESENTED INMARCH1983SUBhllTTAL.ASLEASTONETRAINOFOTHERRCSSAFESHUTDOWNPROCESSMONITORING SYSTEtlCOMPONENTS ISLOCATEDOUTSIDEOFTHEEVALUATION AAEA.EVALUATION.

THESAFESHUTDOWNSYSTEMSIAVAILABILITY ISPRESENTED BELOW:FIREZONES34,34AANO348AAECONTAINED INAFIAEAAEAFORWHICHTHECOMBUSTIBLE LOADIHGANDEQUIVALENT FIRESEVERITYIS4MINUTESPAGE2OF5IS5,809OTU/FT,AREAIS2~890FT2 TABLE2-2(continueu)

SEISMICGAPEVALUATION AREAPOSTULATED FIRELOCATIONIAOJACENT ZONEOFCONCERN~COMBUSTIBLE LOADIN@(BTU/FTz)

AREA(FT)EQUIVALENT FIRESEVERITY(MIN)SUPPRESSION DETECTION SYSTEMEVALUATION 22(cont.)CVCS-5.EPS6.CCW7.RHR8.ESWTHESAFFSHUTDOWNCOMPONENTS ASSOCIATED WITHTHISSYSTEMARELOCATEDOUTSIDEOFTHEEVALUATION AREA.EXCFPTCABLEASSOCIATEO WITHQRV-251.WHICHFAILSAT50GPMhlINIMUMFLOWPOSITION.

SAFESHUTDOWNCOMPONENTS ANDCIRCUITSOFONETRAINOFEPSWHICHINCLUDESDGABARELOCATEDOUTSIDEOFTHEEVALUATION ARFA.CIRCUITSANDCOMPONENTS ASSOCIATED WITHTHISSYSTEMREQUIREDFORtlOTSHUTDOWNARELOCATEOOUTSIDEOFTHEEVALUATION AREA.MANUALOPERATION OFTHEAFFECTEDVALVESREQUIREDFORCOLDSHUTDOWtl ISAVAILABLE.

hlANUALOPERATION OFTHEAFFECTEDVALVES,WHICHHAVECABLESINTHEEVALUATION AREA,ISAVAILABLE.

NOTAFFECTED, EVALUATION AftEADOESNOTCOtITAINCOMPONEttTS ORCIRCUITSASSOCIATED WITHTHISSYSTEMREQUIREDFORSAFESHUTDOWN.

506910949,8983'003/IAUTOMATIC IDELUGEFORICHARCOALIFILTERIONIZATION ANDTHERMISTOR FORCHARCOALIFILTER1,31417.914IAUTOhlATI CDELUGEFORHVACUNITIONIZATION IAND1'HERMISTORS IFORHVACIUNITS897I0II(TNONENONEHISFIREAREAISCONTINUED ONTHENEXTPAGE)1.tJIS2.AFINSTRUhlENTATION ASSOCIATED WITHSTEAMGENERATORS 1AND4ISAVAILABLE INCONJUNCTION WITHMANUALOPERATION OFASSOCIATED MRVsOUTSIDEOFTHEEVALUATION AREA.ONETRAINOFTHISSYSTEMIt1CLUDING PUMPPP-3W(ANDASSOCIATED CABLES)IANDFM0212AND242ANDASSOCIATEO ICABLESARELOCATEOOUTSIDEOFTHEEVALUATION AREA.FIREZONES50,69AND109ARECOhlUINED ASONEAREAFORTHISSYSTEMEVALUATION.

THESAFESHUTDOWNSYSTEMSAVAILABILITY ISPRESENTED BELOW:PAGE3OF5 TABLE2-2(cont1nueu)SEISMICGAPEVALUATION AREAPOSTULATED FIRELOCATIONADJACENTZONEOFCOHCERNCOMBUSTIBLE LOAOINQlAREA(BTU/FTi)

(FT2)EQUIVALENT FIRESEVERITY(tahiti)SUPPRESSIOH DETECTION SYSTEh1EVALUATION 50(cont.)3.CVCS"COMPONENTS ANDCIRCUITSASSOCIATED)

WITHTHISSYSTEMARELOCATEOOUTSIDEOFTHEEVALUATION AREA,EXCEPTONEOFTHECHARGINGPUMPSSUCTIONVALVECABLE(REDUNDANT VALVEISAVAILABLE).

4.CCW-CIRCUITSANDCOMPONENTS ASSOCIATED WITHTHISSYSTEMREQUIREDFORHOTSHUTDOWNARELOCATEOOUTSIDEOFTHEEVALUATION AREA.MANUALOPERATION OF1'tlEAFFECTEDVALVESREQUIREDFORCOLDSHUTDOWNISAVAILABLE.

I5.RHR-MANUALOPERATION OFTHEAFFECTEDVALVES.WHICHHAVECABLESINTHE.EVALUATION AREA,ISAVAILABLE.

6.THEFOLLOWING SAFESHUTDOWNSYSTEMSCOMPONENTS ANDCIRCUITSARELOCATEOOUTSIDEOFTHEEVALUATION AREA:oRCSoEPSoESW691091,31417,914I897IAUTOMATIC DELUGEFORHVACUNIT0INONEIONIZATION ANDTHERMISTORS FORHVACUNITSNONEFIREZONES69AttD100ARECOMBINEDASONEAREAFORTtlISSYSTEMEVALUATION REGARDING SAFESHUTOOWHCAPABILITY ASSESSMENT.

FIREZONE69CONTAIttS tt0SAFESHUTDOWNSYSTEMS.COMPONENTS ANDCIRCUITS.

THESAFESHUTDOWNCOMPONEttTS ANDCIRCUITSLOCATEDINTHISEVALUATION IAREAARETHECOMPONENTS ANDCIRCUITSLOCATEDINFIREZONE108FORWHICttCOM-PLIAt<CEMETHODISPRESENTED IN1983SUBh11TTAL.PAGE4OF5 TABLE2-2(continued)

SEISMICGAPEVALUATION AREAPOSTULATEO FIRELOCATIONADJACENTZONEOFCONCERNCOMBUSTIBLE LOADIN(t(BTU/FTc)

AREA(FT2)lEQUIVALENT FIRESEVERITY(MIN)-SUPPRESSION DETECTIOttSYSTEMFVALUATION 109691,31450I49.6968973,200I17,914'7INONEAUTOMATIC IDELUGEFORCHARCOALFILTERAUTOMATIC DELUGEFORHVACUNITINONE10ttIZATIONIANDTHERMISTOR FORCHARCOALFILTERIONIZATION ANDTHERMISTORS FORHVaCUNITSFIRE20tlES50,69AND109ARECOMBINEDASONEAREAFOR1HISSYSTEt1EvaLUATION.

THESAFESHUTDOWNSYSTEMSAVAILABILITY ISPRESENTFD BELOW:1.MS-INSTRUMENTATION ASSOCIATED WITHSTEAMGENERATORS 1ANO4ISAVAILABLE INCONJUNCTION WITHMANUALOPERATION OFASSOCIATED MRVsOUTSIDEOFTHEEVALUATION AREa.2.AF-ONETRAINOFTHISSYSTEMINCLUDINGI PUhtPPP-3W(ANDASSOCIATEO CABLES)(ANDFt40212ANO242ANDASSOCIATED CABLESARELOCATEDOUTSIDEOFTtifEVALUATION AREA.3.CVCS-COMPONENTS ANOCIRCUITSASSOCIATED WITHTHISSYSTEMARELOCATEDOUTSIDEOFTHEEVALUATION AREA,EXCEPTONEOFTHECHARGINGPUMPSSUCTIOttVALVECABLE(REDUNDANT VALVEISAVAILABLE)

~4.CCW-CIRCUITSANDCOMPONENTS ASSOCIATED WITHTttISSYSTEMREQUIREDFORHOTSHUTOOwNARELOCATEOOUTSIDEOFTHFEVat.UATION AREA.MANUaLOPERATION OFTHEAFFECTEDVALVESREQUIREDFORCOLDSHUTDOWNISAVAILABLF.

5.RtlR-MANUALOPERATIONOFTHEAFFECTEDVALVES.WHICHHAVECABLESINTHEEvALUaTION AREA.ISAvaILABLE.

6.THEFOLLOWING SAFESHU100WNSYSTEMSCOMPONENTS ANDCIRCUITSARELOCATEDOUTSIDEOFTHEFVALUATION AREA:oRCSoEPSoESWPaGE5OF5

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