ML17229A786

Rev 2 to Cable Derating in Conduits W/Fire Barrier Coatings.

ML17229A786
Person / Time
Site:	Saint Lucie
Issue date:	06/16/1998
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17229A785	List: L-98-175, Submits Response to NRC 980423 RAI Re GL 92-08, Thermo-Lag 330-1 Fire Barriers. Calculations Referenced in Response Are Attached ML17229A786 ML17309A949
References
PSL-OFJE-96-001, PSL-OFJE-96-001-R02, PSL-OFJE-96-1, PSL-OFJE-96-1-R2, NUDOCS 9806300530
Download: ML17229A786 (31)

Text

St.LucieUnits1and2DocketNos.50-335and50-389L-98-175Attachment3Pagei'CalculationNo:Title:0RevisionforNRCGL92-08RAI¹2RevisionforHeatLoadINITIALISSUEol-I4-9812-17-968-12-96Oro-fr-9812-17-968-12-96oro-~r.I12-18-968-14-96No.DescritionDateREVISIONSChkdDateArDate980b300530980b2bPDRADQCK05000335PPDRampcalc.05/98

PageiiCalculationNo.Rev.TitlePae1012121315SectionCoverListofEffectivePagesTableofContents1.0Purpose2.0References2.0References2.0References2.0References2.0References2.0References2.0References2.0Reference3.0Methodology3.0Methodology3.0Methodology4.0Assumptions/Bases4.0Assumptions/Bases4.0Assumptions/Bases4.0Assumptions/BasesRev.000Pae16171819202122232425Section5.0Calculation5.0Calculation5.0Calculation5.0Calculation5.0Calculation5.0Calculation5.0Calculation5.0Calculation6.0Results6.0ResultsRev.Pampcalc.05/98 PageiiiCALCULATIONNUMBERREV.1.02.03.04.05.06.0CoverSheetListofEffectivePagesTableofContentsPurpose/ScopeReferencesMethodologyAssumptions/BasesCalculationResults10121624ICEAPub.No.S-66-5245.NEMAStdWC7-88,ExcerptTable2-456-1NUCONInternational,Inc.,"PyrolysisGasChromatographyAnalysisof9Thermo-LagFireBarrierSamples",P.O.No.LJ950WP-006,12May1995NUCLEARREGULATORYCOMMISSION"SECONDREQUESTFORADDITIONALINFORMATION-GENERICLETTER92-08,"THERMO-LAG330-1FIREBARRIERS",ST.LUCIEPLANT,UNIT1AND2,ANDTURKEYPOINTPLANT,UNIT3AND4(TACNO.M82809)ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~1.0ELIBEQSEThepurposeofthiscalculationistodetermineorupdateampacityvaluesforpowercablesroutedinSt.LucieUnit1andUnit2conduitswrappedwithThermo-Lagfirebarriersystemsaslistedinpreviouscalculations(Ref.2.3).Thisdocumentoutlinesthemethodologyusedtodeterminepowercableampacityincludingderatingfactors.Wrappedconduitderatingfactorsaredeterminedforexistingfirebarriersandforupgradedsystems.Existingcableprotectionwillbeupgradedoncertainconduitstomaintainrequiredlevelsofprotection.Thecablesintheconduitshavebeenevaluatedtorequireprotectionbecausenoredundantfunctionsoralternateconduitroutesexisttoeliminatetheneedforprotection(Ref.2.76-2.88).Byperforminganevaluationwithupgradedconduitwrap,cableampacitymarginsmaybeverifiedtoensureadequatecapabilitiesexistforprovidingpowertoaffectedelectricalloads.Revision1tothiscalculationaddsadiscussionoftheoperatingheatloads(Wattsperfoot)forthewrappedcablesandacomparisonofthecablesatSt.LucieplanttothecablestestedatOmegaLaboratoriesforTexasUtilities'omanchePeakPlant(Ref.2.26).HeatloadfactorsprovideanadditionalassurancethatcablesinstalledatSt.Lucieareenvelopedbythetestconfiguration.Revision2ofthiscalculationchangesthecabletabulationsforcablecurrentcarryingcapacitybasedonIEEEambientconditionswith'NoSun-0Ft/s'elocityairflow(Ref.2.75)andtoenhancethecalculationinresponsetoNRCquestionsfromtheSandiaNationalLaboratories'eviewtoclarifyexistingassumptionsandinputs(Ref.2.105).EngineeringreviewedtheampacityderatingtestsperformedbyUnderwritersLaboratoriesforFloridaPowerCorporation(FPC)forCrystalRiverNuclearStation(Ref.2.109)asrecommendedbytheNRCtodetermineapplicabilitytoSt.LuciePlant.FPCinstalledupgradestoThermo-LagfirebarriersusingMecatissfirebarriersystems.ThisisnotapplicabletoSt.Lucieinstallations;however,theinitial/baselinefiretestsprovideinformationonexistingThermo-Lagfirebarriers.TheFPCtestingconcludedthatforone(1)inchconduit,installationofThermo-Lag3-hourfirebarriersincreasedthecurrentcarryingcapacityofaffectedcables;i.e.,AmpacityDeratingFactor(ADF)of4.26%andAmpacityCorrectionFactor(ACF)of1.04.Forfour(4)inchconduit,onehourThermo-Lagfirebarriersalsoincreasedthecurrentcapacityofaffectedcables;i.e.,ADFof3.31%andACFof1.03%.Threehourfirebarriersonfour(4)inchconduitderatedthecurrentcapacityofaffectedcables;however,nottothedegreethathadbeenpreviouslyreported;i.e.,ADFof2.69%andACFof0.973.DeratingfactorsoriginallyusedforSt.LuciePlantcablesaremoreconservativethanthesevaluesandarethereforeboundedbytheFPCtesting.Revision0andRevision1ofthiscalculationlistedallaffectedcablesinprotectedconduitswhetherthecableprovidedpower,control,lowlevelsignalorotherfunctionwhichwasonlyintermittentlyenergized,suchasvalvepowercables.Revision2removedthecablesthatdonotrequireconsiderationofampacityderatingforcontinuousloading.ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~2.02.1FloridaPower5LightCompany,St.LuciePlantUnitNo.1,Appendix"R"SafeShutdownAnalysis,8770-B-048,Revision2.2.2FloridaPower5LightCompany,St.LuciePlantUnitNo.2,Appendix"R"SafeShutdownAnalysis,2998-B-048,Revision1.2.3FPLCalculationPSL-BFJE-93-002,Revision1,"AmpacityDeratingResponsetoNRCGL92-08forCableRoutedinConduitswithThermo-Lag330-1FireBarrierSystemCoating"FPLCalculationPSL-O-F-J-E-90-011,Revision2,"StationBlackoutHotStandbyLoads".2.5FPLCalculationPSL-O-F-J-E-90-012,Revision1,"StationBlackoutColdShutdownLoads".2.6FPLCalculationPSL F-J-E-90-015,Revision0,"SafetyRelatedBatteries1Aand1B".2.7FPLCalculationPSL F-J-E-90-016,Revision0,"SafetyRelatedBatteries2Aand2B".2.8FPLCalculationPSL F-J-E-90-017,Revision0,"BatteryChargers'lA,IAA,'IB,1BB,1ABKilowattInputDemand".2.9FPLCalculationPSL F-J-E-90-018,Revision0,"BatteryChargers2A,2AA,2B,2BB,2ABKilowattInputDemand".2.10FPLCalculationPSL F-J-E-90-019,Revision0,"Unit2BatteryChargers2A,2AA,2B,2BBand2ABSizing".2.11FPLCalculationPSL FJE-90-020,Revision4,"St.LucieUnit2EmergencyDieselGenerator2Aand2BElectricalLoads".2.12FPLCalculationPSL F-J-E-90-025,Revision0,"EvaluationofCalculationWHL-39,Rev.0".2.13FPLCalculationPSL FJE-90-028,Revision1,"Unit2LowDCSystemVoltageCalculation".2.14FPLCalculationPSL F-J-E-91-002,Revision0,"InstrumentInverters1A,1B,1C51DACOutputLoading".2.15FPLCalculationPSL F-J-E-91-004,Revision0,"Unit1HighDCSystemVoltageAnalysis".2.16FPLCalculationPSL2-FJE-91-007,Revision0,"PSL2-ComparisonofAnticipatedElectricalLoadingConditionstoEquipmentRatings".2.17FPLEvaluationJPN-PSL-SEMP-92-039,Revision1,"OperabilityAssessmentofThermo-Lag330-1".ampcalc.05/98 CALCULATIONNO.REV.SHEETNO~2.0(cont'd)2.18FPLCalculationPSL-2FJE-93-001,Revision1,"St.Lucie-Unit2ShortCircuit,VoltageDropandPSB-1AnalysisCalculation."2.19FPLCalculationPSL-OFJE-93-004,Revision0,"St.LucieStationBlackoutEmergencyDieselGeneratorTransientAnalysis".2.20FPLCalculationPTN-BFJM-96-005,Revision0,"FireBarrierAmpacityCorrectionFactors-ExtrapolationofTestResultsfor3HourBarrier".2.21EBASCOServices,Incorporated,CalculationEC-100,Revision1,"FireWrappedConduitsCableAmpacityDocumentforSt.LucieUnits1and2".2.22EBASCOServices,Incorporated,CalculationEC-192,Revision2,"MOVTOLHeaterSelectionCalculation".i2.23EBASCOServices,Incorporated,CalculationWHL-8,Revision7,"PowerCableAmpacityDocumentforSt.Lucie¹2".2.24EBASCOServices,Incorporated,CalculationWHL-25,Revision2,"InstrumentInvertersACOutputLoading".2.25IndustrialTestingLaboratories(ITL)ReportNo.84-10-5,DatedOctober,1984,"AmpacityTestfor600VoltPowerCablesInstalledinaFiveFootLengthofTwoInchConduitProtectedwithThreeHourFireRatedDesignofThermo-Lag330-1FireBarrierSystem."2.26OmegaPointLaboratories,"AmpacityDeratingofFireProtectedCables",ProjectNo.12340-94583,95165-95168,95246,ElectricalTesttoDeterminetheAmpacityDeratingofaProtectiveEnvelopeforClass1EElectricalCircuits,datedMarch19,1993;Preparedfor:TUElectric-ComanchePeakSteamElectricStation.2.27FloridaPower&LightCompany,St.LuciePlaritUnit1,Drawing8770-G-366,Revision34,ReactorContainmentBldgEl.45'-0Conduit,Trays&GroundingPlans.2.28FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-375,Sheet1,Revision22,ReactorContainmentBldgPenetrationDetails.2.29FloridaPower&.LightCompany,St.LuciePlantUnit1,Drawing8770-G-390,Revision20,ReactorAuxiliaryBuildingEl-0.50'onduit,TraysandGroundingSh.1.2.30FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-391,Revision27,ReactorAuxiliaryBldgEl-0.50'onduit,Trays&Grounding-Sh.2.2.31FloridaPower&LightCompany,St.LuciaPlantUnit1,Drawing8770-G-392,Revision35,ReactorAuxiliaryBuildingEl.19'-6Conduit,Trays&Grounding-Sh.1.ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~2.0(cont'd)2.32FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-393,Revision30,ReactorAuxiliaryBuildingEl.19'-6Conduit,Trays&Grounding-Sh.2.2.33FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-395,Revision20,ReactorAuxiliaryBuilding,El.43'-0,62'-0Conduit,Trays&Grounding.2.342.35FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-424S01,Revision6,FireProtectionReactorAuxiliaryBuildingEl-0.50'.FloridaPower&LightCompany,St.LuciePlantUnit1',Drawing8770-G-424S02,Revision7,FireProtectionReactorAuxiliaryBuildingEl.19.50'.2.36FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-424S03,Revision7,FireProtectionReactorAuxiliaryBuildingEl.43.00'.2.372.38FloridaPower&LightCompany,St.LuciePlantUnit1,Drawing8770-G-424S04,Revision4,FireProtectionReactorAuxiliaryBuildingEl.19.50'ndEl.43.00'.11FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-366,Revision14,ReactorContainmentBldg.El.45'-0Conduit,Trays&GroundingPlan.2.39FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-375,Sheet1,Revision13,ReactorContainmentBldg.PenetrationDetails.2.40FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-390,Revision16,ReactorAuxiliaryBuildingEl.(-)0.50'Conduit,Trays&GroundingSh.1.241FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-391,Revision17,ReactorAuxiliaryBuildingEl.(-)0.50'Conduit,Trays&GroundingSh.2.2.42FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-392,Revision15,ReactorAuxiliaryBuildingEl.19'-6ConduitTrays&Grounding-Sh.1.2.43FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-393,Revision14,ReactorAuxiliaryBuildingEl.19'-6Conduit,Tray&Grounding-Sh.2.2.44FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-395,Revision14,ReactorAuxiliaryBuildingEl.43'-0,62'-0Conduit,Trays&GroundingSh.2.2.45FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet2,Revision4,RABEl.19.50'onduitLayout.anpcnlc.05/98 i2.0CALCULATlONNO.(cont'd)REV.SHEETNO.~2.46FloridaPower5.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet3,Revision4,RABEl.19.50'onduitLayout.2.47FloridaPower5.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet4,Revision4,RABEl.19.50'onduitLayout2.48FloridaPower&.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet6J,Revision1,R.A.B.andR.C.B.Appendix'R'rappedConduitSummary.2.49FloridaPower5LightCompany,St.LuciePlantUnit2,'Drawing2998-G-411,Sheet7,Revision7,RABEl.19.50'onduitLayout.2.50FloridaPower5.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet8,Revision5,RABEI.19.50'onduitLayout.2.51FloridaPower5LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet9,Revision5,RABEl.19.50'onduitLayout.2.52FloridaPower5.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet10,Revision4,RABEl.19.50'onduitLayout.2.53FloridaPower5LightCompany,St.LuciaPlantUnit2,Drawing2998-G-411,Sheet13,Revision3,RABEl.19.50'onduitLayout.2.54FloridaPower8cLightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet14,Revision5,RABEl.19.50'onduitLayout.2.55FloridaPower5.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet15,Revision3,RABEl.19.50'onduitLayout.2.56FloridaPower5LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet16,Revision2,RABEl.19.50'onduitLayoutSh.16.2.57FloridaPower8cLightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet17,Revision3,RABEl.19.50'onduitLayoutSh.17.2.58FloridaPower5LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet18,Revision2,RABfl.19.50'onduitLayoutSh.18.2.59FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet19,Revision4,RABEl.19.50'onduitLayoutSh.19.ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~2.0(cont'd)2.60FloridaPower&.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet20,Revision7,ReactorAuxiliaryBuildingElectricalPenetrationAreaConduitLayoutSh.20.2.61FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet22,Revision9,RABEl.43.00'onduitLayout.2.62FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet23,Revision6,RABEl.43.00'onduitLayoutSh.23.2.63FloridaPower&.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet29,Revision9,RABEl.43.00'onduitLayoutSh.29.2.64FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet30,Revision7,RABEl.43.00'onduitLayout.2.65FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet34,Revision12,ReactorAuxiliaryBuildingEl.43.00'onduitLayoutSh.34.2.66FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet35,Revision9,RABEl.43.00ConduitLayout.2.67FloridaPower8cLightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet36,Revision7,ReactorAuxiliaryBuildingEl.43.00'onduitLayoutSh.36.2.68FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet37,Revision6,ReactorAuxiliaryBuildingEl.43.00'onduitLayoutSh.37.2.69FloridaPower&.LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet38,Revision7,ReactorAuxiliaryBuildingEl.43.00'onduitLayoutSh.38.2.70FloridaPower&LightCompany,St.LuciePlantUnit2,Drawing2998-G-411,Sheet39,Revision8,RABEl.43.00'onduitLayout.2.71FloridaPower&LightCompany,St.LuciePlantUnit1,CableandConduitLists,8770-A-328.2.72FloridaPower&LightCompany,St.LuciePlantUnit2,CableandConduitLists,2998-A-328.2.73FloridaPower&.LightCompany,St.LuciePlantUnitNo.1,ControlWiringDiagrams(CWD),8770-B-327series.2.74FloridaPower&.LightCompany,St.LuciePlantUnitNo.2,ControlWiringDiagrams(CWD),2998-B-327series.anpcnlc.05/98 CALCULATIONNO.REV.SHEETNO.~2.0(cont'd)2.75IEEEStandardPowerCableAmpacityTables,IEEEStd.835-1994,ApprovedDateSeptember22,1994.2.76EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-052,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaA."2.77EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-053,"ReviewofThermo-LagProtectedConduitsinFireArea8."2.78EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-054,"ReviewofThermo-LagProtectedConduitsinFireAreaC."2.79EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-055,"ReviewofAppendixR'ualificationofThermo-LagProtectedConduitsinFireAreaE."2.80EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-056,"ReviewofThermo-LagProtectedConduitsinFireAreaN."2.81EngineeringEvaluationSt.LucieUnit1,JPN-PSL-SEMP-94-064,"ReviewofThermo-LagProtectedConduitsinFireAreaO."2.82EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-057,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaA."2.83EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-058,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaB."2.84EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-059,QualificationofThermo-LagProtectedConduitsinFireAreaC.""ReviewofAppendix'R'.85EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-060,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaH."2.86EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-061,"ReviewofAppendixR'ualificationofThermo-LagProtectedConduitsinFireAreaI."2.87EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-062,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaM."2.88EngineeringEvaluationSt.LucieUnit2,JPN-PSL-SEMP-94-063,"ReviewofAppendix'R'ualificationofThermo-LagProtectedConduitsinFireAreaO."ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~2.0(cont'd)2.89StandardHandbookforElectricalEngineers,11thEdition.2.90WestinghouseElectricCorporationDrawing¹9552D65,Sheet3,"St.LucieUnitNo.2ElectricHydrogenRecombinerSolidStatePowerControllerSchem",EMDRACNo.2998-3031,Revision1~2.91St.LucieUnitNo.1,Cable&ConduitList8770-B-328,InstallationNotes,Sh.12,Rev.9.I2.92FPLSt.LucieUnit1Drawing8770-G-275Sh.1,Revision12,"6.9kVSwgr&4.16kVSwgrOneLineWiringDiagramSh.1".2.93FPLSt.LucieUnit1Drawing8770-G-275Sh.7,Revision12,"480VMotorControlCentersOneLineWiringDiagramSh.7".2.94FPLSt.LucieUnit2Drawing2998-G-275Sh.18,Revision5,"4.16kVSwitchgearNo.2A3and2B3OneLineDiagrams".2.95FPLSt.LucieUnit2Drawing2998-G-275Sh.19,Revision3,"4.16kVSwitchgearNo.2AB,No.2A4andNo.2B4OneLineDiagrams".2.96FPLSt.LucieUnit2Drawing2998-G-275Sh.35,Revision8,"480VMotorControlCenterNo.2B5(Sh.1)OneLineDiagram".2.97FPLSt.LucieUnit2Drawing2998-G-275Sh.41,Revision7,"480VMotorControlCenterNo.2B6Sh.2OneLineDiagram".2.98ICEAPublicationNo.S-19-81,NEMAStandardsPublicationsNo.WC3-1980,ApprovedSeptember19,1979,"Rubber-InsulatedWireandCablefortheTransmissionandDistributionofElectricalEnergy",Table2-4.2.99ICEAPublicationNo.S-66-524,NEMAStandardsPublicationNo.WC7-1988,"Cross-LinkedThermosetting-Polyethylene-InsulatedWireandCablefortheTransmissionandDistributionofElectricalEnergy".2.100ICEAPublicationNo.S-68-516,NEMAStandardsPublicationNo.WC8-1988,"Ethylene-Propylene-Rubber-InsulatedWireandCablefortheTransmissionandDistributionofElectricalEnergy".2.101EngineeringEvaluationSt.LucieUnits1&2,JPN-PSL-SEEP-94-108,Revision1,"EvaluationofExistingThermo-LagFireBarriers"ampcalc.05/98

'2.0CALCULATIONNO.(cont'd)REV.SHEETNO.0I2.102EngineeringEvaluationJPN-PSL-SENP-95-030,"ResponsetoNRCRequestforAdditionalInformationDated12/28/94".2.103NUCONInternational,Inc.,"PyrolysisGasChromatographyAnalysisof9Thermo-LagFireBarrierSamples,PerformedforFloridaPower5LightCompany"(Attachment2).2.104EPRIPowerPlantElectricalReferenceSeries,Volume4,"WireandCable",Section4.4.2.105NRCSecondRequestforAdditionalInformation-GenericLetter92-08,"Thermo-Lag330-1FireBarriers",St.LuciePlant,Units1and2,andTurkeyPointPlant,Units3and4(TACNo.M82809),DatedApril23,1998.2.106NRC"SAFETYEVALUATIONOFAMPACITYISSUESRELATEDTOTHERMO-LAGFIREBARRIERSATCOMANCHEPEAKSTEAMELECTRICSTATION,UNIT2(TACNO.M85999)",ToC.LanceTerry,GroupVicePresident,NuclearTUElectric,DatedJune14,1995.2.107NRC"CRYSTALRIVERUNIT3-REQUESTFORADDITIONALINFORMATIONREGARDINGTHERMO-LAGRELATEDAMPACITYDERATINGISSUES(TACNO.M91772)",ToMr.RoyA.Anderson,SeniorVicePresident,NuclearOperations,FloridaPowerCorporation,DateMay22,1997.2.108FLORIDAPOWERCORPORATIONtoU.S.NuclearRegulatoryCommission,"ResponsetoRequestforAdditionalInformationRegardingThermo-LagRelatedAmpacityDeratingIssues",DatedJuly3,19972.109NRC"SAFETYEVALUATIONADDRESSINGTHERMO-LAGRELATEDAMPACITYDERATINGISSUESFORCRYSTALRIVER(TACNO.M91772)",DatedNovember14,1997.2.110FPLCalculationPSL-BFSM-98-005,Revision0,"ELECTRICALAMPACITYCORRECTIONFACTORSFORTHERMO-LAGFIREBARRIERS".2.111FPLConstructionSpecificationMN-3.21,Revision8,"INSTALLATIONANDINSPECTIONGUIDELINESFORTHERMO-LAGFIREBARRIERMATERIAL".mapcalc.05/98 CALCULATIONNO.REV.SHEETNO.~3.03.1ReviewtheAppendixRSafeShutdownAnalysis(SSA)forcablesidentifiedasrequiringprotectionandconduitsidentifiedwithfirebarriers(Ref.2.1&2.2).3.2ReviewUnit1FireProtectiondrawings,8770-G-424S01,S02,S03andS04(Ref.2.34-2.37)forconduitsshownandlistedasprotectedorshownaseprotectionnotrequiredbyfurtherevaluation.Firebarrierswereinstalledontheeconduitspriortothere-evaluationwhichremovedprotectionrequirements(Ref.Table5.2).3.33.4ReviewUnit2AppendixRwrappedsummarydrawing,2998-G-411,Sheet6J(Ref.2.48)forconduitsshownandlistedasprotectedorshownaseprotectionnotrequiredbyfurtherevaluation.Firebarrierswereinstalledontheeconduitspriortothere-evaluationwhichremovedprotectionrequirements(Ref.Table5.35.5.4).fReviewUnit2racewayandconduitlayoutdrawingsforconduitswrappedwithThermo-Lag330-1firebarriersforRG1.75separation(Ref2.38-2.47,2.49-2.70).3.5IdentifycablesinconduitscoveredwithThermo-Lag330-1firebarriersystemsnotpreviouslyidentifiedinSSAs;i.e.,RG1.75andcablesinconduitsdesignatede.3.6Determinecablefunctionfromreviewofassociatedcontrolwiringdiagramsandcompilelistingsofpowercablesaffected.Signalandcontrolcablesdonotcarrysufficientcurrenttogenerateheatinthecableandreduceampacity.Powercablestovalvesareexcludedduetotheshortdurationofvalveoperation.3.7ReviewcalculationsissuedbyEBASCO,Services,Inc.andFPLEngineeringtodetermineloadsandcurrentsusedforaffectedpowercables.Selectworstcaseloadingfrombackgroundinformationanddeterminewhichloadswillbeappliedtothecablescontinuouslyorlongerthanthetimewhichwillheatthecablefromtheloadcurrent(Ref.2.3-2.16,2.18-2.24).3.8Formotors,determinekilovolt-amperes(KVA)ratingfromhorsepowerratingandthencalculatecurrentbasedonlinevoltage(480or4160volts)todevice.Motorkilovolt-ampandefficienciesarediscussedinAssumption4.10and4.11.3.9Obtainderatingfactorsformultiplepowercableinstalledinthesameconduit,thenumberofcurrentcarryingconductorsintheconduit(C/C)andtheAmpacityCorrectionFactor(ACF)calculatedinPSL-BFSM-98-005(Ref.2.110)~3.9.1The(C/C)deratingfactoraddsapercentagebasedontheadverseeffectofmutualinductanceofenergizedcurrentcarryingconductorsandtheeffectsonotherconductorswithinthesameraceway.Forconduitswithmorethanthree[3]energized'conductors,themutualinductancescausethecurrenttomoveawayfromotherenergizedconductorswhichcreatesinductiveheatingandlosseswithintheconduit.ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~3.03.9.2InresponsetotheNRCrequestforadditionalinformation(Ref.2.105),anewfirebarrierheattransfercalculation(Ref.2.110)wascreatedspecificallyforSt.Luciefirebarrierinstallations.ThiscalculationdeterminesanewACFbasedonfirebarriertestingperformedforFPCCrystalRiverStation.ThisrevisedACFwasreviewedagainstexistingACFandaddedinTables5.5.a,5.5.band5.5.c.3.9.3ICEA(InsulatedCableEngineersAssociation)cabledatatablesgiveampacities[Ic]forthreeconductor(3/c)ortriplexcablesinaconduitinair.Revision1tothiscalculationusedthecableampacityforcablesinconduitinfreeairwith'NoSun-2Ft/s'irvelocitybasedonoperatingconditionsintheReactorAuxiliaryBuildingsofSt.Lucieplant.InresponsetoNRCconcernsinthe1998RAI(Ref.2.105),forRevision2thecurrentcarryingcapacityofindividualcableswaschangedto'NoSun-0Ft/s'irvelocity.Thisambientconditionisforcablesinstalledindoorswithnoventilation.Changingtheambientconditionsreducedthecablecurrentcapacityamaximumof4.4%forsize00[1/c¹2/0AWG].Thecableampacitiesarederatedwhenthenumberofconductorsinaconduitexceedsthree(3).Cableampacityismultipliedbythefollowingcorrectionfactorforinductiveheating(Ref.2.104):TotalNumberAmpacityCorrectionEarthM~arati~34-67-241.000.800.703.10Calculatederatedampacity(I')foreachpowercable.(I')=lcx(ACF)x(C/CDerating%)3.11Determinemarginpercent(%)betweenratedcablecapacityandthederatedampacity(I'):%Margin=(DaratedMm~-1)x100LoadAmpsRequired(l)3.12Operatingheatloads(Wattsperfoot)arecalculatedasfollows:Watts/foot=(¹ofconductors)(resistanceper1000ft)(loadcurrent)~/1000Theheatloadsforthederatedcurrentloadona.,cabletypeiscomparedtotheoperatingheatloadfortheactualcurrentloadonacabletoassurecabledesignisnotexceeded.ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~3.13Cableresistancevaluesaregivenatatemperatureof25'C.Table6-1(attached)providesthefollowingtemperatureconversionequationforcopperconductors:R1=R2(259.6/[234.5+T2]);,where;R2=R1([234.5+T2]/259.5)R2=R1([2345+90]/259.5)=R1(1.2505)R1=resistanceat25'CR2=resistanceatoperatingtemperatureT2=cabletemperature;i.e.,90'C4.04.1FireprotectionwrapusedatSt.LuciestationistheThermalScience,Inc.(TSI)Thermo-LagFireBarrierSystem.Typically,thehalf-round"clamshell"coversappliedoverconduitshaveanominalthicknessof6/8"forone(1)hourratingsandoneandone-quarter(1-/i)inchforthree(3)hourratings.InstallationofallrequiredfirebarrierswasreviewedandconfirmedorupgradedtobeinstalledperConstructionSpecificationMN-3.21(Ref.2.'111).4.2TheoriginaldesigncalculationsforderatingfactorsbasedonheattransferdeterminedthatThermo-Lagbarriersreducedampacitybyapproximately12%,however,forconservatism,aderatingfactorof15%wasselectedforpowercablesizing(Ref.2.21).4.3Controlandinstrumentationcablesarenotsubjecttoampacitylimitsduetothesmalllevelsofcurrentused.Voltagedropinthecontrolcircuitisusuallythelimitingfactorforcabledesignandnormallyrequirestheinstallationoflargercablestoperformrequiredfunctions.Thisappliestocontrolandsignalcablesinconduits,cabletraysandenclosures.Thecontinuousdevicecurrentloadwasusedasabasisforthiscalculation.Momentaryloadrequirements,i.e.,thoselastinglessthan1minute,arenotconsidered.Loadsofthisdurationarenotsustainedlongenoughtoinduceheatintheaffectedpowercables.Abnormallyhighlevelsofcurrentfordevicesaredetectedbyprotectivedevicesandthecomponentisdesignedtobeseparatedfromthepowersourcebeforetheconditiondamagesthecomponentorcable.4.5FireprotectionbarriersinSt.LucieUnit1andUnit2wereoriginallyinstalledoncableconduitsandconduitboxesonly.TherearenopowercabletrayswrappedwithfirebarriersattheSt.Luciestation.However,sectionsofconduits11001F-3",11001H-3",21001F-4"and21001H-4"areroutedina"banked"configurationforportionsoftheirroute.Therewerenotestedconfigurationsforbankedconduitruns;therefore,theampacitycorrectionfactorforcabletraywereused.Thebankedconduitsareinasingleplane,theconduitsizeof4inchesissimilartothedepthofcabletrayusedatSt.Lucieandtherequiredprotectionisforone-hour(1-hr)withdetectionandsuppression.Usingthecabletrayderatingfactorforthree-hour(3-hr)firebarriersgivesamoreconservativeestimateofthecurrentcarryingmarginfortheaffectedcables(11001F,11001G,11001H,11001J,21801W,21801X,21801Yand21801Z).aepcalc.05/98 II f//CALCULATIONNO.REV.SHEETNO.~4.04.6ThiscalculationappliestocablesinprotectedconduitsinsideandoutsidecontainmentofbothSt.Lucieunits.Theambienttemperatureforcablesinsidecontainmentisassumedtobe50'C.Outsideofthecontainmentbuildings,ambienttemperaturesareassumedtobe40'C(104'F).OperatingtemperaturesintheRABarenormallycloserto30'C;however,forconservatism,thehighertemperaturewillbeused.4.7PowercablesutilizedinSt.Luciestationareratedforoperationat90'Cconductortemperature.Thehighertheinsulationtemperaturerating,thegreatertheallowableampacityforagivenconductorsize.4.8ConduitsprotectedinSt.LucieUnit¹1use(3)hourbarrieroneandone-quarter(1-'/i)inchnominalthicknessmaterial.ConduitsprotectedinSt.LucieUnit¹2maybeprotectedwithone(1)hour5/8"nominalthicknessmaterialorthree(3)houroneandone-quarter(1-~/i)inchnominalthicknessmaterial.Upgradestothefirebarriersystemsforone-hour(1-hr)protectionwasprovidedbyusingnominal5/8"thicknessThermo-Lag330-1pre-shapedhalf-roundsectionsoverlaidwith3/8"nominalthicknessThermo-Lagsections.Three-hour(3-hr)upgradesisprovidedbyusingoneandone-quarter(1-~/~)inchnominalthicknessThermo-LagbasematerialwithoverlaysofThermo-Lag770-1.Thenumberof770-1wrapsisdependentonconduitcablefillpercentages.4.9Conductorcurrentvaluesfor600voltcablesarebasedonlEEEstandardvalues(Ref.2.75)forconductorsrated600to5000volts,90'C(194'F)ambienttemperaturewithnosolarheatingandzero(0)ft/sventilation/airflow.4.10Whereloadvaluesareonlyknowninkilovolt-amperes(KVAs),thecurrentisdeterminedby;amps(singlephaseACorDC):P3xVamps(threephaseAC)ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~4.04.11TheampacitytestingperformedforComanchePeakPlantwasperformedforconduitsranginginsizefrom3/4inchesto5inches.ConduitscoveredwithThermo-Lag330-1firebarriersatSt.Iucieplantrangefrom1-1/2"to5".Theheatload(I'Rloss)fromeachcablesectionisincludedinTables5.5a,5.5b.5.5.5c.Theseheatloadswerecomparedtothetables/chartsusedbyTurkeyPointwhereheatloadswerecomparedtotheOmegaPointLaboratorytestforTexasUtilitiesComanchePeakPlant(Ref.2.20).FromthisitisconcludedthatthetestsamplesutilizedarerepresentativeoftheconfigurationatSt.Lucie.4.12TherearenoinstalledcabletraysectionsatSt.LucieprotectedbyThermo-Lagfirebarriers.However,thereisalargepullboxinstalledinSt.LucieUnit2elevation(-)0.50',box8243'I-SAwhichwasreviewedduetosize.Theboxisa42"x42"x12"enclosureusedasapullboxforthepowercablestoAFWpump2A.Thehorizontalsurfaceonthebottomoftheenclosureisexpectedtobemostaffectedbyfiresinthe12"boxdepth.BecausetheoriginaltestperformedbyTSIincludeda12"cabletraysectionandtheComanchePeaktestincludeda24"cabletraysection,thelargeenclosureinSt.LucieUnit2isconsideredboundedbytheprevioustests.Revision2toPCM97040,toupgradetosouthwallofthe28.67'levationoftheReactorAuxiliaryBuilding'A'ablePenetrationAreaExtension(Loft),willaddashortsectionofThermo-LagfirebarriertocabletrayC17atplanpoint(2116),nearcolumnRAI-RA3.ThisisacontrolcabletrayandisnotaffectedbytheinstallationofThermo-Lagfirebarriers.Controlcablesarenotrequiredtobeevaluatedforcableampacityderatingduetolowlevelofcurrentnormallyused.4.13lnaccordancewithReference2.101,thethicknessoftheThermo-LagandthegapswithintheThermo-Lag,foundduringtheinspectionofthecorrectlyinstalledconfigurationsfortheUnit152onehourandthreehourbarriers,wereinaccordancewiththeinstallationinstructionsofTSI.Therefore,theconfigurationoftheThermo-LagbarriersatSt.LucieareboundedbytheTSIinstallationinstructions.4.14FPLparticipatedinagenericindustrytestprogrammanagedbytheNuclearEnergyInstitute(NEI)whichincludedverificationofthechemicalcompositionofThermo-Lagmaterial.AspartoftheNEItestprogram,apyrolysisgaschromatographicanalysiswasusedtoqualitativelycomparetheorganicconstituentsofvariousThermo-Lagsamples.St.Lucieprovided(9)samplesfrominstalledandwarehouseThermo-Lagmaterials.AIIofthesamplestestedatNUCONLaboratoryinColumbus,Ohiowerefoundconsistentintermsofchemicalcomposition(Ref.2.103).ResultsofthetestingprogramweresentdirectlytotheNRCbyNEIletterdatedOctober3,1995.PerReference2.102,theNRCstatedthattherewasessentiallynodifferencesbetweenthesamplesfordifferentlots,areasofthecountryandtheyearthematerialwaspurchased.cuapcslc.05/98

'CALCULATIONNO.REV.SHEETNO.~4.04.15ApplyingtheRevision2ampacitycorrectionfactorsfor3-hourfirebarrierstocable110028(BatteryCharger18)reducedthepercentmargintoapproximately2%.Thiswasacceptablewithexistingderatingfactorsbutdidnotallowforanyothervariablesorpotentialderatingfactorincreases.AreviewofthebackgroundfortheloadcurrentofthiscableshowedthatthecalculationforsizingthebatterychargersandRevision1ofthismadetheassumptionthatforworstcaseloading,thechargerswereassumedtobein'current-limit'onditions(315Amps).Aftertheinitial60secondsfollowingaI.OOP,thechargersareloadedontherespectiveemergencydieselandanycurrentnotrequiredbythedcsystemisusedtorechargethebattery.Currentdemandtorechargethestationbatteriesisrninirnalduetotheshortdurationofthedischarge.Basedonsystemloading,onlyapproximately(6)Ampere-hoursisdischargedfromthebatterywhichrepresents0.25%ofthebatterycapacity.Inactualapplication,removing0.25%capacityfromthebatteryresultsinasmalleradditionalcurrentdrawfromthechargers.Normalrechargingtakesplaceoveralongerperiodofhours,typicallybetween8-10hours(Ref.2.85,2.9).Basedonthebatteryloadingcalculation(Ref.2.6),thebattery/chargerwillseeapeakdemandfollowingtheLOOPof228Ampereswhichwillfurtherdiminishafterthefirst(30)minutes.Usingthisvalueresultsinamarginof39.65%forcables110028and116018..Inaddition,withinstalleddetectionandautomaticsuppression,protectionforconduit110028isonlyrequiredtobefor1-hour.CalculationPSL-BFSM-98-005(Ref.2.110)concludedthat3-hourwrapona4"conduitextrapolatedfor1-hourprotectionhasaACFof0.952.WiththisACF,thecableampacitymarginfor110028becomes64.09%.ToreplacetheexistingThermo-LagwallaroundFireZoneC-578,Train'8'CEquipment/InverterRoom,firebarrierswereremovedfrom110028andBatteryCharger188conduit116018,cable116018,waschosenbereliedonforsafeshutdowninthisarea.ThecablestoCharger188arephysicallythesamesizeasCharger18cablesandtheconduit,116018,isroutedmoreconvenientforprotecting.ampcalc.05/9>

i'CALCULATIONNO.REV.SHEETNO.~5.05.1ThedocumentslistedinSection2.0ofthiscalculationwerereviewedtoidentifythecableswrappedwithThermo-Lagwhichmustbeconsideredforampacityderatingfactors.5.2BillofMateriallistingswerereviewedforcablesidentifiedin5.1todetermineindividualcablesinsulationvoltageratingandintendedgenericuse,i.e.,powerorcontrolandtabulatedinTable5.1.5.3FrominformationlistedindocumentsofSection2.0andappropriatebillsofmaterial,Tables5.2,5.3and5Aweregeneratedtoidentifyaffectedcablesinwrappedconduits.Thesetablesidentifycabletypes,usagevoltageclass,insulationvoltagerating,adescriptionofthecableloadforpowercablesandthenumberofcurrentcarryingconductorsineachconduit.5.4Motorloadkilowattandcurrentratingsvaryinpriordocumentsdependingonbasevaluesused.Forthiscalculation,currentvaluesformotorsweredeterminedfromnameplatelistingsonreferencedOne-LineListdrawings.5.5FromthisinformationandSection2.0;Tables5.5.a,5.5.band5.5.cwerecreated.5.6Duringthe1997refuelingoutagesforbothSt.Lucieunits,cablesinconduitspreviouslyrequiredtobeprotectedwerereworkedorreroutedintoareaswherethecableswerenolongerrequiredtobeprotected.St.LucieUnit1PCM97034reroutedcables11001F,11001G,11001Hand11001JwhichconnectStationServiceBattery1AtoDCTestPanel1Afromelevation19.5'ommonHallwayand'B'lectricalCablePenetrationareas,FireZonesC55WandC-78,toelevation43.0'romthe'A'atteryRoom,throughthe'A'witchgearRoomtotheCableSpreadRoomwherethe'A'estpanelislocated,FireZonesA60andB57.Thecableswhichconnectthe'A'Cbusthroughthemanualtransferswitch,inverter1AandtoInstrumentBus1lVIA,11009G,11009Jand11009Q,wererelocatedfromthe19.5'ommonHallway,FireZoneC55W,totheCableSpreadRoom,FireZoneB57,wheretheequipmentislocated.St.LucieUnit2PCM96143relocatedcables21001A,powertoBatteryCharger1AfromMCC1A5,cables21810Aand21756Ywhichsupply125voltdcpowerto480voltSwitchgear1A2and4160voltSwitchgear1A3forbreakercontrolandoperation,andcables20645Cand20646AwhichsupplypowertomiscellaneousequipmentfedfromRTGBoards105and106.Thesecableswererelocatedoutofthe19.5'ommonHallway,FireZoneC55Wandthe'B'witchgearRoom,FireZoneC56,intothe'A'CEquipment/InverterRoomthroughtheCableSpreadRoom,FireZoneB52.TheabovecableshavebeenremovedfromTables5.5a,5.5bor5.5c.ampcalc.05/98

'05.0CALCULATIONNO.(cont'd)REV.SHEETNO.~St.LuciePlantCableTypesSt.LucieUnit1:ReferenceUnit1BillofMaterials,8770-B-325BOMCableIdentificationD02-02D03-03,D03-06,D03-07,D03-08D03-12D15-06D26-02,D26-0652-08BOMSheetSht.D2-1Sht.D3-1Sht.D3-9S}lt.D26-01Sht.D52-01RevisionNo.DescriptionPowerCable,600VCrosslinkedPolyethylenePVCJacketforOverallJacket(TeXLPP)ControlCable,600V,CrosslinkedPolyethylenePVCJacketforOverallJacket(TeXLPPP)ControlCable,600V,CrosslinkedPolyethylenePVCJacketforOverallJacket(TpeXLPPP)PowerCable,5000V(Re.CARS)PowerCable,600V,HTKeriteInsulation,FROverallJacket(TyeHT)ControlCable,600V,FRKeriteInsulation,FROverallJacket(TeMCCC)St.LucieUnit2:ReferenceUnit2BillofMaterials,2998-B-325BOMCableIdentificationD15-01,D15-02,D15-03D26-02,D26-03,D26-04,D26-06,D26-07,D26-08D26-10D52-03,D52-08D54-05,D54-06,D54-07D61-05,D61-06D98D99BOMSheetSht.D11-01Sht.D26-01Sht.D26-09Sht.D52-01SIlt.D54-01SIlt.D61-01RevisionNo.3DescriptionPowerCable,5000V,CrosslinkedPolyethylene,LeadSheath5NeoreneOverall(TeXLPSLN)PowerCable,600V,HTKeriteInsulation,FROverallJacket(TypeHT)PowerCable,600V,HTKeriteInsulation,FROverallJacket(TeLVPC)ControlCable,600V,FRKeriteInsulation,FROverallJacket(TypeMCCC)PowerCable,600V,Non-shielded,HT,KeriteInsulationFRJacket(TeLVPC)SinalRe:D26,D52,D54Re:D26arapcalc.05/98 CALCULATlONNO.REV.SHEETNO.~6.0(cont'd)ABLE5.2St.LucieUnit1CablesinConduitswith(3)HourThermo-Lag330-1FireBarrierSystemProtectionCABLECONDUITBM/IdTypeUoltInsulationDevicec/c10504A10832A.11601B11002F11002611002H11002J11002M11002N11002P11002Q10504A1155211601B11002F,1488511002F,1488511002H,1488611002H,1488611002M11002M11002P11002PD26-06D15-06D02-02D02-023-1/c¹23-1/c¹4/02-1/c¹5001-1/c¹500ClassRatingM600U5000M600M600D02-02D02-02D02-02D02-021-1/c¹5001-1/c¹5001-1/c¹5001-1/c¹500M600M600M600M600D02-021-1/c¹500M600D02-021-1/c¹500M600D02-021-1/c¹500M600HVE-9BICWP1ABattChgr1BB125VDCBus1BBatt.LeadsIIIII(I1IIIIIIIIIIII125VDCBus1BBatt.Leads2222hlQZES:Reference8770-B-328,SheetBA,Revision2,"CableandConduitNotes".C-controlorlowvoltagepower(i.e.,120volttoground)M-.-mediumvoltage(i.e.,480voltnominal)c/c-numberofcurrentcarryingconductorsinsameconduitListInstallationampcnlc.05/98 CALCULATIONNO.REV.SHEETNO.~5.0(cont'd)St.LucieUnit2CablesinConduitswith(3)HourThermo-Lag330-1FireBarrierSystemProtectionCABLECONDUITBM/IdTypeVoltInsulationc/c20251A20504A20629A20834A20931A20948F20956H20990H21001A21009E21009J21009K21009U21608B21801A21801W21801X21801Y21801Z25071P20504A203362169625019Y20948F22020Q25019Y21001A21009G21009J28161J21009H22020Q21801A21001F,28058J21001F,28058J21001H,28058D21001H,28058DD15-03D98-01D15-06D15-03D26-06D15-01D98-01D26-04D26-04D26-04D26-04D99-04D26-04D98-01D26-04D26-02Class3-1/c¹4/0V3-1/c¹4/0P3-1/c¹4/0V3-1/c¹4/0V2-1/c¹2P3-1/c¹500V2-1/c¹4/0P2-1/c¹2/0P3-1/c¹2/0P2-1/c¹2/0P2-1/c¹2/0P2-1/c¹2/0P2-1/c¹2/0P2-'1/c¹4/0P3-1/c¹2/0P2-1/c¹500PD26-022-1/c¹500PD26-022-1/c¹500PD26-022-1/c¹500PRating5000LPSIP2A600(D26-03)2HVE-9B5000AFWP2A5000ICWP2C600Swgr2A3-55000Xfmr2B2/2BS600(D26-03)DG2AExcCub600Swgr2A2-6600BatChgr2A600InstBus2MA600Inv2A600(D26-04)Inv2C600InstBus2MC600(D26-03)DG2ACP600BatChgr2AA600DCBus2AADCBus2AA600DCBus2AADCBus2AA600DCBus2AADCBus2AA600DCBus2AADCBus2AA4hKEESReference2998-B-271,Sheet2-14,Revision2,"ElectricalGeneralInstallationNotes".L-lowlevelsignal,notpowerC-controlorlowvoltagepower(i.e.,120volttoground)P-mediumvoltagepower(i.e.,480voltnominal)V-highvoltage(i.e.,4160voltnominal)c/c-numberofcurrentcarryingconductorsinsameconduit()D-¹(cablesize)duplexconstruction()T-¹(cablesize)triplexedconstruction()STP-¹(cablesize)shieldedtwisted-pairampcnlc.05/98 CALCULATlONNO.REV.SHEETNO.~5.0(cont'd)HRBLER4St.LucieUnit2CablesinConduitswith(1)HourThermo-Lag330-1FireBarrierSystemProtectionCABLECONDUITBM/IdTypeVoltInsulationc/c20292A20597J20597N20630A20833A20946F20948A21010U21118A21643G21643R25050W20292A20597N20597N28093C2155322006S20948A21010H22020Q22016H21643R25067MD26-08D26-03D99-01D15-03D15-03D15-01D15-01D26-04D98-10D26-10D26-10D26-041-3/c¹12T4-1/c¹4/03-1/c¹4/03-1/c¹4/Q3-1/c¹4/03-1lc¹5003-1/c¹5002-1/c¹2/02-1/c¹42-1/c¹42-1/c¹42-1/c¹2/0ClassRatingP600P600P600(D26-03)V5000V5000V5000V5000P600P600(D26-10)P600P600600HydzPmp2B1-TH2Recomb7H2Recomb7AFWP2B3ICWP2B3Xfmr2A53Xfmr2B2/2B53InstBus2MD2DG2AAnn6RM/RS26-12RM/RS26-182125VBusMD3ampcalc.05/98 CALCULATlONNO.REV.SHEETNO.~5.0(cont'd)St.LucieUnit1(3)HourThermo-Lag330-1FireBarrierSystemWrapRef.CableAffectedDeviceCableSizeCableHp/LoadResistanceKVAAmps/1000ft(lt)(Ref2.98-2.100ACF(Ref.2.20)ACF'Ref.C/C2.110)C/CDeratingCableAmpacity(ic)IEEERev2DeratedDeratedAmpacityAmpacity(I')(I')Rev2MaximumDeratedHeatLoadwatts/ft)ActualHeatLoad(Watts/ft)MarginMarginRcv22.9310504AHVE-9B3-1/CA20.21134049.80.97331.011289.6108.9765.551.5291.02122.402.611002F11002G2.9210832A2.611601BICWPIACHRGRIBB125VDCTESTPNLIB3-1/CI4/02-1/CF500l-l/Cf500II/CgSOO0.02780.027868KVA2282130.065560081.80.80.69.9733.942.5121.01.01.0398398190.4231.574318.4374.12549.24405.967.6724.631.295.525.34143.95185.89111.3064.09114.7090.592.611002H11002J125VDCTESTPNLIBI-I/Cf5001-1/Cf5000.0278213.69.5121.0398549.24405.9624.635.34114.7090.592.62.611002M11002N11002P11002125VDCBUSIB125VDCBUSIBl-l/C//500l-l/C$500l-l/Cf500l-l/Cft5000.02780.0278213213.80.80.942.9421.01.0398398318.4374.12318.4374.1224.6324.635.34,5.34114.7075.64114.7075.64hlates4batterychargersarecurrent-limitedto315ampsoutput,protectedconduit11601Bwithcable11601BtoCharger1BB,sameloadas11002B1.Conduitsprotectedwith3-hourwrapnotrequiredandnotupgraded.Cables10504Aand10832A(AFC'0.973)Ref.2.110anpcalc.05/98 CALCULATIONNO.REV.SHEETNO.~5.0(cont'd)Iah~A~St.LucieUnit2(3)HourThermo-Lag330-1FireBarrierSystemWrapRef.CableAffectedDeviceCableSizeCableResistance/1000ft(Ref2.98-2.100Hp/KVALoadAmps(lr)ACF(Ref.2.20)ACF'Ref.2.110)C/CC/CDeratingCableAmpacity(lc)IEEERev2DeratedDeratedMaximumAmpacityAmpacity(I')DeratedHeat(I')Rev2Load(Watts/It)ActualHeatLoad(Watts/II)%Margin%MarginRev22.9420251A2.9720504A2.9420629ALPSIP2A2HVE-9BAFWP2A3-1/C//4/03-1/Cg4/03-1/C$4/00.06550.06550.065540050606535047.80.80.800.9520.9520.9521.01.01.0190.4226.5767.6725190.4226.5767.6725190.4226.5767.67250.49130.83020.4341295.20320.43353.15248.58382.082.9520834AICWP2C3-1/Cg4/00.065560082.4.800.9521.0190.4226.5767.67251.3342139.81174.972.192.942.720948F20956Ha21118A21608B2.720931ASWGR2A3STASVCXfinr2B2/2BSDG2AEXCCUB2-1/Cg23-1/CF5002-1/CI4/02-1/CS42-IICI/'4IO0.21130.02780.06551933KVA50.0negligible6.0.800.5.80268.800.9520.9520.9520.801.00.80112398318.4378.896152.32181.26089.23709.820871.6885.29924.73900.00020.98250.01411487624.1816959.8441.38216.16262.522.1320990HSWGR2A22-1/C//4/00.06550.5.800.9520.80152.32181.26086.54723151636152.162.2421009E2.621009JINVTR2ACIn)2-1/Ck2/0INSTBUS2MA2-1/CIt2/00.10530.105310KVA24.7.80.800.9520.9521.01.01731734.4157138.4164.696138.4164.6964.41570.12850.288348b23566.79291.35345.12.2621009K2.2421009U2.1321801W21801XINVTR2CCIn2-1/Ctr2/0INSTBUS2MC2-1/Cg2/0125VDCBUS2AA2-1/Cf5002-1/C$5000.10530.10530.027810KVA.8028.4.80278.690.952V0.9520.9521.01.00.80173173796138.4164.6964.4157138.4164.6964.4157439.392606.233623.45470.28830.16998.5940291.35409.8665.20345.12479.92118.072.1321801Y21801Z125VDCBUS2AA2-1/Ck'5002-1/C$5000.0278278.690.9520.80796439.392606.233623.45478.594065.20118.07ampcalc.05/98 CALCULATIONNO.REV.SHEETNO.~5.0(cont'd)St.LucieUnit2(1)HourThermo-La330-1FireBarrierSstemWraRef.CableAffectedDeviceCableSizeCableResistance/1000ft(Ref2.98-2.100HP/LoadACFKVAAmps(Ref.(lt)2.20)ACF'Ref.2.110)Rev.2CICC/CDeratingCableAmpacity(Ic)IEEERev2DentedAmpacity(I')DeratedMaximumActualHeatAmpacity(I')DeratedHeatLoadRev.2Load(Watts/ft)(Watts/It)%Margin%MarginRev22.9620292A2.1720597J2.9020597N2.9420630A2.9420833AHYDRAZINEPUMPH2RECOMBAFWP2BICWP2B1-3/Ctr12T4-1/C//4/03-1/C8'4/03-1/C/14/03-1/C//4IO2.10580.06550.06550.065534.660082.4.8975KVA35047.89.94.94.94.9431.070.7031.031.028148.274211.82211.8226.32156.6044.2110.869.509.500.13373.71390.43411.3342461.0970.98367.72166.78472.1774.00376.00171.502.1920946F2.94STA.SVCXfmr2AS3-1/C//5000.02781933KVA268.89.9431.0398354.22374.1211.435.9938.1539.602.1920948A2.942.2421010U2.1321118ASTASVCXfmr2B2/2BS3-1/Ct/500120VACINSTBUS2-1/CI/2/02MDDG2AAnn2I/C4'40.02780.10530.33641933KVA10KVA268.891.028.4.89.94.94.9431.021.060.8039817385354.22153.9760.52374.12162.6211.435.470.16990.00238.15467.22616639.60472.616292.002.2221643GRM/RS-26-12-1/C$40.33642.5.89.9421.08575.6579.94.130.00423032.803096.002.2221643R2.72SOSOW2.24RM/RS-26-182-1/CI/4125YDCBUSMD2-1/C//2/00.33640.10532.5.891.5.94.9421.031.08575.65153.9779.9162.624.138.200.00420.0013032.80106393096.0010741.33anpcalc.05/98 CALCULATIONNO.REV.SHEETNO.~6~0E1KULXSTheresultsshowninTables5.5.a.,5.5.b.and5.5.c.indicatethatwhenusingnewerampacitycorrectionfactor(ACF)asdeterminedincalculation,PTN-BFJM-96-005,forupgradedThermo-Lagfirebarrierinstallations,sufficientmarginexistsbetweenoperatingcableloadsandcablecurrentcarryingcapacity(ampacity).Thiscalculationrevisitedpriorcalculations,andAppendixRandRG1.75documentstoeliminatetheconservatismthatexistedintheearliercalculationswhenconsideringtheloadonaspecificcable.Ampacityvaluesusedinthiscalculationareloadsthatexistlongerthan60seconds;i.e.,donotincludethebatteryorvalveloadsduringthefirstminutewhicharereducesignificant'lyforlongeroperation.Aslistedabove,thesmallestmarginforSt.LucieUnit1Thermo-Lag(3)hourupgradedwrappedconduitsis~>.Thismarginisforthe125voltDCpowercablesfromBattery1AtoBatteryTestPanel1Aforsupplying125voltDCbus1A.Loadsonthesecablesaresteadystateloadsafterthefirstminuteofoperationwhenthecableissubjectedtocontinuousloads.Loadsonthebatterycablearehigherinthefirstminuteduetocyclingofvalvesandothermotors.ThesmallestUnitNo.2marginfor(3)hourupgradedwrappedconduitsisM~Qforthe4160voltpowerfeedercablestoStationServicesTransformers2B2/2B5.Thisvaluecontainssomeconservatismsinceitassumes100%transformerloading.For(1)hourupgradedwrappedconduitsinSt.LucieUnit2,thesmallestmarginis39~forthe4160voltfeedtoStationServicesTransformer2A5.Thisvalueincludesconservatism,similartothemargintoTransformers2B2/2BS,sinceitassumes100~transformerloading.TheoriginalcalculationsforcablederatinginSt.LucieUnit1andUnit2usedavalueconsideredconservativeat15%.ThiscalculationhasdeterminedthatacceptablepowercablemarginsexistforinstalledcablesinSt.LuciePlantUnit1andUnit2whenusingderatingvaluesof11%for(1)hourfirebarriersand20%for(3)hourfirebarriersassumingtheinstallationofThermo-Lag330-1andThermo-Lag770-1upgradefirebarriersystems.Arevisiontothecablesinconduits21001F-4"and21001H-4"wasincludedinRevision1tothiscalculation.Theseconduitswerefoundtobeinabankedconfigurationforpartoftheirroute.Forconservatism,theampacityderatingfactorforcabletrayswasappliedtotheseconduitsections.Theresultantampacitymarginchangedfrom91.53%to65.20%usingthecabletrayderatingfactorof31%'.ampcalp.05/98 woI CALCULATIONNO.REV.SHEETNO.~6~0RRZULXRRevision1concludedthatinstalledconduitconfigurationsatStLucieplantareboundedbytestperformedatOmegalaboratoriesforTexasUtilities'omanchePeakNuclearPlant.Revision2tothiscalculationresultedinlowermarginsbasedonthecablecurrentcarryingcapacityforambientindoorconditionsofNoSun-0Ft/s'irflow/ventilation.Inaddition,fieldwalkdownsforenhancementsoftheThermo-Lagfirebarriersonconduits11002F-3"and11002H-3"intheUnit1ReactorAuxiliaryBuildingCableSpreadingRoom,identifiedsectionsoftheseconduitswhereacommonenclosureextendedoverbothconduits.Cablesintheseconduitswerederatedusingtheexistingcabletrayderatingfactorstodeterminemargins.AsaresultoftherecalculationofcircuitsprotectedwithThermo-Lagfirebarriers,theresultantlowestampacitymargininUnit1forthree-hour(3)firebarriersis~99'orthecablesinconduit11601B-3".InUnit2,thelowestmarginforconductorsinconduitswiththree-hour(3)protectionis~~forthepowerfeedertoStationServicetransformer2B2/2B5.Thesmallestmarginwithone-hour(1)protectionis~~,forthepowerfeedstoStationServicestransformers2A5and2B2/2B5.BasedonthemoreconservativevaluesusedintheSt.LucieampacityderatingcalculationaboveandthereviewoftheFPCampacityderatingtest,theconfigurationandampacityderatingforSt.LucieisboundedbytheFPCtests.ampcalc.05/98