ML17227A393: Difference between revisions
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{{#Wiki_filter:St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT1St.LucieUnit1Marked-upTechnicalSpecificationPage3/411-14920428007792042iPDRADOCK05000335'IPPDRl,' | |||
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RAOIOACTIVEEFFLUENTSEXPLOSIVEGASMIXTURELIMITINGCONDITIONFOROPERATION3.11.2.5TheconcentrationofoxygeninthewastegasdecaytanksshallbelimitedtolessthanorequaltoZXbyvolumewheneverthehydrogenconcentra-tionexceeds4Xbyvolume.APPLICABILITY:Atal1times.ACTION:a.WiththeconcentrationofoxygeninthewastegasdecaytankgreaterthanZXbyvolumebutlessthanorequalto4Xbyvolume,reducetheoxygenconcentrationtotheabove1imitswithin48hours.b.Withtheconcentrationofoxygeninthewastegasdecaytank'greaterthan4XbyvolumeandthehydrogenconcentrationgreaterthanZXbyvolume,immediatelysuspendalladditionsofwastegasestothesystemandimmediatelycommencereductionoftheconcentrationofoxygentolessthanorequaltoZXbyvolume.c.TheprovisionsofSpecifications3.0.3and3.0.4arenotapplicable.'URVEILLANCEREUIREMENTS4.11.2.,(heconcentratiofdr+yhafi'xygeninthewastegasdecaytankshallbeeterminedtobewhinteaoveimitsbycontinuousl'r'nthewastegasesintheonservicewastegasdecaytankwiththedr<noxygenmonitorequi>edOPERABLEbyTable3.3-13ofSpecification3.3.3.0.Aalu>~>~ue</J~~~~W>+g+<~~~<~~~~g~$to~>~+haoA~~~ulcm"~~<~~~~i~eZ4yzp~.,/ia.go~<iIa~~>~~~~P'g<ni<<Awcuas$~gaJ'+ec~ygok.saba/fIglw+l\Agg(pyllgLl~l/J$pgJpdV7/$0'IV~+~~8~~dkbaftone<~cd(g<~t'7ST.CI-UNIT13/411-14AmendmentNo.59S FJi>,IINHhl,~wsC~e~~g:(It~~slh~hyi'~=p St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT2St.LucieUnit2Marked-upTechnicalSpecificationPage3/411-14 | |||
,~RADIOACTIYEEFFLUENTSEXPLOSIYEGASHI.'(TURELIMITINGCOflDITIONFOROPERATION311.2.STheconcentrationofoxygeninthewastegasdecaytanksshallbelimitedtolessthanorequalio2byvolumewheneverthehydrogenconcentrationexceeds4%byvolume.APPLICABILITY:Atalltimes.ACTION:C.Miththeconcentrationofoxygeninthewastegasdecaytankgreaterthan2%byvolumebutlessthanorequal4%byvolume,reducetheoxygenconcentrationtotheabovelimitswithin48hours.rwiththeconcentrationofoxygeninthewastegasdecaytankgreaterthan4%byvolumeandthehydrogenconcentrationgreaterthan2%byvolume,immediatelysuspendalladditionsofwastegasestothesystemandimmediatelycommencereductionoftheconcentrationofoxygentolessthan.orequalto2%byvolume.TheprovisionsofSpecifications3.0.3and3.0.4arenotapplicable.SURYEILLANCEREOUIREI"!EiVTS4.11.2-~heconcentratiofhdoey{xygeninthewastegasdecaytankshabedeterminedtoewithinteabovelimitsbycontinuouslymonrinthewastegasesintheonservicewastegasdecaytankwiththeenmonitorequiredOPERABLEbyTable3.3-13ofpecificatien3.3.AddE~r%errra/g8'll.Z.5~Wi%Wwcragerer.'eric~jr4e~i~f4e.crres~e-urcaa~~4~gasa<<ay<.t.~.~4i-p,.Z,l.f.(u.t.~~aZ~A.YSf<cr/i'll~'/.0g.S.lPAg~ac'e,7rr'.$,p/cIa.SA~ks4e[J~g~g~~,~gg~c/arrw/,+carel~rt$403%raref~P~Iharv-S.ST.LUGIE-UNIT23/411-14 r,~)r~~ | |||
St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT3SAFETYANALYSISIntroductionAchangeisproposedtorevisetheSt.LucieUnits1and2TechnicalSpecificationsSection3/4.11.2.5tocorrectthehydrogenmonitoringsurveillancerequirementsofExplosiveGasMixtureTechnicalSpecifications.ThischangewillmaketheTechnicalSpecificationsconsistentwiththeapproveddesign.DiscussionTheproposedchangetotheSt.LucieUnit1and2TechnicalSpecificationsrevisestheSurveillanceRequirementsofTechnicalSpecification3/4.11.2.5.ThisTechnicalSpecificationchangemodifiestheexistingsurveillancerequirement4.11.2.5todeletereferencetoacontinuoushydrogenconcentrationmonitorandaddsanewsurveillancerequirement4.11.2.5.2.Thenewsurveillancerequirementrequiresthehydrogenconcentrationtobedeterminedbygaspartitionergrabsampleatleastonceper24hourswhentheoxygenconcentrationasdeterminedbythecontinuousoxygenmonitorexceeds24byvolume.SafetAnalsisSt.LucieUnits1and2havetwocontinuousoxygenmonitorsinthewastegassystemanduseagaspartitionergrabsampletodeterminethehydrogenconcentrationofthewastegasdecaytankswhentheoxygenconcentrationiselevatedabovethresholdvalues.St.LucieUnits1and2donothaveinstalledcontinuoushydrogenmonitorsinthewastegassystems.TheStandardTechnicalSpecificationwasinappropriatelyusedfortheExplosiveGasMixtureTechnicalSpecificationwhentheSt.LucieUnit2TechnicalSpecificationswereoriginallyissuedandwhentheRadiologicalEffluentTechnicalSpecificationswereaddedtotheSt.LucieUnit1TechnicalSpecificationsbyLicenseAmendment59.TechnicalSpecification3.3.3.10isrelatedtothisTechnicalSpecificationfortheoperabilityandsurveillancerequirementsoftheradioactivegaseouseffluentmonitoringinstrumentation.Table3.3-13ofTechnicalSpecification3.3.3.10wasappropriatelychangedatthetimetheTechnicalSpecificationswereissuedtoreflect:thespecificdesignfortheRadioactiveGaseousWasteSystemattheSt.LuciePlant. | |||
TheSt.LucieUnit2UpdatedFinalSafetyAnalysisReport(UFSAR)Section11.3"GaseousWasteSystem"describestheGaseousWasteManagementSystem(GWMS).Section11.3.1m)ofthesystemdesignbasesdescribesthefeaturestodetectandprecludetheformationofpotentiallyexplosivemixturesofhydrogenandoxygen.Section11.3.2"SystemDescription"describesthegasanalyzerpackagethatisprovidedtocontinuouslymonitortheoxygenconcentrationsinvariousplantcomponentswherepotentiallyexplosivemixturescoulddevelop.ThesystemdesignwasreviewedaspartoftheOriginalLicensereview.TheNRCstaffreviewandtheacceptabilityofthedesignisdocumentedinthesection11oftheSt.LucieUnit2SafetyEvaluationReportRevision0andsupplementedinsection11.5ofSSERRevision3.TheNRCreviewoftheUnit1systemisdocumentedintheSafetyEvaluation(datedAugust18,1983)andTechnicalEvaluationReport(EGG-PHYS-6241datedApril26,1983).ThisreviewwasperformedinsupportofAmendment59whichaddedtheRadiologicalEffluentTechnicalSpecifications(RETS)totheUnit1TechnicalSpecifications.TheaboveSafetyEvaluationsdescribetheFPLcommitmenttomaintainasafeconcentrationofoxygeninthesystemsincehydrogenispresentinexcess.TheUnit1evaluationacknowledgesthatT.S.Table3.3-13doesnotincludeahydrogenmonitor.TechnicalSpecifications3.11.2.5and4.11.2.5specifytheconcentrationandmonitoringofhydrogengas,respectively,butreferenceinstrumentsnotinstalledintheplant.ThisTechnicalSpecificationchangeaddsamethodandfrequencyformonitoringhydrogenconcentrationwhentheoxygenconcentrationexceedsathreshold. | |||
St.LucieUnits1and2DocketNo.50-335and'50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT4DETERMINATIONOFNOSIGNIFICANTHAZARDSCONSIDERATIONThestandardsusedtoarriveatadeterminationthatarequestforamendmentinvolvesanosignificanthazardsconsiderationareincludedintheCommissionsregulation,10CFR50.92,whichstatesthatnosignificanthazardsconsiderationsareinvolvediftheoperationofthefacilityinaccordancewiththeproposedamendmentwouldnot(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated;or(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or(3)involveasignificantreductioninamarginofsafety.Eachstandardisdiscussedasfollows:(1)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.TheproposedamendmentdoesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluatedbecausethisamendmentdoesnotchangetheSt.LuciedesignaspreviouslyevaluatedbytheNRC.TheNRChaspreviouslyevaluatedtheinstrumentationusedtoensureanexplosivegasmixturewillnotoccuratSt.LucieduringtheOperatingLicensereviewofSt.LucieUnit2andduringthereviewofAmendment59forSt.LucieUnit1.(2)UseofthemodifiedTechnicalSpecificationwouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluated.TheuseofthismodifiedTechnicalSpecificationcannotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluatedsincethephysicaldesignofthefacilityisunchanged.Nonewfailuremodeisintroducedduetothechangeinthehydrogenmonitoringrequirements.(3)UseofthemodifiedTechnicalSpecificationwouldnotinvolveasignificantreductioninamarginofsafety.TheoperationandphysicalfacilityareunchangedbythisTechnicalSpecificationproposedamendment.Basedontheabove,wehavedeterminedthattheproposedamendmentdoesnot(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated,(2)createthe J(~ | |||
~Itprobabilityofanewordifferentkindofaccidentfromanypreviouslyevaluated,or(3)involveasignificantreductioninamarginofsafety;andthereforedoesnotinvolveasignificanthazardsconsideration. | |||
}} | }} | ||
Revision as of 17:23, 25 April 2018
| ML17227A393 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/21/1992 |
| From: | FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML17227A392 | List: |
| References | |
| NUDOCS 9204280077 | |
| Download: ML17227A393 (13) | |
Text
St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT1St.LucieUnit1Marked-upTechnicalSpecificationPage3/411-14920428007792042iPDRADOCK05000335'IPPDRl,'
"~
RAOIOACTIVEEFFLUENTSEXPLOSIVEGASMIXTURELIMITINGCONDITIONFOROPERATION3.11.2.5TheconcentrationofoxygeninthewastegasdecaytanksshallbelimitedtolessthanorequaltoZXbyvolumewheneverthehydrogenconcentra-tionexceeds4Xbyvolume.APPLICABILITY:Atal1times.ACTION:a.WiththeconcentrationofoxygeninthewastegasdecaytankgreaterthanZXbyvolumebutlessthanorequalto4Xbyvolume,reducetheoxygenconcentrationtotheabove1imitswithin48hours.b.Withtheconcentrationofoxygeninthewastegasdecaytank'greaterthan4XbyvolumeandthehydrogenconcentrationgreaterthanZXbyvolume,immediatelysuspendalladditionsofwastegasestothesystemandimmediatelycommencereductionoftheconcentrationofoxygentolessthanorequaltoZXbyvolume.c.TheprovisionsofSpecifications3.0.3and3.0.4arenotapplicable.'URVEILLANCEREUIREMENTS4.11.2.,(heconcentratiofdr+yhafi'xygeninthewastegasdecaytankshallbeeterminedtobewhinteaoveimitsbycontinuousl'r'nthewastegasesintheonservicewastegasdecaytankwiththedr<noxygenmonitorequi>edOPERABLEbyTable3.3-13ofSpecification3.3.3.0.Aalu>~>~ue</J~~~~W>+g+<~~~<~~~~g~$to~>~+haoA~~~ulcm"~~<~~~~i~eZ4yzp~.,/ia.go~<iIa~~>~~~~P'g<ni<<Awcuas$~gaJ'+ec~ygok.saba/fIglw+l\Agg(pyllgLl~l/J$pgJpdV7/$0'IV~+~~8~~dkbaftone<~cd(g<~t'7ST.CI-UNIT13/411-14AmendmentNo.59S FJi>,IINHhl,~wsC~e~~g:(It~~slh~hyi'~=p St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT2St.LucieUnit2Marked-upTechnicalSpecificationPage3/411-14
,~RADIOACTIYEEFFLUENTSEXPLOSIYEGASHI.'(TURELIMITINGCOflDITIONFOROPERATION311.2.STheconcentrationofoxygeninthewastegasdecaytanksshallbelimitedtolessthanorequalio2byvolumewheneverthehydrogenconcentrationexceeds4%byvolume.APPLICABILITY:Atalltimes.ACTION:C.Miththeconcentrationofoxygeninthewastegasdecaytankgreaterthan2%byvolumebutlessthanorequal4%byvolume,reducetheoxygenconcentrationtotheabovelimitswithin48hours.rwiththeconcentrationofoxygeninthewastegasdecaytankgreaterthan4%byvolumeandthehydrogenconcentrationgreaterthan2%byvolume,immediatelysuspendalladditionsofwastegasestothesystemandimmediatelycommencereductionoftheconcentrationofoxygentolessthan.orequalto2%byvolume.TheprovisionsofSpecifications3.0.3and3.0.4arenotapplicable.SURYEILLANCEREOUIREI"!EiVTS4.11.2-~heconcentratiofhdoey{xygeninthewastegasdecaytankshabedeterminedtoewithinteabovelimitsbycontinuouslymonrinthewastegasesintheonservicewastegasdecaytankwiththeenmonitorequiredOPERABLEbyTable3.3-13ofpecificatien3.3.AddE~r%errra/g8'll.Z.5~Wi%Wwcragerer.'eric~jr4e~i~f4e.crres~e-urcaa~~4~gasa<<ay<.t.~.~4i-p,.Z,l.f.(u.t.~~aZ~A.YSf<cr/i'll~'/.0g.S.lPAg~ac'e,7rr'.$,p/cIa.SA~ks4e[J~g~g~~,~gg~c/arrw/,+carel~rt$403%raref~P~Iharv-S.ST.LUGIE-UNIT23/411-14 r,~)r~~
St.LucieUnit1and2DocketNo.50-335and50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT3SAFETYANALYSISIntroductionAchangeisproposedtorevisetheSt.LucieUnits1and2TechnicalSpecificationsSection3/4.11.2.5tocorrectthehydrogenmonitoringsurveillancerequirementsofExplosiveGasMixtureTechnicalSpecifications.ThischangewillmaketheTechnicalSpecificationsconsistentwiththeapproveddesign.DiscussionTheproposedchangetotheSt.LucieUnit1and2TechnicalSpecificationsrevisestheSurveillanceRequirementsofTechnicalSpecification3/4.11.2.5.ThisTechnicalSpecificationchangemodifiestheexistingsurveillancerequirement4.11.2.5todeletereferencetoacontinuoushydrogenconcentrationmonitorandaddsanewsurveillancerequirement4.11.2.5.2.Thenewsurveillancerequirementrequiresthehydrogenconcentrationtobedeterminedbygaspartitionergrabsampleatleastonceper24hourswhentheoxygenconcentrationasdeterminedbythecontinuousoxygenmonitorexceeds24byvolume.SafetAnalsisSt.LucieUnits1and2havetwocontinuousoxygenmonitorsinthewastegassystemanduseagaspartitionergrabsampletodeterminethehydrogenconcentrationofthewastegasdecaytankswhentheoxygenconcentrationiselevatedabovethresholdvalues.St.LucieUnits1and2donothaveinstalledcontinuoushydrogenmonitorsinthewastegassystems.TheStandardTechnicalSpecificationwasinappropriatelyusedfortheExplosiveGasMixtureTechnicalSpecificationwhentheSt.LucieUnit2TechnicalSpecificationswereoriginallyissuedandwhentheRadiologicalEffluentTechnicalSpecificationswereaddedtotheSt.LucieUnit1TechnicalSpecificationsbyLicenseAmendment59.TechnicalSpecification3.3.3.10isrelatedtothisTechnicalSpecificationfortheoperabilityandsurveillancerequirementsoftheradioactivegaseouseffluentmonitoringinstrumentation.Table3.3-13ofTechnicalSpecification3.3.3.10wasappropriatelychangedatthetimetheTechnicalSpecificationswereissuedtoreflect:thespecificdesignfortheRadioactiveGaseousWasteSystemattheSt.LuciePlant.
TheSt.LucieUnit2UpdatedFinalSafetyAnalysisReport(UFSAR)Section11.3"GaseousWasteSystem"describestheGaseousWasteManagementSystem(GWMS).Section11.3.1m)ofthesystemdesignbasesdescribesthefeaturestodetectandprecludetheformationofpotentiallyexplosivemixturesofhydrogenandoxygen.Section11.3.2"SystemDescription"describesthegasanalyzerpackagethatisprovidedtocontinuouslymonitortheoxygenconcentrationsinvariousplantcomponentswherepotentiallyexplosivemixturescoulddevelop.ThesystemdesignwasreviewedaspartoftheOriginalLicensereview.TheNRCstaffreviewandtheacceptabilityofthedesignisdocumentedinthesection11oftheSt.LucieUnit2SafetyEvaluationReportRevision0andsupplementedinsection11.5ofSSERRevision3.TheNRCreviewoftheUnit1systemisdocumentedintheSafetyEvaluation(datedAugust18,1983)andTechnicalEvaluationReport(EGG-PHYS-6241datedApril26,1983).ThisreviewwasperformedinsupportofAmendment59whichaddedtheRadiologicalEffluentTechnicalSpecifications(RETS)totheUnit1TechnicalSpecifications.TheaboveSafetyEvaluationsdescribetheFPLcommitmenttomaintainasafeconcentrationofoxygeninthesystemsincehydrogenispresentinexcess.TheUnit1evaluationacknowledgesthatT.S.Table3.3-13doesnotincludeahydrogenmonitor.TechnicalSpecifications3.11.2.5and4.11.2.5specifytheconcentrationandmonitoringofhydrogengas,respectively,butreferenceinstrumentsnotinstalledintheplant.ThisTechnicalSpecificationchangeaddsamethodandfrequencyformonitoringhydrogenconcentrationwhentheoxygenconcentrationexceedsathreshold.
St.LucieUnits1and2DocketNo.50-335and'50-389ProposedLicenseAmendmentExlosiveGasMixture-HdroenMonitorDeletionATTACHMENT4DETERMINATIONOFNOSIGNIFICANTHAZARDSCONSIDERATIONThestandardsusedtoarriveatadeterminationthatarequestforamendmentinvolvesanosignificanthazardsconsiderationareincludedintheCommissionsregulation,10CFR50.92,whichstatesthatnosignificanthazardsconsiderationsareinvolvediftheoperationofthefacilityinaccordancewiththeproposedamendmentwouldnot(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated;or(2)createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or(3)involveasignificantreductioninamarginofsafety.Eachstandardisdiscussedasfollows:(1)Operationofthefacilityinaccordancewiththeproposedamendmentwouldnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.TheproposedamendmentdoesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluatedbecausethisamendmentdoesnotchangetheSt.LuciedesignaspreviouslyevaluatedbytheNRC.TheNRChaspreviouslyevaluatedtheinstrumentationusedtoensureanexplosivegasmixturewillnotoccuratSt.LucieduringtheOperatingLicensereviewofSt.LucieUnit2andduringthereviewofAmendment59forSt.LucieUnit1.(2)UseofthemodifiedTechnicalSpecificationwouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluated.TheuseofthismodifiedTechnicalSpecificationcannotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluatedsincethephysicaldesignofthefacilityisunchanged.Nonewfailuremodeisintroducedduetothechangeinthehydrogenmonitoringrequirements.(3)UseofthemodifiedTechnicalSpecificationwouldnotinvolveasignificantreductioninamarginofsafety.TheoperationandphysicalfacilityareunchangedbythisTechnicalSpecificationproposedamendment.Basedontheabove,wehavedeterminedthattheproposedamendmentdoesnot(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated,(2)createthe J(~
~Itprobabilityofanewordifferentkindofaccidentfromanypreviouslyevaluated,or(3)involveasignificantreductioninamarginofsafety;andthereforedoesnotinvolveasignificanthazardsconsideration.