ML17213B132: Difference between revisions
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ATTACHMENTRE:ST.LUCIEUNIT1DOCKETNO.50-335PROPOSEDLICENSEAMENDMENTCHLORIDEDETECTIONSYSTEMSAFETYEYALUATIONEVALUATIONOFCONSEQUENCESOFANACCIDENTALFAILUREOFA150-LB.CHLORINECYLINDERONTHEHABITABILITYOFTHEST.LUCIEUNIT1CONTROLROOMPriortotheinstallationofthesodiumhypochloritegenerator,thesourceofchlorineusedin"thetreatmentoftheplantcirculatingwaterwasone-toncylindersofliquifiedchlorine.Thesecylinderswerestoredatthechlorina-tionfacilitylocatedwithintheplantperimeter.Inordertoprovidecontrolroomoccupantsprotectionagainstanaccidentalchlorinerelease,seismicCategory1chlorinedetectorswereinstalledatthecontrolrocmoutsideairintakes.Althoughthemainsourceofchlorineforwhichadequate'protectionwaspro-vidednolongerexists,thereremainsasmallerquantityofchlorinestoredoffsitenearthesewagetreatmentfacilityandthecitywaterstoragetanks.Thischlorine,storedin150-lb.cylinders,isthesourceusedintheevalu-ationoftheconsequencesofapostulatedaccidentalreleasefrcma150-lb.cylinderontheSt.LucieUnit1controlroomhabitability.Inthisevaluationitisassumedthat25percent(38lb.)oftheclosest150-lb.cylindercontentsisreleasedinstantaneously.ThesizeanddiffusionofthecloudaremodeledbasedontheguidancegiveninRegulatoryGuide1.78.Nocreditistakenforthepresenceofthechlorinedetectorsandconsequently,thenormalairexchangebetweentheoutsideenvironsandthe,controlrocmcontinues.Theresultsoftheevaluation.showthatthemaximumchlorineco'ncentrationinthecontrolroomis4.9ppmwhereastheR.G.1.78toxicitylimitis15ppm.Giventheconservativenatureoftheevaluationandtherelativelysmallpeak.controlroomconcentration,the150-lb.chlorinecylindersdonotconstituteasourcewhichwouldrequirehavingqualifieddetectorsatthecontrolrocmairintakes. | ATTACHMENTRE:ST.LUCIEUNIT1DOCKETNO.50-335PROPOSEDLICENSEAMENDMENTCHLORIDEDETECTIONSYSTEMSAFETYEYALUATIONEVALUATIONOFCONSEQUENCESOFANACCIDENTALFAILUREOFA150-LB.CHLORINECYLINDERONTHEHABITABILITYOFTHEST.LUCIEUNIT1CONTROLROOMPriortotheinstallationofthesodiumhypochloritegenerator,thesourceofchlorineusedin"thetreatmentoftheplantcirculatingwaterwasone-toncylindersofliquifiedchlorine.Thesecylinderswerestoredatthechlorina-tionfacilitylocatedwithintheplantperimeter.Inordertoprovidecontrolroomoccupantsprotectionagainstanaccidentalchlorinerelease,seismicCategory1chlorinedetectorswereinstalledatthecontrolrocmoutsideairintakes.Althoughthemainsourceofchlorineforwhichadequate'protectionwaspro-vidednolongerexists,thereremainsasmallerquantityofchlorinestoredoffsitenearthesewagetreatmentfacilityandthecitywaterstoragetanks.Thischlorine,storedin150-lb.cylinders,isthesourceusedintheevalu-ationoftheconsequencesofapostulatedaccidentalreleasefrcma150-lb.cylinderontheSt.LucieUnit1controlroomhabitability.Inthisevaluationitisassumedthat25percent(38lb.)oftheclosest150-lb.cylindercontentsisreleasedinstantaneously.ThesizeanddiffusionofthecloudaremodeledbasedontheguidancegiveninRegulatoryGuide1.78.Nocreditistakenforthepresenceofthechlorinedetectorsandconsequently,thenormalairexchangebetweentheoutsideenvironsandthe,controlrocmcontinues.Theresultsoftheevaluation.showthatthemaximumchlorineco'ncentrationinthecontrolroomis4.9ppmwhereastheR.G.1.78toxicitylimitis15ppm.Giventheconservativenatureoftheevaluationandtherelativelysmallpeak.controlroomconcentration,the150-lb.chlorinecylindersdonotconstituteasourcewhichwouldrequirehavingqualifieddetectorsatthecontrolrocmairintakes. | ||
~)2KaSTATEOFFLORIDA)))ss.RobertE.Uhribeingfirstdulysworn,deposesandsays:ThatheisVicePresidenofFloridaPower6LightCompany,theL)censeeherein;Thathehasexecutedtheforegoingdocument;that.thestate-mentsmadeinthissaiddocumentaretrueandcorrecttothebestofhisknowledge,information,andbelief,andthatheisauthorizedtoexecutethedocumentonbehalfofsaidRobertE.UhrigSubscribedandsworntobeforeme'thisclayof1985'>>t.'aOTAHYPUp~f'XC,nandfortheCountyofDade,Sfateo+>>loria>>ll>>@>>i"clnotaryPublic,StateofRondaatLargelt~.MCommissionExpiresOctober30,f983i'""ommissionexpires: | ~)2KaSTATEOFFLORIDA)))ss.RobertE.Uhribeingfirstdulysworn,deposesandsays:ThatheisVicePresidenofFloridaPower6LightCompany,theL)censeeherein;Thathehasexecutedtheforegoingdocument;that.thestate-mentsmadeinthissaiddocumentaretrueandcorrecttothebestofhisknowledge,information,andbelief,andthatheisauthorizedtoexecutethedocumentonbehalfofsaidRobertE.UhrigSubscribedandsworntobeforeme'thisclayof1985'>>t.'aOTAHYPUp~f'XC,nandfortheCountyofDade,Sfateo+>>loria>>ll>>@>>i"clnotaryPublic,StateofRondaatLargelt~.MCommissionExpiresOctober30,f983i'""ommissionexpires: | ||
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Revision as of 18:18, 18 May 2018
| ML17213B132 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 03/09/1983 |
| From: | FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML17213B131 | List: |
| References | |
| NUDOCS 8303160177 | |
| Download: ML17213B132 (9) | |
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Thispageintentiona11yb1ankDOCK05000~3>so~77aSOS09PDRAPDRST.LUCIE-UNITI'/43-36 5'ff'14)4n' PLANTSYSTEMSSURVEILLANCEREQUIRENENTS(Continuede.Atleastonceper18monthsby:l.VerifyingthatthepressuredropsacrossthecombinedHEPAfiltersandcharcoaladsorberbanksis<4.15inchesWaterGaugewhileoperatingtheventilationsystemataflowrateof2000cfm+10$.'.Verifyingthatonacontaireentisolationsignal,thesystemautomaticalyisolatesthecontrolroomwithin35secondsandswitchesintoarecirculationmodeofoperationwithflowthroughtheHEPAfiltersandcharcoaladsorberbanks.3.Verifyingthatthesystemmaintainsthecontrolrocmatapositivepressureof>1/8inchW.G.relativetotheoutsideatmosphereduringsystemoperationwith<450cfmoutsideairintake.f.AftereachcompleteorpartialreplacementofaHEPAfilterbankbyverifyingthattheHEPAfilterbanksremove>99$oftheDOPwhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof2000cfm+107,.g.Aftereachcompleteorpartialreplacementofacharcoaladsorberbankbyverifyingthatthecharcoaladsorbersremove>99$ofanalogenatedhydrocarbonrefrigeranttestgaswhentheyaretestedin-placeinaccordancewithANSIN510-1975whileoperatingtheventilationsystemataflowrateof2000cfm+105.ST.LUCIE-UNIT13/47-23 IHSTRUt)ENTATIONBASES3/4.3.3.7FIREDETECTIONINSTRUMENTATIONOPERABILITYofthefiredetectioninstrumentationensuresthatadequatewarningcapabilityisavailableforthepromptdetectionoffires.Thiscapabilityisrequiredinordertodetectandlocatefiresintheirearlystages.Promptdetectionoffireswillreducethepoten-tialfordamagetosafetyrelatedequipmentandisanintegralelementintheoverallfacilityfireprotectionprogram.Intheeventthataportionofthefiredetectioninstrumentationisinoperable,theestablishmentoffrequentfirepatrolsintheaffectedareasisrequiredtoprovidedetectioncapabilityuntiltheinoperableinstrumentationisrestoredtoOPERABILITY.3/4.3.3.8ACOIDENTMONITORINGINSTRUMENTATIONTheOPERABILITYoftheaccidentmonitoringinstrumentationensuresthatsufficientinformationisavailableonselectedplantparameterstomonitorandassessthesevariablesduringandfollowinganaccident.ThiscapabilityisconsistentwiththerecommendationsofHUREG-0578,"TMI-2LessonsLearnedTaskForceStatusReportandShort-TermRecommendations."ST.LUCIE-UNIT1B3/43-3 PLAHTSYSTEMSBASES3/4.7.7CONTROLROOMEMERGENCYVENTILATIONSYSTEMContinuedforoperationspersonnelduringandfollowingallcredibleaccidentconditions.TheOPERABILITYofthissysteminconjunctionwithcontrolrocmdesignprovisionsisbasedonlimitingtheradiationexposuretopersonneloccupyingthecontrolroomto5remorlesswholebody,oritsequivalent.ThislimitationisconsistentwiththerequirementsofGeneralDesignCriteria10ofAppendix"A",10CFR50.3/4.7.8ECCSAREAVEHTILATIOHSYSTEMTheOPERABILITYoftheECCSareaventilationsystemensuresthatradioactivematerialsleakingfromtheECCSequipmentfollowingaLOCAarefilteredpriortoreachingtheenviroreent.Theoperationofthissystenandtheresultanteffectonoffsitedosagecalculationswasassumedintheaccidentanalyses.M3/4.7.9SEALEDSOURCECONTAMINATIONThelimitationsonsealedsourceremovable-contminationensurethatthetotalbodyorindividualorganirradiationdoesnotexceedallowablelimitsi'theeventofingestionorinhalationoftheprobableleakagefrcmtnesourcematerial.Thelimitationsonremovablecontaminationforsourcesrequiringleaktesting,includingalphaemitters,isbasedon10CFR70.39(c)limitsforplutonium.guantitiesofinteresttothisspecificationwhichareexemptfromtheleakagetestingareconsistentwiththecriteriaof10CFRParts30.11-20and70.19.Leakagefromsourcesexcludedfromtherequirementsofthisspecificat'ionisnotlikelytorepresentmorethanonemaximumpermissiblebodyburdenfortotalbodyirradiationifthesourcematerialisinhaledoringested.3/4.7.10SNUBBERSAllsnubbersarerequiredtobeOPERABLEtoensurethatthestructuralintegrityofthereactorcoolantsystemandallothersafetyrelatedsystemsismaintainedduringandfollowingaseismicorothereventinitiating,dynamicloads.,Snubbersexcludedfromthisinspectionprogramarethoseinstalledonnonsafety-relatedsystemsandthenonlyiftheirfailureorfailureofthesystemonwhichtheyareinstalledwouldhavenoadverseeffectonanysafety-related-system.Thevisualinspectionfrequencyisbasedonmaintainingaconstantlevelofsnubberprotectiontosystems.Therefore,therequiredinspectionintervalvariesinverselywiththeobservedsnubberfailuresandisdeterminedbythenumberofinoperablesnubbersfoundduringaninspection.InspectionsperformedST.LUCIE-UNIT1B3/47-5
ATTACHMENTRE:ST.LUCIEUNIT1DOCKETNO.50-335PROPOSEDLICENSEAMENDMENTCHLORIDEDETECTIONSYSTEMSAFETYEYALUATIONEVALUATIONOFCONSEQUENCESOFANACCIDENTALFAILUREOFA150-LB.CHLORINECYLINDERONTHEHABITABILITYOFTHEST.LUCIEUNIT1CONTROLROOMPriortotheinstallationofthesodiumhypochloritegenerator,thesourceofchlorineusedin"thetreatmentoftheplantcirculatingwaterwasone-toncylindersofliquifiedchlorine.Thesecylinderswerestoredatthechlorina-tionfacilitylocatedwithintheplantperimeter.Inordertoprovidecontrolroomoccupantsprotectionagainstanaccidentalchlorinerelease,seismicCategory1chlorinedetectorswereinstalledatthecontrolrocmoutsideairintakes.Althoughthemainsourceofchlorineforwhichadequate'protectionwaspro-vidednolongerexists,thereremainsasmallerquantityofchlorinestoredoffsitenearthesewagetreatmentfacilityandthecitywaterstoragetanks.Thischlorine,storedin150-lb.cylinders,isthesourceusedintheevalu-ationoftheconsequencesofapostulatedaccidentalreleasefrcma150-lb.cylinderontheSt.LucieUnit1controlroomhabitability.Inthisevaluationitisassumedthat25percent(38lb.)oftheclosest150-lb.cylindercontentsisreleasedinstantaneously.ThesizeanddiffusionofthecloudaremodeledbasedontheguidancegiveninRegulatoryGuide1.78.Nocreditistakenforthepresenceofthechlorinedetectorsandconsequently,thenormalairexchangebetweentheoutsideenvironsandthe,controlrocmcontinues.Theresultsoftheevaluation.showthatthemaximumchlorineco'ncentrationinthecontrolroomis4.9ppmwhereastheR.G.1.78toxicitylimitis15ppm.Giventheconservativenatureoftheevaluationandtherelativelysmallpeak.controlroomconcentration,the150-lb.chlorinecylindersdonotconstituteasourcewhichwouldrequirehavingqualifieddetectorsatthecontrolrocmairintakes.
~)2KaSTATEOFFLORIDA)))ss.RobertE.Uhribeingfirstdulysworn,deposesandsays:ThatheisVicePresidenofFloridaPower6LightCompany,theL)censeeherein;Thathehasexecutedtheforegoingdocument;that.thestate-mentsmadeinthissaiddocumentaretrueandcorrecttothebestofhisknowledge,information,andbelief,andthatheisauthorizedtoexecutethedocumentonbehalfofsaidRobertE.UhrigSubscribedandsworntobeforeme'thisclayof1985'>>t.'aOTAHYPUp~f'XC,nandfortheCountyofDade,Sfateo+>>loria>>ll>>@>>i"clnotaryPublic,StateofRondaatLargelt~.MCommissionExpiresOctober30,f983i'""ommissionexpires:
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