RG1.191 核电厂退役和永久停机期间的火灾防护大纲 2001

RegulatoryguidesareissuedtodescribeandmakeavailabletothepublicsuchinformationasmethodsacceptabletotheNRCstaffforimplementingspecificpartsoftheNRC’sregulations,techniquesusedbythestaffinevaluatingspecificproblemsorpostulatedaccidents,anddataneededbytheNRCstaffinitsreviewofapplicationsforpermitsandlicenses.Regulatoryguidesarenotsubstitutesforregulations,andcompliancewiththemisnotrequired.MethodsandsolutionsdifferentfromthosesetoutintheguideswillbeacceptableiftheyprovideabasisforthefindingsrequisitetotheissuanceorcontinuanceofapermitorlicensebytheCommission.Thisguidewasissuedafterconsiderationofcommentsreceivedfromthepublic.Commentsandsuggestionsforimprovementsintheseguidesareencouragedatalltimes,andguideswillberevised,asappropriate,toaccommodatecommentsandtoreflectnewinformationorexperience.WrittencommentsmaybesubmittedtotheRulesandDirectivesBranch,ADM,U.S.NuclearRegulatoryCommission,Washington,DC20555-0001.Regulatoryguidesareissuedintenbroaddivisions:1,PowerReactors;2,ResearchandTestReactors;3,FuelsandMaterialsFacilities;4,EnvironmentalandSiting;5,MaterialsandPlantProtection;6,Products;7,Transportation;8,OccupationalHealth;9,AntitrustandFinancialReview;and10,General.Singlecopiesofregulatoryguides(whichmaybereproduced)maybeobtainedfreeofchargebywritingtheDistributionServicesSection,U.S.NuclearRegulatoryCommission,Washington,DC20555-0001,orbyfaxto(301)415-2289,[e-mail]ideareavailableontheinternetatNRC’shomepageat’shomepage,alongwithotherrecentlyissuedguides,AccessionNumberMLU.S.NUCLEARREGULATORYCOMMISSIONMay2001REGULATORYGUIDEOFFICEOFNUCLEARREGULATORYRESEARCHREGULATORYGUIDE1.191(DraftwasDG-1069)FIREPROTECTIONPROGRAMFORNUCLEARPOWERPLANTSDURINGDECOMMISSIONINGANDPERMANENTSHUTDOWNA.INTRODUCTIONThisguidehasbeendevelopedtodescribemethodsacceptabletotheNRCstaffforcomplyingwiththeNRC’sregulationsregardingfireprotectionprogramsforlicenseeswhohavecertifiedthattheirplantshavepermanentlyceasedoperationsandthatthefuelhasbeenpermanentlyremovedfromthereactorvessels.Theregulationsthatapplytofireprotectionprogramsfornuclearpowerplantsduringdecommissioningandpermanentshutdownarein10CFRPart50,“DomesticLicensingofProductionandUtilizationFacilities.”Thecertificationconnectedwithdecommissioningisdescribedin10CFR50.82,“TerminationofLicense.”Thelicenseeofapermanentlyshutdownnuclearpowerplantisrequiredby10CFR50.48(f)tomaintainafireprotectionprogramtoaddressthepotentialforfiresthatcouldresultinthereleaseorspreadofradioactivematerials.Theobjectivesofthefireprotectionprogramareto(1)reasonablypreventfiresfromoccurring,(2)rapidlydetect,control,andextinguishfiresthatdooccur,and(3)minimizetheriskoffire-inducedradiologicalhazardstothepublic,theenvironment,andplantpersonnel.1Asofthedateofthisregulatoryguide,theNRChasnotreceivedanysubmittalsofperformance-basedfireprotectionprogramsnorhasitreviewedanymethodsorapproachesfordevelopingorimplementingperformance-basedprograms.Moreover,theNRCstaffisnotawareoftheexistenceofspecificmethodsorapproachesfordevelopingandimplementinganacceptableperformance-basedprogram.Nevertheless,assuchmethodsandapproachesaredevelopedinthefuture,theycouldprovideabasisformeetingtherequirementsof10CFR50.48(f).1.191-2Thisguidedoesnotapplytoindependentspentfuelstorageinstallations(ISFSIs)thatarelicensedinaccordancewiththerequirementsof10CFRPart72,“LicensingRequirementsfortheIndependentStorageofSpentNuclearFuelandHigh-LevelRadioactiveWaste,”exceptforthefireexposurerisktoanISFSIfromareactorduringdecommissioning.Thisguidedoesapplytospentfuelstoragefacilitieslicensedunder10CFRPart50.Theregulationsprovideforaperformance-basedfireprotectionprogramthatcanreadilybemodifiedduringthedecommissioningprocesstoaddressresidualhazards.Theperformancegoalsandmeasuresestablishedbythelicenseeshouldbefoundedonestablishedindustrystandardsandpracticesandshouldprovidereasonableassurancethatthefireprotectionobjectivesof10CFR50.48willbemet.Ifalicenseechoosestousefireprotectionmethodsdifferentfromtheguidelinesrecommendedinthisguide,thelicenseeshouldprovideanequivalentleveloffireprotection.Thelicenseeisresponsiblefordemonstratingtheequivalencyofproposedalternativemethods.1AppendixAtothisguideisaglossaryoftermsthathavebeenusedinthisguide.Thesedefinitionshavebeentakenfromexistingregulatorydocumentsandindustryfireprotectionstandardswhenpossible.Ifpublisheddefinitionswerenotavailable,thestaffdefinedtheterms.AppendixBtothisguideprovidesexamplesoftheleveloffireprotectionthatisacceptabletotheNRCstaffforspentfuelareas.Theinformationcollectionscontainedinthisregulatoryguidearecoveredbytherequirementsof10CFRPart50,whichwereapprovedbytheOfficeofManagementandBudget,approvalno.3150-0011.IfameansusedtoimposeaninformationcollectiondoesnotdisplayacurrentlyvalidOMBcontrolnumber,theNRCmaynotconductorsponsor,andapersonisnotrequiredtorespondto,theinformationcollection.B.DISCUSSIONGENERALThefireprotectionrequirementsforoperatin