RG1.181 依照10 CFR 50.71(e)升版的的最终安全分析报告的内容 1999

1Theterminologyfor“updatedFSARs”variesthroughouttheindustry.Inthisguide,thetermsupdatedFSAR,UFSAR,andUSAR(updatedSafetyAnalysisReport)areequivalentandhavethesamemeanings.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]lsoavailableontheinternetatNRC’shomepageat(DraftwasissuedasDG-1083)CONTENTOFTHEUPDATEDFINALSAFETYANALYSISREPORTINACCORDANCEWITH10CFR50.71(e)A.INTRODUCTIONIn10CFRPart50,“DomesticLicensingofProductionandUtilizationFacilities,”Section50.34,“ContentsofApplications;TechnicalInformation,”containsrequirementsforthecontentsofapplicationsforconstructionpermitsandoperatinglicensesfornuclearpowerreactors.Anapplicationforaconstructionpermitmustincludeapreliminarysafetyanalysisreport(PSAR)pursuantto10CFR50.34(a).Anapplicationforanoperatinglicensemustincludeafinalsafetyanalysisreport(FSAR)inaccordancewith10CFR50.34(b).Forholdersofoperatinglicenses,10CFR50.71(e)requiresupdatedFSARs1tobedevelopedandperiodicallyupdated.GuidancefortheorganizationandcontentsofPSARsandFSARshasexistedsinceJune30,1966,whenthe“GuidetotheOrganizationandContentsofSafetyAnalysisReports”wasissued.ThemostrecentguidancedocumentisRevision3ofRegulatoryGuide1.70,“StandardFormatandContentofSafetyAnalysisReportsforNuclearPowerPlants(LWREdition),“(November1978).LimitedguidancefortheformatandcontentofUFSARswasalsoprovidedinGenericLetter80-110,“PeriodicUpdatingofFinalSafetyAnalysisReports(FSARs)”(December15,1980).AsaresultoflessonslearnedfromtheMillstoneexperienceandotherinitiativesrelatedtoUFSARs,theNRChasdeterminedthatadditionalguidanceregardingcompliancewith10CFR50.71(e)isnecessary.ThestaffrecommendedspecificactionsinSECY-97-036,“MillstoneLessonsLearnedReport,Part2:PolicyIssues,”datedFebruary12,1997.InastaffrequirementsmemorandumdatedMay20,1997,theCommissiondirectedthestaff,inpart,toissueguidanceforcomplyingwith10CFR50.71(e)sothatUFSARs2CopiesareavailableforinspectionorcopyingforafeefromtheNRCPublicDocumentRoomat2120LStreetNW.,Washington,DC;thePDR’smailingaddressisMailStopLL-6,Washington,DC20555;telephone[phone];fax[phone]areupdatedtoreflectchangestothedesignbasesandtoreflecttheeffectsofotheranalysesperformedsinceoriginallicensingthatshouldhavebeenincludedunder10CFR50.71(e).ThisregulatoryguideprovidestheguidancerequestedbytheMay20,1997,staffrequirementsmemorandum.Theinformationcollectionscontainedinthisregulatoryguidearecoveredbytherequirementsof10CFRPart50,whichwereapprovedbytheOfficeofManagementandBudget,approvalnumber3150-0011.TheNRCmaynotconductorsponsor,andapersonisnotrequiredtorespondto,acollectionofinformationunlessitdisplaysacurrentlyvalidOMBcontrolnumber.B.DISCUSSIONOBJECTIVETheobjectivesof10CFR50.71(e)aretoensurethatlicenseesmaintaintheinformationintheUFSARtoreflectthecurrentstatusofthefacilityandaddressnewissuesastheyarise,sothattheUFSARcanbeusedasareferencedocumentinsafetyanalyses.DEVELOPMENTOFINDUSTRYGUIDELINE,NEI98-03OnNovember14,1997,theNuclearEnergyInstitute(NEI)providedadraftguidancedocument,NEI98-03,“DraftIndustryUpdateGuidelinesforFinalSafetyAnalysisReports,”totheNRCstaffforinformation.Inparallelwithindustry’sefforts,thestaffdevelopedaproposedgenericletter,“InterimGuidanceforUpdatedFinalSafetyAnalysisReportsinAccordancewith10CFR50.71(e).”ThisproposedgenericletterandNEI’sdraftguidelinewereprovidedtotheCommissioninSECY-98-087,2datedApril20,1998.InSECY98-087,thestaffrecommendedthattheCommissionapproveissuanceoftheproposedgenericletterforpubliccommentasinterimguidance.ThestaffproposedtocontinuetoworkwithNEItoresolvedifferencesbetw