RG1.068 水冷核电厂初始试验大纲 2007

TheU.S.NuclearRegulatoryCommission(NRC)issuesregulatoryguidestodescribeandmakeavailabletothepublicmethodsthattheNRCstaffconsidersacceptableforuseinimplementingspecificpartsoftheagency’sregulations,techniquesthatthestaffusesinevaluatingspecificproblemsorpostulatedaccidents,anddatathatthestaffneedinreviewingapplicationsforpermitsandlicenses.Regulatoryguidesarenotsubstitutesforregulations,andcompliancewiththemisnotrequired.MethodsandsolutionsthatdifferfromthosesetforthinregulatoryguideswillbedeemedacceptableiftheyprovideabasisforthefindingsrequiredfortheissuanceorcontinuanceofapermitorlicensebytheCommission.Thisguidewasissuedafterconsiderationofcommentsreceivedfromthepublic.TheNRCstaffencouragesandwelcomescommentsandsuggestionsinconnectionwithimprovementstopublishedregulatoryguides,aswellasitemsforinclusioninregulatoryguidesthatarecurrentlybeingdeveloped.TheNRCstaffwillreviseexistingguides,asappropriate,toaccommodatecommentsandtoreflectnewinformationorexperience.WrittencommentsmaybesubmittedtotheRulesandDirectivesBranch,OfficeofAdministration,U.S.NuclearRegulatoryCommission,Washington,DC20555-0001.Regulatoryguidesareissuedin10broaddivisions:1,PowerReactors;2,ResearchandTestReactors;3,FuelsandMaterialsFacilities;4,EnvironmentalandSiting;5,MaterialsandPlantProtection;6,Products;7,Transportation;8,OccupationalHealth;9,AntitrustandFinancialReview;and10,General.Requestsforsinglecopiesofdraftoractiveregulatoryguides(whichmaybereproduced)shouldbemadetotheU.S.NuclearRegulatoryCommission,Washington,DC20555,Attention:ReproductionandDistributionServicesSection,orbyfaxto(301)415-2289;[e-mail]ideandotherrecentlyissuedguidesareavailablethroughtheNRC’spublicWebsiteundertheRegulatoryGuidesdocumentcollectionoftheNRC’sElectronicReadingRoomat’sAgencywideDocumentsAccessandManagementSystem(ADAMS)at(DraftwasissuedasDG-1166,datedNovember2006)INITIALTESTPROGRAMSFORWATER-COOLEDNUCLEARPOWERPLANTSA.INTRODUCTIONInTitle10,Part50,oftheCodeofFederalRegulations(10CFRPart50),“DomesticLicensingofProductionandUtilizationFacilities”(Ref.1),and10CFRPart52,“Licenses,Certifications,andApprovalsforNuclearPowerPlants”(Ref.2),10CFR50.34,“ContentsofApplications;TechnicalInformation,”and10CFR52.79,“ContentsofApplication,TechnicalInformationinFSAR,”require,inpart,thatanapplicantforalicensetooperateaproductionorutilizationfacilityprovideasafetyanalysisreport(SAR)thatincludestheprincipaldesigncriteriafortheproposedfacility.TheintroductiontoAppendixA,“GeneralDesignCriteriaforNuclearPowerPlants,”to10CFRPart50statesthattheseprincipaldesigncriteriaaretoestablishthenecessarydesign,fabrication,construction,testing,andperformancerequirementsforstructures,systems,andcomponents(SSCs)importanttosafety(i.e.,SSCsthatprovidereasonableassurancethatthefacilitycanbeoperatedwithoutunduerisktothehealthandsafetyofthepublic).CriterionXI,“TestControl,”ofAppendixB,“QualityAssuranceCriteriaforNuclearPowerPlantsandFuelReprocessingPlants,”to10CFRPart50requiresthatatestprogramshallbeestablishedtoassurethatalltestingrequiredtodemonstratethatSSCswillperformsatisfactorilyinserviceisidentifiedandperformedinaccordancewithwrittentestprocedures,whichincorporatetherequirementsandacceptancelimitscontainedinapplicabledesigndocuments.Sinceallfunctionsdesignatedinthegeneraldesigncriteria(GDC)areimportanttosafety,allSSCsrequiredtoperformthesefunctionsneedtobetestedtoensurethattheywillperformproperly.Thesefunctions,asnotedthroughoutthespecificGDC,arethosenecessarytoensurethatspecifieddesignconditionsofthefacilityarenotexceededduringanyconditionofnormaloperation,includinganticipatedoperationaloccurrences,orasaresultofpostulatedaccidentconditions.Rev.3ofRG1.68,Page2TheGDCandthisguiderecognizeandprovideforsuccessivelevelsofplantfeaturesforachievingthesafetyofthefacility.Thisistoprovideforasystematicapproachtothe“defense-in-depth”concept.Thisconceptdictatesthattheplantmustbedesigned,constructed,andtestedto(1)provideforsafenormaloperationandhightoleranceforsystemmalfunctionsandtransients;(2)ensurethat,intheeventoferrors,malfunctions,andoff-normalconditions,thereactorprotectionsystemsandotherdesignfeatureswillarresttheeventorlimititsconsequencestodefinedandacceptablelevels;and(3)ensurethatadequatesafetymarginexistsforeventsofextremelylowprobabilityorarbitrarilypostulatedhypotheticaleventswithoutsubstantialreductioninthesafetymarginfortheprotectionofpublichealthandsafety.Thisrevisionincorporatesinformationfrom10CFRPart52,includinginitialtestprogram(ITP)informationfromdesigncertification(DC),manufacturinglicense(ML),andcombinedlicense(COL)applicationssubmittedpursuanttoSubpartsA–CandFof10CFRPart52.Inparticular,theDC,ML,andCOLapplicationssubmittedfornewreactors(pursuanttotheprovisionsof10CFRPart52)mustincludeinspe