RG1.063 安全壳结构中的电气贯穿件 1987

Revision3'February1987U.S.NUCLEARREGULATORYCOMMISSION)REGULATORYGUiDEOFFICEOFNUCLEARREGULATORYRESEARCHREGULATORYGUIDE1.63(TaskEE4054)ELECTRICPENETRATIONASSEMBLIESINCONTAINMENTSTRUCTURESFORNUCLEARPOWERPLANTSA.INTRODUCTIONGeneralDesignCriterion50,ContainmentDesignBasis,ofAppendixA,GeneralDesignCriteriaforNuclearPowerPlants,to10CFRPart50,DomesticLicensingofProductionandUtilizationFacilities,requires,inpart,thatthereactorcontainmentstructure,includingpenetrations,bedesignedsothatthecontainmentstructurecan,withoutexceedingthedesignleakagerate,accommodatethecalculatedpressure,temperature,andotherenvironmentalconditionsresultingfromanyloss-of-coolantaccident.Section50.49,EnvironmentalQualificationofElectricEquipmentImportanttoSafetyforNuclearPowerPlants,of10CFRPart50specifiesthequalificationrequirements.AppendixB,QualityAssuranceCriteriaforNuclearPowerPlantsandFuelReprocessingPlants,to10CFRPart50establishesqualityassurancerequirementsfordesign,construction,andoperationofnuclearpowerplantstructures,systems,andcomponents.ThisguidedescribesamethodacceptabletotheNRCstaffforcomplyingwiththeCommission'sregulationsforthedesign,construction,testing,qualification,installation,andexternalcircuitprotectionofelectricpenetrationassembliesincontainmentstructuresofnuclearpowerplants.TheAdvisoryCommitteeonReactorSafeguardshasbeenconsultedconcerningthisguideandhasconcurredintheregulatoryposition.Anyinformationcollectionactivitiesmentionedinthisregulatoryguidearecontainedasrequirementsin10CFRPart50,whichprovidestheregulatorybasisforthisguide.Theinformationcollectionrequirementsin10CFRPart50havebeenclearedunderOMBClearanceNo.3150-0011.ThesubstantialnumberofchangesinthisrevisionhasmadeitimpracticaltoIndicatethechangeswithlinesinthemargin.B.DISCUSSIONIEEEStd317-1983,IEEEStandardforElectricPenetrationAssembliesinContainmentStructuresforNuclearPowerGeneratingStations,waspreparedbyaworkinggroupofSubcommittee1,GeneralPlantCriteria,oftheNuclearPowerEngineeringCommitteeoftheInstituteofElectricalandElectronicsEngineers(IEEE)andwassubsequentlyapprovedbytheIEEEStandardsBoardonSeptember23,1982.Thisstandardprescribesrequirementsforthedesign,construction,testing,qualification,andinstallationofelectricpenetrationassembliesincontainmentstructuresforstationarynuclearpowergeneratingstations.Section6.2.8(5)ofIEEEStd317-1983requiresthatthedurationofmaximumshortcircuitcurrentflowintestspecimensofelectricpenetrationassembliesbenolessthan0.033second.Thisdurationisrepresentativeoftheoperatingtimeofmolded-casecircuitbreakers.Systemdesignmayincludeuseofothercircuitbreakers,whichwillresultindurationslongerthan0.033second.Considerationshouldbegiventomodifyingthetestprogramtorepresentthedurationofmaximumshortcircuitcurrentexpectedbasedonsystemdesign.rheexternalcircuitprotectionofelectricpenetrationassembliesisbeyondthescopeofIEEEStd317-1983.ThissubjectiscoveredbyIEEEStd741-1986,CriteriafortheProtectionofClassIEPowerSystemsandEquipmentinNuclearPowerGeneratingStations.!'*IEEEStd317-1983referencesotherstandardsthatcontainvaluableinformation.Thosereferencedstandardsnotendorsedbyaregulatoryguideorincorporatedintothe0eCopiesmaybeobtainedfromtheInstituteofElectricalandElectronicsEngineers,345East47thStreet,NewYork,NY10017.USNRCREGULATORYGUIDESTheguidesareIssuedinthefollowingtenbroaddivisions:RegulatoryGuidesareissuedtodescribeandmakeavailabletothepublicmethodsacceptabletotheNRCstaffofimplementing1.PowerReactors6.ProductsspecificpartsoftheCommission'sregulations,todelineatetech-2.ResearchandTestReactors7.Transportationniquesusedbythestaffinevaluatingspecificproblemsorpostu-3.FuelsandMaterialsFacilities8.OccupationalHealthlatedaccidents,ortoprovideguidancetoapplicants.Regulatory4.EnvironmentalandSiting9.AntitrustandFinancialReviewGuidesarenotsubstitutesforregulations,andcompliancewith5.MaterialsandPlantProtection10.GeneralthemIsnotrequired.MethodsandsolutionsdifferentfromthosesetoutintheguideswillbeacceptableIftheyprovideabasisforthefindingsrequisitetotheissuanceorcontinuanceofapermitorCopiesofissuedguidesmaybepurchasedfromtheGovernmentlicensebytheCommission.PrintingOfficeatthecurrentGPOprice.InformationoncurrentGPOpricesmaybeobtainedbycontactingtheSuperintendentofThisguidewasissuedafterconsiderationofcommentsreceivedfromDocuments,U.S.GovernmentPrintingOffice,PostOfficeBoxthepublic.Commentsandsuggestionsforimprovementsinthese37082,Washington,DC20013-7082,telephone[phone]orguidesareencouragedatalltimes,andguideswillberevised,as(202)275-2171.appropriate,toaccommodatecommentsandtoreflectnewInformationorexperience.IssuedguidesmayalsobepurchasedfromtheNationalTechnicalWrittencommentsmaybesubmittedtotheRulesandProceduresinformationServiceonastandingorderbasis.DetailsonthisBranch,DRR.ADM,U.S.NuclearRegulatoryCommission,servicemaybeobtainedbywritingNTIS.5285PortRoyalRoad.Washington,DC20555.Springfield,VA22161.regulations,ifused,aretobeusedinamannerconsistentwithcurrentregulations.C.REGULATORYPOSITIONConformancewiththerequirementsofIEEEStd317-1983,IEEEStandardforElectricPe