RG1.167 地震事件停机核电厂的重启动 1997

U.S.NUCLEARREGULATORYCOMMISSIONREGULATORYMarch1997GUIDEor-IOFFICEOFNUCLEARREGULATORYRESEARCHREGULATORYGUIDE1.167(DraftwasDG-1035)RESTARTOFANUCLEARPOWERPLANTSHUTDOWNBYASEISMICEVENTA.INTRODUCTIONParagraphIV(aX3)ofAppendixS,EarthquakeEngineeringCriteriaforNuclearPowerPlants,to10CFRPart50,DomesticLicensingofProductionandUtilizationFacilities,requiresshutdownofthenuclearpowerplantifvibratorygroundmotionexceedingthatoftheoperatingbasisearthquakegroundmotion(OBE)occursorifsignificantplantdamageoccurs.1Priortoresumingoperations,thelicenseemustdemonstratetotheNRCthatnofunctionaldamagehasoccurredtothosefeaturesnecessaryforcontinuedoperationwithoutunduerisktothehealthandsafetyofthepublic.ThisguideprovidesguidanceacceptabletotheNRCstaffforperforminginspectionsandtestsofnuclearpowerplantequipmentandstructurespriortorestartofaplantthathasbeenshutdownbyaseismicevent.Theinformationcollectionscontainedinthisregulatoryguidearecoveredbytherequirementsof10CFRPart50,whichwereapprovedbytheOfficeofManagementandBudget,approvalnumber3150--0011.ThelRegulatoryGuide1.166,Pre-EarthquakePlanningandImmediateNuclearPowerPlantOperatorPostearthquakeActions,providescriteriaforplantshutdown.USNRCREGULATORYGUIDESRegulatoryGuidesareWisuedtodescribeardmakeavailabletothepublicsuchInformatIonasmethodsacceptabletotheNRCstaffforimplementingspecificpartsoftheCornmission'sreguiaelone,tedhfquesusedbythestaffinevaluatingspecificproblemsorpostulatedaccddents,anddataneededbydheNRCstaffInitsreviewofapplicationsforpermltsanlicenses.Regulatoryguidesaenotsubstitutesforregulations,andcompliancewiththemIsnotrequired.MethodsendsolutionsdifferentfromthosesetOutintheguideswillbeacceptable9theyprovideabasisforteindingsrequisitetotheIssuanceorcon.tinuanceofapermitorlicensebytheCommission.ThaguidewasIssuedafterconsiderationofcommentsreceivedfromthepublic.CornmertsandsuggestionsforimprovementsIntheseguidesweencouragedstalltimes,andguideswinberevised,asapprpriate,toaccommodatecommentsandtoreflectnewInfotnnionoreiperlence.WrittencommentsmaybesubmittedtotheRulesReviewandDirectivesBranch,DFIPS,ADM,U.S.NuclearRegulatorqCommission,Washington,DC20555-0001.NRCmaynotconductorsponsor,andapersonisnotrequiredtorespondto,acollectionofinformationunlessitdisplaysacurrentlyvalidOMBcontrolnumber.B.DISCUSSIONDatafromseismicinstrumentation2andawalkdownofthenuclearpowerplant1areusedtomaketheinitialdeterminationofwhethertheplantmustbeshutdownafteranearthquake,iftheplanthasnotalreadyshutdownfromoperationalperturbationsresultingfromtheseismicevent.TheElectricPowerResearchInstitutehasdevelopedguidelinesthatwillenablelicenseestoquicklyidentifyandassessearthquakeeffectsonnuclearpowerplantsinEPRINP-6695,GuidelinesforNuclearPlantResponsetoanEarthquake,December1989.3ThisregulatoryguideaddressessectionsofEPRINP-6695thatrelatetopostshutdowninspectionandtests,inspectioncriteria,inspectionpersonnel,documentation,andlong-termevaluations.2RegulatoryGuide1.12,Revision2,NuclearPowerPlantInstrumentationforEarthquakes,describesseismicinstrumentationacceptabletotheNRCstaff.3EPRIreportsmaybeobtainedfromtheElectricPowerResearchInstitute,EPRIDistributionCenter,207CogginsDr.,RO.Box23205,PleasantHill,CA94523.TheguLideswreIssuedInthefollowingtenbroaddivisions:1.PowerReactors2.ResearchandTestReactors3.FuelsandMaterialsFaclities4.EnvironmentalmsdSiting5.MaterialsendPlantProtection6.Products7.Transportationa.o=upationalHealth9.AntirustndFinancialReview10.GeneralSinglecopiesofregulatoryguidesmaybeobtainedfreeofchargebywritingtheOfficeofAdministration,Attention:DistributionandMallServicesSection,U.S.NuclearRegulatoryCommission,Washington.DC20555-0001;orbyfaxat(301)415-2260.IssuedguidesmayalsobepurchasedfromtheNationalTechnicalInfomationServiceonastandingorderbasis.DetailsonthisservicemaybeobtainedbywritingNTIS,5285PortRoylRoad,Springfield,VA22161.EPRINP-6695hasbeensupplementedtoaddinspectionsandtestsasabasisforacceptanceofstressesinexcessofServiceLevelCandtorecommendthatengineeringevaluationsofcomponentswithcalculatedstressesinexcessofserviceLevelDfocusonareasofhighstressandincludefatigueanalyses.C.REGULATORYPOSITIONAfteraplanthasbeenshutdownbyanearthquake,theguidelinesforinspectionsandtestsofnuclearpowerplantequipmentandstructuresthatareinEPRINP-6695,depictedinFigure3-2andspecifiedinSections5.3.2,5.3.3,and5.3.4;thedocumentationspecifiedinSectionin5.3.5tobesubmittedtotheNRC;andthelong-termevaluationsthatarespecifiedinSection6.3,withtheexceptionsspecifiedbelow,areacceptabletotheNRCstaffforsatisfyingtherequirementsinParagraphIV(a)(3)ofAppendixSto10CFRPart50.1.EXCEPTIONSTOSECTION6.3.4.1OFEPRINP-66951.1Item(1)shouldread:Ifthecalculatedstressesfromtheactualseismicloadingconditionsarelessthantheallowablesforemergencyconditions(e.g.,ASMECodeLevelCServiceLimitsorequivalent)ororiginaldesignbases,theitemisconsideredacceptable,providedtheresultsofinspectionsandtests(Section5.3.2)shownodamage.1.2TheseconddashedstatementofItem(3)shouldread:-Anengineeringevaluationoftheeffectsofthecalculatedstressesonthefunctionalityoftheitem.Thise