RG1.210 核电厂安全相关电厂充电器和逆变器的鉴定 2008

TheNRCissuesregulatoryguidestodescribeandmakeavailabletothepublicmethodsthattheNRCstaffconsidersacceptableforuseinimplementingspecificpartsoftheagency=sregulations,techniquesthatthestaffusesinevaluatingspecificproblemsorpostulatedaccidents,anddatathatthestaffneedsinreviewingapplicationsforpermitsandlicenses.Regulatoryguidesarenotsubstitutesforregulations,andcompliancewiththemisnotrequired.MethodsandsolutionsthatdifferfromthosesetforthinregulatoryguideswillbedeemedacceptableiftheyprovideabasisforthefindingsrequiredfortheissuanceorcontinuanceofapermitorlicensebytheCommission.Thisguidewasissuedafterconsiderationofcommentsreceivedfromthepublic.Regulatoryguidesareissuedin10broaddivisionsC1,PowerReactors;2,ResearchandTestReactors;3,FuelsandMaterialsFacilities;4,EnvironmentalandSiting;5,MaterialsandPlantProtection;6,Products;7,Transportation;8,OccupationalHealth;9,AntitrustandFinancialReview;and10,General.ElectroniccopiesofthisguideandotherrecentlyissuedguidesareavailablethroughtheNRC=spublicWebsiteundertheRegulatoryGuidesdocumentcollectionoftheNRC=sElectronicReadingRoomat=sAgencywideDocumentsAccessandManagementSystem(ADAMS)at(DraftwasissuedasDG-1148,datedJuly2007)QUALIFICATIONOFSAFETY-RELATEDBATTERYCHARGERSANDINVERTERSFORNUCLEARPOWERPLANTSA.INTRODUCTIONThisguidedescribesamethodthatthestaffoftheU.S.NuclearRegulatoryCommission(NRC)considersacceptableincomplyingwithregulationsforthequalificationofsafety-relatedbatterychargersandinvertersfornuclearpowerplants.Title10,Part50,“DomesticLicensingofProductionandUtilizationFacilities,”oftheCodeofFederalRegulations(10CFRPart50)1requiresthatstructures,systems,andcomponentsthatareimportanttosafetyinanuclearpowerplantmustbedesignedtoaccommodatetheeffectsofenvironmentalconditions(i.e.,remainfunctionalunderpostulateddesign-basisevents).Towardthatend,thegeneralrequirementsappearinGeneralDesignCriterion(GDC)1,“QualityStandardsandRecords,”GDC2,“DesignBasesforProtectionAgainstNaturalPhenomena,”GDC4,“EnvironmentalandDynamicEffectsDesignBases,”andGDC23,“ProtectionSystemFailureModes,”ofAppendixA,“GeneralDesignCriteriaforNuclearPowerPlants,”to10CFRPart50.Augmentingthosegeneralrequirements,thespecific1AllNRCregulationslistedhereinareavailableelectronicallythroughtheElectronicReadingRoomontheNRC’spublicWebsite,at’sPublicDocumentRoom(PDR)at11555RockvillePike,Rockville,MD;themailingaddressisUSNRCPDR,Washington,DC20555;telephone[phone]or(800)397-4209;fax[phone];[e-mail]1.210,Page2requirementspertainingtothequalificationofcertainelectricalequipmentimportanttosafetyappearin10CFR50.49,“EnvironmentalQualificationofElectricEquipmentImportanttoSafetyforNuclearPowerPlants.”Inaddition,CriterionIII,“DesignControl,”ofAppendixB,“QualityAssuranceCriteriaforNuclearPowerPlants,”to10CFRPart50requiresthatwhereatestprogramisusedtoverifytheadequacyofaspecificdesignfeature,itshouldincludesuitablequalificationtestingofaprototypeunitunderthemostseveredesign-basisevent.Thisregulatoryguidecontainsinformationcollectionrequirementscoveredby10CFRPart50thattheOfficeofManagementandBudget(OMB)approvedunderOMBcontrolnumber3150-0011.TheNRCmayneitherconductnorsponsor,andapersonisnotrequiredtorespondto,aninformationcollectionrequestorrequirementunlesstherequestingdocumentdisplaysacurrentlyvalidOMBcontrolnumber.B.DISCUSSIONTheWorkingGrouponBatteryChargersandInverters(SC2.13),partoftheNuclearPowerEngineeringCommitteeoftheInstituteofElectricalandElectronicsEngineers(IEEE),developedIEEEStd650-2006,“IEEEStandardforQualificationofClass1EStaticBatteryChargersandInvertersforNuclearPowerGeneratingStations,”publishedonAugust31,2006.2TheIEEEStandardsBoardapprovedIEEEStd650-2006onJune8,2006.Thatstandardprovidesgeneralrequirements,direction,andmethodsforqualifyingsafety-relatedstaticbatterychargersandinvertersforserviceinnuclearpowerplants.Thedemonstrationthataninstalledbatterychargerorinverterwillmeetitsdesignspecificationrequiresmanystepsinaprogramofdesign,fabrication,qualityassurance,qualification,transportation,storage,installation,maintenance,periodictesting,andsurveillance.However,thescopeofIEEEStd650-2006islimitedtoqualification.Verifyingtheadequacyofaspecificdesign,suchthatthebatterychargersandinvertersremainfunctionalunderpostulatedevents,shouldbeaccomplishedusingqualificationmethods(i.e.,typetesting,operatingexperience,analysisasasupplementtotypetestingandoperatingexperience,ongoingqualification,oranycombinationthereof).Clause5.3.1.7ofIEEEStd650-2006referencesIEEEStd344-2004,“RecommendedSeismicQualificationofClass1EEquipmentforNuclearPowerGeneratingStations,”andprovidesadditionalguidanceforseismictesting.Recentstudiesrelatedtotheearlysitepermitapplicationsat