RG1.054 I, II, III级防护涂层 2000

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]ideareavailableontheinternetatNRC’shomepageat(DraftwasissuedasDG-1076)SERVICELEVELI,II,ANDIIIPROTECTIVECOATINGSAPPLIEDTONUCLEARPOWERPLANTSA.INTRODUCTIONInAppendixAto10CFRPart50,GeneralDesignCriteriaforNuclearPowerPlants,Criterion1,QualityStandardsandRecords,requires,inpart,thatstructures,systems,andcomponentsimportanttosafetybedesigned,fabricated,erected,andtestedtoqualitystandardscommensuratewiththeimportanceofthesafetyfunctionstobeperformed.Criterion1alsorequiresthataqualityassuranceprogrambeestablishedandimplementedinordertoprovideadequateassurancethatthesestructures,systems,andcomponentswillsatisfactorilyperformtheirsafetyfunctions.InAppendixAto10CFRPart50,Criterion4,EnvironmentalandDynamicEffectsDesignBases,requires,inpart,thatstructures,systems,andcomponents(SSCs)importanttosafetybedesignedtobecompatiblewiththeenvironmentalconditionsassociatedwithnormaloperation,maintenance,testing,andpostulatedaccidents,includingloss-of-coolantaccidents.AppendixBto10CFRPart50,QualityAssuranceCriteriaforNuclearPowerPlantsandFuelReprocessingPlants,establishesoverallqualityassuranceprogramrequirementsforthedesign,fabrication,construction,andoperationofsafety-relatednuclearpowerplantSSCs.1.54-2Themaintenancerule,10CFR50.65,RequirementsforMonitoringtheEffectivenessofMaintenanceatNuclearPowerPlants,includesinitsscopesafety-relatedSSCsthatarereliedupontoremainfunctionalduringandfollowingdesignbasiseventswithrespecttospecifiedfunctionsandnon-safety-relatedSSCs(1)thatarereliedupontomitigateaccidentsortransientsorareusedinplantemergencyoperatingprocedures,(2)whosefailurecouldpreventsafety-relatedSSCsfromfulfillingtheirsafety-relatedfunction,and(3)whosefailurecouldcauseareactorscramoranactuationofasafety-relatedsystem.Totheextentthatprotectivecoatingsmeetthesecriteria,theyarewithinthescopeofthemaintenancerule.Themaintenancerulerequiresthatlicenseesmonitortheeffectivenessofmaintenanceforprotectivecoatingswithinitsscope(asdiscretesystemsorcomponentsoraspartofanySSC),ordemonstratethattheirperformanceorconditionisbeingeffectivelycontrolledthroughtheperformanceofappropriatepreventivemaintenance,inaccordancewith10CFR50.65(a)(1)or(a)(2),asappropriate.FurtherguidanceisprovidedinRevision2ofRegulatoryGuide1.160,MonitoringtheEffectivenessofMaintenanceatNuclearPowerPlants(Ref.1).ThisrevisiontoRegulatoryGuide1.54isbeingdevelopedinaccordancewithPublicLaw104-113,OMBCircularA-119,andtheNRC’sStrategicPlanforFY1997-2002,whichencouragesindustrytodevelopcodes,standards,andguidesthatcanbeendorsedbytheNRCandcarriedoutbyindustry.TheASTMstandardscitedintheRegulatoryPositionofthisguidefortheselection,qualification,application,andmaintenanceofprotectivecoatingsinnuclearpowerplantshavebeenreviewedbytheNRCstaffandfoundtobeacceptablewiththeexceptionsnoted.Theinformationcollectionscontainedinthisregulatoryguidearecoveredbytherequirementsof10CFRPart50,whichwereapprovedbytheOfficeofManagementandBudget,approvalnumber3150-0011.IfameansusedtoimposeaninformationcollectiondoesnotdisplayacurrentlyvalidOMBcontrolnumber,theNRCmaynotconductorsponsor,andapersonisnotrequiredtorespondto,theinformationcollection.B.DISCUSSIONProtectivecoatings(paints)havebeenusedextensivelyinnuclearpowerplantstoprotectthesurfacesoffacilitiesandequipmentfromcorrosionandcontaminationfromradionuclidesand