RG1.127 与核电厂相关的水控制结构的检查 1978

Revision1March1978U.S.NUCLEARREGULATORYCOMMISSIONREGULATORYGUIDEOFFICEOFSTANDARDSDEVELOPMENTREGULATORYGUIDE1.127INSPECTIONOFWATER-CONTROLSTRUCTURESASSOCIATEDWITHNUCLEARPOWERPLANTSA.INTRODUCTIONParagraphs(a)(4)and(b)(4)of§50.34,ContentsofApplications:TechnicalInformation,of10CFRPart50,LicensingofProductionandUtlilizationFacilities,requireeachapplicantforaconstructionpermitoroperatinglicensetoprovideananalysisandevaluationofthedesignandperformanceofstructures,systems,andcomponentsofthefacilityforthepurposeofassessingtherisktopublichealthandsafetyresultingfromoperationofthefacility.GeneralDesignCriterion45,.InspectionofCoolingWaterSystem,ofAppendixA,GeneralDesignCriteriaforNuclearPowerPlants,to10CFRPart50requiresthatthecoolingwatersystembedesignedtopermitappropriateperiodicinspectionofimportantcomponentstoensuretheintegrityandcapabilityofthesystem.Paragraph(c)(3)of§50.36,TechnicalSpecifications,of10CFRPart50definessurveillancerequirementsasthoserelatingtotest,calibration,orinspectiontoensurethatthenecessaryqualityofsystemsandcomponentsismaintained,thatfacilityoperationwillbewithinsafelimits,andthatthelimitingconditionsofoperationwillbemet.ThisguidedescribesabasisacceptabletotheNRCstafffordevelopinganappropriateinserviceinspectionandsurveillanceprogramfor'dams,slopes,canals,andotherwater-controlstructuresassociatedwith*emergencycoolingwatersystemsorfloodprotectionofnuclearpowerplants.Guidelinesforthedesignandconstructionofthesestructureswillbepresentedinseparateguides.TheAdvisoryCommitteeonReactorSafeguardshasbeenconsultedconcerningthisguideandhasconcurredintheregulatoryposition.*Linesindicatesubstantivechangesfromthepreviousissue.B.DISCUSSIONTheNationalDamSafetyAct(PublicLaw92367)requires,inpart,thattheSecretaryoftheArmy,actingthroughtheChiefofEngineers,carryoutanationalprogramofinspectionofdams'forthepurposeofprotectinghumanlifeandproperty.Todeterminewhetheradam(includingthewatersimpoundedbythedam)constitutesadangerto.humanlifeorproperty,theSecretaryisrequiredtotakeintoconsiderationthepossibilitythatthedammightbeendangeredbyovertopping,seepage,settlement,erosion,sediment,cracking,earthmovement,earthquakes,failureofbulkheads,flashboards,gatesonconduits,orotherconditionsthatexistorthatmightoccurinanyareainthevicinityofthedam.Assoonaspracticableafterinspectionofadam,theSecretaryistonotifytheGovernoroftheStateinwhichsuchdamislocatedoftheresultsofsuchinvestigation.TheSecretaryisrequiredtonotifytheGovernorimmediatelyofanyhazardousconditionsfoundduringaninspectionandtoadvisetheGovernor,onrequest,oftimelyremedialmeasuresnecessarytomitigateorobviateanyhazardousconditions.SSection2oftheActspecificallyexcludesfromtheinspectionprogram(1)damsunderthejurisdictionoftheBureauofReclamation,theTennesseValleyAuthority,ortheInternationalBoundaryandWaterCommission,(2)damsthathavebeenconstructedpursuanttolicensesissuedundertheauthorityoftheFederalPowerAct,(3)damsthathavebeeninspectedwithinthe12-monthperiodimmediatelypriortotheenactmentofthisActbyaStateagencyandthattheGovernorofsuchStaterequestsbeexcludedfrominspection,and(4)damsthattheSecretaryoftheArmydeterminesdonotposeanythreattohumanlifeorproperty.TheSecretarymayinspectdamsthathavebeenlicensedundertheFederalPowerActonrequestoftheFederalPowerCommissionanddamsunderthejurisdictionoftheInternationalBoundatryandWaterCommissiononrequestofsuchCommission.USNRCREGULATORYGUIDESCommentsshouldbesenttotheSecretaryoftheCommission,US.NuclearRegu.latoryCommission,Washington,D.C.20555,Attention:DocketingandServiceRegulatoryGuidesareissuedtodescribeandmakeavailabletothepublicmethodsBranch.acceptabletotheNRCstaffofimplementingspecificpartsoftheCommission'sregulations,todelineatetechniquesusedbythestaffinevaluatingspecificproblemsTheguidesareissuedinthefollowingtenbroaddivisionsorpostulatedaccidents,ortoprovideguidancetoapplicants.RegulatoryGuidesarenotsubstitutesforregulations,andcompliancewiththemisnotrequired.I.PowerReactors6.ProductsMethodsandsolutionsdifferentfromthosesetOutintheguideswillbeaccept-2.ResearchandTestReactors7-Transportationableiftheyprovideabasisforthefindingsrequisitetotheissuanceorcontinuance3.FuelsandMaterialsFacilities8.OccupationalHealthofapermitorlicensebytheCo-mi~ion.4.EnvironmentalandSiting9.AntitrustReview5.MaterialsandPlantProtection10.GeneralCommentsandsuggestionsforimprovementsintheseguidesareencouragedatallRequestsforsinglecopiesofissuedguideslwhichmaybereproduced)orforplacetimes,andguideswillberevised,asappropriate,toaccommodatecommentsandmeetonanautomaticdistributionlistforsinglecopiesoffutureguidesinspecifictoreflectnewinformationorexperience.ThisguidewasrevisedasaresultofdivisionsshouldbemadeinwritingtotheUS.NuclearRegulatoryCommission,substantivecommentsreceivedfromthepublicandadditionalstaffreview.Washington,D.C.20555,Attention:Director,DivisionofDocumentControl.ThislegislationwasdevelopedasanexpressionofpublicandcongressionalconcernoverthesafetyofdamsintheUnitedStates.OnAugust28,1974,theCorpsofEngineerspublishedProposedGuidelinesforSafetyInspectionofDamsint