RG1.120 核电站火灾防护导则 1977

0UNITEDSTATES/NUCLEARREGULATORYCOMMISSIONWASHINGTON.D.C.20555November7,1977REGULATORYGUIDEDISTRIBUTIONLIST(DIVISION1)EnclosedisacopyofRevision1ofRegulatoryGuide1.120,FireProtectionGuidelinesforNuclearPowerPlants.Thisguidewasinitiallyissuedfora60-dayperiodofcommentinJune1976.Thestaffreceivedmorethan50letterscommentingonboththeregulatoryguideandBranchTechnicalPositionAPCSB9.5-1,whichisapartoftheStandardReviewPlan(NUREG-75/087)andwhichformedthebasisfortheregulatoryguide.Alllettersofcommentreceivedwereevaluatedbythestaffanditsfireprotectionconsultantseventhoughmanylettersarrivedwellafterthe60-daycommentperiodhadelapsed,someaslateasDecember27,1976.TheguidewasreviewedbytheACRSFireProtectionWorkingGroup,andtheymetwiththestaffinanopenmeetingtodiscusstheguideonMay4,1977;atthattimeadditionalpubliccommentsweresolicited.Nineteenadditionallettersofcommentwerereceivedandevaluatedbythestaff.Themajorityofthesecommentsduplicatedcommentspreviouslyreceivedandconsideredinthedevelopmentoftheguide.In.viewofthemanychangesmadeasaresultofthefirstpubliccommentperiod,thisguideisbeingissuedforafurtherextendedcommentperiodofoneyear.Attheconclusionofthecommentperiodthestaffwillconsiderthepubliccommentsinconjunctionwithanin-depthevaluationofdifferentapproachestoplantfireprotectionforfutureplants.Itisexpectedthatthisevaluationwillbecompletedwithintwoyearsofthisissuanceoftheguide.Becauseoftheextendedcommentperiodforthisregulatoryguide,BranchTechnicalPositionASB9.5-1willcontinuetobeusedintheevaluationoffireprotectionprovisionsofoperatingnuclearpowerplantsandofapplicationscurrentlyunderreviewforconstructionpermitsandoperatinglicensesandtheevaluationoffutureapplicationsforoperatinglicensesforplantsnowunderconstruction.BranchTechnicalPositionASB9.5-1hasbeenrevisedtoreflectthenecessarychangessinceitsinitialissuanceandRevision1oftheBranchTechnicalPositionisconcurrentlybeingissuedandisavailabletothepublicandapplicants.1RobertB.Minogue,DirectorOfficeofStandardsDevelopmentEnclosureRegulatoryGuide1.120,Revision1U.S.NUCLEARREGULATORYCOMMISSIONRevision1*November1977REGULATORYGUIDEOFFICEOFSTANDARDSDEVELOPMENT4RREGULATORYGUIDE1.120:......FIREPROTECTIONGUIDELINESFORNUCLEARPOWitPLANTSUSNRCREGULATORYGUIDESCommentsshouldbesenttotheSecretaryoftheCommission.US,NucleaRequlatoryCommission.Washington.D.C.20555.Attention.DockelingandServiceRegulatoryGuidesareissuedtodescribeandmakeavailabletothepublicmethOdtBranch.acceptabletotheNRCstaffofimolementingspecificpatsoftheCommissuon'sregulations,todelineatetechniquesusedbythestaffinevaluatingspecificproblemsTheguidesareissuedinthefollowingtenbroaddivisionsorpostulatedaccidents,ortoprovideguidancetoapplicants.RegulatoryGuideswenotsubstitutesforregulations,andcompliancewiththemisnotrSquired1.PowerReactors6.ProductsMethodsandsolutionsdifferentfromthosesetoutintheguideswllbeaccept..ResendTeteactors7.Transportationableoftheyprovideabasis.forthefindingsrequisietotheissuanceofcontiniuance3.FuelsandMaterialsFacilities8.OccupationalHealhh4.EnvironmentalandSiting9.AntitrustReviewofapermitorliscesebytheComnmirton.5.MaterialsandPlantProtection10.GeneralCommentsandsugestionsforimprovementsintheseguidesaeenicouraeatallRequestsforsinglecopiesofissuedguides(wfhichmaybereproducedforforplacetimes,andguideswillberevired.asapleoeriate,toaccommodatecommnentsendmentonanautomaticdistributionlistforsingleicoptsoffutureguidesinspecifictoreflactnewinformationorexperience.ThisguidewasrevisedasaresultofdivisionsshouldbemadeinwritingtotheUS.NuclearRegulatoryCommision.substantivecommentsreceivedfromthepublicandadditionalstaffreview.Washington.DC20555.AttentionDweclor.DivisionofDocumentControlThisguide,originallyissuedforcommentinJune1976,wasrevisedasaresultofsubstantivecommentsreceivedfromthepublicandadditionalstaffreview.Itisnowbeingissuedforanadditionalextendedcommentperiodofoneyear.TABLEOFCONTENTSPageA.INTRODUCTION.................................................1B.DISCUSSION..........................................................21.DefenseinDepth.....................................................*2.UseofWateronElectricalCableFires.................................3.EstablishmentandUseofFireAreas....................................34.Definitions..........................................................C.REGULATORYPOSITION.......................................................1.OverallRequirementsoftheFireProtectionProgram........................5a.Personnel......................................................5b.FireHazardAnalysis..........................................6c.FireSuppressionSystemDesignBasis.................................6d.SimultaneousEvents....................................................7e.ImplementationofFireProtectionPrograms.............................2.AdministrativeProcedures,Controls,andFireBrigade......................73.QualityAssuranceProgram..................................................8a.DesignControlandProcurementDocumentControl........................9b.Instructions,Procedures,andDrawings............