IEC 62117-1999 核反应堆仪表加压轻水反应堆(PWR)冷停过程中堆芯充分冷却的监测
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【英文标准名称】:Nuclearreactorinstrumentation-Pressurizedlightwaterreactors(PWR)-Monitoringadequatecoolingwithinthecoreduringcoldshutdown
【原文标准名称】:核反应堆仪表加压轻水反应堆(PWR)冷停过程中堆芯充分冷却的监测
【标准号】:IEC62117-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC45A
【标准类型】:()
【标准水平】:()
【中文主题词】:安全;定义;定义;规范(验收);核电站;电气工程;验证;使用条件;冷却;核电厂;轻水反应堆;加压水冷反应堆;核反应堆;反应堆装置;仪器装置;校正;反应釜
【英文主题词】:Calibration;Cooling;Definitions;Electricalengineering;Instrumentation;Lightwaterreactors;Nuclearpowerplants;Nuclearreactors;Nuclear-electricpowerstations;Operatingconditions;Pressurizedwaterreactors;Reactorinstrumentation;Reactorvessels;Safety;Specification(approval);Verification
【摘要】:ThisInternationalStandardappliestopressurizedwaterreactors(PWRs)withconfigurationssimilartothoseshowninfigures1and2andpresentsrequirementsforthemonitoringofadequatecoolingwithinthecoreduringcoldshutdownoperations.Adequatecorecoolingcanbeachievedonlybyprovidingsufficientcoolantflowtothecoretoremovetheheat.Duringcoldshutdownoperations,corecoolingisprovidedbyforcedcirculationwiththeresidualheatremovalsystem(RHRS).However,incertainshutdownoperationswhenwaterlevelinthereactorpressurevessel(RPV)isreducedformaintenanceoperations,forcedcirculationmaybeinterrupted,andthecoremaybecomeoverheated.ItisimportantthatplantoperatorshavereliableinformationtoconfirmthatthetemperatureandflowofcoolantcirculatedthroughtheRPVisadequatetoremoveheatfromthecore.ThisinformationincludesareliablemeasurementofwaterlevelintheRPVoutletpipingusedforcirculatingtheflowfromthecoretotheRHRS,aswellasmeasurementsoftemperatureandflowofthecoolant.Anunreliablemeasurementofwaterlevelcanresultininterruptionofcoolantflowandoverheatingofthecore,aneventthathasoccurredatseveralPWRs.AnnexA,whichdescribessomeoftheseevents,identifiesconditionswhichshouldbeconsideredinthedesignofcorecoolingmonitoringinstrumentation.GoodinternationalpracticestobeusedwhendesigningneworupgradingexistingPWRcorecoolingmonitorsaresummarizedinthisstandard.RequirementsaregiveninthisstandardforinstrumentationtomonitorcorecoolingforsafeoperationofPWRsduringcoldshutdownoperationswhenthecoolanttemperatureisbelow100℃(212°F).Requirementsforcorecoolingmonitoringduringconditionsbeyondadesignbasisaccident(DBA),whichcouldbeaspecificnationalrequirementorconsideration,arenotcoveredinthisstandard.Thecorecoolingmonitoringinstrumentationforcoldshutdownfunctionswhenthereactorcoolantsystem(RCS)isconfiguredforcoldshutdownmaintenanceorrefuelling.Thecircumstancesunderwhichthesemeasurementsystemsneedtofunctionaredescribedinthisstandard.Descriptionsofdiversemeasuringprinciplesandsuitabledevicesaregiventogetherwithrequirementsforthefollowing:-operationalconditions;-installation;-operatordisplays;-testing,calibrationandmaintenance;-equipmentqualification;-documentation.
【中国标准分类号】:F81
【国际标准分类号】:27_120_20
【页数】:51P.;A4
【正文语种】:英语
【原文标准名称】:核反应堆仪表加压轻水反应堆(PWR)冷停过程中堆芯充分冷却的监测
【标准号】:IEC62117-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC45A
【标准类型】:()
【标准水平】:()
【中文主题词】:安全;定义;定义;规范(验收);核电站;电气工程;验证;使用条件;冷却;核电厂;轻水反应堆;加压水冷反应堆;核反应堆;反应堆装置;仪器装置;校正;反应釜
【英文主题词】:Calibration;Cooling;Definitions;Electricalengineering;Instrumentation;Lightwaterreactors;Nuclearpowerplants;Nuclearreactors;Nuclear-electricpowerstations;Operatingconditions;Pressurizedwaterreactors;Reactorinstrumentation;Reactorvessels;Safety;Specification(approval);Verification
【摘要】:ThisInternationalStandardappliestopressurizedwaterreactors(PWRs)withconfigurationssimilartothoseshowninfigures1and2andpresentsrequirementsforthemonitoringofadequatecoolingwithinthecoreduringcoldshutdownoperations.Adequatecorecoolingcanbeachievedonlybyprovidingsufficientcoolantflowtothecoretoremovetheheat.Duringcoldshutdownoperations,corecoolingisprovidedbyforcedcirculationwiththeresidualheatremovalsystem(RHRS).However,incertainshutdownoperationswhenwaterlevelinthereactorpressurevessel(RPV)isreducedformaintenanceoperations,forcedcirculationmaybeinterrupted,andthecoremaybecomeoverheated.ItisimportantthatplantoperatorshavereliableinformationtoconfirmthatthetemperatureandflowofcoolantcirculatedthroughtheRPVisadequatetoremoveheatfromthecore.ThisinformationincludesareliablemeasurementofwaterlevelintheRPVoutletpipingusedforcirculatingtheflowfromthecoretotheRHRS,aswellasmeasurementsoftemperatureandflowofthecoolant.Anunreliablemeasurementofwaterlevelcanresultininterruptionofcoolantflowandoverheatingofthecore,aneventthathasoccurredatseveralPWRs.AnnexA,whichdescribessomeoftheseevents,identifiesconditionswhichshouldbeconsideredinthedesignofcorecoolingmonitoringinstrumentation.GoodinternationalpracticestobeusedwhendesigningneworupgradingexistingPWRcorecoolingmonitorsaresummarizedinthisstandard.RequirementsaregiveninthisstandardforinstrumentationtomonitorcorecoolingforsafeoperationofPWRsduringcoldshutdownoperationswhenthecoolanttemperatureisbelow100℃(212°F).Requirementsforcorecoolingmonitoringduringconditionsbeyondadesignbasisaccident(DBA),whichcouldbeaspecificnationalrequirementorconsideration,arenotcoveredinthisstandard.Thecorecoolingmonitoringinstrumentationforcoldshutdownfunctionswhenthereactorcoolantsystem(RCS)isconfiguredforcoldshutdownmaintenanceorrefuelling.Thecircumstancesunderwhichthesemeasurementsystemsneedtofunctionaredescribedinthisstandard.Descriptionsofdiversemeasuringprinciplesandsuitabledevicesaregiventogetherwithrequirementsforthefollowing:-operationalconditions;-installation;-operatordisplays;-testing,calibrationandmaintenance;-equipmentqualification;-documentation.
【中国标准分类号】:F81
【国际标准分类号】:27_120_20
【页数】:51P.;A4
【正文语种】:英语
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