BS EN 50495-2010 涉及爆炸风险的设备安全运行用必要安全防护装置
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【英文标准名称】:Safetydevicesrequiredforthesafefunctioningofequipmentwithrespecttoexplosionrisks
【原文标准名称】:涉及爆炸风险的设备安全运行用必要安全防护装置
【标准号】:BSEN50495-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-09-30
【实施或试行日期】:2010-09-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义(术语);电机;日用电器;电气设备;设备安全性;爆炸危险;预防爆炸;防爆装置;防爆;爆炸物;可燃性环境;仪器;小型熔断器;防护电气设备;安全装置;安全性要求;测试
【英文主题词】:Definitions;Electricmachines;Electricalappliances;Electricalequipment;Equipmentsafety;Explosionhazard;Explosionproofness;Explosionprotection;Explosion-proof;Explosive;Flammableatmospheres;Instruments;Miniaturefuses;Protectedelectricalequipment;Safetydevices;Safetyrequirements;Testing
【摘要】:ThisEuropeanStandardspecifiestherequirementsofelectricalsafetydevices,whichareusedtoavoidpotentialignitionsourcesofequipmentinexplosiveatmospheres.Thisalsoincludessafetydevices,whichareoperatedoutsideareaswithexplosiveatmospheres,toguaranteethesafefunctionofequipmentwithrespecttoexplosionhazards.NOTE1ThisEuropeanStandardcanalsobeusedtodesignandassesssafetydevicesforprotectivesystems.Electricalequipment,whichisintendedforuseinexplosiveatmospheres,mayrelyonthecorrectoperationofsafetydeviceswhichforexamplemaintaincertaincharacteristicsoftheequipmentwithinacceptablelimits.Examplesofsuchsafetydevicesaremotorprotectiondevices(tolimittemperatureriseduringstallconditions)andcontrollingdevicesforpressurisationprotection.Bymeansofcontrolormonitoringdevices,sourcesofignitioncanbeavoided.Thereforethesedevicesshallexecutetheappropriatemeasuresintheappropriatereactiontime,forexampletheinitiationofanalarmoranautomaticshutdown.NOTE2Somepotentialignitionsourcesmightnotbecontrollablebysafetydevices,e.g.electrostaticdischarges,ignitionsparkscausedbymechanicalimpact.Alsosomeprotectionmeasuresmightnotbecontrollablebysafetydevices,e.g.flameproofenclosures.Safetydevices,whosesafetyfunctioncannotadequatelybespecifiedundertheexistingEN60079orEN61241seriesofstandards,shalladditionallybedesignedaccordingtotherequirementsofthisstandard.Generallyforcomplexsafetydevicesappropriatedesignrequirementsarenotprovidedintheexistingtypesofprotection(see3.13forthedefinitionofacomplexdevice).NOTE3IngeneralthelevelsofsafetyrequiredbythisstandardareconsideredtobeequivalenttothoseprovidedbyconformitytoEN60079-0orEN61241-0.Noincreaseordecreaseofsafetyisintendedorrequired.SimilarlyneitherincreasenordecreaseofsafetywithrespecttoEN61508seriesisintended.Safetydevicescanbeclassifiedin2types:a)devices,whichareincludedascomponentintheequipmentundercontrol(see3.8).Thecombinedapparatusisconsideredasequipment.EXAMPLES-thermalswitchorthermistortoavoidoverheating,-temperaturemonitoringdevicestocontrolthesurfacetemperature.b)devices,whichareinstalledseparatelyfromtheequipmentundercontrolandconsideredasassociatedapparatusexclusivelyforaspecifictypeofprotectionorspecificequipmentundercontrol.Thecombinedapparatusisconsideredasasystem.EXAMPLES-externalcontroldevicesorsafetyrelatedpartsofacontrolsystemfortypeofprotectionpressurisation,-overloadprotectivedeviceforelectricmotorsoftypeofprotectionExe‘IncreasedSafety’,-controldevicesforbatterychargingequipment(protectionagainstoverchargingordeepdischarging),-leveldetectorsforthecontrolofsubmersiblepumps.Exclusionsfromthisstandard:Safetydevices,wherethesafetyfunctionisadequatelycoveredintheexistingstandardsofEN60079andEN61241seriesdonotneedanyadditionalassessmentaccordingtothisstandard.EXAMPLESIntrinsicallysafeassociatedapparatus,fuses,electromechanicaloverloadprotection,simplethermalprotectiondevices(e.g.thermalfuses,thermalswitches).Thestandarddoesnotincludedevicesorsystemstopreventtheoccurrenceofexplosiveatmospheres,e.g.inertingsystems,ventilationinworkplacesandcontainers/vessels.Gasdetectors,whicharecoveredunderEN61779series,EN50271orEN50402arealsoexcludedfromthescopeofthisstandard.Thisstandarddoesnotdealwithprotectionbycontrolofignitionsource‘b’fornon-electricalequipmentasdefinedinEN13463-6.
【中国标准分类号】:C67
【国际标准分类号】:13_230;29_260_20
【页数】:42P.;A4
【正文语种】:英语
【原文标准名称】:涉及爆炸风险的设备安全运行用必要安全防护装置
【标准号】:BSEN50495-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-09-30
【实施或试行日期】:2010-09-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义(术语);电机;日用电器;电气设备;设备安全性;爆炸危险;预防爆炸;防爆装置;防爆;爆炸物;可燃性环境;仪器;小型熔断器;防护电气设备;安全装置;安全性要求;测试
【英文主题词】:Definitions;Electricmachines;Electricalappliances;Electricalequipment;Equipmentsafety;Explosionhazard;Explosionproofness;Explosionprotection;Explosion-proof;Explosive;Flammableatmospheres;Instruments;Miniaturefuses;Protectedelectricalequipment;Safetydevices;Safetyrequirements;Testing
【摘要】:ThisEuropeanStandardspecifiestherequirementsofelectricalsafetydevices,whichareusedtoavoidpotentialignitionsourcesofequipmentinexplosiveatmospheres.Thisalsoincludessafetydevices,whichareoperatedoutsideareaswithexplosiveatmospheres,toguaranteethesafefunctionofequipmentwithrespecttoexplosionhazards.NOTE1ThisEuropeanStandardcanalsobeusedtodesignandassesssafetydevicesforprotectivesystems.Electricalequipment,whichisintendedforuseinexplosiveatmospheres,mayrelyonthecorrectoperationofsafetydeviceswhichforexamplemaintaincertaincharacteristicsoftheequipmentwithinacceptablelimits.Examplesofsuchsafetydevicesaremotorprotectiondevices(tolimittemperatureriseduringstallconditions)andcontrollingdevicesforpressurisationprotection.Bymeansofcontrolormonitoringdevices,sourcesofignitioncanbeavoided.Thereforethesedevicesshallexecutetheappropriatemeasuresintheappropriatereactiontime,forexampletheinitiationofanalarmoranautomaticshutdown.NOTE2Somepotentialignitionsourcesmightnotbecontrollablebysafetydevices,e.g.electrostaticdischarges,ignitionsparkscausedbymechanicalimpact.Alsosomeprotectionmeasuresmightnotbecontrollablebysafetydevices,e.g.flameproofenclosures.Safetydevices,whosesafetyfunctioncannotadequatelybespecifiedundertheexistingEN60079orEN61241seriesofstandards,shalladditionallybedesignedaccordingtotherequirementsofthisstandard.Generallyforcomplexsafetydevicesappropriatedesignrequirementsarenotprovidedintheexistingtypesofprotection(see3.13forthedefinitionofacomplexdevice).NOTE3IngeneralthelevelsofsafetyrequiredbythisstandardareconsideredtobeequivalenttothoseprovidedbyconformitytoEN60079-0orEN61241-0.Noincreaseordecreaseofsafetyisintendedorrequired.SimilarlyneitherincreasenordecreaseofsafetywithrespecttoEN61508seriesisintended.Safetydevicescanbeclassifiedin2types:a)devices,whichareincludedascomponentintheequipmentundercontrol(see3.8).Thecombinedapparatusisconsideredasequipment.EXAMPLES-thermalswitchorthermistortoavoidoverheating,-temperaturemonitoringdevicestocontrolthesurfacetemperature.b)devices,whichareinstalledseparatelyfromtheequipmentundercontrolandconsideredasassociatedapparatusexclusivelyforaspecifictypeofprotectionorspecificequipmentundercontrol.Thecombinedapparatusisconsideredasasystem.EXAMPLES-externalcontroldevicesorsafetyrelatedpartsofacontrolsystemfortypeofprotectionpressurisation,-overloadprotectivedeviceforelectricmotorsoftypeofprotectionExe‘IncreasedSafety’,-controldevicesforbatterychargingequipment(protectionagainstoverchargingordeepdischarging),-leveldetectorsforthecontrolofsubmersiblepumps.Exclusionsfromthisstandard:Safetydevices,wherethesafetyfunctionisadequatelycoveredintheexistingstandardsofEN60079andEN61241seriesdonotneedanyadditionalassessmentaccordingtothisstandard.EXAMPLESIntrinsicallysafeassociatedapparatus,fuses,electromechanicaloverloadprotection,simplethermalprotectiondevices(e.g.thermalfuses,thermalswitches).Thestandarddoesnotincludedevicesorsystemstopreventtheoccurrenceofexplosiveatmospheres,e.g.inertingsystems,ventilationinworkplacesandcontainers/vessels.Gasdetectors,whicharecoveredunderEN61779series,EN50271orEN50402arealsoexcludedfromthescopeofthisstandard.Thisstandarddoesnotdealwithprotectionbycontrolofignitionsource‘b’fornon-electricalequipmentasdefinedinEN13463-6.
【中国标准分类号】:C67
【国际标准分类号】:13_230;29_260_20
【页数】:42P.;A4
【正文语种】:英语
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