IEC 60364-4-43-2008 低压电气装置.第4-43部分:安全防护.过电流保护
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【英文标准名称】:Low-voltageelectricalinstallations-Part4-43:Protectionforsafety-Protectionagainstovercurrent
【原文标准名称】:低压电气装置.第4-43部分:安全防护.过电流保护
【标准号】:IEC60364-4-43-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【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/TC64
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑物;电缆;导电体;电气工程;电气设备;电气装置;电气保护设备;电气安全;加热;低电压;低压设备;小型断路器;外导线;过电流;过电流保护;过电流保护装置;过载保护装置;设备;电力装置;保护设备;保护措施;安全工程;安全措施;短路;短路保护;规范(验收);电源线路系统;热防护;零线
【英文主题词】:Buildings;Cables;Electriccables;Electricconductors;Electricalengineering;Electricalequipment;Electricalinstallations;Electricalprotectionequipment;Electricalsafety;Heating;Lowvoltage;Low-voltageequipment;Miniaturecircuit-breakers;Outerconductors;Overcurrent;Overcurrentprotection;Overcurrentprotectiondevices;Overloadprotection;Plant;Powerinstallations;Protectiondevices;Protectivemeasures;Safetyengineering;Safetymeasures;Shortcircuits;Short-circuitprotection;Specification(approval);Supplytracksystems;Thermalprotection;Zeroconductors
【摘要】:ThispartofIEC60364providesrequirementsfortheprotectionofliveconductorsfromtheeffectsofovercurrents.Thisstandarddescribeshowliveconductorsareprotectedbyoneormoredevicesfortheautomaticdisconnectionofthesupplyintheeventofoverload(Clause433)andshort-circuit(Clause434)exceptincaseswheretheovercurrentislimitedinaccordancewithClause436orwheretheconditionsdescribedin433.3(omissionofdevicesforprotectionagainstoverload)or434.3(omissionofdevicesforprotectionagainstshort-circuit)aremet.Coordinationofoverloadprotectionandshort-circuitprotectionisalsocovered(Clause435).NOTE1LiveconductorsprotectedagainstoverloadinaccordancewithClause433areconsideredtobeprotectedalsoagainstfaultslikelytocauseovercurrentsofamagnitudesimilartooverloadcurrents.NOTE2Therequirementsofthisstandarddonottakeaccountofexternalinfluences,NOTE3Protectionofconductorsaccordingtothisstandarddoesnotnecessarilyprotecttheequipmentconnectedtotheconductors.NOTE4Flexiblecablesconnectingequipmentbyplugsandsocket-outlettofixedinstallationsarenotpartofthescopeofthisstandardandforthisreasonarenotnecessarilyprotectedagainstovercurrent.NOTE5Disconnectiondoesnotmeanisolationinthisstandard.
【中国标准分类号】:P91
【国际标准分类号】:29_120_50;91_140_50
【页数】:64P.;A4
【正文语种】:英语
【原文标准名称】:低压电气装置.第4-43部分:安全防护.过电流保护
【标准号】:IEC60364-4-43-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【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/TC64
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑物;电缆;导电体;电气工程;电气设备;电气装置;电气保护设备;电气安全;加热;低电压;低压设备;小型断路器;外导线;过电流;过电流保护;过电流保护装置;过载保护装置;设备;电力装置;保护设备;保护措施;安全工程;安全措施;短路;短路保护;规范(验收);电源线路系统;热防护;零线
【英文主题词】:Buildings;Cables;Electriccables;Electricconductors;Electricalengineering;Electricalequipment;Electricalinstallations;Electricalprotectionequipment;Electricalsafety;Heating;Lowvoltage;Low-voltageequipment;Miniaturecircuit-breakers;Outerconductors;Overcurrent;Overcurrentprotection;Overcurrentprotectiondevices;Overloadprotection;Plant;Powerinstallations;Protectiondevices;Protectivemeasures;Safetyengineering;Safetymeasures;Shortcircuits;Short-circuitprotection;Specification(approval);Supplytracksystems;Thermalprotection;Zeroconductors
【摘要】:ThispartofIEC60364providesrequirementsfortheprotectionofliveconductorsfromtheeffectsofovercurrents.Thisstandarddescribeshowliveconductorsareprotectedbyoneormoredevicesfortheautomaticdisconnectionofthesupplyintheeventofoverload(Clause433)andshort-circuit(Clause434)exceptincaseswheretheovercurrentislimitedinaccordancewithClause436orwheretheconditionsdescribedin433.3(omissionofdevicesforprotectionagainstoverload)or434.3(omissionofdevicesforprotectionagainstshort-circuit)aremet.Coordinationofoverloadprotectionandshort-circuitprotectionisalsocovered(Clause435).NOTE1LiveconductorsprotectedagainstoverloadinaccordancewithClause433areconsideredtobeprotectedalsoagainstfaultslikelytocauseovercurrentsofamagnitudesimilartooverloadcurrents.NOTE2Therequirementsofthisstandarddonottakeaccountofexternalinfluences,NOTE3Protectionofconductorsaccordingtothisstandarddoesnotnecessarilyprotecttheequipmentconnectedtotheconductors.NOTE4Flexiblecablesconnectingequipmentbyplugsandsocket-outlettofixedinstallationsarenotpartofthescopeofthisstandardandforthisreasonarenotnecessarilyprotectedagainstovercurrent.NOTE5Disconnectiondoesnotmeanisolationinthisstandard.
【中国标准分类号】:P91
【国际标准分类号】:29_120_50;91_140_50
【页数】:64P.;A4
【正文语种】:英语
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