低压电气装置 第4-41部分 安全防护 电击防护GB 16895.21-2011

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1、中华人民共和国国家标准GB16895.21-2011/IEC60364-4-41:2005代替GB16895.21-2004低压电气装置第4-41部分:安全防护电击防护Low-voltageelectricalinstallations-Part4-41:Protectionforsafety-Protectionagainstelectricshock(IEC60364-4-41:2005，IDT)目次前言·······································Ⅰ410序言·····································Ⅱ4

2、10.1范围···································1410.2规范性引用文件·····························1410.3通用要求································1411保护措施:自动切断电源····························2411.1通则···································2411.2对基本保护的要求····························2411.3对故障保护的要求·······················

3、·····3411.4TN系统································4411.5TT系统·······························5411.6IT系统·······························6411.7功能特低电压(FELV)·························7412保护措施:双重绝缘或加强绝缘·························8412.1通则··································8412.2对基本保护和故障保护的要求··············

4、······8413保护措施:电气分隔·······························10413.1通则···································10413.2对基本保护的要求·····························10413.3对故障保护的要求······························10414保护措施:采用SELV和PELV特低电压···············10414.1通则····································10414.2对基本保护和故障保护的要求··

5、······················11414.3SELV和PELV的电源·····························11414.4对SELV和PELV回路的要求·························11415附加保护·····································12415.1附加保护:剩余电流保护器(RCD)·······················12415.2附加保护:辅助等电位联结···························13附录A(规范性附录)基本保护的保护措施·············

6、············14附录B(规范性附录)阻挡物和置于伸臂范围之外的保护措施················15附录C(规范性附录)适用于由熟练的或受过培训的人员操作或管理的电气装置的保护措施···························17参考文献······································19前　言本部分的全部技术内容为强制性。GB16895《建筑物(低压)电气装置》分为5个部分:—第1部分:基本原则，一般特性的评估和定义;—第4部分:安全防护;—第5部分:电气设备的选择和安装;—第6部分:检验;—第7部分:特殊装置或场所的

7、要求。本部分是GB16895的第4部分安全防护中的第4-41部分。本部分按照GB/T1.1-2009给出的规则起草。本部分代替GB16895.21-2004《建筑物电气装置第4-41部分:安全防护电击防护》。本部分与GB16895.21-2004相比，主要技术变化如下:—将部分术语与GB/T17045《电击防护装置和设备的通用部分》(idtIEC61140)标准的术语协调一致;—在完整的保护措施基础上进行合理的编排(即将正常运行情况下的直接接触防护措施和故障情况下的间接接触防护措施进行适当的有效组合);—修改(ＧB