...键字： 剩余电流动作保护器 电气火灾防护 直流分量影响 0引言 剩余电流动作保护器(Residual Current Protective Device,RCD)是防止人身电击和接地电弧火灾的有效保护电器，在我国已被广泛应用。
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residual current operated protective device 漏电电流动作保护器 ; 剩余电流动作保护器 ; 用剩余电流动作防护器 ; 电流式漏电保护器件
The operating principle and the use of residual current protective device is introduced, and its selection, installation and limitation are commented.
介绍了剩余电流动作保护器的工作原理及其用途，叙述了剩余电流动作保护器的选型、安装及其局限性。
In order to reduce the power cut off which caused by electric shock accident and earth-fault power cut off, it must install residual current operated protective device.
低压供用电系统中为了减少发生人身电击事故和接地故障切断电源时引起的停电，必须加装剩余电流动作保护装置。
This paper introduces the parameter selection, installation, grounding mode of low-voltage power grid and construction method of residual current operated protective device.
文中详细论述了剩余电流动作保护装置的参数选用，安装要求，低压电网接地方式及安装施工要求等。
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