标准摘要
[中文适用范围]： IEC 61557 的这一部分规定了用于测试已安装在配电系统中的 A 型和 B@ 型剩余电流监视器 (RCM) 有效性的测试设备的要求。该测试设备可用于任何类型的网络，如 TN@ TT 或 IT 系统。测试设备还可用于测试 IT 系统中的定向判别 RCM。 [外文原描述]： IEC 61557-11:2009 specifies the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems. This test equipment can be used in any kind of network like a TN, TT or IT system. The test equipment may also be used for testing directionally discriminating RCMs in IT-Systems.This part is to be used in conjunction with IEC 61557-1:2007, Part 1: General requirements.
英文名称Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systems