This part of IEC 61557 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.
61557-11-2009由IEC - International Electrotechnical Commission 发布于 2009-01-01,并于 2009-01-16 实施。
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