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BS EN 61557-11:2009

BS EN 61557-11:2009

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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 – Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systems

Published By Publication Date Number of Pages
BSI 2009 24
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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.

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BS EN 61557-11:2009
$142.49