CEI EN 61557-11
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 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
| Organization: | CEI |
| Publication Date: | 1 November 2013 |
| Status: | active |
| Page Count: | 42 |
| ICS Code (Power transmission and distribution networks in general): | 29.240.01 |
| ICS Code (Measurement of electrical and magnetic quantities): | 17.220.20 |
| ICS Code (Electrical insulation in general): | 29.080.01 |
scope:
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.
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