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
|Publication Date:||1 January 2009|
|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|
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.