IEC 61557-6 Ed. 3.0 b:2019 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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems

standard by International Electrotechnical Commission, 07/26/2019