IEC 61557-1 Amd.1 Ed. 3.0 b:2024
IEC 61557-1 Amd.1 Ed. 3.0 b:2024 Amendment 1 to 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 1: General requirements
Amendment byInternational Electrotechnical Commission , 10/01/2024
