GOST IEC 61557-3-2013 Low voltage distribution systems up to 1000 V a. c. and 1500 V d. c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance
2013GOST IEC 61557-3-2013 Low voltage distribution systems up to 1000 V a. c. and 1500 V d. c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance