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 7. Phase sequence
NORMA vydaná dňa 1.9.2010
Designation standards: GOST R IEC 61557-7-2009
Note: NEPLATNÁ
Publication date standards: 1.9.2010
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST