Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. General requirements.
NORMA vydaná dňa 15.7.1997
Designation standards: BS EN 61557-1:1997
Note: NEPLATNÁ
Publication date standards: 15.7.1997
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Kategória: Technické normy BS