Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Resistance of earth connection and equipotential bonding.
NORMA vydaná dňa 29.6.2007
Designation standards: BS EN 61557-4:2007
Note: NEPLATNÁ
Publication date standards: 29.6.2007
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Kategória: Technické normy BS