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. Resistance of earth connection and equipotential bonding.
NORMA vydaná dňa 15.7.1997
Designation standards: BS EN 61557-4:1997
Note: NEPLATNÁ
Publication date standards: 15.7.1997
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Kategória: Technické normy BS