Specification for a.c. circuit-breakers of rated voltage above 1 kV. Design and construction.
NORMA vydána dne 31.8.1976
Designation standards: BS 5311-3:1976
Note: NEPLATNÁ
Publication date standards: 31.8.1976
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS