BS 787:1938

Flame proof air break electrically operated gate end boxes (for use on 3-phase a.c. circuits up to 650 volts) suitable for the requirements of the mining industry..

NORMA vydána dne 25.9.1952

The information about the standard:

Designation standards: BS 787:1938
Note: NEPLATNÁ
Publication date standards: 25.9.1952
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS