BS 137:1930

Porcelain insulators for overhead power lines 3,000 volts and upwards.

NORMA vydaná dňa 17.11.1930

The information about the standard:

Designation standards: BS 137:1930
Note: NEPLATNÁ
Publication date standards: 17.11.1930
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS