
Porcelain insulators for overhead power lines 3,000 volts and upwards.
NORM herausgegeben am 17.11.1930
Designation standards: BS 137:1930
Note: UNGÜLTIG
Publication date standards: 17.11.1930
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technische Normen BS