
Porcelain insulators for overhead power lines 3,000 - 150,000 volts.
NORM herausgegeben am 11.5.1922
Designation standards: BS 137:1922
Note: UNGÜLTIG
Publication date standards: 11.5.1922
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technische Normen BS