
Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1000 V. Methods of test.
NORMA vydána dne 7.6.1974
Designation standards: BS 137-1:1970
Note: NEPLATNÁ
Publication date standards: 7.6.1974
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS