
Specification for insulating oil for use in transformers and oil switches and circuit breakers.
NORMA vydaná dňa 23.4.1923
Designation standards: BS 148:1923
Note: NEPLATNÁ
Publication date standards: 23.4.1923
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS