
Electrical protection relays. Requirements for the principal families of protection relays. Specification for general requirements for measuring relays used for protection.
NORMA vydána dne 30.11.1990
Designation standards: BS 142-2-2.2:1990
Note: NEPLATNÁ
Publication date standards: 30.11.1990
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: British technical standard
Kategorie: Technické normy BS