
Graphical symbols for electrical power, telecommunications and electronics diagrams. Switchgear, controlgear and protective devices.
NORMA vydaná dňa 28.6.1985
Designation standards: BS 3939-7:1985
Note: NEPLATNÁ
Publication date standards: 28.6.1985
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: British technical standard
Kategória: Technické normy BS