
POWER TRANSFORMERS. INSULATION LEVELS AND DIELECTRIC TESTS. EXTERNAL CLEARANCES IN AIR
NORMA vydaná dňa 23.11.1990
Designation standards: UNE 20101-3-1:1990
Note: NEPLATNÁ
Publication date standards: 23.11.1990
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE