Three-phase oil-immersed distribution transformers 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV -- Part 1: General requirements.
NORMA vydaná dňa 25.6.2004
Designation standards: UNE 21428-1:2004
Note: NEPLATNÁ
Publication date standards: 25.6.2004
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE