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. Section 1: Requirement for multi-voltage transformers in high-voltage.
NORMA vydaná dňa 4.5.2011
Designation standards: UNE 21428-1-1:2011
Note: NEPLATNÁ
Publication date standards: 4.5.2011
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE