Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 2: Requirements for dual-voltage transformers in low-voltage.
NORMA vydaná dňa 1.12.2021
Designation standards: UNE 21428-1-2:2021
Publication date standards: 1.12.2021
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE