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 vydána dne 22.10.2004
Designation standards: UNE 21428-1-1:2004
Note: NEPLATNÁ
Publication date standards: 22.10.2004
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE