Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3150 kVA, with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. National complementary annex
NORMA vydána dne 1.2.2023
Designation standards: UNE 21538-1:2023
Publication date standards: 1.2.2023
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE