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DIN 42500:1967-04

Отменен
Transformers with copper windings; oil immersed natural cooling (S), three-phases, 50 Hz up to 630 kVA and insulation class 20 N (EEC standard series) — 2 стр.
ICS
29.180 Transformers. Reactors / Трансформаторы. Реакторы