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BS EN 50464-4:2007

Действует
Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV. Requirements and tests concerning pressurised corrugated tanks — 6 стр.
ICS
29.180 Transformers. Reactors / Трансформаторы. Реакторы