DIN 42500-1/A1:1996-04
Отменен
Three-phase oil-immersed distribution transformers 50 Hz, 50 up to 2500 kVA - Part 1: General requirements and requirements for transformers U<(Index)m> up to 24 kV; Amendment A1:1995-03; German version HD 428.1 S1/A1:1995
— 3 стр.
