Draft Document - Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements; German version EN 50464-1:2007/FprAA:2011
文件草案.最高电压不超过36 kV的设备用50 Hz 50 kVA至2500 kVA的三相油浸式配电变压器.第1部分:一般要求;德文版EN 50464-1:2007/FprAA:2011