DIN EN 50464-1-2007 最高压力不超过36kV的设备用50Hz、50kVA至2500kVA的三相油浸式配电变压器.第1部分:一般要求
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