DIN EN 62271-211:2014 高压开关设备和控制设备. 第211部分: 额定电压大于52 kV的电力变压器和气体绝缘金属封闭式开关设备的直接连接 (IEC 62271-211-2014); 德文版本EN 62271-211-2014
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV (IEC 62271-211:2014); German version EN 62271-211:2014