DIN EN 62271-204:2012 高压开关设备和控制设备.第204部分:额定电压高于52 kV的刚性气体绝缘输电线路(IEC 62271-204-2011).德文版本EN 62271-204-2011
High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV (IEC 62271-204:2011); German version EN 62271-204:2011