GB/T 32580.2-2016 in English

《GB/T 32580.2-2016轨道交通 地面装置 交流开关设备的特殊要求 第2部分：Un大于1kV的单相隔离开关、接地开关和负荷开关》由TC278（全国轨道交通电气设备与系统标准化技术委员会）归口，TC278SC3（全国轨道交通电气设备与系统标准化技术委员会牵引供电分会）执行，主管部门为国家铁路局。

Scope

This part of GB/T 32580 specifies single-phase isolating switches, earthing switches and load switches for electrified railways with nominal voltages of 25 kV, 2×25 kV and 50 kV and a frequency of 50 Hz fixedly installed indoors or outdoors. This section applies to double-pole isolating switches, earthing switches and load switches (including load isolating switches and ordinary load switches) that adopt the following connection methods: --One pole is connected to the contact line on the line, the other pole is connected to the positive feeder, the positive The feeder is erected along the same track, and the line voltage is increased by connecting the AT autotransformer at a certain distance; --or the two-pole series connection of the isolating switch, the grounding switch and the load switch (including the load isolating switch and the ordinary load switch) is used to provide Safety isolation (such as two fractures connected in series).