GB/T 25890.9-2010
轨道交通.地面装置 直流开关设备 第7-3部分:直流牵引供电系统专用测量、控制和保护装置 隔离电压变送器和其他电压测量设备
Railway applications.Fixed installations.DC switchgear.Part 7-3:Mearsurement、control and protection devices for specific use in d.c traction systems.Isolating voltage transducers and other voltage measuring devices