GB/T 3906-20203.6kV~40.5kV交流金属封闭开关设备和控制设备标准
英文:Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including...
英文:Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including...