GB/T 38658-20203.6kV~40.5kV交流金属封闭开关设备和控制设备型式试验有效性的延伸导则标准
英文:Guidance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltag...
英文:Guidance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltag...