GB/T 38658—2020 3.6 kV〜40.5 kV
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
GuMance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and induding 40.5 kV (IEC/TR 62271-307：2015 , High-voltage switchgear and controlgear— Part 307: Guidance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV«MOD)
2020-03-31 发布
2020-10-01 实施