Test on oil - filled and gas - pressure cables and their accessories . part 2 : internal gas - pressure cables and accessories for alternating voltages up to 275 kv 充油电缆和压气电缆及其附件的试验.第2部分:交流电压275kv及以下的内部压缩气体电缆及附件
2.
Test on oil - filled and gas - pressure cables and their accessories . part 3 : external gas - pressure gas compression cables and accessories alternating voltage up to 275 kv 充油和压气电缆及其附件的试验.第3部分:交流电压275kv及以下外部压缩气体电缆及附件