额定电压500kV(Um=550kV)交联聚乙烯绝缘电力电缆及其附件 第3部分: 额定电压500kV(Um=550kV)交联聚乙烯绝缘电力电缆附件
Power cables with cross-linked polyethylene insulation and theiraccessories for rated voltage of 500kV(Um=550kV) - Part 3: Accessories for power cables with cross-linked polyethylene insulation for rated voltage of 500kV (Um=550kV)