额定电压1kV(Um=1.2kV)到35kV(Um=40.5kV) 挤包绝缘电力电缆及其附件 第1部分：额定电压1kV(Um=1.2kV)和3kV(Um=3.6kV)电缆 Power cables with extruded insulation and their accessories for rated voltages from 1kV (Um=1.2kV) up to 35kV (Um=40.5kV) Par
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