额定电压35kV(Um=40.5kV)及以下纸绝缘电力电缆及其附件 第1部分:额定电压30kV及以下电缆一般规定和结构要求
Paper-insulated power cables and their accessories with rated voltages up to and including 35kV - Part 1: General and construction requirements for power cables with rated voltages up to and including 30kV