To intensify basic external insulation level of power system-fundamental way for prevention of large-scale pollution flashover 防止大面积污闪的根本出路是提高电网的基本外绝缘水平&对我国电网大面积污闪事故的反思
The basic measure to protect from large area pollutant flashover is to increase overall external insulation level for transmission and substation equipment. 防治电网大面积污闪的根本出路是提高输变电设备外绝缘的总体水平。