摘要
在绝缘导线应用于配电线路的建设中,10 kV架空线路雷击断线事故是影响安全供电的大问题。通过分析架空绝缘导线雷击断线的机理,介绍安装线路型金属氧化物避雷器可有效限制雷电过电压对配电线路的危害,减少绝缘导线配电线路的雷击断线事故,保证配电线路的安全运行,指出安装线路型避雷器这一防雷技术存在的问题,并分析了线路型避雷器的安装密度和保护效果。
The lightning-caused breaking failures on 10kV overhead lines have serious impact on the safety of power supply in the construction of applying insulated conductors on power distribution lines. By analyzing the lightning-caused breaking mechanism of insulated conductors, this paper introduces installing metal oxide transmission line arresters which can prevent power distribution lines effectively arising damages from lightning over voltages. And it can limit the lightning-caused breaking failures of insulated conductors occurring to ensure the safe operation of insulated distribution lines. At the same time, the possible problems of lightning protective technology of installing transmission line arresters on power distribution lines are indicated, and the installing density and protective effect of transmission line arresters are analyzed, too.
出处
《中国电力》
CSCD
北大核心
2003年第z1期39-42,共4页
Electric Power
关键词
防雷保护
配电网
绝缘导线
雷击断线
lightning protection
power distribution network
insulated conductor
lightning-caused breaking
