500 kV马百线防雷实践

Practice of Lightning Protection in 500kV Mabai Line

为降低500 k V马百线跳闸率,提高线路及串补可用率,统计分析了500 k V马百线雷击跳闸情况,采取了安装避雷器和大面积安装横向避雷针的防雷措施,通过对比采取措施前后共14年的跳闸率,所得的结果表明,安装避雷器和大面积安装横向避雷针能够显著降低雷击跳闸率。从防雷效果、投资、维护综合考虑,横向避雷针是一种值得推广的防雷措施。

In order to reduce the lightning outage rate of 500kV Mabai line and increase the availability of line and series compensation, the lightning outage situation of 500kV Mabai line is analyzed statistically. The lightning protection measures of installing arresters and installing transverse lightning rods in large area are adopted. By comparing the tripping rate of 14 years before and after taking measures, the results show that installing arresters and installing transverse lightning rods in large area can significantly reduce the lightning outage rate. Considering the lightning protection effect, investment and maintenance, the transverse lightning rod is a kind of lightning protection measure worth popularizing.