10kV绝缘导线穿刺防雷击断线燃弧金具的研制

Development of the Punctured Arcing Hardware for Preventing Breakage of 10 kV Overhead Insulated Conductors Caused by Lightning

分析了10 kV架空绝缘导线遭雷击后断线的机理,结合线路检修接地保护的需要,研制开发了架空绝缘导线穿刺防雷击断线燃弧金具。这种金具集穿刺式雷击放电间隙和检修接地保护的功能,能有效地杜绝绝缘导线遭雷击后断线,又便于在线路检修中挂设检修接地线。介绍了燃弧金具结构、工作原理以及安装。经实践应用,效果良好。

The mechanism of breakage of 10 kV overhead insulated conductor is analyzed in this paper. A punctured arcing hardware with maintenance grounding function for preventing breakage of overhead insulated conductors caused by lightning is developed to comply with the requirement of line maintenance grotmding protection. The structure, working principle and in- stallation of the arcing hardware are also introduced, and the effect of practical application has been proved to be good.