铁矿配电、通讯系统防雷问题分析及解决

Analysis and Solution of Lightning Protection Problem of Power Distribution and Communication System in Iron Mine

矿山配电、通讯线路较长,多处杆塔、导线分布在荒芜山野地段,成为直击雷的主要接引器,易造成配电回路跳闸。经过现场调研和数据理论分析,有针对性地采取特殊点位增加防直击雷、提高绝缘裕度、改变中性点接地方式等多项技术措施,最终降低了雷击故障率。本研究对矿山配电、通讯系统防雷问题具有借鉴意义。

The distribution and communication lines of the mine are long,and many towers and wires are distributed in the barren mountain and wild areas,which become the main contactor of direct lightning strike,which is easy to cause the trip of the distribution circuit.Through on-site investigation and data theoretical analysis,a number of technical measures such as increasing direct lightning protection at special points,improving insulation margin,and changing the neutral point grounding method were adopted,and the lightning failure rate was finally reduced.This study has reference significance for mine power distribution and communication system lightning protection.