通过对山区送电线路雷害事故的分析，得出了山区雷害主要是雷击杆塔或避雷线造成的反击事故。
At summarizing lightning accidents of transmission lines in mountainous areas it was concluded that the lightning accidents were mainly caused by inverse flashover of lightning strike on tower.
架空输送电线路因覆冰而导致的事故危害性很大，本文总结了目前国内外输电线路导线覆冰的现状。
Icing will bring a lot of disserve to impracticable power transmission line, here is summary about icing phenomenon on power transmission line around the world recently.
中压电网不断扩大的同时，系统的单相接地电流也快速增加，发生故障时送电线路和变电站事故较多。
With expanding constantly on MV network, the current of the one-phase grounding increases constantly too, when one-phase grounding fault happens, there are more accidents in the lines and substations.
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