冬季,在电力线路上,常常出現积冰和积雪現象,这叫做复冰。复冰是电力綫路的一个比較难对付的問題。电綫由于承受不了复冰的重量而发生断綫事故,这并不罕見。人們为了防止电力线路的这种严重故障,曾想了不少的办法。首先是预防。怎样預防呢?在架設输电綫路以前,設計工作人員需要仔細繪制成冰地区的地图,使线路尽量避开最危險的成冰区域。在綫路架設以后,沿线地区設置若干个人 In winter, ice accumulation and snow accumulation often occur on electric power lines. This is called compound ice. Complex ice is a more difficult problem for power lines. It is not uncommon for wires to break due to the weight of the ice. In order to prevent such serious failure of power lines, people have thought of many ways. The first is prevention. How to prevent it? Prior to erecting transmission lines, design staff needed to draw maps of ice-forming areas carefully so that the routes avoided the most dangerous ice-forming areas. After setting up the line, several individuals are set up along the line