架空输电线路在重冰区运行的分析及防冰措施

Analysis of overhead transmission line in heavy icing area and Anti - icing measures

严重覆冰引起过荷载、不均匀覆冰或不同期脱冰引起张力差、绝缘子串覆冰闪络及覆冰导线舞动是造成覆冰事故的主要原因。考虑两个及以上的气象区，从运行维护和设计上提出了防治冰害事故的措施。

Overload caused by severe icing, tension difference caused by uneven icing or nonsynchronous ice - shedding, insulator strings flashover of ice - coated, and iced conductor galloping. Based on two or more meteorological region, this thesis puts forward the anti - icing measures of the transmission lines from the operating maintenance and design.