绝缘子串发生覆冰桥接闪络是影响架空输电线路安全运行的主要因素之一。根据不带电绝缘子串及同期导线覆冰的观测数据，分析了玻璃、陶瓷及复合绝缘子串的覆冰质量与导线覆冰质量的关系，研究了绝缘子串发生桥接与导线标准冰厚的关系。

The bridged icing flashover accident of insulator strings is one of the major factors which affect the safe operation of overhead transmission line. The electrically neutral insulator strings and wire icing data over the same period were used in this paper to comparatively analysis the icing weight among different types of insulator which included glass, ceramic, complex insulators, and their relationships with wire icing weight. Meanwhile the relationship between insulator strings bridging connection and standard thickness of wire icing was discussed.