根据输电线路荷载的特性，分析了我国与国际现行输电线路规范的区别，并结合实例对主要工况的张力计算进行了比较。结果表明，GB 50545—2010将张力作为独立变量进行取值和荷载组合，导致节点荷载值比其他规范计算结果偏大，地线张力增大幅度为16%~26%，导线张力增大幅度为12%~16%。

According to the load characteristics of transmission line, this paper analyzed the current transmission-line codes between domestic and overseas, compared the tension calculation under main working conditions combined with examples. The results indicate that the tension loads derived from GB 50545—2010, which are treated as independent variables in calculation and loads combination, are larger than others derived from the other codes: the earth wire tension increases by 16%~26% and the conductors tension increases by 12%~16%.