特殊地形电力架空线的导线计算

Calculation of Conducting Wire of Overhead Power Line Located in Area with Special Landform

电力架空线路是一项经常遇到的设计内容。当架空线路经过地形复杂的山区布线时,往往在悬挂导线的杆塔之间出现大高差或孤立档。用常规的平抛物线法计算导线的应力弧垂等参数的结果,与实际数值相差较大,这时需采用斜抛物线法来计算,本文对斜抛物线法的计算进行了探讨。

Overhead power line is one of design items commonly meeting with. In case of overhead line going through a mountain area with complex landform, a big height difference or an independent span often occur between pole towers. The values of parameters like stress and sag, etc, of conducting wire calculated in conventional horizontal parabola method is quite different from the actual values. In this case oblique parabola method should be used for calculation, This paper has a discussion on the calculation in oblique parabola method,