低风压架空导线的设计与试验验证

Design and Test Verification of Low Wind-Pressure Overhead Conductor

针对凹弧式低风压导线,通过外层单线凹弧深度来改变导线的风阻系数。通过设计不同凹弧深度模型导线进行风洞试验,获得最佳风阻系数的导线结构参数,并以此制作真实导线进行风阻系数验证。以JL/G1A-630/45同直径的凹弧式低风压导线为例,获得了满足低风压导线风阻系数要求的凹弧深度,真实导线的风洞试验结果与模型导线一致。

The drag coefficient of the concave type low wind-pressure conductor is changed by the depth of concave of outer single wire in this study. The wind tunnel test was carried out by designing model conductor with different concave depths to obtain the conductor structure parameters of the optimal drag coefficient, and then the real conductor was produced to verify the drag coefficient. Taking low wind-pressure conductor with the same diameter of JL/G1 A-630/45 as an example, the concave depth that meets the requirement of the drag coefficient of the low wind-pressure conductor was obtained. The wind tunnel test results of the model conductor are consistent with the real conductor.