防鸟挡板在110kV输电线路上防鸟害的应用研究

Application of Anti-Bird Baffle on 110 kV Transmission Line to Prevent Bird Hazard

防鸟挡板在输电线路防鸟中的应用越来越广泛,但存在安装后防护范围不足,安装方式不正确导致防鸟失败的案例时有发生。为了研究防鸟挡板安装后需满足防护范围的大小,建立了110 k V鸟粪闪络的有限元模型,对鸟粪闪络进行了仿真计算。结果表明:在考虑导线对鸟粪闪络的影响时,防鸟挡板的防护范围不应当是圆形,而应当是长方形,既防鸟挡板在沿线路方向的防护范围应当在均压环外侧35 cm,在沿横担方向的防护范围应当在均压环外侧25 cm。同时对防鸟挡板安装中应当注意的问题进行了分析,特别是针对防鸟挡板面积较大,冬季容易结冰柱的问题进行了分析,分析结果表明,防鸟挡板倾斜应当沿横担方向倾斜,而不应沿线路方向倾斜。

Bird baffle Application in Transmission Line bird is more and more widespread, but bird protection failure cases happened occasionally due to the presence of insufficient protective scope of the installation, as well as the wrong installation way. In order to study the required the range of protection after anti-bird baffle installed, a finite element model of the 110 kV guano flashover is established, and guano flashover is simulated. The results show that： when considering the effects of lead on the guano flashover, protection range of bird flap should not be round but rectangles, the protection scope of bird baffle in the direction along the line should be at 35 cm outside the grading ring, the protection scope in the direction along the cross arm should be at 25 cm outside the grading ring. While the problems during anti-bird baffle installation are and easy knotting icicle in winter. The results direction of cross arm, not the line. analyzed, particularly for the problems of large area show that the bird baffle should incline along the