The influence of the pole under the unbalanced tension was analyzed based on the model of electric pole and then designed the device for abandoning lines to protect electric poles from overload in distribution lines.When the load exceeded the design value in the device,the electric lines would fall down from the poles to protect it.Mter establishing the experiment of the device under overload,it had shown the feasibility of the device in action,also,by designing the weak parts of the device,it would get the different tension along the lines for the lines to separate from the poles.Finally,different levels poles would be adapted.%从电杆受力模型出发,分析顺线不平衡张力对电杆受力的影响.设计一种用于超载情况下的弃线保杆装置,当作用在该装置上的载荷超过设计载荷时,装置发生动作使得电杆与电线发生分离从而保护电杆.建立了弃线保杆装置受力后动作过程的实验,实验结果说明装置发生动作的可行性.通过设计薄弱零件的尺寸,可以得到不同的电线与电杆脱离所需的沿线张力,适应不同等级电杆的保护要求.
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