架空电力线路(简称架空线),是指由杆塔、导线及拉线、接地装置等辅助设施组成的输电线路,是电网的重要组成部分,承担着输送电能的功能。而架空线建设是指新建、改建或扩建线路的活动。限于目前的技术和经济原因,输电线路还不能全部埋设地下,在相当大的区域还必须采用架空线的形式。而 Overhead power lines (referred to as overhead lines), refers to the tower, wires and cables, grounding devices and other auxiliary facilities composed of transmission lines, is an important part of the power grid, assume the function of conveying power. The overhead line construction refers to the new construction, reconstruction or expansion line activities. Due to the current technical and economic reasons, the transmission lines can not yet be fully laid underground. In a relatively large area, overhead lines must also be used. and