In recent years, during transmission line construction, non-powercut spanning methods were widely used while spanning high voltage power lines. 摘要在近年來的輸電線路施工中，不停電跨越高壓電力線方案得到了越來越廣泛的採用。
There are many methods to measure the circular curved line in circuitry construction survey.Angle offset method and tangent offset method are usually used. 摘要在線路施工測量中，圓曲線測設方法有很多，通常採用偏角法或切線支距法。
