The author analyzes and compares three commonly used non-powercut spanning methods, and among them, recommends nsulatecl rope bridge method and comments on its safety, economy and conveniency.

• 本文对施工中较常用的三种不停电跨越方案进行了分析比较，推荐其中的绝缘索桥方式，并对其安全、经济、快捷的特点作了简要介绍。