500kV长万线工程不停电跨越施工实践

新建输电线路在架线施工中需要跨越运行的高压输电线路，随着电网的日益发展，这种跨越施工越来越频繁，为了减少输电线路架线施工时对电网造成的停电损失和确保新建线路架线施工的安全，不停电跨越架线施工技术应用越来越广泛。文章对长江三峡第１条送出工程５００ｋＶ长万线工程（第１标段）的不停电跨越施工进行了介绍和总结，并对１０ｋＶ和３５ｋＶ配电线路的几种不同地形的不停电跨越施工方案提出了新的施工建议。

The span construction of 500kV transmission line across service line

Power transmission line in construction may often be needed to span across the line in service ,To reduce electrical loss during line construction a construction technology with servicing line is applied widely and widely.The paper gives an introduction to the construction practice of the 500kV Chang-Wan Line that span across a servicing line ,and gives some useful suggestions for construction scheme of 10kV and 35kV distribution line in different terrain .