高铁接触网供电线上跨及T 接上网方式的优化研究

Optimization Research on Crossing and T-Connection Mode of Catenary Power Supply for High-speed Railway

通过对国内常见的高速铁路架空供电线上跨和T接上网方式进行了分析,对上跨及T接处典型故障案例进行了研究,深入分析了现行方式存在的电气腐蚀烧断、断线侵限等风险,提出了采用“同材双悬双承双引”方案,对供电线上跨和T接上网方式进行优化,全面提升了运行可靠性和安全性。采用“同材双悬双承双引”连接方式,取消了三角挂板,避免了电气腐蚀烧损线索;采用双承与间隔线夹方式,解决了断线侵限,避免了弓网故障。

The mode of crossing and T-connection of of high-speed railway catenary feeder line are analyzed,and the typical fault cases are studied in this paper.The risk of electric corrosion and wire break to limit invasion was analyzes,the scheme of“same material,double suspension,double bearing and double leading”is put forward for optimization,and the operation reliability and safety were im⁃proved in an all-round way.The connection mode of“same material,double suspension,double bearing and double leading”is adopt⁃ed,the triangle hanging plate is canceled,and the electric corrosion and burning clues are avoided.The method of double bearing and in⁃terval clamp is adopted to solve the problem of broken wire and limit invasion and avoid the fault of pantograph and catenary.