附加导线架空跨越接触网方案研究

Research on the Scheme of Overhead Crossing the Catenary of Additional Wire

近年来发生了多起上跨接触网的附加导线断线故障,论文旨在探讨附加导线架空跨越接触网的方案。通过比较各方案的优劣,并结合某工程实际情况研究推荐附加导线(正馈线、保护线)架空跨越接触网可采用"单线单联单挂点(加固形式)"方案。对既有电气化铁路存在附加导线架空跨越接触网情况提出建议,建议采用"双线双联双挂点"方案,双线互为保护,提高附加导线机械可靠性。

In recent years,there have been many additional wire breakage faults on the catenary,and this article aims to explore the scheme of the additional wire overhead crossing the catenary.By comparing the advantages and disadvantages of each scheme,and combining with the actual situation of a project,it is recommended that the additional conductor(positive feeder,protection line)overhead crossing the catenary can adopt the"single line,single link,single hanging point(reinforcement form)"scheme.Suggestions are made for the presence of additional conductor overhead crossing the catenary on existing electrified railways.It is recommended to use the"two-line double-link double-hanging point"scheme,where the two lines are mutually protected to improve the mechanical reliability of the additional lines.