高速铁路接触网PW线技术方案优化研究

Study on Optimization of PW-wire Technology Scheme for High-speed Railway Catenary

通过对接触网运行实践的总结,介绍高速铁路接触网PW线安装形式存在的隐患,分析PW线线夹烧损、PW线断线的成因,指出PW线线夹电气当量不足、上跨接触网的弊端,提出PW线架空改电缆、采取绝缘安装方式、补强PW线连接点等多种整治方案,对不同供电方式接触网设计、施工、运营具有普遍指导意义。

Based on the summary of the operation practice of the catenary,this paper introduces the hidden dangers of the installation form of the PW-wire of the high-speed railway catenary,analyzes the causes of the burn loss of the PW-wire and the breakage of the PW-wire,and points out that the PW-wire clip has insufficient electrical equivalent and the drawbacks of the catenary.A variety of rectifying schemes,such as overhead modification of PW-wire cables,insulation installation methods,and reinforcement of PW-wire connections are proposed,which have general guiding significance for the design,construction,and operation of the catenary in later work.