中继台系统在超高压输电线路运行检修中的应用

超高压输电线路的运行和检修过程中，信息通信相当重要，但是目前尚无较为经济的解决大范围无线通信的有效途径，特别是山区的无线通信。以途经地理条件恶劣的大别山区和皖南山区的±500 kV龙政和±500 kV宜华2 条输电线路为例，提出了解决山区通信问题的技术措施。在普通的中继台系统上进行了拓展，利用链路台系统将安装在超高压输电线路铁塔上的各个中继台进行链接，使中继台信号沿整条输电线路覆盖，在信号覆盖范围内的手持对讲机之间可以相互进行信息通信。此措施较为经济，解决了山区通信不畅的问题，同时扩大了手持对讲机的通信范围。

Application of Relay Station System in Operation and Maintenance of Extra High Voltage Power Transmission Lines

Communication systems are of great importance to operation and maintenance of extra high voltage power transmission lines.So far there is not an effective and economical method to solve the problem of wireless communication in large areas especially in mountain areas.Taking the examples of ±500 kV Longzhen and ±500 kV Yihua projects passing Dabie mountain and Wannan mountain with bad geographical conditions,a technical method was proposed to deal with the communication problems in mountain areas.The relay stations built in extra high voltage transmission line towers were linked by link systems;and the relay station signal covered the transmission lines area,where people can communicate with each other through interphones.The proposed method economically solves the problem of communication in mountain areas and enlarges the communication range of interphones.