铁路站房法拉第笼屏蔽网防雷技术研究

Research on Lightning Protection Technology Faraday Cage Shielding Network for Railway Station Building

随着现代化科学技术的飞速发展,铁路信号电子化设备的应用大幅提高,先进的设备在雷雨季节能否安全稳定地运行,是目前需要研究的一个新课题。宝兰高速铁路设计时速250 km/h,为保证高速铁路列车信息传递精准,其四电设备用房需具有良好的屏蔽信号干扰和综合防雷能力,因此在站房设计中采用了法拉第笼。本文分析了法拉第笼的防雷作用,利用现代雷电防护理论,采用合理的防护技术,对信号设备进行系统的防雷保护,减少了雷电影响,延长了设备使用寿命,提高了设备可靠性。文章还介绍了法拉第笼的施工工艺,总结了施工控制要点,以期为类似工程提供经验借鉴。

With the rapid development of modem science and technology, application of electronic equipment is increased greatly in the railway signal. Whether the advanced equipment can work safely and stably in the thunderstorm season or not is a new subject to be researched. The design speed of BaoLan high-speed railway is 250 km/h. In order to ensure the precision of high-speed trains information transmission, its electrical equipment room shall have good signal interference shielding and integrated lightning protection functions, therefore, Faraday cage is adopted in the station building design. In the paper, the lightning protection principle of Faraday cage is analyzed, that is to use modem lightning protection theory and reasonable protection technology to protect the signal equipment, reduce the lightning influence, prolong the service life of equipment and improve equipment reliability, and Faraday cage construction technology are introduced and the control points of the construction are summarized for similar projects for reference.