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高速公路的机电系统是一个功能强大的电器电子系统,极易遭受直雷击或雷电电磁脉冲的危害,轻者部分设备被击坏,系统丧失部分功能,重者使全部系统瘫痪,造成重大经济损失,给高速公路的安全运营带来极大隐患。目前,随着高速公路机电系统遭受雷击事件的增多,各业主已经越来越认识到防雷的重要性,一些产品厂商、设计单位也逐步提供、设计一套机电系统的防雷整体解决方案,国家也正在制定相关技术标准。文章旨在通过对雷击特点、防雷体系的分析,提出在高速公路机电系统设计中防雷设计应包含的内容和做法。
The electromechanical system of the expressway is a powerful electrical and electronic system, which is extremely vulnerable to direct lightning strike or lightning electromagnetic pulse. Some of the light equipment is destroyed and the system loses some functions. In severe cases, the entire system is paralyzed, resulting in serious economic losses , To the safe operation of the highway brings great hidden danger. At present, with the increasing number of lightning strikes on the highway electromechanical system, each owner has more and more realized the importance of lightning protection. Some product manufacturers and design institutes have also provided step by step to design an overall lightning protection solution for electromechanical systems. Countries are also developing relevant technical standards. The article aims to analyze the characteristics of lightning stroke and lightning protection system and put forward the content and practice of lightning protection design in the design of expressway electromechanical system.