摘要
由于在高速公路设计和施工中强电和弱电系统的防雷问题往往被忽视 ,接地的要求也不统一。高速公路尤其是机电系统的防雷薄弱环节相对较多 ,因此易遭雷击 ,特别是雷击电磁脉冲的危害。本文分析了雷电对高速公路机电设备危害途径 ,阐述了高速公路雷电防御技术应包括直击雷、雷击磁脉冲 (雷电感应 )
Problems of lightning protection of heavy and weak currents of operated devices tend to be negligible in designing and building a highway and no standardized requirements are available for cable grounding. Thus, weak links are relatively numerous as to lightning protection of electromechanical systems, especially the information system that is subject to lightning stroke whose electromagnetic pulses are extremely dangerous. This paper concerns the ways thunder stroke may damage the electromechanical system on a highway and suggests that a 3D defense structure be established, covering direct stroke and impact of electromagnetic pulses from induction.
出处
《气象科学》
CSCD
北大核心
2003年第3期365-371,共7页
Journal of the Meteorological Sciences
基金
国家自然科学基金资且 编号 :4 0 2 75 0 10
关键词
高速公路
机电系统
雷电防御
Highway Electromechanical system Lightning protection
