隧道监控系统综合防雷设计与实践

为做好隧道监控系统的防雷工作，通过防直击雷、防雷电感应和雷电波侵入、等电位连接、屏蔽、合理布线等有效措施，形成层层保护结构，防止雷电侵入，确保监控机房设备、隧道视频终端设备及工作人员的安全。依据GB 50057-1994 2004《建筑物防雷设计规范》和GB 50343-2004《建筑物电子信息系统防雷技术规范》，根据监控系统的网络构架及监控系统防雷要求进行设计，指出防雷器选型应注意的问题，重点阐述隧道监控系统防雷设计方案的具体内容：摄像机防护、控制器防雷、监控中心设备的防雷等。1年多来，栾川长青公司隧道监控系统没有发生监控设备被雷击的事故，该方案可在类似工程中推广应用。

Design and Practice of Comprehensive Lightning Prevention of Tunnel Monitoring System

In order to prevent the tunnel monitoring system from lightning accidents and to ensure the safety of the equipment and the workers, effective technologies, such as direct shock lightning prevention technology, lightning reaction technology and lightning shock prevention technology, potential connection technology, shielding technology and rational wiring technology, are adopted. The key points in the selection of lightning prevention equipment are provided on basis of related standards and requirements. The details of the design of lightning prevention of tunnel monitoring system are presented. The practice shows that the design could be popularized in similar projects.