监控、紧急电话工程的防雷和接地

The lightning proof and grounding of monitoring and emergency telephone system

根据高速公路监控、紧急电话系统雷害调查的情况，分析了该设备雷害产生的原因，结合地处山区防雷接地的现状，应用电磁防护原理和通信防雷技术，提出了高速公路监控、紧急电话系统防雷的综合措施．

According to the lightning stroke investigation on monitoring emergency telephone system on expressway, the author analyzed its reason and proposed corresponding synthesis treatment with the situation of lightning proof and grounding in mountainous area by applying the electromagnetic defense principle and communication techniques.