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我公司勘探地区均在祖国南方,这些地方雨季很长,雷电活动强烈,往往出现雷击事故.以前我们在机场采用的避雷方法,就是安装避雷针(图1),收到过一些效果.但有的由于接地电阻达不到规程规定(高达数百欧姆)而未能起到避雷作用.
My company’s exploration areas are all in the southern part of the motherland. These areas have a long rainy season and strong thunder and lightning activities. There are often lightning strikes. The lightning protection method we used at the airport was to install lightning rods (Figure 1) and received some results. However, some Because the grounding resistance failed to reach the regulations (up to hundreds of ohms), it failed to provide lightning protection.