In this paper, the working principle of C-ATS and the setting characteristics of its lightning protection were briefly introduced, the actual lightning protection effectiveness of the instrument over the years were summarized and analyzed, and the aspects need to be improved were pointed out.%文章扼要介绍了C-ATS地电仪工作原理及其防雷设置特点，总结分析了仪器运行多年来实际的防雷效果，并指出其有待完善的方面。
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