正文：变电站二次系统防雷装置改造初探 关键词】变电站；二次系统；防雷装置；改造；初探 [gap=514]Key words: substation；the Secondary system；Lightning protection device；Reform；Pre-test
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This article discusses some issues unsolved about lightning protection grounding device of PHC piles and provides some correction Suggestions based on the construction experience.
本文对PHC桩基础防雷接地装置施工中存在的若干问题及其改进方法进行探讨，并结合工程实际经验提出了建议意见。
Through over voltage on-line monitoring device testing, inquire into lightning protection of the reactor with air core.
并通过安装过电压在线监测装置进行测试的方法，初步探讨了空心电抗器防雷的作用。
Directing towards lightning protection, issues for grounding device design and installation that should be noticed are discussed.
本文主要分析了电气系统的接地方法，接地装置的检查和维护，安全接地以及有关的注意事项等。
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