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變電所是電力系統中的主要環節,也是鑛山生產的心臟,如果一旦發生故障,輕則使設備受到損失,重則影響生產停止。因此對變電所的保護要特别注意,尤其是暴露在室外的機械和電氣設備,更须防護避免直擊雷的侵襲。而所謂直擊雷就是带電的雷雲直接对可做为放電對象的一切放電設備發生的放電現象。 過去,許多鑛山的變電所缺乏防雷保護裝置,1954年初認識到這一工作的重要意義後,大部分鑛山變電所大都裝設了大氣過電壓的保護装置,對變電所的安全起了很大作用,今將初步經驗介紹如下: 一、採用避雷針與避雷线的問題 目前東北有色金屬鑛山的變電所有的架設了避雷针,
Substation is the main part of the power system, but also the heart of mine production, in the event of failure, ranging from the loss of equipment, heavy production will stop affecting. Therefore, the protection of the substation should pay special attention, especially exposed to outdoor mechanical and electrical equipment, but also to be protected against direct lightning strikes. The so-called straight lightning is charged thundercloud can be directly discharged on all discharge equipment can be discharged phenomenon. In the past, many mine substations lacked lightning protection devices. After recognizing the significance of this work in early 1954, most mine substations installed atmospheric over-voltage protection devices. Safety has played a significant role, this preliminary experience will be introduced as follows: First, the use of lightning rod and lightning problem At present, the Northeast non-ferrous metal mining substations all set up a lightning rod,