What are the precautions for installing the lightning rod?
In the selection of independent lightning location, should make the lightning and grounding device of power distribution apparatus and maintain the following provisions: the distance on the ground by the independent lightning rod to the conductive parts of power distribution equipment and substation electrical equipment and structure part of the space between the distance should not be less than 6m in the underground, connected by ground lightning rod device and substation grounding grid itself in the distance between the nearest is generally not less than 3m.
The grounding resistance of an isolated lightning rod shall not exceed 10 ohms
The metal barrel body is provided with a lightning rod (chimney), when the thickness is more than 4mm, can be used as the lead line lightning arrester, the bottom of the barrel should be symmetrical two connected with the grounding.
In order to prevent lightning strike lightning rod, the lightning wave is introduced into the room from the wire and endanger personal safety, so no voltage line or communication line can be erected on the lightning rod frame. The lighting power line on the frame equipped with lightning rod must adopt the cable with metal protective layer buried directly in the ground or the wire through the metal tube. The cable protection layer or metal pipe must be grounded, and the buried length is more than 10m, so it can be connected with the grounding grid of the distribution device. The goods are connected with the power line and the low-voltage distribution device.
