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How deep does the lightning rod installation need to dig

27-07-2020

In normal times, when it rains, there will be thunder and lightning, especially when thunderstorms and thunder are particularly loud. Then, for some people who pay more attention to this aspect, they will install a lightning rod at home. In this case , Even if there is a thundering situation, copper bonded there is no need to worry about knocking down the house at home. Then, we need to know how deep the lightning rod installation needs to be. In addition, we must look at the introduction of the lightning rod.

How deep does the lightning rod installation need to dig

The spacing of the vertical grounding body should not be less than 3 to 5 times its length. The spacing of the horizontal grounding body should meet the design regulations. When there is no design requirement, it should not be less than 5m. Except for the ring grounding body, the buried position of the grounding body should be 3m away from the building. The distance from the building entrance or sidewalk should also be greater than 3m. If it is less than 3m, a pressure equalizing belt should be adopted or a 50-90mm thick asphalt layer should be laid on the grounding device, and its width should exceed the grounding device by 2m.

1. Installing a lightning rod is an effective way to avoid lightning strikes. A metal rod is erected at the highest point of the house, the lower end of the rod is connected to a thick copper wire, and the lower end of the copper wire is connected to a metal plate to be buried deep underground in a humid place. The upper end of the metal rod must be a pointed or branched into several pointed ends. With such a device, when there is a charged cloud in the sky.

2. Due to electrostatic induction, the tip of the lightning rod concentrates the different kinds of charges, and the tip discharge occurs, which neutralizes the electricity in the cloud to avoid intense lightning. This is one aspect of lightning protection. But this effect is quite slow. If the accumulation of electricity in the cloud is very fast, or a cloud with a large amount of electric charge suddenly comes, sometimes it is too late to neutralize it in the above-mentioned way, so there is a strong discharge, and lightning will still occur.