Traditional Culture Encyclopedia - Photography and portraiture - How do people who live in high-rise buildings install lightning rods?
How do people who live in high-rise buildings install lightning rods?
The protection range of lightning rod usually refers to the space that can be maintained by direct lightning. As long as the lightning rod is always protruding within its maintenance range, the building can be protected from direct lightning. The maintenance scale of lightning rod depends on the height and shape of the building, especially the height of lightning rod itself or the total height of the building where lightning rod is installed. Generally speaking, the higher the lightning rod is installed, or the higher the lightning rod itself, the greater the maintenance scale.
The protection range of lightning rod is often determined by calculation. In short, the protection range of a single lightning rod is 45 degrees, and the protection radius of the ground is equal to 1.5 times the needle height.
When the grounding resistance of lightning rod is too high or the grounding conductor is mechanically damaged or corroded. When the telephone line and electric light line of high-rise residence are installed at intervals and the lightning rod and its grounding conductor are too close. When TV antenna towers, billboards and flagpoles are higher than lightning rods and there is no independent lightning protection grounding system. When watching TV or opening the window to enjoy the rain scene in thunderstorm weather. When working on the roof in thunderstorm weather.
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