How to calculate the protection range of lightning tower?
What is the protection range of the lightning tower? It is necessary to know its protection scope when selecting its life span and reducing conditions. So how should its protection scope be calculated? In this article, we will introduce you.
The lightning protection tower can be towering in a vantage point in the air, leading the lightning to itself and receiving lightning strikes. And the lightning current is introduced into the earth, which has the effect of protecting nearby buildings or equipment shorter than it from lightning strikes.
The protection radius of the lightning tower is related to the height (h), D is the radius of the rolling ball (flash distance)
One kind of building is D=30 meters; one kind of building is D=45 meters; there is another kind of building D=60 meters.
Lightning tower
Calculation formula for selection of protection range:
Rx=½{h(2hr-h)}-½{hx(2hr-hx)}
In the meantime, Rx is the protection radius (m) of the lightning rod hx meters from the ground; hr is the radius of the rolling ball, which is 30, 45, 60 according to the type of building; hx is the height of the protected object.
Generally speaking, the higher the lightning tower, the larger the protection range and the better the protection effect. However, considering the safety and economy of lightning rod construction, most of them are built between 35 meters and 45 meters.
