We all know that metal is easy to conduct electricity, especially in the season of frequent thunderstorms, everyone should be careful, so will the post box we place outdoors attract lightning? Of course it will, but don’t worry, we teach you how to make the post box to prevent lightning strikes.
As a place to shelter from the wind and rain, the stainless steel sentry box is also a time when lightning is prone to occur during the rainstorm season. How to protect the stainless steel sentry box from lightning has also become an unavoidable topic. Then the principle of lightning protection is to lead the lightning to itself through the lightning device higher than the building, such as the lightning receptor, and then to the ground through the down-conductor and grounding equipment. According to the structural characteristics of the stainless steel sentry box itself, as long as the lightning rod is selected, it can escort the guards on duty in the thunderstorm season. The lightning rod can make the box achieve a very good lightning protection effect. We think that 1 ohm or less, even if it is within the safe value.
Then, according to the height of the stainless steel box, you can choose to use 12 mm round steel or 20 mm steel pipe. In the selection of down conductors, you should choose flat steel with a diameter greater than 8 mm or a section greater than 48 mm, and a thickness of more than 4 mm. . On the grounding equipment, choose more corners, steel pipes or rounded corners. If it is in an environment with high acidity, anti-corrosion measures such as hot-dip galvanizing should be selected, or the cross-section should be increased, which can ensure the grounding equipment, and can play a significant role in the lightning protection of stainless steel sentry boxes.