How To Do A Good Job in Lightning Protection For Container Houses?

The lightning protection of container activity houses mainly includes external lightning protection systems and internal lightning protection systems. Metal roof lightning protection belongs to the external lightning protection system, and the traditional lightning protection mode of buildings is the combination of traditional lightning rods or lightning rods in the lightning protection network.
However, the metal plates of color steel roof panels are relatively thin, making it impossible to install tall and heavy traditional lightning rods. Therefore, when designing metal roof buildings, it is necessary to consider how to prevent roof lightning strikes based on the five elements of lightning protection design.
1. The function of lightning arresters for lightning protection devices inside and outside buildings
The lightning arrester installed in the activity house can use lightning rods, lightning strips, or lightning protection nets according to the actual situation. The selected lightning arrester should have specific current and voltage resistance, continuous lightning arrester effect, and aesthetic unity between the lightning arrester and the building.
2. The diversion effect of the down conductor
The thickness and number of down conductors directly affect the diversion effect. If there are many down conductors, the lightning current passing through each one is very small, and the induction range is also very small.
The distance between the down conductors should not be less than the specifications. When the building is very high and the down conductor is very long, an equalizing ring should be added in the middle of the building to reduce the inductive voltage drop of the down conductor.
3. Potential balance of various parts in the activity room
To meet the requirements of lightning protection devices, lightning protection devices should be welded, tied or overlapped with beams, plates, columns, and foundations. Various metal equipment and pipes should be welded or clamped together simultaneously, making the entire movable house a good equipotential body.
4. Grounding effect
A good grounding effect is one of the important guarantees for successful lightning protection. The lightning protection grounding setting of container activity rooms should meet the design and specification requirements, and the grounding resistance test should be qualified.
When using an independent grounding method, the effect of drilling deep buried grounding levels (about 4-12m) is good, and deep hole grounding levels can easily reach the groundwater level, reducing the amount of steel used for grounding levels.
5. Effective wiring
In the lightning protection design of container activity rooms, it is necessary to consider the correlation between the lightning protection system and this type of pipeline. In order to ensure that this type of pipeline is not harmed during lightning protection facilities, the first step is to thread this type of cable into a metal hose to maintain reliable shielding.
Then, the main trunk line of this route is set vertically at the management center position of high-rise residential buildings, and it is prevented from approaching as an exit column reinforcement to minimize the range of magnetic induction as much as possible.