How to do a good job of lightning protection in the container mobile house?

How to do the lightning protection work for the container mobile house?

Prefabricated houses have the advantages of strong environmental adaptability, fast installation speed, long service life, thermal insulation and so on. It is widely used in temporary buildings for field operations such as roads, railways and buildings. With the continuous improvement of people's safety awareness, the lightning protection problem of container prefabricated houses in steel structure engineering has also become the main concern of customers. It is very important to install lightning protection devices. necessary. So, how to do lightning protection work for the container mobile house? Let's learn about it with the container house editor!

How to do the lightning protection work for the container mobile house?

The lightning protection of container mobile houses mainly includes external lightning protection system and internal lightning protection system. Metal roof lightning protection belongs to external lightning protection system. The lightning protection mode of traditional buildings is Franklin's traditional lightning rod, or lightning rod combined with lightning protection network.

However, the metal plate of the color steel roof panel is relatively thin, so it is impossible to install a tall and heavy traditional lightning rod. Therefore, when designing a metal roof building, you should consider how to prevent the roof from lightning strikes according to the five elements of lightning protection design.

1. Air-termination function of lightning protection devices inside and outside buildings

For the air-termination device installed in the mobile home, the air-termination device such as lightning rod, lightning-protection belt or lightning protection net can be used according to the actual situation. And the aesthetic unity between the air-termination and the building.

2. The shunt effect of the descending conductor

The thickness and number of down-conductors directly affect the shunt effect. If there are many down-conductors, the lightning current passing through each down-conductor is very small, and the induction range is also very small.

The distance between the down-conductors should not be less than that specified in the specification. When the building is very high and the down-conductor is very long, a voltage 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 each part of the activity room

In order to meet the requirements of lightning protection devices, lightning protection devices should be reliably welded, bound or lapped with beams, plates, columns and foundations, and various metal equipment and metal pipes should be welded or clamped together at the same time, which makes the whole mobile house a A good equipotential body.

4. Grounding effect

A good grounding effect is one of the important guarantees for the success of lightning protection. The lightning protection grounding settings of the container mobile house should meet the design and specification requirements, and the grounding resistance test is qualified.

When the independent grounding method is adopted, the best effect is to drill deeply buried grounding electrodes (about 4 ~ 12m). The deep-hole grounding electrodes can easily reach the groundwater level and reduce the steel consumption of the grounding electrodes.

5. Effective wiring

In the lightning protection design of the container prefab, it is necessary to consider the relationship between the lightning protection system and the pipeline. In order to ensure that the pipeline is not harmed when the lightning protection facility is connected to lightning, the cable should first be passed through the metal soft inside the tube to keep it reliably shielded.

Then, the vertical part of the main line of this route is set at the management center of the high-rise residential building, and it is prevented from approaching the column reinforcement as a lead and exit, so as to minimize the range of magnetic induction.

The above is the whole content of 'How to do a good job of lightning protection for container prefabricated houses?', if you still have questions about container houses and residential container houses, please consult the online customer service of container houses, or call directly for consultation!

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