Lightning arrester design and lightning arrester protection range, Surge arrester lightning protecti ...

Lightning arrester design and lightning arrester protection range, Surge arrester lightning protecti ...

Lightning is one of the beautiful and attractive phenomena, but at the same time destructive and harmful. Due to the power that this phenomenon has, it certainly causes many damages and losses to nature and human artefacts, both financially and externally. Therefore, it is important to know this phenomenon and the methods to deal with it and prevent its effects.

Why should a lightning rod be installed?

The destructive effects of lightning are either caused by a direct impact of lightning or by the induced voltages of its electromagnetic fields, and electric shocks caused by lightning lead to the following effects:

- Harming human resources

- Damage to electrical and communication equipment

- Creating errors in the data and information sent

- Failure and stoppage of devices

Therefore, firstly, it is necessary to prevent the risk of lightning striking the building and facilities, which can lead to metal destruction, fire, and human casualties, and secondly, to protect the electrical and telecommunication devices and equipment inside the building against these risks. . A lightning rod is used to protect the building, which is called primary protection, and an arrester is used to protect the electrical equipment inside the building, and this type of protection is called secondary protection.

Therefore, the lightning protection system includes primary protection (lightning arrester) and secondary protection (arrestor), which complement each other. Obviously, both the lightning arrester and the arrester need an earthing system.

Primary protection:

In order to protect structures against lightning, lightning currents must be prevented from penetrating inside the building. This work is done by the lightning arrester system which includes: lightning arrester, middle conductor and earthing. If this system is used on top of the building, the lightning strikes the lightning rod and its current is transferred to the ground through the middle conductor. In this way, the lightning arrester system prevents factors such as: metal destruction, fire, and human vulnerability.

Secondary protection:

In addition to the risks mentioned above, a direct lightning strike causes electric shocks in the transmission lines. Due to the growing use of electronic equipment in daily life, its importance is increasing. Therefore, to protect these systems and control shocks, overvoltage protectors, i.e. lightning arresters, according to IEC 61643 and IEC 61024 standards should be used.

Evaluating the probability of a lightning strike:

The probability of lightning hitting a building depends on the size of the building and the intensity of the lightning.


According to NFC17-102 and IEC 61024-1-1 standards, it is obtained





This company uses experienced forces and using international standards such as IEC 61024 - IEC61312-1,2,3,4 - VDE 0675, VDE0185 and after accurate calculations on soil resistance, the amount of equipment needed to implement the system Earth in the main and secondary ring parts, rod and well