The lightning protection device used in the gas station generally consists of a lightning rod, a down conductor and a grounding device. Lightning rods are also known as lightning receptors. It uses its protruding position above the protected object to direct the lightning to itself, and then draws the lightning current into the earth through the down conductor and the grounding device to protect the personnel or buildings from lightning strikes. Lightning rods are mainly used to prevent direct lightning strikes.
Lightning protection devices using lightning rods as lightning receptors are mainly used to protect industrial and civil high-rise buildings, power plants and outdoor power distribution units, as well as oil fuel banks and gas stations.
When the thundercloud is approaching, during the extension of the lightning pilot circuit to the ground, due to the electric field of the lightning rod distortion, the lightning will gradually turn and hit the lightning rod to form a tip discharge, and at the same time introduce lightning current into the earth, thus avoiding lightning damage. The possibility of protecting equipment and buildings. Thus, a safe area is formed below a certain height of the lightning rod, and objects in this safe area are substantially free from lightning strikes. The protection range of a single lightning rod is a polygonal cone with the lightning rod as the axis. The height of the lightning rod is related to the scope of protection.
It should be understood that buildings and structures within the scope of protection are not absolutely guaranteed to be protected from lightning strikes. This is because the lightning discharge path is affected by many factors, and it is not easy to ensure that the protected object is absolutely not struck by lightning. Generally, only the probability of being hit within the protection range is less than 0.1%.
At present, most gas station stations and sheds use lightning protection. The principle is the same, and it is also economical and reliable.
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