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Lightning strike Thunder and lightning equipment

Direct lightning is a strong discharge between the charged cumulus cloud and the ground target when it approaches the ground to a certain extent.Direct lightning strikes generally have two forms: direct lightning strikes and indirect lightning strikes.Direct lightning strike (including direct thunder and lightning strike, thunder and lightning side strike): In the lightning activity area, lightning strikes directly through the human body, buildings, equipment, etc. to the ground.Indirect lightning strike: It is mainly the electromagnetic field effect of the direct lightning radiation pulse and the lightning current conducted through the conductor, such as lightning wave intrusion, lightning counterattack and other forms of lightning strikes that invade buildings, causing damage to buildings, equipment, or personal injury.Lightning wave intrusion means that when a lightning strike occurs, the lightning directly hits the overhead or shallow buried metal pipes and cables, and the powerful lightning current enters the room along these pipelines.Lightning counterattack means that when a direct lightning protection device (such as a lightning rod) guides a strong lightning current into the earth, its down conductor, grounding body and the metal conductors connected to them will generate a very high voltage, which will affect the surrounding and their There is a huge potential difference between nearby metal objects, equipment, circuits, and human bodies that are not connected to them. This potential difference can cause flashover.