A Lightning strike consists of opposite charges of electrical energy. Negative charges build up in the bottom part of the cloud closest to earth and positive charges build up directly underneath in the ground. Separating these two opposite charges is a non-conducting dry air belt. As the charges build up in intensity and the dry air belt becomes moist, lightning starts downward toward the earth in 150 foot jagged steps or intervals. The positive ground charge is attracted upward utilizing the lightning protection system as an outlet.
As the negative leader stroke from the cloud continues toward the earth, the positive ground charge travels up through the lightning protection system and when the negative leader stroke is about 150 feet above the top of the protected building, the positive ground charge starts upward to meet and neutralize the downward leader stroke.
The two opposite charges are neutralized emptying the negative charge from the cloud and dissipating the ground charge. This all occurs in about 1/5000th of a second and the home, occupants and possessions are safe from the devastating effects of lightning. Without protection, the positive charges would be trapped under and within the home, and the home could suffer a direct hit.
A Lightning strike consists of opposite charges of electrical energy. Negative charges build up in the bottom part of the cloud closest to earth and positive charges build up directly underneath in the ground. Separating these two opposite charges is a non-conducting dry air belt. As the charges build up in intensity and the dry air belt becomes moist, lightning starts downward toward the earth in 150 foot jagged steps or intervals. The positive ground charge is attracted upward utilizing the lightning protection system as an outlet.
As the negative leader stroke from the cloud continues toward the earth, the positive ground charge travels up through the lightning protection system and when the negative leader stroke is about 150 feet above the top of the protected building, the positive ground charge starts upward to meet and neutralize the downward leader stroke.
The two opposite charges are neutralized emptying the negative charge from the cloud and dissipating the ground charge. This all occurs in about 1/5000th of a second and the home, occupants and possessions are safe from the devastating effects of lightning. Without protection, the positive charges would be trapped under and within the home, and the home could suffer a direct hit.
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