How many kinds of lightning are there? What kind of thunder is there?

Lightning, which we usually call lightning, can be divided into intra-cloud lightning, inter-cloud lightning and cloud-to-ground lightning. The former is very harmful to aircraft, while the latter is very harmful to buildings, electronic and electrical equipment, people and livestock.

Lightning current always chooses the shortest and most conductive path to discharge to the earth. In areas with many conductive particles in the air, towering objects on the ground and low resistivity between the ground and the underground, lightning is easy to fall.

Direct lightning, lightning wave intrusion and induced lightning strike. Direct lightning refers to lightning directly hitting buildings, trees, the earth, lightning protection devices or human bodies. Direct lightning is accompanied by sound and light, which is aggressive and well known to all ages. Lightning wave intrusion refers to the action of lightning on overhead lines and metal pipelines, which may invade houses along these pipelines, endanger personal safety or damage equipment; However, induced lightning occurs quietly and the consequences are serious. Direct lightning strike is different from inductive lightning strike. Direct lightning mainly damages buildings and power lines on the discharge path, causing human and animal deaths, while inductive lightning mainly damages electronic equipment. Recently, nearly 100 cases of computer users and televisions being struck by lightning in our oilfield were all caused by inductive lightning and the invasion of lightning waves. Experts remind that induction lightning is on the rise and 80% of lightning accidents are caused by it. But at present, people have a poor understanding of this hidden lightning disaster, and many people don't realize how to protect it. In particular, many residential areas are basically lightning protection blind areas. In the past, the traditional concept of lightning protection that lightning rods can be installed on buildings should be changed, and the focus of lightning protection in cities and towns should be on preventing "induced lightning".

Induction lightning strike is caused by electrostatic induction or electromagnetic induction during discharge of thunderstorm clouds, which makes metal objects on buildings, such as pipes, steel bars, wires, reaction equipment, etc.

It should be said that lightning is similar everywhere, but the harm is different.