How vehicles travel on thunderstorms

In the spring, the rainy and heavy rainfall weather is also worthy of our attention. Spring rainfall is often accompanied by meteorological characteristics such as strong winds and lightning, and this bad weather will cause great difficulties to driving safety.

Below we introduce a little safety knowledge about driving lightning protection on rainy days.

1. The necessity of lightning protection Lightning is a natural discharge phenomenon of the atmosphere, and there is a huge harmful effect. Lightning can cause damage to electrical equipment, casualties, building damage, vehicle damage, etc., and when lightning is severe, it can also lead to fire and explosion. Therefore, it is necessary to understand the destructive effects of lightning in order to do a good job of prevention.

The destructive effect of lightning can be roughly divided into three types: electrical property destruction, thermal property damage and mechanical property damage.

Electrical property damage: lightning can produce up to tens of thousands of volts or even hundreds of thousands of volts of inrush current, can destroy the insulation part of electrical equipment such as generators, transformers, cut-offs, etc., once the insulation part is damaged, it will cause a short circuit, which will lead to fire or explosion accidents.

Thermal property destruction: When the powerful current of tens of amperes or even thousands of amperes passes through the conductor, a large amount of heat will be generated inside the conductor in a very short period of time, and the huge heat can reach the ignition point of the general substance in a short period of time, so the high temperature generated in the lightning will often directly cause fire.

Mechanical destruction: Due to the thermal effect of lightning, it can cause a lot of pressure inside the object hit by lightning, but the hit object suffers serious damage or causes an explosion.

When the car is struck by lightning, it is easy to cause damage or serious damage to the electrical circuit, and more importantly, the personnel in the car not only have to easily cause damage or serious damage to the electrical circuit when the lightning strikes, but more importantly, the personnel in the car must not only protect the safety of the vehicle when the Turkish lightning strikes, but also pay special attention to protecting their personal safety.

2. Driving in the city rainy day to prevent lightning attack When encountering lightning weather, in order to ensure the safety of vehicles and personnel, you should try not to drive out, when you suddenly encounter lightning during driving, you should slow down the speed, try to stop and dodge, you must not hide under the trees and billboards, sudden lightning hits these objects, and it will fall down and smash into the car.

In addition, it is best to choose a place to park the car in the room, and avoid parking in the high-rise open-air parking building. In order to reduce the risk of the car being struck by lightning, the owner should put away the indoor antenna and turn off the car audio, so as to avoid the car being struck by lightning and introducing current into the car, causing the car circuit to be obstructed.

3. Driving in the suburbs to prevent lightning attacks When driving in the suburbs on rainy days, the surrounding roads are empty, and vehicles are more vulnerable to lightning strikes. The personnel in the car should close the window, must not extend the body out of the car, and try not to use the mobile phone, because the signal magnetic field of the mobile phone will change when thundering, and the powerful lightning will produce a strong electromagnetic field around the release process, which is likely to cause damage to the mobile device or casualties.

suggestion:

1) Identify the signal of lightning coming A. During the driving process, dark clouds are found, and the clouds gradually accumulate, and lightning may occur in this situation. B. Listening to the radio while driving in the rain, when a harsh noise is heard, it means that lightning may appear nearby. C. When driving in the rain, when the hair of the people in the car stands up or the skin flutters, lightning strikes may occur. D. When driving a car sees lightning, the distance between the center of lightning is judged by the length of time between seeing lightning and hearing thunder. If the interval is long, it means that the lightning is farther away, and vice versa, the distance is closer.

2) Common types of lightning strikes Usually we divide them into two types: direct lightning and induction thunder according to the different functions and principles of accumulation: A. Direct lightning is a lightning direct hit on the hit object. Powerful lightning passes through the hit object to produce a powerful thermal effect, which has a destructive effect on the hit object. B. Induction thunder means that when a thundercloud comes, all objects on the ground, especially conductors, due to electrostatic induction, gather a large amount of binding charges that are opposite to the electrode properties of the thunder. After the thundercloud discharge, the lightning charge becomes a free charge, thereby generating a very high electrostatic voltage, the voltage value can reach hundreds of thousands of volts, this voltage will often discharge the conductor, the metal object with poor iron and a large number of metal equipment and cause sparks, thereby causing fire, explosion, endangering the safety of people and property.

In view of the structural characteristics of the car, it is generally believed that the car itself is a closed metal body, which has a shielding effect and has a good protective effect on the personnel in the car when it encounters lightning strikes. But this is not to say that the car will not be struck by lightning, the outside of the car after being struck by lightning becomes a charged body, which is prone to danger.