Do not turn off household appliances such as TVs or computers during thunderstorming

To turn off. Usually, the main reason that the lightning season affects the safety of household appliances is caused by the intrusion of induction lightning. Induced lightning refers to the electromagnetic pulse of lightning generated on various metal pipes and lines entering the building when lightning occurs.

For a family, there are four main ways for induction lightning to penetrate: power supply lines, ** lines, feeders of cable or wireless TV antennas, and exterior walls or pillars of houses. The first three of these routes are directly connected to external lines with household appliances, and the harm is even more serious when these lines are overhead.

Because the strong lightning induction will produce a high lightning electromagnetic pulse on these overhead conductors, the electromagnetic pulse will directly enter the household appliances along these conductors and cause hazards. At present, it is often overlooked that the fourth way of induction lightning intrusion, that is, the installation of household appliances is not kept at a certain distance from the external walls and pillars of buildings. This is because when a direct or side lightning strikes the building where the occupants are located, the strong lightning current will flow into the ground along the exterior walls and pillars of the building.

In this process, electric and magnetic fields are generated in the surrounding space due to strong lightning currents flowing through the exterior walls or pillars of the building, which can be damaged if household appliances are too close to the exterior walls or columns. Lightning can be conducted through wires, antennas, and wires, causing damage to the electrical equipment connected to it. Therefore, electrical experts remind everyone:

When thundering, first close the doors and windows to avoid lightning entering the house; In order to avoid lightning strikes on household appliances, try not to use electrical appliances, and it is best to unplug the power supply; Don't hit **, especially don't call your phone.

<> it is best to turn off and unplug the power supply, now the city's power distribution line lightning protection effect is better, but there is also the possibility of being broken down by lightning. Circuits in mountainous areas must be unplugged, otherwise it is easy to burn out electrical appliances.

This answer applies to most brands of TVs such as LETV, Changhong, and Sony.

In fact, as long as the outdoor antenna is not connected, the TV is used indoors, and there is no need to be frightened, because although the thunder and lightning are powerful, before entering the room, the thunderstorm clouds have already discharged with the earth. In the short discharge process, most of its huge energy is converted into heat, light and other energy, so it will not cause harm.

Usually when lightning strikes, when watching TV during the event, most of the interference on the screen and in the accompanying sound is the radiant energy of lightning, not the energy of induction or discharge. This kind of radiant energy generally does not damage the TV. However, it must be emphasized that it is dangerous to use an outdoor antenna or to watch television outdoors during a thunderstorm, and lightning protection measures must be taken if it is monitored.

When thunder, the voltage instantly becomes very large, which will cause the electric light to fire and cause a disaster. But there is usually no need to turn off the lights, because the voltage increases, and the work of the substation is suspended at the same time, that is, the power is out, so the lights at home will automatically turn off the power even if they are not turned off, which is safe.