Why turn off electrical appliances when thundering

The high voltage generated by the strong movement of the atmosphere can be instantaneously discharged through the power line or antenna (mainly long wire) of electrical equipment, resulting in internal breakdown (high-voltage damage) or melting (power damage) of electronic components in electrical equipment, and finally causing permanent damage to electrical equipment

And the strong magnetic field caused by this high voltage and strong discharge sometimes produces high voltage in the transformer of some electrical appliances, burning electronic components Good electrical appliance manufacturers will do the corresponding lightning protection measures when designing circuits and designing printed circuit boards, high-rise buildings must be equipped with lightning rods, and do not use electrical appliances when thundering

TV: Watching TV during thunder, the image is very unstable, the interference is large, and the mood is always a little scared, worried about the plane crashing and people dying, is this possible?

In fact, as long as the outdoor antenna is not connected, the TV is used indoors, and there is generally 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.

Electric light: When thunder, the voltage becomes very large instantly, which will cause the electric light to go off 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.

Computer: The voltage of the powerful lightning will cause the semiconductor integrated circuit to be broken down instantaneously and lose its original polarity, so the integrated circuit will be damaged, the computer is composed of a large number of integrated circuits, and if the integrated circuit is broken, the computer will be broken.

In addition, the voltage of thunder is very high, and the instantaneous high-voltage discharge will cause the nitrogen in the air to be broken down and burned, which is to release a lot of heat, and it will also burn the computer.

Furthermore, the type of lightning belongs to static electricity, and those who know the circuit know that static electricity is the first killer of integrated circuits.

Thunder has the opportunity to cause the wire to produce instantaneous high voltage At this time, the high voltage may break through the electrical components, and the serious one may cause **, and the slight one will also burn the fuse tube So if it is an area with more serious thunder, sometimes even the electric lights must be turned off, because it may suddenly burst on, hurting people nearby Of course, if the clouds are very high, it will have no effect Generally, those thunders that sound more scary, the clouds are low, and they must be turned off at this time!

Areas without lightning rods are more suitable.

I never turn off thunder.

There are many thunderstorms in the south, and it is not annoying to die if it is always closed.

It is very necessary, near the minefield, the conductor will produce an instantaneous current, and this instantaneous current will easily burn the household appliances, hehe In the past, after a thunderstorm, the whole village of **, the TV set was all broken.

Ordinary thunderstorms are not necessary, unless there is a strong thunderstorm, not only to unplug all the electrical appliances at home, including the first line, network cable, cable TV signal line all unplugged, to avoid lightning through these lines into the indoor damage to electrical appliances.

When lightning strikes, it will also hit the power transmission line, and enter the household appliances through the lines, causing the appliances to be damaged. The lightning rod on the roof only protects the house, and the power cord can have a long length and is not within the protection range of the housing lightning rod. After a lightning strike, dozens of public ** meters (powered by AC) are often damaged, and all of them are partially damaged.

Therefore, it is a good habit to close the main power switch at home when the lightning flashes. Cable TV also unplug the signal line, do not hit **, but also to prevent the introduction of lightning strikes from the outside line.

There are two types of lightning disasters: direct lightning and induction lightning.

Direct lightning: A direct conductive path is formed between the cloud and the ground, such as buildings and trees, which can be resolved by lightning protection facilities such as lightning rods.

Induced lightning does not directly form a pathway, but the energized electrical appliance forms electromagnetic induction and interaction with the lightning electric field. Anti-induction lightning measures are electromagnetic shielding facilities. There are no such facilities in general buildings, so when lightning occurs, you should avoid using computers, televisions, mobile phones, etc.

Do you have to unplug electrical appliances when thunder? It's not too late to know now, and remind the people around you after reading it.

Because lightning is electrostatic power damage, but also has high voltage damage, the high voltage generated by the strong movement of the atmosphere can be instantly forced to discharge through the power cord or antenna of the electrical appliance, resulting in the internal breakdown or melting of the electronic components in the electrical appliance, and finally cause permanent damage to the electrical appliance. <

Because lightning is electrostatic power damage, but also has high voltage damage, the high voltage generated by the strong movement of the atmosphere can be instantly forced to discharge through the power cord or antenna of the electrical appliance, resulting in the internal breakdown or melting of the electronic components in the electrical appliance, and finally cause permanent damage to the electrical appliance.

Dear, televisions, lights, computers, and air conditioners cannot be used during thunder. Hello, I will expand for you, the voltage instantly becomes very large when thunder, which will cause the electric light to fire and cause a disaster. However, 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 to say, the power is out, and the lights at home will automatically turn off the power even if they are not turned off, which is safe.

During the thunderstorm season, use wireless** and computers with caution. Because, in thunderstorm weather, the mobile phone is turned on, especially when the electromagnetic wave signal is strong, which is easy to cause "induction thunder". Once the mobile phone is hit in the lightning strike area, the lightning will interfere with the mobile phone signal and "burn" the mobile phone; If people are in an open area, people and mobile phones are highly vulnerable to lightning strikes.

Therefore, the mobile phone should be turned off in an open environment to avoid accidental injury by Shengzhou Jian. Hope mine can help you <>