Does rainy weather affect TV?

Watching TV in rainy days has little effect, but it may cause poor signal contact.

But you can't watch TV in lightning weather.

The discharge phenomenon in the atmosphere is lightning.

The lightning discharge process produces strong current, forming rich electromagnetic radiation and strong light radiation. In a very short time, the air in the lightning channel suddenly rises sharply, which makes the air expand rapidly. The air pressure near the passage reaches above 10 ~ 100 atmospheric pressure, and then the air rapidly cools and contracts, and the pressure decreases. This sudden expansion and contraction is completed in a few seconds. So a shock wave is generated at the moment of lightning explosion. The formation process of thunderstorm is an electrification process, and its actual electrification mechanism is quite complicated.

At present, human beings have not been able to systematically measure the situation in the cloud on the spot, and indoor experiments have not yet achieved the goal of truly and comprehensively simulating the reality in the cloud. It is generally believed that the convective movement in the convective cloud and the continuous collision and splitting of water droplets make the cumulonimbus cloud accumulate a lot of space charges through the electrification mechanism, forming positive and negative charge centers in different parts of the cloud, thus generating extremely high field strength. When the potential difference between clouds and between clouds and the ground increases to a certain value, spark discharge can occur.

Lightning hazards include:

Direct lightning: The generated high voltage and current cause many hazards, such as electric effect, thermal effect and mechanical force.

Lightning induction: electrostatic induction and electromagnetic induction caused by lightning current.

Lightning wave intrusion: lightning often enters the room along metal pipes, low-voltage transmission lines or wired communication lines such as electric lights and telephone lines, endangering personal safety or damaging equipment.

Many friends are afraid to watch TV on rainy days, because rain is usually accompanied by thunder. Cases of TV failure and damage caused by lightning strike abound. If it doesn't rain for 24 hours, it is suggested to turn on the TV for a while when it stops raining, especially the TV installed on the wall, which is very helpful to prevent moisture.

The internal structure of TV is complex, including a large number of integrated circuit boards. In addition, the imaging terminal has a voltage as high as tens of thousands of volts, and many places are easily adsorbed by electrostatic dust. Therefore, short circuits and faults are easy to occur in rainy days.