Why is the body charged in autumn and winter always hit by those places in the door frame?

Clothes are worn in autumn and winter, and wool is more common. Static electricity is not produced by human body, but by friction when people are active. Friction between clothes will generate a lot of charge, which is more likely to be generated in dry air.

When the air is dry (when the air humidity is lower than 40% for a long time), these charges cannot be released and accumulate on the surface of clothes, and the voltage generated by the electrostatic charges carried by the human body is getting higher and higher. When it comes into contact with metal or other conductors, it is easy to discharge and be stabbed by fingers.

How to prevent electrostatic interference? The general principle of handling static electricity is "prevention"&; "release"

Prevent 1

Keep a certain humidity indoors.

The best way to prevent static electricity indoors is to increase the humidity of the air, which generally requires a relative humidity of 45%-65%. To keep the air humidity in dry season, you can put a pot of water indoors to let the water evaporate naturally, or use a humidifier to adjust the indoor humidity; You can also put some flowers and plants indoors, or often spray water on the indoor ground; Mop the floor with a wet mop and wipe the object with a wet cloth.

2

Wear more cotton-padded clothes and socks and try not to wear chemical fiber clothes.

Chemical fiber clothes, household fabrics, carpet sofas are all static super generators! With them, it is difficult to remember static electricity. Therefore, when we usually wear clothes, we should try to choose cotton clothes instead of chemical fiber products at home, which can greatly reduce the probability of static electricity.

three

Try to keep a distance of more than 2 meters from TV when watching TV.

Electrostatic charges generated by household appliances will be absorbed and accumulated by the human body. When watching TV, try to keep a distance of more than 2 meters from the TV. After watching TV, wash your hands and face immediately, so that the electrostatic charge on the skin surface can be released in the water.

four

Take a bath and change clothes frequently.

Taking a bath and changing clothes often can effectively eliminate the static electricity accumulated on the surface of human body.

five

Appropriately increase the intake of vitamins and acidic foods.

Such as carrots, cabbages, tomatoes and bean products, can improve the acidity of blood and maintain the normal electrolyte balance of human body.

Put 1

Ground discharge

Wool or chemical fiber clothes are wrapped around the body, just like wrapping a layer of insulation. If you wear shoes with rubber soles again, the static electricity accumulated by the human body cannot be transmitted to the ground. If you accumulate too much, you will discharge when you touch some metals, and people will get an electric shock. At this time, walking barefoot for a few steps can release excessive static electricity accumulated in the body.

2

Touch-wall discharge

After taking off your clothes, you can gently touch the wall with your hands. Before touching the door handle or faucet, touch the wall with your hand to discharge the static electricity in your body.

three

Touch the door frame first, then the iron gate.

In the car, the friction between the car body and the seat generates static electricity and accumulates it. When your hand suddenly touches the iron gate, you will be electrocuted. So when you get off the bus, hold the metal door frame in advance to eliminate the static electricity on your body, so as to avoid suddenly touching the iron gate and getting an electric shock.