What are the methods to prevent lightning strike?

1. Lightning protection device is installed on the building. That is, lightning protection devices are used to introduce lightning current into the earth and then disappear.

2. During a thunderstorm, people should not go near high-voltage distribution rooms, high-voltage wires and isolated tall buildings, chimneys, poles, trees, flagpoles, etc. Not to mention standing in an empty highland or under a big tree to shelter from the rain.

3. You can't use umbrellas with metal columns. Do not use metal tools, such as crowbars, when working in the suburbs or in the open air.

4. Don't wear wet clothes near or stand on metal objects in the open air.

Don't turn on your mobile phone at the top of the mountain in thunderstorm weather, let alone use it.

6. Don't touch and approach the grounding conductor of lightning protection device in thunderstorm days.

7. In a thunderstorm, leave lighting lines, telephone lines, TV lines and other lines indoors to prevent lightning from infringing on people and being hurt.

8. When it thunders and rains, it is forbidden to stay at the top of the mountain or in hilly areas. More importantly, it is forbidden to continue to push up the rain scene. Don't hide under big trees or near telephone poles, and don't walk or stand in open fields. You should hide in a low-lying place as soon as possible, or try to find a room floor or a dry cave to escape.

9. In thunderstorm weather, don't use an umbrella with a metal handle, and take off glasses, watches and belts with metal frames. If you travel by bike, you should leave the bike as soon as possible and stay away from other metal objects to avoid being struck by lightning.

10. Don't go swimming, boating or fishing in rivers and lakes in thunderstorm weather.

1 1. In case of lightning, thunder and rainstorm, visitors should immediately turn off the indoor TV, tape recorder, stereo, air conditioner and other electrical appliances to avoid using electricity. It's safer in the middle of the room when it thunders. Don't stay under the electric light, and don't lean against posts, walls, doors and windows, so as to avoid accidents caused by induced electricity when it thunders.

When lightning strikes, the traveling companion should take the patient to the hospital immediately. If breathing and heartbeat have stopped at that time, mouth-to-mouth resuscitation and chest massage should be carried out at the scene immediately, and on-site rescue should be actively carried out. Don't rush to the hospital without rescue, otherwise it will delay the onset and lead to death. Sometimes, on the way to the hospital, we have to continue artificial respiration and chest massage. In addition, we should pay attention to keep patients warm. If you have mania, convulsions, convulsions and other mental symptoms, you should also do a cold compress on your head. For the part of electric burn, in the case of first aid, it is only necessary to keep it dry or bandage it.

During a thunderstorm, even if a lightning rod is installed, it is necessary to quickly unplug the indoor TV, refrigerator and antenna power supply to prevent unnecessary losses caused by space electromagnetic interference. In addition, judging from the formation and occurrence process of lightning, lightning accidents mostly occur in open fields, the tops of buildings, tall trees, rivers, lakes, ponds and wet areas.

Wang Hongmin, member of the National Technical Committee for Standardization of Building Electrical Devices: Outside, we should consider the lightning activity area and see the distance of lightning activity. Generally, we can judge the distance by listening to thunder. Don't hide under lightning rods and trees. Don't open an umbrella in an open place, because the umbrella has a needle tip and the electric field intensity should be concentrated. Don't use your mobile phone in an open place. Squat down and put your feet together. In case of thunderstorm, citizens are advised to hide in buildings with metal doors and windows or lightning rods. The car with metal body is also the best "lightning protection place". Once these buildings or cars are struck by lightning, their metal frames or lightning protection devices or the metal itself will lead lightning current into the ground.

The number of thunder and lightning-when the thunderstorm is going on, the rumble of thunder continues. If the time interval of thunder is less than 15 minutes, no matter how long the thunder spreads intermittently, it is counted as a thunderstorm; If the lightning stop time is longer than 15 minutes, it is divided into two thunderstorms.

Lightning hour-that is, there is a thunderstorm within astronomical hours, or more generally, thunder is heard during this time, regardless of the duration of the thunderstorm. The "annual lightning hours" in a certain area refers to how many astronomical hours of thunderstorms have occurred in that area in a year, regardless of whether the thunderstorm lasted for a whole hour or only a few minutes in a certain hour.

Thunderstorm day-also known as lightning day. This is what we are most familiar with. As long as there are thunderstorms and thunder on this day, no matter how long the thunderstorm lasts, it is counted as a lightning day. "Annual Lightning Day" is equal to the sum of annual lightning days.

Thunderstorm month-also known as lightning month-means there will be thunderstorms this month. "Thunderstorm months per year" refers to how many months in a year there are thunderstorms.