What are the basics of lightning and how to prevent it?

Thunder and lightning: Lightning is a majestic and somewhat intimidating electrical discharge accompanied by lightning and thunder. The condition for the generation of thunder and lightning is that there is accumulation in the thunderstorm cloud and polarity is formed. There are four types of lightning: direct lightning, electromagnetic pulse, spherical lightning, and cloud flash.

Lightning protection instructions: The lightning current generated when lightning occurs is the main source of damage, and its hazards include direct lightning strikes, induced lightning strikes and intrusion lightning guided by overhead lines. For example, the overhead lines used in various lighting, telecommunications and other facilities may introduce lightning into the room, so strict precautions should be taken.

Areas where lightning strikes are likely to occur.

1.Lack of lightning protection equipment or unqualified lightning protection equipment of tall buildings, storage tanks, etc.

2.There is no well-grounded metal roof.

3.Buildings, trees, etc. in damp or open areas.

4.Due to the conductivity of flue gases, chimneys are particularly susceptible to lightning strikes.

5.There are radios on the building and there are no lightning arresters and there is no place for good grounding.

Ways to prevent lightning.

Emergency Points:1Pay attention to close doors and windows, and indoor personnel should stay away from metal objects such as doors and windows, water pipes, and gas pipes.

2.Turn off household appliances and unplug them to prevent lightning from intruding from the power cord.

3.When outside, take shelter in time and do not stay in the open field. When there is nowhere to take shelter in the open wilderness, try to find a low-lying place (such as a dirt pit) to hide, or immediately squat down and reduce your body height.

4.Stay away from isolated trees, towers, telephone poles, billboards.

5.Immediately stop outdoor water activities such as swimming, boating, fishing, etc.

6.If multiple people are outdoors, do not crowd each other to prevent the current from reaching each other after a lightning strike.

2.Don't use your phone outdoors.

3.For those who are struck by lightning, cardiopulmonary resuscitation should be used immediately to rescue them.

4.Try to take a bath as little as possible during thunderstorms, and solar water heater users should not take a bath.

Take a look at it specifically:

In the security project, you can do salt wells to guide lightning!

The knowledge of lightning protection is as follows:1. When thunder and lightning, do not stay next to tall trees, stay away from wires, flagpoles, long metal railings, huge metal objects, mountain tops, commanding heights and other places.

2. When lightning, do not touch barbed wire, metal doors and windows, building exterior walls, and stay away from live equipment or similar metal devices.

3. When thunder and lightning, do not walk in the open air with metal objects, do not swim outdoors, do not ride horses, bicycles, etc.

Knowledge of lightning protection:

1.Do not take shelter from the rain on the roof of a building or under a tree.

Do not continue to play on the roof of buildings or other buildings, and do not go into isolated sheds, sentry boxes, or large trees to take shelter from the rain, and if you have to, keep a distance of 3 meters from the trunk of the tree, squat down and keep your legs together.

2.Do not stay on the surface of the water and near the water.

It is dangerous to swim in rivers, lakes, seashores, wash clothes, fish, play, etc. by the river.

3.Don't move fast.

It is best not to run in a thunderstorm, and it is not suitable to drive a motorcycle or a bicycle, as it is easy to be struck by lightning when moving quickly in a thunderstorm.

4.Keep away from metallic substances.

When walking in the rain, you can't hold an umbrella with an iron handle, and it's best to put away metal toys such as a latte; When sheltering from the rain, observe whether there are exposed metal objects or electrical equipment such as water pipes and gas pipes around, and should not stay near iron fences, metal clotheslines, overhead metal bodies and railway tracks.

5.Can't play with mobile phones.

Thunderstorms warn children not to play with their mobile phones. Try not to make or answer **, and avoid using the landline at home, because the lightning rod can only protect the building, but it is powerless against the lightning waves that invade along the overhead wires and ** lines. It's also not right to listen to songs in the rain.

6.Pay attention to wearing shoes during thunderstorms.

Walking barefoot or sheltering from the rain during a thunderstorm increases the likelihood of being struck by lightning. Playful children should immediately put on shoes or put plastic or other insulators on the soles of their feet.

7.Don't shower and bathe.

It is not advisable to take a shower when thunder and lightning are performed, because the water pipe is connected to the lightning protection ground. If you live in a high-rise building, you should also pay attention to closing the doors and windows to prevent lightning from hitting the room directly or preventing the intrusion of side lightning and ball lightning. Tell your child not to stick his head or hands out of the outdoors, and not to touch the metal frame of the window with his hands.

1. Do not stay on the top of a mountain, a ridge or the top of a building (structure).

2. Do not stay near iron gates, iron fences, metal clotheslines, overhead metal bodies and railway tracks.

3. Quickly take refuge in buildings (structures) with lightning protection, or in various vehicles and ships with metal shells. When the above conditions are not met, you should immediately squat with your feet together, bend your head forward, and lower your height to reduce the harm caused by the stride voltage. This is because the lightning current will gradually release energy along the ground to the surrounding areas through the lightning point.

At this time, a certain voltage may be generated between the two steps due to the difference in potential between the front foot and the back foot of the person during walking.

4. Do not take shelter from the rain under trees, telephone poles, billboards, and various iron towers. Because at this time, the damp branches of the big tree are equivalent to a lightning guide device, if you touch the big tree, telephone poles, billboards, and various iron towers with your hands, it is as if you are holding the lightning protection device to lead down the wire, you are likely to be struck by lightning.

5. Do not stay at the water's edge (rivers, rivers, lakes, seas, ponds, canals, etc.), swimming pools, and depressions, and quickly take refuge in nearby dry houses.

6. Do not hold metal objects to stay in thunderstorms, because metal objects are conductive substances and can sometimes play a role in guiding lightning in thunderstorms. Metal objects should be kept 5 meters away from the property until the lightning activity has stopped.

7. Do not touch or approach lightning protection down conductors, water pipes, grounding wires of household appliances, trunks of large trees and other objects that may be charged by lightning strikes, in order to prevent contact with voltage or contact with lightning strikes and side lightning strikes.

8. Do not answer and call mobile phones outdoors, because the electric waves of mobile phones will also lead to thunder.

9.When going out during a thunderstorm, it is best to wear rubber shoes, which can play a role in insulation.

10. When thunder, the first thing to do is to close the doors and windows to prevent lightning from hitting the room and spherical lightning from drifting into the room.

11. Leave the metal water pipe and the one connected to the roof indoors'sewer pipes, etc.

12. Showers should not be used. Although the metal water pipes of new residential buildings are generally equipotential connected to the lightning protection ground, it is still possible that the lightning current can be transmitted through the water flow and cause people**.

13. During thunderstorms, try not to call, answer, or use the Internet, and unplug the power supply, wires and TV feeders of household appliances that may introduce lightning into the room. The prudent and scientific way is to install the power arrester on the power line, install the lightning arrester on the first line, install the lightning arrester on the antenna feeder line and do a good job of reliable protection and grounding measures.

14. Keep the house dry, and when the house leaks, it should be repaired in time.

15. The insulator iron feet of the incoming power cord should be reliably grounded, and the protective ground wire in the indoor power socket should be well connected.

16. Do not pull the wire used for drying clothes and bedding to the window or door to prevent the wire from leading lightning.

17. Do not stay in the rain for a long time without lightning protection devices or isolated pavilions and grass sheds. Be careful to avoid electrical wiring, do not stand under light bulbs, and preferably when the power is off or not in use.

AC power lightning protection module is suitable for power protection of power distribution rooms, distribution cabinets, switch cabinets, AC and DC distribution panels, communications, electronics, electricity, networks, energy, railways, highways and other systems, so what are the lightning protection knowledge?

1. In thunderstorm weather, try not to play, watch TV, surf the Internet, and cut off the dangerous power supply.

2. In thunderstorms, unless there are special circumstances, do not go out, and keep the doors and windows closed and stay indoors.

3. In thunderstorm weather, if it is outdoors, do not take shelter under big trees, telephone poles, high-voltage lines, etc., and it is best to hide in a car or a building with lightning protection facilities nearby.

4. In thunderstorms, don't use umbrellas, don't carry ironware, don't collect and dry clothes hanging on wires, and stay away from metal devices.

5. In thunderstorms, don't play in the water and don't stand on high places.

6. In thunderstorm weather, it is best not to ride a bicycle or motorcycle to prevent conduction. Because the human body, bicycles, and motorcycles are all conductors, they are easy to transmit electricity.

That's it for the introduction of lightning protection knowledge.