Seven measures for lightning protection and safety

General knowledge of lightning protection safety 1. Investigation on knowledge of thunderstorm prevention in primary school students

With the arrival of summer, there are more and more thunderstorms. In order to strengthen the safety management of schools in summer, let primary school students fully understand the harm of lightning and learn the knowledge of lightning protection, I will tell you some knowledge about lightning. "When encountering thunderstorm weather, teachers and students outdoors should immediately enter the building and close the doors and windows. Don't take shelter from the rain under the big tree, don't use metal umbrellas, and try not to ride bicycles; Stay away from balconies, metal railings, metal security nets, wires and other conductors and external walls of buildings, do not use faucets and showers, try not to use telephones, and turn off electrical equipment such as televisions, computers and stereos. If there is no place to hide in the open field when there is lightning, you should try to find a low and concave place (such as a pit) to hide, or immediately squat down, put your feet together, put your arms around your knees, try to bow your head, and don't stand on the playground when it thunders.

Why do you want to learn lightning protection knowledge? Because, as we all know, summer is thunderstorm season. Since May 27 this year, the provincial lightning protection center has issued a forecast: announcing that our province has entered a period of high lightning incidence. According to the data, every year, students are injured to varying degrees in thunderstorm weather, and even cause great tragedies. Therefore, it requires each of us to improve our awareness of lightning protection and take effective measures to prevent lightning strikes. Then, it is particularly important to master the corresponding lightning protection knowledge. According to experts, if you encounter lightning weather indoors (at school or at home), you should do the following:

(1) Turn off the TV and computer immediately, and be careful not to use the outdoor antenna of the TV, because once the lightning strikes the antenna of the TV, it will spread into the room along the cable, threatening electrical appliances and life safety.

(2) Turn off all kinds of household appliances as far as possible and unplug all power plugs to prevent lightning from invading from the power cord, causing fire or electric shock casualties.

(3) Don't touch or get close to metal water pipes and water pipes connected to the roof, and don't stand under electric lights. Try not to use the telephone or mobile phone, because lightning waves will invade along the communication signal line, causing danger.

(4) Close the doors and windows. When it thunders, don't open the window, and don't stick your head or hand out of the window.

(5) Don't take part in outdoor sports activities, such as running, playing ball and swimming.

(6) Don't collect clothes hanging on wires outdoors.

This is our lightning protection method at school or indoors. Then, what should we do if we encounter lightning weather outdoors or on the way to and from school?

(1) It's safest to enter a nearby building with good lightning protection. Never enter the shed or straw shed in the crop field, because lightning protection there is easy to be struck by lightning.

(2) Stay away from tall chimneys, iron towers, telephone poles, big trees and other objects. Never stand under the big trees to avoid the rain, otherwise it will be dangerous.

(4) When it thunders and rains, be careful not to play with metal umbrellas, or carry long objects, or ride motorcycles or bicycles.

(5) Don't panic, don't run, it's best to put your feet together and put your hands on your knees and squat down on the spot. The lower the better.

2. What is the common sense of lightning protection?

1. Lightning protection devices should be installed on buildings. According to the technical specification of lightning protection, lightning protection devices are divided into external lightning protection devices and internal lightning protection devices.

External lightning protection devices are mainly used to prevent direct lightning, including lightning receiving devices (lightning rod, lightning belt, lightning net, lightning wire), down conductor and grounding device; Internal lightning protection devices are used to prevent induced lightning, mainly including equipotential connection, lightning protection wiring, grounding wire and surge protector. In order to reduce the hidden danger of lightning disaster, comprehensive lightning protection must be carried out for buildings.

Second, the daily knowledge of lightning protection 1. During a thunderstorm, people should not go near high-voltage wires and high-voltage equipment, tall buildings, chimneys, trees, flagpoles, etc. Not to mention standing in an empty highland or under a big tree to shelter from the rain and being vulnerable to lightning; 2. When working in the suburbs or in the open air, don't use umbrellas with metal columns, take off glasses, watches and belts with metal frames, and don't use metal tools, such as crowbars. These metal columns, tools, etc. Will become a conductive object of lightning strike; 3. Don't wear wet clothes near or stand on metal objects piled up in the open air; 4. Don't turn on your mobile phone at the top of the mountain in thunderstorm weather, let alone use it; 5. Do not touch and approach the grounding conductor of lightning protection device in thunderstorm weather; 6. Leave lighting lines, telephone lines, TV lines and other lines indoors in a thunderstorm to prevent lightning from infringing on people and being hurt; 7. Don't go swimming, boating or fishing in rivers and lakes in thunderstorm weather; 8. Turn off indoor TV, tape recorder, stereo, air conditioner and other electrical appliances in thunderstorm weather to avoid conduction.

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. Third, first aid measures after lightning strike When a person is struck by lightning, the patient should be taken to the hospital immediately.

If breathing and heartbeat have stopped at that time, mouth-to-mouth resuscitation and chest external heart should be done 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.

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. To sum up, lightning protection should be done in thunderstorm days to ensure personal and property safety.

3. Common sense of preventing lightning hazards

Fourth, how to pay attention to personal safety when lightning occurs.

1, when lightning strikes, turn off indoor electrical equipment such as TV, stereo, DVD player and computer, and disconnect the power supply and signal line.

2. During lightning, do not touch water pipes, barbed wire, metal doors and windows, external walls of buildings, and stay away from live equipment such as wires or similar metal devices. Close the doors and windows to prevent lightning intrusion.

3. During the lightning, don't walk in the open air with metal objects, don't play metal umbrellas, and don't ride horses or bicycles.

4, lightning, immediately looking for shelter in the wild. The concrete building with lightning rod is a good place for lightning protection.

When it thunders, don't crowd together in the wild, but hide in a big mountain hole.

6. When lightning strikes, you can't stay at the edge of tall trees and forests, around wires and flagpoles, beside haystacks, tents, rails, long metal railings, huge metal objects, hilltops, commanding heights and other places.

7. It is not advisable to swim outdoors during lightning.

8. When lightning strikes, if the masking conditions do not allow, you should immediately kneel down, bend forward, and put your arms around your knees.

9. Enter the building with good lightning protection device as soon as possible, close the doors and windows, and do not stay at the top of the building.

10, don't lean against the external walls and columns of buildings, and don't approach or touch the charged equipment such as metal water pipes, metal doors and windows.

1 1. If lightning arresters are not installed on the signal lines of power supply, telephone, TV, etc. Try not to watch TV, make phone calls or use other electrical appliances. It's best to unplug it.

12, don't take a bath at home, especially if the solar water heater is installed on the roof, which is not within the protection scope of direct lightning.

13. It's safe to sit in the carriage. Never get off the bus when lightning strikes. Very dangerous.

14, do not enter the isolation shed or sentry box without lightning protection measures to avoid rain.

15, more than three meters away from trees or telephone poles.

16, try not to use your cell phone.

17. Avoid all conductive objects, such as metal, charcoal, wet animals and plants, and don't wear wet clothes.

18, don't shelter from the rain under trees, especially trees in open environment, because they are likely to become the path of lightning discharge; Don't shelter from the rain next to tall buildings (such as towers); Don't take shelter from the rain next to collapsed and wet old buildings (such as ancient temples); Don't walk on the rails;

Lightning rod and its grounding down lead away from buildings.

19. If you are in the wild and have nowhere to hide, you should immediately squat down during a thunderstorm, put your feet together, put your arms around your knees, and bend your head downward to minimize your body volume and grounding area. If you have metal objects in your hand (such as umbrellas with metal poles, iron utensils, shovels, etc.). ), put them away quickly.

20. indoors, don't get close to heating pipes and water pipes; Don't continue watching or listening to TV or radio (especially those equipped with outdoor antenna), cut off the power supply, disconnect the outdoor antenna from the TV and connect it with a ground wire. For the sake of safety, it is best to stop using electric appliances such as lights, remove large items that are easy to conduct electricity, and try not to make phone calls.

2 1. If the lightning is getting more and more violent, it is safer to close the doors and windows, put out the fire, spread a thick blanket or a long wooden stool in the center of the house, and then put your family on it.

22. If electrical equipment is found to be burnt by lightning, cut off the power supply as soon as possible and find an electrician to check and repair it. When it is impossible to judge whether there is a power outage, it should be regarded as a power outage. At the same time, inform the electrician to check and deal with it, and keep the site safe. Don't let people or livestock near it, and the distance should be more than 8 meters.

23, in case of lightning accident, should actively carry out artificial respiration and chest compressions and other first-aid measures.

4. Little knowledge of lightning protection

(1) Don't venture out unless absolutely necessary. Stay indoors.

(2) Stay away from open doors, windows, stoves, radiators, metal pipes, sewers and plugged-in appliances. (3) Do not use plug-in electrical equipment such as hair dryer, voltage brush and electric shaver during the rainstorm.

(4) Don't use the telephone during the storm, lightning may hit the telephone line outside.

(5) Don't collect clothes on the clothesline.

(6) Do not engage in the installation of fences, telephones or transmission lines, pipelines or building steel.

(7) Do not use metal objects such as fishing rods and golf clubs. Golfers who wear shoes with nails become excellent lightning rods.

(8) Do not handle flammable materials in open containers.

(9) Leave the water and the boat.

(10) If you are traveling, stay in your car, which is often an excellent lightning protection facility. When there is no shelter, you should avoid the tallest object in the area. If there are only isolated trees nearby, your best protection is to squat in the open air, and the distance from the isolated tree is twice its height.

(1 1) Avoid the metal clothesline of the agreed open space and wire railings. Open sheds and any conductive objects protruding from the ground.

(12) When you feel the charge, that is, if your hair stands on end, or your skin is shaking, you may get an electric shock. Fall to the ground at once. People who are struck by lightning will go into severe shock and may be burned, but they will not be charged and can be treated safely. People who are stunned by electric shock can generally wake up through timely mouth-to-mouth resuscitation, cardiac resuscitation and long-term artificial respiration. In a group of people who were electrocuted, the obvious dead should be dealt with first. Those who are still alive may recover on their own.

Do you understand now?

5. Primary school students' knowledge of lightning protection and rain protection

With the arrival of summer, there are more and more thunderstorms. In order to strengthen the safety management of schools in summer, let primary school students fully understand the harm of lightning and learn the knowledge of lightning protection, I will tell you some knowledge about lightning.

"When encountering thunderstorm weather, teachers and students outdoors should immediately enter the building and close the doors and windows. Don't take shelter from the rain under the big tree, don't use metal umbrellas, and try not to ride bicycles; Stay away from balconies, metal railings, metal security nets, wires and other conductors and external walls of buildings, do not use faucets and showers, try not to use telephones, and turn off electrical equipment such as televisions, computers and stereos. If there is no place to hide in the open field when there is lightning, you should try to find a low and concave place (such as a pit) to hide, or immediately squat down, put your feet together, put your arms around your knees, try to bow your head, and don't stand on the playground when it thunders.

Why do you want to learn lightning protection knowledge? Because, as we all know, summer is thunderstorm season. Since May 27 this year, the provincial lightning protection center has issued a forecast: announcing that our province has entered a period of high lightning incidence.

According to the data, every year, students are injured to varying degrees in thunderstorm weather, and even cause great tragedies. Therefore, it requires each of us to improve our awareness of lightning protection and take effective measures to prevent lightning strikes.

Then, it is particularly important to master the corresponding lightning protection knowledge. According to experts, if you encounter lightning weather indoors (at school or at home), you should do the following: (1) Turn off the TV and computer immediately, and be careful not to use the outdoor antenna of the TV, because once lightning hits the antenna of the TV, it will spread into the room along the cable, threatening electrical appliances and life safety.

(2) Turn off all kinds of household appliances as far as possible and unplug all power plugs to prevent lightning from invading from the power cord, causing fire or electric shock casualties. (3) Don't touch or get close to metal water pipes and water pipes connected to the roof, and don't stand under electric lights.

Try not to use the telephone or mobile phone, because lightning waves will invade along the communication signal line, causing danger. (4) Close the doors and windows.

When it thunders, don't open the window, and don't stick your head or hand out of the window. (5) Don't take part in outdoor sports activities, such as running, playing ball and swimming.

(6) Don't collect clothes hanging on wires outdoors. This is our lightning protection method at school or indoors. Then, what should we do if we encounter lightning weather outdoors or on the way to and from school? (1) It's safest to enter a nearby building with good lightning protection.

Never enter the shed or straw shed in the crop field, because lightning protection there is easy to be struck by lightning. (2) Stay away from tall chimneys, iron towers, telephone poles, big trees and other objects. Never stand under the big trees to avoid the rain, otherwise it will be dangerous.

(4) When it thunders and rains, be careful not to play with metal umbrellas, or carry long objects, or ride motorcycles or bicycles. (5) Don't panic, don't run, it's best to put your feet together and put your hands on your knees and squat down on the spot. The lower the better.

6. Introduce about 300 words of common sense about lightning protection.

In fact, lightning is a huge electric spark.

This is obvious when lightning rushes from the ground to the clouds or from the clouds to the ground, although it can also spread in or between clouds. The airflow that makes up a storm cloud can separate powerful electric energy from the cloud.

Positive current is concentrated in the lower part of the cloud, and negative current is concentrated in the upper part of the cloud or on the ground. Just like electromagnetism, positive and negative electricity attract each other. After continuous transmission, positive and negative currents collide, forming a huge electric spark, thus forming lightning.

Because the speed of light is about 6.5438+0 million times that of sound, there will be a certain time difference between lightning and accompanying thunder. The distance between you and the storm can be calculated by counting the seconds of the time difference between lightning and thunder, and then dividing by 5 meters. The number is the number of miles you are away from the storm, that is, your distance from the storm (miles) = the time difference between lightning and thunder (seconds) /5 (meters).

Lightning strikes millions of volts, causing air to expand and explode, thus forming lightning. Thunder itself is harmless.

The possibility of being struck by lightning in thunderstorm weather is very small, but the lightning phenomenon cannot be predicted completely and accurately, so be careful to prevent and reduce the danger. Lightning always twists and turns along the path of least resistance.

Its path in the air depends entirely on the electric field and charge distribution in the air, and it is usually only affected by the ground conditions when it is more than ten meters away from the ground to 100 meters. Generally speaking, the ground has good conductivity and there are prominent tall objects. , vulnerable to lightning.

For example, the geological conditions of metal minerals with good conductivity are more vulnerable to lightning strikes than general geological conditions, and the chances of being struck by lightning in wet soil are more than in dry soil, sandy land and rocky land. The water surface is more vulnerable to lightning strikes than in dry land, and prominent buildings such as tall buildings and chimneys are more vulnerable to lightning strikes than in flat land, and mountainous areas are more vulnerable to lightning strikes than in valleys. There are four ways for lightning to hurt people: direct lightning, contact voltage, side lightning and step voltage.

Direct lightning: When lightning happens, it directly hits the human body, because people are good conductors, and lightning current as high as tens of thousands to hundreds of thousands of amperes flows from the top of people's heads through the human body to their feet and into the earth. People were struck by lightning, injured by lightning, and even died seriously.

Contact voltage: When lightning current discharges through tall objects, such as tall buildings, trees and metal structures. Powerful lightning current will produce tens of thousands to hundreds of thousands of volts on tall conductors. When people accidentally touch these objects, they will be attacked by this touch voltage and get an electric shock accident.

Side lightning strike: When lightning strikes an object, strong lightning current discharges to the earth through the object. Generally speaking, current is the easiest to flow through a channel with low resistance.

The resistance of human body is very small. If a person is near an object struck by lightning, lightning current will break through the air near the height of the person's head and then be discharged through the human body. Make people under attack.

Step voltage: When lightning is released from the cloud to the earth, it will produce a potential field. The distribution of potential is that the closer to the lightning point on the ground, the higher the potential; The potential far away from the lightning strike point is low.

If the site potentials of people's feet are different when lightning strikes, this potential difference will generate voltage between people's feet, and there will be current passing through people's lower limbs. The greater the distance between legs, the greater the step voltage.

In view of the above four ways of lighting people, corresponding measures should be taken to prevent them under various circumstances. What kind of people are easily struck by lightning? The maximum probability of being struck by lightning is1∶ 600,000.

The number of lightning itself has not increased, it is 8 million times a day. According to the statistics of insurance companies, about 600 people are struck by lightning every year, and now it has increased to 1500.

Some scientists blame this on the male hormone testosterone. Because 86% of people who are struck by lightning are men.

They stressed that in a group of people, people with more testosterone are more likely to be struck by lightning. Why can people who have been struck by lightning still live? It should be said that tens of millions of volts of charge and hundreds of thousands of amperes of current can kill people in an instant, but some people survived.

Some people think that lightning and wires are different. Sometimes lightning doesn't even leave any trace on the body, but it penetrates the internal organs.

Or on the contrary, just passing by and burning clothes and shoes. Powerful current sometimes "blows through" the whole body in a few millionths of a second, so it is impossible to burn to ashes all the time.

The key is to look at the average resistance of organs and tissues in the body of 700 ohms. The greater the resistance, the more serious the consequences. When a person is struck by lightning, the first thing that "catches fire" is the nerve fiber, that is, the circuit in the body, but at most its protective film is damaged, which is essentially similar to the insulator in the wire.

After being hit by lightning and returning to normal, people don't even feel any change. Sometimes it takes months to feel it, and then the nerve fibers start to "shorten" and make contact in some places where they shouldn't.

The general principles of Safety Code are: firstly, the position of human body should be as low as possible to reduce the risk of direct lightning strike; Second, the contact parts between the human body and the ground, such as feet, should be as close as possible, and the smaller the contact with the ground, the better, so as to reduce the "step voltage". 1. Feeling skin tingling or hair standing on end during thunder and lightning is a harbinger of lightning and should be avoided immediately.

If you can't avoid it, get close to the ground immediately. People who are struck by lightning may be burned or severely shocked, but they will not be prosecuted and can receive treatment safely.

If you are in tall objects such as trees and buildings, you should leave immediately. If it is too late to leave tall objects, find some dry insulation on the ground, sit on it, take a squat lightning protection posture, and pay attention to your feet together.

Put your hands together. Never put them on the ground. Never lie down. At this time, although the height is reduced, the danger of "step voltage" is increased.

Water can conduct electricity, so wet objects are not insulated. 3. Don't avoid the mouth of the cave, under big rocks or hanging rocks during a thunderstorm, because these places will become spark gaps, and the arc generated when the current passes will hurt people.

But the deep hole is safe, so you should try to go inside. Try to hide in the depths of the cave. Keep your feet together and don't touch the cave wall. At the same time, take off your metal objects, such as watches, rings, earrings, necklaces, etc.

7. Basic knowledge of lightning and its protection

In fact, lightning is a huge electric spark.

This is obvious when lightning rushes from the ground to the clouds or from the clouds to the ground, although it can also spread in or between clouds. The airflow that makes up a storm cloud can separate powerful electric energy from the cloud.

Positive current is concentrated in the lower part of the cloud, and negative current is concentrated in the upper part of the cloud or on the ground. Just like electromagnetism, positive and negative electricity attract each other. After continuous transmission, positive and negative currents collide, forming a huge electric spark, thus forming lightning.

Because the speed of light is about 6.5438+0 million times that of sound, there will be a certain time difference between lightning and accompanying thunder. The distance between you and the storm can be calculated by counting the seconds of the time difference between lightning and thunder, and then dividing by 5 meters. The number is the number of miles you are away from the storm, that is, your distance from the storm (miles) = the time difference between lightning and thunder (seconds) /5 (meters).

Lightning strikes millions of volts, causing air to expand and explode, thus forming lightning. Thunder itself is harmless.

The possibility of being struck by lightning in thunderstorm weather is very small, but the lightning phenomenon cannot be predicted completely and accurately, so be careful to prevent and reduce the danger. Lightning always twists and turns along the path of least resistance.

Its path in the air depends entirely on the electric field and charge distribution in the air, and it is usually only affected by the ground conditions when it is more than ten meters away from the ground to 100 meters. Generally speaking, the ground has good conductivity and there are prominent tall objects. , vulnerable to lightning.

For example, the geological conditions of metal minerals with good conductivity are more vulnerable to lightning strikes than general geological conditions, and the chances of being struck by lightning in wet soil are more than in dry soil, sandy land and rocky land. The water surface is more vulnerable to lightning strikes than in dry land, and prominent buildings such as tall buildings and chimneys are more vulnerable to lightning strikes than in flat land, and mountainous areas are more vulnerable to lightning strikes than in valleys. There are four ways for lightning to hurt people: direct lightning, contact voltage, side lightning and step voltage.

Direct lightning: When lightning happens, it directly hits the human body, because people are good conductors, and lightning current as high as tens of thousands to hundreds of thousands of amperes flows from the top of people's heads through the human body to their feet and into the earth. People were struck by lightning, injured by lightning, and even died seriously.

Contact voltage: When lightning current discharges through tall objects, such as tall buildings, trees and metal structures. Powerful lightning current will produce tens of thousands to hundreds of thousands of volts on tall conductors. When people accidentally touch these objects, they will be attacked by this touch voltage and get an electric shock accident.

Side lightning strike: When lightning strikes an object, strong lightning current discharges to the earth through the object. Generally speaking, current is the easiest to flow through a channel with low resistance.

The resistance of human body is very small. If a person is near an object struck by lightning, lightning current will break through the air near the height of the person's head and then be discharged through the human body. Make people under attack.

Step voltage: When lightning is released from the cloud to the earth, it will produce a potential field. The distribution of potential is that the closer to the lightning point on the ground, the higher the potential; The potential far away from the lightning strike point is low.

If the site potentials of people's feet are different when lightning strikes, this potential difference will generate voltage between people's feet, and there will be current passing through people's lower limbs. The greater the distance between legs, the greater the step voltage.

In view of the above four ways of lighting people, corresponding measures should be taken to prevent them under various circumstances. What kind of people are easily struck by lightning? The maximum probability of being struck by lightning is1∶ 600,000.

The number of lightning itself has not increased, it is 8 million times a day. According to the statistics of insurance companies, about 600 people are struck by lightning every year, and now it has increased to 1500.

Some scientists blame this on the male hormone testosterone. Because 86% of people who are struck by lightning are men.

They stressed that in a group of people, people with more testosterone are more likely to be struck by lightning. Why can people who have been struck by lightning still live? It should be said that tens of millions of volts of charge and hundreds of thousands of amperes of current can kill people in an instant, but some people survived.

Some people think that lightning and wires are different. Sometimes lightning doesn't even leave any trace on the body, but it penetrates the internal organs.

Or on the contrary, just passing by and burning clothes and shoes. Powerful current sometimes "blows through" the whole body in a few millionths of a second, so it is impossible to burn to ashes all the time.

The key is to look at the average resistance of organs and tissues in the body of 700 ohms. The greater the resistance, the more serious the consequences. When a person is struck by lightning, the first thing that "catches fire" is the nerve fiber, that is, the circuit in the body, but at most its protective film is damaged, which is essentially similar to the insulator in the wire.

After being hit by lightning and returning to normal, people don't even feel any change. Sometimes it takes months to feel it, and then the nerve fibers start to "shorten" and make contact in some places where they shouldn't.

The general principles of Safety Code are: firstly, the position of human body should be as low as possible to reduce the risk of direct lightning strike; Second, the contact parts between the human body and the ground, such as feet, should be as close as possible, and the smaller the contact with the ground, the better, so as to reduce the "step voltage". 1. Feeling skin tingling or hair standing on end during thunder and lightning is a harbinger of lightning and should be avoided immediately.

If you can't avoid it, get close to the ground immediately. People who are struck by lightning may be burned or severely shocked, but they will not be prosecuted and can receive treatment safely.

If you are in tall objects such as trees and buildings, you should leave immediately. If it is too late to leave tall objects, find some dry insulation on the ground, sit on it, take a squat lightning protection posture, and pay attention to your feet together.

Put your hands together. Never put them on the ground. Never lie down. At this time, although the height is reduced, the danger of "step voltage" is increased.

Water can conduct electricity, so wet objects are not insulated. 3. Don't avoid the mouth of the cave, under big rocks or hanging rocks during a thunderstorm, because these places will become spark gaps, and the arc generated when the current passes will hurt people.

But the deep hole is safe, so you should try to go inside. Try to hide in the depths of the cave. Keep your feet together and don't touch the cave wall. At the same time, take off your metal objects, such as watches, rings, earrings, necklaces, etc.

8. Lightning protection knowledge (about 300 words)

To ensure safety, the following rules should be observed outdoors:

1, don't stay on the platform of high-rise buildings in thunderstorm weather, and don't enter isolated shacks, sentry boxes, etc. In the open air.

2. Stay away from the exposed water pipes, gas pipes and other metal objects and power equipment in the building.

3. It is not advisable to hide under the big tree during a thunderstorm. If necessary, you must keep a distance of 3 meters from your torso, squat down and put your legs together.

4. If there are ants crawling on your head, neck and hands when thunder and lightning strike, and your hair stands on end, it means that lightning is coming. Get down on the ground quickly to reduce the risk of being struck by lightning, and take away the metal ornaments, hairpins and necklaces you wear.

5. If you encounter a thunderstorm outdoors and have no time to leave tall objects, you should immediately find some dry insulation and sit on it with your feet crossed. Don't put your feet on the ground outside insulation, because water can conduct electricity.

6. When avoiding thunderstorm outdoors, be careful not to hold the ground with your hands. At the same time, put your hands on your knees, keep your chest close to your knees, and keep your head as low as possible, because your head is more vulnerable to lightning than other parts of your body.

7. When you hear thunder within a few seconds after seeing lightning outdoors, it means that you are in a dangerous environment near a thunderstorm. At this time, you should stop walking, put your feet together and squat down immediately. Don't get involved with people. It is best to use plastic rain gear and raincoat.

8. In thunderstorm weather, it is not advisable to open an umbrella or hold high badminton rackets, golf clubs and hoes in the wild. Not suitable for outdoor ball games. It is very dangerous to play golf and football in thunderstorm weather. It is not advisable to stay on the water surface or water edge; It is not advisable to wash clothes, fish, swim or play by the river.

9. In thunderstorm weather, it is not advisable to drive a motorcycle, ride a bicycle or run fast in the rain, because the greater the stride of the body, the greater the voltage, and the easier it is to hurt people.

10. If you see the high-voltage line being broken down by lightning outdoors, you should be vigilant at this time because there is a step voltage near the breakpoint of the high-voltage line. People nearby must not run at this time, but should jump off the scene with their feet together.