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In thunderstorms, when there are charged clouds over high-rise buildings, the lightning rod and the top of the high-rise building are induced a large number of charges, because the lightning rod needle is pointed, and when electrostatic induction, the tip of the conductor always gathers the most charge In this way, the lightning rod gathers most of the charge The lightning rod forms a capacitor with these charged clouds, because it is sharper, that is, the area of the two poles of this capacitor is very small, and the capacitance is very small, that is to say, it can hold very little charge And it gathers most of the charge, so, When there is more charge on the clouds, the air between the lightning rod and the clouds is easy to be broken down and becomes a conductor In this way, the charged cloud layer forms a passage with the lightning rod, and the lightning rod is grounded The lightning rod can guide the charge on the cloud to the earth, so that it does not pose a danger to the high-rise building, and ensures its safety
In the event of a leakage, you will absorb the energy of the lightning!
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Do you know what triboelectric generation is? Thunder is the process by which clouds in the air at high altitude rub against each other under the action of air currents to produce electrostatic discharge. The lightning rod is the application of the principle of tip discharge to introduce the static electricity in the clouds into the earth through the conductor, so as to eliminate the harm of lightning.
Then the thunderstorm may have a high electric field near the lightning rod, which is very dangerous! It should be kept away from it at least a few tens of meters away.
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There are five ways to protect outdoor lightning during thunderstorms:1. Stay away from trees; 2. Keep away from metal and water pipes; 3. Stop the motorcycle and battery car in time; 4. Use plastic rain gear; 5. Do a good job of safety protection
First of all, don't hide from the rain under the tree is a truth that children know, but I still decided to emphasize again, thunderstorm weather under the tree to hide from the rain, will greatly increase the probability of being struck by lightning, so in the thunderstorm, you must keep a distance from the trees, at least three or five meters apart, otherwise it is easy to suffer when the lightning strikes the tree.
Secondly, in our urban facilities, there are actually many metal facilities, especially near high-voltage power poles, which are very easy to attract lightning, and many water pipes outside buildings are also easy to cause lightning strikes, so when we take shelter from the rain outside, we must also remember to stay away from these dangerous places, and if you can enter the room, you must go indoors to shelter from the rain as soon as possible.
Secondly, many people encounter thunderstorms when riding electric vehicles or battery cars, it is easy to speed up and go home, in fact, this will increase friction, but it is easier to attract thunder and lightning, if it is a rainstorm, accelerating riding is more dangerous, we still stop in time to avoid the rain.
In addition, many of the current rain gear are more advanced, maybe the umbrella pole is made of metal, but the umbrella with higher metal content is easier to attract lightning patronage, but it is easier to avoid lightning with pure plastic raincoats, but many people don't know this.
Finally, if you find that you have an ant crawling feeling in the thunderstorm, and the hair has stood up, it means that the thunder and lightning are likely to be coming, and you need to lie on the ground immediately at this time to avoid the attack of thunder and lightning, which is also one of the ways to avoid suspicion.
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When encountering a thunderstorm, when you are outside, you should pay attention to finding cover and taking shelter in the building in time, which is what you should do.
When thunder and lightning are combined, if there is nowhere to hide in the open field, you should try to find a low depression (such as a dirt pit) to hide, or immediately squat, feet together, arms and knees, head not low, try to reduce the height of the body. If you have conductive objects in your hands (such as shovels, metal rods and umbrellas), you should quickly throw them far away, and you must not run in the wilderness with these objects, otherwise you will become the target of lightning strikes.
Be especially careful not to stand under towering objects (e.g. flagpoles, trees, chimneys, poles) when encountering lightning, which are most susceptible to lightning strikes.
1. Do not stay on the high-rise platform during thunderstorms, do not enter isolated sheds, sentry boxes, etc. in outdoor open spaces, leave the water body as soon as possible, avoid fishing, playing and running on the beach and other activities, and do not play umbrellas with metal umbrella tips, so as not to become a prominent conductive target.
2. It is not advisable to take shelter from thunderstorms under big trees, if you have to do so, you must keep a distance of 5 meters from the trunk, squat and put your legs together.
3. If the body is numb and the hair stands up when the thunder and lightning are combined, it means that there will be a lightning strike, and you should quickly lie on the ground and take away the metal jewelry you are wearing.
4. When you see lightning outdoors and hear thunder within a few seconds, it means that you are in a dangerous environment near a thunderstorm, so you should stop walking, put your feet together and squat immediately, preferably using plastic rain gear, raincoats, etc.
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When you are outdoors during a thunderstorm, you must avoid sheltering under trees, and it is best to choose an open place to avoid being struck by lightning.
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When encountering thunderstorms, do not take shelter from the rain under big trees, do not enter isolated greenhouses and houses, do not stay on tall buildings, do not use umbrellas, and do not hold badminton rackets high.
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Try to go to open areas, away from trees, tall buildings, and billboards.
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In thunderstorming weather, it is not advisable to take shelter under large trees, metal car boxes, and near telephone poles or high-voltage electricity.
This is because when standing under a large tree, when a strong lightning current flows into the ground through the tree and spreads around, it will generate different voltages in different places, and the voltage difference between the two feet of the human body standing will cause injury, which is commonly known as stride voltage injury. If you have to take shelter from the rain under a tree, you must keep a distance of 3 meters from the trunk.
In additionWhen thunder strikes, it is forbidden to stand in an open fieldIf you are in an open area and do not have time to take shelter indoors, you should immediately put your hands on your knees, squat on the ground with your feet together, bend your body forward, your chest close to your knees, and look down at the ground, because your head is most vulnerable to lightning strikes. Do not use your hands on the ground, as this will increase the range of contact between your body and the ground, increasing the risk of lightning strikes.
During thunderstorms, pay attention to the terrain and landforms, do not stay on the top of mountains or high hills, and do not go near tall trees, telephone poles, chimneys, billboards and other sharp and isolated objects. Outdoor activities should be stopped immediately, and a place to take shelter from lightning should be found as soon as possible, and shelter in low-lying, dry or leeward houses or caves. However, it is not allowed to take refuge in low-rise buildings without lightning protection facilities such as wool sheds and guard boxes.
In addition, when lightning and thunder, wind and rain are combined, everyone should immediately turn off indoor televisions, cassette recorders, stereos, air conditioners and other electrical appliances to avoid electrical conduction. When thundering, it is safer to be in the room, do not stay under the electric light, and do not rely on the pillars, walls, doors and windows, so as to avoid accidents caused by induction electricity during thunder.
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1. When thunderstorm and lightning, do not dial and answer**, turn off the mobile phone, because the electromagnetic waves of the ** line and the mobile phone will introduce lightning and hurt people.
2. During thunderstorms and lightning, do not turn on TVs, computers, VCD players, etc., and unplug all power plugs to avoid hurting people and damaging electrical appliances.
3. Don't stand under the light bulb and don't take a shower.
4. Try not to open doors and windows to prevent lightning from hitting the room.
5. When you encounter thunder and lightning while riding in a car, do not stick your head and hands out of the window.
6. Do not pull the wire of the drying clothes and bedding to the window and door.
7. When lightning strikes, do not approach all power facilities, such as high-voltage wires and transformer appliances. Do not approach or touch any metal pipes, such as water pipes, heating pipes, sewer pipes, etc., during thunderstorming; Outdoor:
1. Do not use umbrellas with metal tips in open areas, and do not carry metal objects on your shoulders;
2. Do not run next to each other or hold hands in a thunderstorm, and keep a certain distance from each other.
3. When the thunderstorm is large, stay away from the trees, try not to run in stride, you can choose buildings to hide from the rain, but it is not appropriate to choose to hide from the rain in the car.
4. Do not wear wet clothes, hats, shoes, etc. to walk around during heavy thunderstorms. For sudden lightning, you should immediately squat down to reduce your height, and at the same time bring your feet together to reduce the harm caused by the stride voltage.
5. Try not to go out, if you must go out, it is best to wear rubber shoes and a raincoat, which can play an insulating role in lightning.
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Thunder and lightning is an extremely severe weather phenomenon, which will have a huge impact on the safety of people's lives and property. In the midst of thunderstorms, people need to take some measures to protect themselves. And when it comes to escaping this weather phenomenon, there are some places that should not be visited, so let's take a look at them.
First of all, people should try to avoid going outdoors in the open air. During thunderstorms, people are susceptible to lightning strikes if they are in open spaces, such as grassy areas and beaches. These places often don't have any shelter, exposing people to lightning hazards.
Therefore, people should choose a safe place to take refuge.
Second, people should avoid entering water sources as much as possible. Thunder and lightning weather can cause a strong electric field on the surface of the water, and if people are on the water, they are easily struck by lightning. Moreover, in thunderstorming weather, the conductivity between the water surface and the surrounding environment is strong, so once it is struck by lightning, it will lead to loss of personnel and property.
In addition, people should also avoid entering high places, such as mountain tops, high-rise buildings, and towers. High places are one of the most dangerous places during thunderstorms. Because lightning often chooses to land on the ground, and will choose a higher place as a landing point.
Once at height, people are more susceptible to lightning strikes.
Overall, thunder and lightning is a dangerous weather phenomenon that people must do to protect themselves. In this weather, people should avoid going into open places, water sources, and high places. Only in this way can people protect themselves from lightning strikes.
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Similar to the phenomenon of tip discharge, in rainy days, the earth and people form a conductor, because the surface density of the charge of the conductor is proportional to the curvature, the more protruding the place, the greater the curvature, and the more concentrated ground charge. In the open field, the position where the person standing was obviously very protruding, so that the electric charge was concentrated on the person.
In the event of a strong thunderstorm, try to avoid going out as much as possible, avoid open areas as much as possible, and do not stand under towering or metal objects such as electric poles, flagpoles, and tower cranes.
Common sense of thunderstorm safety.
When lightning is seen outdoors and thunder is heard within seconds, it is said that Oak is in danger of approaching a thunderstorm, and that he should stop all action and do so
1. Keep your head down, because your head is more susceptible to lightning strikes than other parts of your body;
2. Quickly take refuge in buildings protected by lightning protection facilities, or in various vehicles with metal roofs and shipyards with metal shells;
3. When thunder and lightning are combined, there is a feeling of ants crawling away outside the head, neck and hands, and the hair stands up, indicating that lightning strikes will occur, and you should rush to lie on the ground next to the void, and discard the metal jewelry, hairpins, necklaces, etc. worn on the body, which can reduce the risk of being struck by lightning;
4. If you see the high-voltage line broken by lightning outdoors, because there is a stepping voltage near the breakpoint of the high-voltage line, people who are nearby should not run, and should jump away with their feet together.
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Summary. During a thunderstorm, if there is a lightning rod nearby, it is recommended to avoid walking outdoors as much as possible to reduce the risk of being struck by lightning. If you must go out, please note the following:
During a thunderstorm, if there is a lightning rod nearby, it is recommended to avoid walking outdoors to reduce the risk of being struck by lightning. If you must go out, please pay attention to the following Huaikai rebates:
Find a safe place: Try to avoid staying in open places, high places, waterfront and other places that are prone to lightning strikes, and try to choose safe places such as tall buildings or closed cars. Avoid contact with metal objects:
When walking outdoors, avoid touching metal objects, such as umbrellas, iron rods, bicycles, etc., because metal is conductive and can easily attract lightning. Observe safety precautions: If you are unable to avoid a thunderstorm in time, please follow relevant safety precautions, such as keeping your distance, not moving alone on the stool, squatting down, and not lying on the ground.
Pay attention to the weather: If you notice that a thunderstorm is approaching, immediately return to the indoor silver code or find a safe place and do not wait for the thunder and lightning to come.
In short, in thunderstorms, avoid walking outdoors, choose a safe place to take shelter, and comply with relevant safety precautions, which can be closed to effectively reduce the risk of being struck by the sedan chair.
Is it okay to wear a raincoat to travel?
Wearing a raincoat can protect the body from rain to a certain extent, but it has less effect on lightning protection. Because raincoats are mostly made of materials such as plastic or rubber, these materials, although they have a good insulation effect on moisture, they have a certain conductivity to electric current, and their surfaces can also attract lightning. Therefore, wearing a raincoat does not completely guarantee the safety of the body, and it is still necessary to comply with lightning safety measures to reduce the risk of lightning injury.
Therefore, it is recommended to avoid outdoor activities as much as possible during thunderstorms, choose a safe place to shelter from the rain, and abide by lightning safety measures, such as not touching metal objects and not acting alone.
Compared to an umbrella raincoat will be better.
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