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1. The damage of lightning to the human body has the direct effect of electric current, overpressure or power, and high temperature. When a person is hit by lightning, the current quickly passes through the human body, which can lead to the arrest of heartbeat and breathing, and the lack of oxygen in the brain tissue and death. In addition, lightning strikes produce sparks, which can also cause different degrees of burns.
Lightning injuries can also cause dendritic lightning strikes, epidermal peeling, intracutaneous hemorrhage, and rupture of eardrums or internal organs.
2. The average current of lightning is 30,000 amperes, and the maximum current can reach 300,000 amperes. The voltage of lightning is high, about 100 million to 1 billion volts. A moderate thunderstorm can reach 10 million watts, which is equivalent to the output of a small nuclear power plant.
3. The lightning current generated when lightning occurs is the main source of damage, and its hazards include direct lightning strikes, induction lightning strikes and intrusive 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. 3-1. Parts 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.
3-2. How 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.
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Q: Can I say don't stand under a tree?
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The voltage generated by each thunderstorm can be as high as tens of thousands of volts, or even hundreds of thousands of volts;
The charge of the earth is as high as 500,000 coulombs or more, and the charge contained in the ridge of the entire surface of the earth is negative, so the lightning cavity is easy to contact the surface of the earth, and a channel current loop is formed between the lightning and the ground, the channel current is extremely large, the average can reach tens of thousands of amperes, and the diameter of the channel is very small, only a few square centimeters to dozens of square centimeters, so that the temperature of the air column when lightning is as high as more than 20,000 degrees Celsius, so the common lightning color is incandescent white;
The basic characteristics of lightning: the average current of lightning is 30 thousand amperes, the maximum current can reach 300 thousand amperes, and the voltage of lightning is about 100 million volts to one billion volts.
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Thunderstorm clouds have negative charge, the ground has positive charge, and they can produce electric current when they attract each other, and the appearance of bright light is lightning, and when lightning occurs, it can generate a lot of heat, causing the surrounding air to expand sharply and make a huge roar, which is - thunder and lightning. The hazards of lightning are: It can lead to ** disaster; It will make people's heart, respiratory arrest, brain tissue lack of oxygen and die.
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Lightning is a phenomenon in which positively charged clouds and negatively charged clouds in the sky release electricity when they are very close to each other because of a strong electric field. Lightning can damage buildings on the ground and destroy trees and cause forest fires.
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Thunder and lightning are caused by the collision of two dark clouds in the sky. First, when lightning occurs, if there is an airplane passing in the sky, it is very likely to cause damage to the aircraft and cause a safety accident. Second, lightning is particularly lethal and has a high chance of smashing buildings.
Third, if you use a mobile phone in a lightning storm, it is very likely to lead lightning, and it is very likely that you will die on the spot if you are struck by lightning.
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The voltage generated by each thunderstorm can be as high as tens of thousands of volts, or even hundreds of thousands of volts; However, the charge of the earth is as high as more than 500,000 coulombs, and the charge contained in the entire surface of the earth is negative, so the lightning is easy to contact the surface of the earth, and a channel current loop is formed between the lightning and the ground, which is extremely current, and the average can reach tens of thousands of amperes. Moreover, the diameter of the channel is very small, only a few square centimeters to tens of square centimeters, so that the temperature of the air column when lightning is as high as more than 20,000 degrees Celsius, so the common lightning color is blazing white.
Basic characteristics of lightning:
The average current of lightning is 30 kA, and the maximum current can reach 300 kA (the maximum amplitude of lightning current observed so far is 430 kA); The voltage of lightning is about 100 million volts to 1 billion volts (the potential difference between the two ends of the lightning channel can be).
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The destructive effects of lightning can basically be divided into three categories: (1) Direct lightning The phenomenon of direct discharge of thunderclouds to other objects on buildings or ground is called direct lightning. When the thundercloud is discharged, it causes a large lightning current, which can reach hundreds of kiloamperes, which produces a great destructive effect.
When a lightning current passes through an object that is being struck by lightning, a large amount is generated.
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Hello, happy to answer for you. Orange warning signal. The orange warning signal is a strong thunderstorm brigade whispering.
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