Lightning is a breakdown discharge phenomenon that occurs in the clouds of thunderstorm clouds (cumulonimbus), between cloud and ground, and between cloud and air, and is often accompanied by strong flashes and rumbling thunder. Lightning caused by physical effects such as strong current, hot high temperature, violent shock wave, drastic electromagnetic field and strong electromagnetic radiation makes it a huge destructive effect in an instant. Humans are currently unable to control and prevent the generation of lightning. Lightning can cause casualties, interrupt power supply and distribution systems, communication equipment, and computer information systems, cause forest fires, destroy buildings, cause burning and even explosions in storage, oil refineries, and oil fields, endangering people's property and personal safety.
1. How to prevent lightning outdoors
They should quickly hide into buildings protected by lightning protection facilities. The car is an ideal place to avoid lightning strikes.
Keep away from sharp, isolated objects such as trees, telephone poles, and chimneys. Do not enter low-rise buildings such as isolated sheds and sentry boxes.
If you can't find a suitable lightning protection place, you should find a low-lying place, squat down, keep your feet together, put your hands on your knees, and bend forward.
Umbrellas should not be used in open areas, and metal tools, badminton rackets, golf clubs and other items should not be carried on the shoulders.
Do not swim or engage in other water sports, outdoor sports, climbing, riding and other sports are not suitable. Leave the water and other open spaces as soon as possible, and find places with lightning protection facilities to avoid.
It is not advisable to drive a motorcycle, ride a bicycle, and refrain from running when thunder.
In the unlikely event of a lightning strike, fellow travellers should call the police for help in a timely manner, and do rescue work for them at the same time.
Second, how to prevent lightning indoors
Close doors and windows away from doors, windows, balconies, and exterior walls.
Do not approach or touch any metal pipelines indoors, including water pipes, heating pipes, gas pipes, etc.
Try not to use household appliances in rooms without lightning protection facilities, including televisions, computers, cable phones, active radios, refrigerators, washing machines, microwave ovens, etc. It is recommended to unplug all power plugs.
Do not bathe with solar water heaters in thunderstorms.
In the event of a lightning strike fire, you should quickly cut off the power and quickly dial "119" or "110" to call the police for help.
Lightning protection facilities shall be tested regularly.
3. How to give first aid to lightning burns
The thermal effect of current during lightning strikes can cause electrical burns and char the human body.
If the clothing of the lightning striker catches fire, splash water on the injured person, or wrap the injured person with a thick coat or blanket to extinguish the flame.
For those who have stopped breathing and heartbeat, do cardiopulmonary resuscitation first, and then deal with burn wounds.
Cool the wounded area with cold water, and then cover the dressing. If there is no dressing, wrap it with a clean cloth, clothes, etc.
Transfer to a local hospital in time, infusion should be taken during transit, and anti-shock measures should be taken.
4. How to give first aid to "fake death" of lightning strike
The phenomenon that the heart of a wounded person who is struck by lightning suddenly stops beating and breathing suddenly stops is called a "fake death" phenomenon. At this time, it is necessary to organize on-site rescue immediately, so that the injured person lies on the ground for artificial respiration. At the same time, the emergency center should be called immediately, and professional personnel should effectively handle and rescue the injured.
5. Precautions for artificial respiration
Push the forehead by hand so that the head leans back as far as possible, while using the other arm to lift the neck forward.
Keep the trachea unobstructed: take the foreign body in the outlet and remove the secretion.
The squeezing force should be suitable, not too violent.
The squeezing and relaxation times are approximately equal, and the squeezing is proportional to the number of artificial respirations, 15: 2 for adults and 5: 1 for children.
6. How can rural TV be protected from lightning strikes
TV, as the most important household appliance in modern society, has been popularized in the vast rural areas, and has become a window for the vast number of farmers to understand the outside world. The vast rural areas, especially the remote rural areas, are not economically developed, far from towns, and do not have perfect lightning protection facilities. The antenna and the "pot lid" that have been raised upright have become Thunderbolt's pets. When receiving the TV signal, they have also become a hidden safety hazard. Because it is usually installed high on the roof, it is more vulnerable to lightning strikes in thunderstorms. How to ensure the safety of TV for the majority of farmers?
First of all, farmer friends should develop a good habit of not turning off the power while watching TV. To unplug the TV power supply, one is to prevent TV air consumption and extend life. ; The second is to prevent thunder and lightning from entering when no one is at home.
The second is to handle the antenna connector. After the antenna head is unplugged, it should be buried deep into the ground, away from people's activities, and should not be tied to metal objects such as radiators.
Again, if possible, consider installing lightning protection devices, power supply lightning arresters, etc. for the TV to keep the TV within the protection range of the lightning rod. For specific installation methods, please consult the local lightning protection center.
Fourth, pay attention to the purchase of TV with lightning protection function, which can reduce the lightning disaster to a certain extent.
7. The specific meaning of lightning warning signals:
Lightning disaster warning signals Lightning warning signals are divided into three levels, which are represented in yellow, orange, and red, respectively.
(1) Lightning yellow warning signal standard: lightning activity may occur within 6 hours, which may cause lightning disasters.
Defense Guide:
1. The government and relevant departments do lightning protection work in accordance with their duties;
2. Pay close attention to the weather and try to avoid outdoor activities.
(2) Thunderbolt orange warning signal standard: There is a high probability of lightning activity occurring within 2 hours, or it has been affected by lightning activity and may continue, and there is a greater possibility of lightning disasters.
Defense Guide:
1. The government and relevant departments implement lightning protection emergency measures in accordance with their responsibilities;
2. Personnel should stay indoors and close doors and windows;
3. Outdoor personnel should hide in buildings or cars with lightning protection facilities;
4. Cut off the dangerous power supply, do not avoid rain under trees, poles, or tower cranes;
5. Do not play umbrellas in open fields, and do not carry agricultural tools, badminton rackets, golf clubs, etc. on your shoulders.
(3) Lightning red warning signal standard: The possibility of lightning activity occurring within 2 hours is very high, or there has been strong lightning activity, which may continue, and the possibility of lightning disaster accidents is very high.
Defense Guide:
1. The government and relevant departments do a good job in lightning protection and emergency rescue in accordance with their duties;
2. Personnel should try to hide into buildings or cars with lightning protection facilities, and close doors and windows;
3. Do not touch antennas, water pipes, barbed wire, metal doors and windows, external walls of buildings, and stay away from live equipment such as wires and other similar metal devices;
4. Try not to use TV, telephone and other electrical appliances without lightning protection device or incomplete lightning protection device;
5. Pay close attention to the release of lightning warning information.
1. How to prevent lightning outdoors
They should quickly hide into buildings protected by lightning protection facilities. The car is an ideal place to avoid lightning strikes.
Keep away from sharp, isolated objects such as trees, telephone poles, and chimneys. Do not enter low-rise buildings such as isolated sheds and sentry boxes.
If you can't find a suitable lightning protection place, you should find a low-lying place, squat down, keep your feet together, put your hands on your knees, and bend forward.
Umbrellas should not be used in open areas, and metal tools, badminton rackets, golf clubs and other items should not be carried on the shoulders.
Do not swim or engage in other water sports, outdoor sports, climbing, riding and other sports are not suitable. Leave the water and other open spaces as soon as possible, and find places with lightning protection facilities to avoid.
It is not advisable to drive a motorcycle, ride a bicycle, and refrain from running when thunder.
In the unlikely event of a lightning strike, fellow travellers should call the police for help in a timely manner, and do rescue work for them at the same time.
Second, how to prevent lightning indoors
Close doors and windows away from doors, windows, balconies, and exterior walls.
Do not approach or touch any metal pipelines indoors, including water pipes, heating pipes, gas pipes, etc.
Try not to use household appliances in rooms without lightning protection facilities, including televisions, computers, cable phones, active radios, refrigerators, washing machines, microwave ovens, etc. It is recommended to unplug all power plugs.
Do not bathe with solar water heaters in thunderstorms.
In the event of a lightning strike fire, you should quickly cut off the power and quickly dial "119" or "110" to call the police for help.
Lightning protection facilities shall be tested regularly.
3. How to give first aid to lightning burns
The thermal effect of current during lightning strikes can cause electrical burns and char the human body.
If the clothing of the lightning striker catches fire, splash water on the injured person, or wrap the injured person with a thick coat or blanket to extinguish the flame.
For those who have stopped breathing and heartbeat, do cardiopulmonary resuscitation first, and then deal with burn wounds.
Cool the wounded area with cold water, and then cover the dressing. If there is no dressing, wrap it with a clean cloth, clothes, etc.
Transfer to a local hospital in time, infusion should be taken during transit, and anti-shock measures should be taken.
4. How to give first aid to "fake death" of lightning strike
The phenomenon that the heart of a wounded person who is struck by lightning suddenly stops beating and breathing suddenly stops is called a "fake death" phenomenon. At this time, it is necessary to organize on-site rescue immediately, so that the injured person lies on the ground for artificial respiration. At the same time, the emergency center should be called immediately, and professional personnel should effectively handle and rescue the injured.
5. Precautions for artificial respiration
Push the forehead by hand so that the head leans back as far as possible, while using the other arm to lift the neck forward.
Keep the trachea unobstructed: take the foreign body in the outlet and remove the secretion.
The squeezing force should be suitable, not too violent.
The squeezing and relaxation times are approximately equal, and the squeezing is proportional to the number of artificial respirations, 15: 2 for adults and 5: 1 for children.
6. How can rural TV be protected from lightning strikes
TV, as the most important household appliance in modern society, has been popularized in the vast rural areas, and has become a window for the vast number of farmers to understand the outside world. The vast rural areas, especially the remote rural areas, are not economically developed, far from towns, and do not have perfect lightning protection facilities. The antenna and the "pot lid" that have been raised upright have become Thunderbolt's pets. When receiving the TV signal, they have also become a hidden safety hazard. Because it is usually installed high on the roof, it is more vulnerable to lightning strikes in thunderstorms. How to ensure the safety of TV for the majority of farmers?
First of all, farmer friends should develop a good habit of not turning off the power while watching TV. To unplug the TV power supply, one is to prevent TV air consumption and extend life. ; The second is to prevent thunder and lightning from entering when no one is at home.
The second is to handle the antenna connector. After the antenna head is unplugged, it should be buried deep into the ground, away from people's activities, and should not be tied to metal objects such as radiators.
Again, if possible, consider installing lightning protection devices, power supply lightning arresters, etc. for the TV to keep the TV within the protection range of the lightning rod. For specific installation methods, please consult the local lightning protection center.
Fourth, pay attention to the purchase of TV with lightning protection function, which can reduce the lightning disaster to a certain extent.
7. The specific meaning of lightning warning signals:
Lightning disaster warning signals Lightning warning signals are divided into three levels, which are represented in yellow, orange, and red, respectively.
(1) Lightning yellow warning signal standard: lightning activity may occur within 6 hours, which may cause lightning disasters.
Defense Guide:
1. The government and relevant departments do lightning protection work in accordance with their duties;
2. Pay close attention to the weather and try to avoid outdoor activities.
(2) Thunderbolt orange warning signal standard: There is a high probability of lightning activity occurring within 2 hours, or it has been affected by lightning activity and may continue, and there is a greater possibility of lightning disasters.
Defense Guide:
1. The government and relevant departments implement lightning protection emergency measures in accordance with their responsibilities;
2. Personnel should stay indoors and close doors and windows;
3. Outdoor personnel should hide in buildings or cars with lightning protection facilities;
4. Cut off the dangerous power supply, do not avoid rain under trees, poles, or tower cranes;
5. Do not play umbrellas in open fields, and do not carry agricultural tools, badminton rackets, golf clubs, etc. on your shoulders.
(3) Lightning red warning signal standard: The possibility of lightning activity occurring within 2 hours is very high, or there has been strong lightning activity, which may continue, and the possibility of lightning disaster accidents is very high.
Defense Guide:
1. The government and relevant departments do a good job in lightning protection and emergency rescue in accordance with their duties;
2. Personnel should try to hide into buildings or cars with lightning protection facilities, and close doors and windows;
3. Do not touch antennas, water pipes, barbed wire, metal doors and windows, external walls of buildings, and stay away from live equipment such as wires and other similar metal devices;
4. Try not to use TV, telephone and other electrical appliances without lightning protection device or incomplete lightning protection device;
5. Pay close attention to the release of lightning warning information.
Shenzhen You&My Electronic Technology Co., Ltd , https://www.youmyledlight.com