Recently, thunderstorms are frequent, thunder is roaring, and heavy rains will follow. People and animals are hit by lightning from time to time every year. In order to enhance the ability of lightning protection and self-protection, introduce some common sense of lightning protection and electricity safety to residents and friends. The following is what I arranged, I hope you like it!

Lightning should be a natural phenomenon, but if it is not controlled and prevented, it can also be regarded as a natural disaster, which will cause casualties and property losses. Although it is an irresistible natural factor, its harm and consequences are also very serious, but strengthening prevention and control can also be avoided. Therefore, before the summer thunderstorm season comes, it is very important and necessary to strengthen the study of lightning-related safety knowledge in order to make corresponding safety precautions.

First, the generation of lightning

When dust, ice crystals and other substances in the air roll in the cloud, they are positively charged and negatively charged through some complicated processes. Protrusions and metals on the ground will induce positive charges. With the gradual enhancement of the electric field, Lei Yun will form downward guidance, and objects on the ground will form upward backflow. When they meet, they will form a discharge to the ground. This is easy to cause lightning disasters.

Second, the main characteristics of lightning

Large impulse current, short time, large lightning current gradient and high impulse voltage: the alternating magnetic field generated by powerful current can induce hundreds of millions of volts.

Third, the damage caused by lightning.

When lightning strikes a building directly, the strong lightning current causes the water in the building to be heated, vaporized and expanded, resulting in huge mechanical force, which leads to the building burning or explosion. In addition, when lightning strikes the lightning receptor and the current discharges to the earth along the down conductor, the potential to the earth rises at this time, and it may jump to nearby objects, which is called lightning "counterattack", thus causing fire or personal injury. Sensing the on-line conductor will have a strong destructive impact on the equipment. When the lightning is close to the overhead pipeline, the high-voltage shock wave will invade the room along the overhead pipeline, leading to the introduction of large current, which may cause equipment damage or personal injury. If there are flammable materials nearby, it is easy to cause a fire.

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

1. In case of lightning, turn off indoor appliances such as TV, stereo, DVD player and computer, and disconnect the power supply and signal line.

2. When lightning strikes, don't touch water pipes, barbed wire, metal doors and windows, external walls of buildings, and stay away from live devices 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 get close to the untouchable metal water pipes, metal doors and windows and other live devices.

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 near tall buildings such as towers; Don't take shelter from the rain beside the 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, iron utensils, shovels with metal poles, etc., you should quickly put them away.

20. indoors, don't get close to heating pipes and water pipes; Don't continue watching or listening to TV and radio, especially those equipped with outdoor antenna. Cut off the power supply, disconnect the outdoor antenna from the TV and connect the 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. "People also: