Lightning protection theme class meeting lesson plan

In your long study career, you must have participated in theme class meetings, right? The theme class meeting was lively and lively, with compact arrangements and a harmonious atmosphere. I believe that many friends need a good planning content for the theme class meeting. Below is the lesson plan for the lightning protection theme class meeting that I compiled for your reference. I hope it can help friends in need. Lesson Plan for Lightning Protection Theme Class Meeting 1

1. Things to pay attention to to prevent electric shock:

1. Buy qualified electrical appliances.

2. Do not touch the power switch with wet hands.

3. If indoor lights or other electrical appliances are damaged, please find someone to repair or replace them in time.

4. Do not touch the damaged wires or damaged areas that have been connected to the power supply.

5. Do not connect random wires or use high-power electrical appliances in the dormitory. It is strictly forbidden to place live sockets on the bed.

6. It is forbidden to repair electrical appliances on wet floors. When you find a "thunderbolt" spark sound, turn off the power immediately to prevent electric shock.

2. First aid principles for electric shock:

1. When someone is found to have received an electric shock, you should immediately cut off the power supply, pull down the switch, or use non-conductive bamboo or wooden sticks to connect the conductor to the Separate the person who received the electric shock, and do not touch the person who received the electric shock before the power supply is cut off or the person who received the electric shock is not disconnected from the power supply;

2. For those who have stopped breathing and heartbeat, mouth-to-mouth artificial respiration and cardiothoracic surgery should be performed immediately Squeeze until breathing and heartbeat return.

3. While rescuing on the spot, call medical staff or call "120" for help as soon as possible.

Lightning protection education

1. When a thunderstorm comes, try to take shelter indoors and close doors and windows; turn off the power of TVs, electric fans and other electrical appliances, do not make phone calls, and do not Close to metal pipes such as radiators and doors and windows that are easily struck by lightning.

2. Do not use the shower head when there is thunder and lightning, because the huge lightning will hit the person taking a shower along the water flow.

3. The car is also an ideal place to avoid lightning strikes. Even if lightning hits the car, it will rarely hurt anyone.

4. Don’t fly a kite in a thunderstorm, as you are likely to be struck by lightning.

6. Do not hold an umbrella in the wilderness, or hold aloft a badminton racket, golf club, hoe, etc.

7. Don’t stay by the water, let alone wash clothes, fish, swim or play by the river.

8. Don’t run fast on the road during thunderstorms.

9. Avoid all objects that are easily conductive, such as metal, wet animals and plants, and do not wear wet clothes. When putting a plastic sheet over your head to protect yourself from the rain, you should avoid pocketing water.

10. Do not take shelter from thunderstorms under boulders, cliffs, or at the entrance of caves. When electric current passes through these places, arcs will be generated, which can injure people. If the cave is deep, try to hide in it.

11. Don’t hide in an isolated hut in the wilderness.

12. Leave the highlands and do not stay under isolated big trees, under the chimneys of tall buildings, or on high hills.

13. If you are in the wild and have nowhere to hide, squat down immediately when thunder and lightning strikes, put your feet together, hug your knees with your arms, and bend your head down to minimize the size of your body and the grounding area. If you have metal objects in your hands, such as umbrellas with metal poles, iron utensils, shovels, etc., you should quickly put them far away.

14. If you feel like ants are crawling on your head, neck, and hands during thunder and lightning, and your hair stands on end, it means a lightning strike is about to occur. You should lie down on the ground quickly to reduce the risk of lightning strikes. , and remove the metal jewelry, hairpins, necklaces, etc. worn on the body.

15. If you hear thunder a short time after seeing lightning outdoors, it means you are very close to the place where the thunder and lightning occurred. At this time, you should stop walking, put your feet together and squat down immediately. Do not interact with others. Pull together.

16. If you see a high-voltage line broken by lightning while outdoors, you should be more vigilant, because you may be shocked if you step near a broken high-voltage line. At this time, do not run, but should Put your feet together and jump to safety. Lesson plan for lightning protection theme class meeting 2

1. The generation of lightning

When dust, ice crystals and other substances in the air roll and move in the clouds, they go through some complex processes to separate them. With positive and negative charges. Protruding objects and metals on the ground will induce positive charges. As the electric field gradually increases, thunderclouds will form a downward leader, and objects on the ground will form an upward reflow. When the two meet, they will form a discharge to the ground. This can easily cause lightning disasters.

2. The main characteristics of lightning

The impact current is large, the time is short, the lightning current change gradient is large, and the impact voltage is high: the alternating magnetic field generated by the powerful current can induce a voltage of Up to hundreds of millions of volts.

3. Damage caused by lightning

When lightning strikes a building directly, the strong lightning current causes the water in the building (structure) to heat, vaporize and expand, resulting in a large amount of damage. Mechanical forces that cause buildings to burn or explode.

In addition, when lightning strikes the air-termination device and the current flows to the earth along the down conductor, the potential to the ground increases and may jump to nearby objects, which is called lightning "counterattack", resulting in fire or personal injury. casualties. Sensing the connected wires will cause strong damage to the equipment. When lightning approaches an overhead pipeline, the high-voltage shock wave will invade the room along the overhead pipeline, causing high current to be introduced, which may cause equipment damage or personal injury or death. If there are combustible materials nearby, it can easily cause a fire.

IV. Indoor lightning protection

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, the lightning will It is transmitted indoors along the cables, threatening the safety of electrical appliances and people.

2. Turn off all types of household appliances as much as possible and unplug all power plugs to prevent lightning from intruding from the power cord, causing fire or electric shock casualties.

3. Do not touch or get close to metal water pipes and water pipes connected to the roof, and do not stand under electric lights. Try not to use telephones or mobile phones to prevent lightning waves from invading along communication signal lines and causing danger.

4. Close doors and windows. When there is thunder, do not open windows or put your head or hands out of the window. Ball mines are more frequent in Guangdong Province. For buildings with reinforced concrete frame structures, generally closing doors and windows can prevent the intrusion of side mines and ball mines.

5. Do not participate in sports activities outdoors, such as running, playing ball, swimming, etc.

6. It is not advisable to use the shower head to take a shower. This is mainly because if a building is struck directly by lightning, a huge lightning current will flow into the ground along the building's exterior wall and water supply pipes. The lightning current may follow the water flow and cause shower users to be injured or killed by lightning strikes. At the same time, do not touch metal pipes such as water pipes and gas pipes.

5. Outdoor lightning protection

1. It is best to enter the nearest building with good lightning protection device. This is the safest. Never enter small sheds or straw sheds in crop fields, as they are prone to lightning strikes for shelter from thunderstorms.

2. Stay away from tall chimneys, iron towers, telephone poles and other objects, otherwise it will be very dangerous.

3. When it is thundering or raining, be careful not to use a metal frame umbrella or lift long objects; do not ride a motorcycle or bicycle. You can hide in a car with a metal body. Once the car is struck by lightning, the metal will conduct electricity into the ground.

4. Don’t panic or run. It’s best to put your feet together and squat on the spot with your hands and knees. The lower the better.

5. It is not advisable to hide under a big tree. When a strong lightning current flows into the ground through a large tree and spreads around, it will generate different voltages in different places, creating a step voltage between the two feet.

6. It is not advisable to go outdoors to collect clothes dried on wires.

Students, after today’s study, the teacher also hopes that through this lightning protection theme class meeting, students will know the importance of lightning protection, and be able to apply what they have learned in daily work, study, and life, and do A student who knows how to protect himself.