Lightning protection and flood prevention tabloid

1. When going out in a thunderstorm, you can squat down, reduce the height as much as possible, and put your feet together at the same time to reduce the harm caused by stepping voltage. Because when lightning strikes the ground, it will gradually release energy around along the surface. At this time, due to the difference of potential difference, a certain voltage may be generated between the front foot and the back foot of the walking person.

Don't shelter from the rain under the big tree. Because when it rains, the wet branches of the tree are equivalent to a lightning protection device. If you hold a tree with your hand, it's like touching a lightning rod with your hand. So it's best to stay 5 meters away from the tree when it thunders.

3. When it rains, don't stay near the water (rivers, lakes, oceans, ponds, canals, etc.). ) and depression. You should quickly take shelter from the rain in a dry house nearby. If you can't find a house in the mountains, you can hide under rocks or in caves.

4. Don't stay in the thunderstorm with metal objects, because metal objects are conductive substances, and thunderstorm weather can sometimes play a role in attracting thunder. Carry-on metal objects should be temporarily placed 5 meters away, and then picked up after the lightning stops.

5. Don't touch or get close to lightning protection grounding wires, water pipes, electrical grounding wires, tree trunks and other objects that may be charged due to lightning strike, so as to prevent contact voltage, lightning strike and side attack.

6. In thunderstorm and rainstorm weather, it is best not to answer and call the mobile phone outdoors, because mobile phone waves can also cause thunder.

7. When going out in thunderstorm and rainstorm, it is best to wear rubber shoes, which can play an insulating role.

Indoor lightning protection

1. When it thunders, the first thing to do is to close the doors and windows to prevent lightning from hitting the room directly and spherical lightning from floating into the room.

2. In thunderstorm weather, stay away from metal water pipes and sewer pipes connected to the roof indoors.

3. In thunderstorm weather, try not to make or answer the phone, and don't use your mobile phone to surf the Internet. Unplug the power supply, telephone line, TV feeder and other metal wires that may introduce lightning. The scientific and safe way is to install power arrester on power line, telephone arrester on telephone line, antenna and feeder arrester on antenna and feeder and make grounding. Keep the house dry. The house leaks rain, so it should be repaired in time.

4. The insulator iron foot of incoming power cord should be grounded, and the three-phase socket should be grounded.

5. Don't pull the wire for drying clothes and bedding to the window or door, in case the wire leads to lightning.

6. Don't stay in shelters, cabins and houses for a long time, pay attention to avoid wires, don't stand under light bulbs, and it's best to cut off power or use electrical appliances.

How to avoid danger when the house is flooded?

This situation is generally aimed at residents who can't move in low-lying areas in flooded areas, and their houses are often easily flooded or besieged. If this happens, the usual effective measures are: first, arrange for family members to move to the roof to try to comfort and stabilize their emotions; Second, try to send a distress signal and get in touch with the outside world as soon as possible in order to get timely rescue; The third is to use floating objects such as bamboo and wood to escort family members to nearby high-rise buildings or safer places.

■ Warning water level: In flood season, river floods generally flood the beach, dikes reach a certain depth, and dikes or flood control projects may be in danger, so it is necessary to be alert to the warning water level. When it reaches this water level, it will start to enter the state of flood prevention and alert, and we should pay close attention to the development and changes of water conditions, work conditions and dangerous situations.

■ How to catch and protect piping: The principle of piping treatment should be to prevent sand from coming out of piping and leave a way out for water seepage.

■ Flood season refers to the period when the water level rises regularly due to seasonal precipitation and melting ice and snow in the basin.

■ Flood season, flood season and flood control: The flood season that is easy to cause disasters is often called flood season.

■ The difference between waterlogging and flood is that waterlogging is caused by excessive local precipitation, while flood is caused by the entry of guest water.

How to escape from the flood?

In flooded areas with a water depth of more than 0.7 meters to 2 meters, or residents who are difficult to live because of the large flood velocity, they should take refuge measures in time. Because asylum is mainly a large-scale and organized asylum, we should pay attention to:

First, it is necessary to make the evacuation route a household name, so that every refugee can find out where the flood flooded first and then, so as to choose the best route and avoid the passivity of "people flooding".

Second, we must recognize the road signs. In those flood-prone areas, the government has built refuge roads. Generally speaking, this kind of road should be a one-way street to reduce traffic chaos and congestion.

Third, keep a calm mood. Mastering "disaster psychology" is actually a kind of learning.