Which of the following methods is the correct lightning protection method when encountering a thunderstorm outdoors? Explain. A binjiang b cheli c qianggenxia

In case of outdoor thunderstorm, choose B car for lightning protection. The metal shell of the car can produce electrostatic shielding protection.

Lightning usually hits the spire of the tallest outdoor object, so isolated tall trees or buildings are often the most vulnerable to lightning. When there is thunder and lightning, people should abide by the following rules outdoors to ensure safety.

1. It is not advisable to enter the isolation shed or shed without lightning protection measures to avoid rain. You should quickly hide in a building protected by lightning protection facilities, or in a vehicle with a metal roof and a cabin with a metal shell.

2. In case of sudden thunderstorm, you can squat down, reduce the height, and put your feet together at the same time to reduce the damage caused by stepping voltage. Because when lightning strikes the ground, it will gradually release energy 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 take shelter from the rain under the big tree. Because after the rain, the wet branches of the tree are equivalent to a lightning protection device. If you hold a tree with your hand, it's like holding a lightning rod with your hand. It is best to stay 5 meters away from the tree when it thunders.

4. Don't stay near water bodies (rivers, lakes, oceans, ponds, canals, etc.). ) or depression, go to a dry house nearby to shelter from the rain. If you can't find a house in the mountains, you can take shelter under rocks or caves.

5, don't stay in the thunderstorm with metal objects, because metal objects are conductive substances, and sometimes they can play the role of lightning in thunderstorm weather. The metal objects carried with you should be temporarily placed 5 meters away, and then picked up after the lightning activity stops.

6. 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.

7. In thunderstorm weather, it is best not to answer and call the mobile phone outdoors, because the electromagnetic wave of the mobile phone can also cause thunder. G, thunderstorm weather, it is best to wear rubber shoes, can play the role of heat preservation.

8, don't stand on the top of the mountain, the roof or other objects close to high conductivity.

9. Don't swim or engage in other water sports. Outdoor ball games are not suitable. Leave the water and other open spaces and find a place to hide.

10, when you can't hide in a building with lightning protection facilities in the wilderness, you should stay away from trees and masts.