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Remember the key points of lightning protection in summer

Summer is a high incidence season of thunderstorms. What if there is thunderstorm outside? Is it safe to hide indoors? In the season of high thunderstorm in summer, how to protect against lightning?
First: indoor lightning protection
Generally, there are three main ways for lightning to invade the room: one is from the power line; The second is to invade from signal lines (such as communication lines, TV antennas and computer networks); The third is the counterattack formed by lightning strikes on the earth. Therefore, the lightning rod on the building can only solve the lightning protection problem of the building itself, but can not protect all kinds of electrical appliances connected to the power supply, especially televisions, telephones and computers with signal receiving function from lightning. It is very necessary for people to pay special attention to lightning protection equipment, otherwise it may cause lightning damage to families. Specifically, indoor lightning protection in summer should pay attention to the following points:
1. In case of thunder and lightning, do not call mobile phone or wired phone, but after the lightning, so as to prevent the lightning wave from invading along the communication signal, resulting in casualties. When indoors, cut off the electrical equipment that can not be used temporarily, do not get close to the metal parts such as the furnace, and do not stand barefoot on the mud or cement ground.
2. In case of lightning, the TV and computer shall be turned off, and the outdoor antenna of the TV shall not be used. If the lightning hits the TV antenna, the lightning will be transmitted indoors along the cable, threatening the safety of electrical appliances and personnel.
3. When it thunders, don’t open the window, don’t put your head or hands out of the door, and don’t touch the metal frame of the window with your hands to prevent lightning.
4. Try to turn off all kinds of household appliances and unplug the power plug to prevent lightning from invading from the power line, causing fire or electric shock casualties.
Second: outdoor lightning protection
When the sky is suddenly dark and accompanied by lightning, you should hide in a sheltered and safe place as soon as possible. Buildings equipped with lightning rods or various vehicles with metal roofs can be used as lightning protection places. If your clothes are wet, don’t get close to wet walls. In case of Thunderstorm in the field, do not stand under isolated high-rise buildings, poles, chimneys, corner eaves, big trees, towers and billboards, and do not stay near small buildings without lightning protection facilities, garages, sheds, iron fences, metal clotheslines, overhead metal bodies and railway tracks. Don’t swim or row in the river.
During thunderstorm, do not ride a bicycle, motorcycle or tractor, and do not carry metal objects on your shoulders. In case of lightning, don’t crowd several people, and don’t touch each other to prevent current conduction. Don’t use your cell phone outdoors.
Third: lightning protection in vehicle
The sky is full of lightning and thunder. What should you do when you are driving? First of all, don’t park your car in an open space or on a high ground, under a tree or under a tall chimney. It’s easy to cause thunder. Secondly, don’t forget to take back the car antenna, and remember to turn off the engine, radio and other equipment. Third, don’t get off easily and close the door and window.
Fourth: on site first aid of lightning strike
Artificial respiration and external chest cardiac compression can be used for first aid. If you can’t find a suitable lightning protection place, you should try to reduce the center of gravity and the contact area between the human body and the ground. You can squat down, put your feet together, put your hands on your knees and bend forward. If you put on a raincoat, the lightning protection effect is better.


Post time: Feb-25-2022