Every year from June to August is the high incidence of lightning disasters. Recently, lightning accidents occurred in Shenzhen, Shijiazhuang, and Shanghai. Even more, we rang the lightning alarm.
At present, 80% of lightning disasters are caused by indirect lightning strikes that cause damage to indoor equipment. The main reason is not paying enough attention to internal lightning protection measures. Similar to the security responsible persons of the electronic systems such as computer networks, communications, and control systems, it is necessary to pay more attention to protection against indirect lightning strikes. Song Haiyan, director of the Beijing Lightning Protection Device Safety Testing Center, reminded that lightning protection is a systematic project, and both “double insurance” for external lightning protection and internal lightning protection are indispensable.
The first aid instructor of the Red Cross Society of Xicheng District in Beijing, Cui Shibao, said that he must first understand the weather conditions before traveling and try to avoid thunderstorms. Especially when climbing at this time, in addition to possible lightning strikes, you may also encounter flash floods or mudslides.
“The most important thing for lightning protection is to avoid it.” Song Haiyan said that when there is a thunderstorm in the outdoors, all ongoing water sports such as swimming, boating and fishing need to be terminated immediately because of the high chance of catching on the surface of the water and they must stop playing basketball immediately. The most important thing for playing football and other outdoor sports is to find the nearest building to avoid lightning. It is best to have a lightning protection device. Never stop under a big tree, beside a metal tower, or beside a metal to avoid rain. , isolated objects. “Thunderstorms are all high-level discharges.” If you are experiencing thunderstorms in a lush forest, you must quickly search for caves or depressions, stay away from the trees as far as possible, reduce your height, and prefer to rain, and not leave yourself in an open space. High point position to prevent lightning strikes.
In recent summers, visitors to the mountains and mountains in the suburbs have been struck by lightning. “If you are on the Great Wall, you must try to lower your body, do not go to the highest point, and go down. You can hide in the beacon tower and the tower. To avoid rain, but to stay away from the metal band of the tower, do not stick out your hand or head on the beacon and it is easy to be struck by lightning.” Song Haiyan said.
In addition, Song Haiyan said that the car is an ideal place for lightning protection when it is exposed to lightning weather outside, but remember not to put his hand out of the window. Need to remind everyone is to pay attention to the depth of stagnant water, to prevent the last blocked by water can not open the windows, doors. “Outdoors, it is also necessary to prevent stepping voltage attacks. People should minimize the damage caused by step voltage when they are in lightning protection, so if there is an emergency in the surrounding, there are uneven voltage distribution, you should quickly Put your feet together and immediately use one leg or two legs to get out of danger."
Taking lightning protection measures outdoors is not foolproof indoors. When thundering, do not touch any metal pipe indoors because once the building body is struck by lightning, a large amount of charge will discharge current through these metal pipes. At this time, close the doors and windows, keep away from the windows, do not bathe at this time, especially do not use solar water heaters, in the house can only use a cordless phone or cell phone. Do not use household appliances, try to cut off the intrusion of thunder and lightning. Unplug the power plugs of all the wired and network cables in the home and keep a safe distance from it.