A few days ago, a young man in Chongqing put his mobile phone on the bed when he was asleep. As a result, the mobile phone exploded in the middle of the night and ignited surrounding objects, which almost caused a fire. In the past few days, the fire department has set the city's fire risk index to a level 4 "flammable" state. Professionals told reporters that some incorrect methods of use can easily lead to electrical failures and cause fires.
"My mobile phone is placed at the bed every day. I have to play for a while before going to bed. What should I do if I want to really explode?" "The mobile phone will explode, will the laptop explode?" The reporter visited yesterday and found that the mobile phone explosion triggered Many people are concerned.
However, the reporter visited a number of electronic product maintenance personnel and learned that high temperature does not directly "ignite" electronic products. The cause of the explosion is likely to be a mobile phone battery problem.
"Most mobile phones and laptops are safe, but in recent years there have been incidents of such products exploding. Some are explosions while charging, some are explosions in standby mode, but they should all be battery problems." Mr. Zhang told reporters in 10 years that any product has a useful life. According to the existing standards, the cycle life of mobile phone batteries should be no less than 300 times. "According to the frequency of many young people using mobile phones, mobile phone batteries are best replaced in a year or two."
Will high temperature weather cause the possibility of explosions or fires in mobile phones and other home appliances? In this regard, Mr. Zhang told reporters that there are multiple protection devices when the electrical appliances are shipped from the factory. Taking a mobile phone as an example, multiple protections in the device prevent overcharging, overheating, and excessive internal pressure. Even in high temperature days, the heat of the mobile phone will not explode or burn. However, the use of electrical appliances on high temperature days should pay attention to the correct method.
Mr. Wu, who is engaged in electrical maintenance, told reporters that some mobile phones may cause partial short-circuit of the battery if they have entered the water. Once the load is high, the problem will appear immediately. Someone once asked Mr. Wu to repair the laptop. He turned on the machine and found that it had entered the water. “Customers say they have never let the computer touch the water directly, but when they take a bath in the summer, they actually bring the computer into the bathroom to watch the video.â€
Some home appliances with batteries, if placed improperly, such as the battery to contact the key, coins and other conductive media may also cause a short circuit, the high temperature caused by the instantaneous high current may even exceed 100 °C. At this time, there is flammable material next to it, which may cause burning. When the reporter visited some citizens' families, they found that the placement and charging position of mobile phones and other electrical appliances were often mixed in a pile of perfumes, magazines and even alcohol. If the occasional deflagration, the consequences will be unimaginable.
The reporter learned from the fire department that many household fires occurred on hot days, and many were related to overloaded electricity. The 23-year-old Mr. Tang lived alone in a one-bedroom, one-bedroom house. After entering the hot weather, he moved the computer from the living room into the bedroom. Due to the limited wire connection in the bedroom, nearly 10 plugs such as air conditioners, computer mainframes, monitors, and water dispensers are all concentrated on one terminal block. He felt: "It's so convenient, you don't have to go out when you enter the room." This is obviously an extremely dangerous fire.
The fire department reminds that in the summer, do not let the electrical equipment work under high current conditions for a long time; when using household appliances, pay attention to heat dissipation and keep it as far away as possible from combustibles. In addition, high temperatures may also cause the electrical and wire insulation rubber to be "crunchy" to age. It is best for the public to check the switch sockets and lines frequently, check whether the wires are aging, cracks, etc., and repair them in time if they are found to be faulty.
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