During the visit, it was found that although many residential buildings posted fire safety tips prohibiting charging electric bicycles in the building, it was still normal for residents to push trolleys upstairs. For the convenience of charging, some residents connect the charging plug-in board from their own floor into an "extended version" charging cable, which extends downstairs to charge electric bicycles and even electric vehicles. With the increase of rainy weather in summer, the unrecoverable rechargeable plug-in board is easy to conduct electricity in the rain, which increases the risk of electric shock for residents.
Some residents are also very helpless about the rule that "carts are not allowed to go upstairs". "There is no equipment for charging electric vehicles in the community. Some models of electric vehicles are designed with batteries connected to the vehicle. If you want to charge, you can only push it to your home to charge. "
When visiting some communities in Xiqing District of Tianjin, it is common for residents to go downstairs every morning and evening. When asked if he knew the rule that "carts are not allowed to go upstairs", a resident said, "I saw it when I brushed the news on my mobile phone, but there was no place to charge when I went upstairs and went home."
Recently, the Emergency Management Department issued the Regulations on Fire Safety Management of High-rise Civil Buildings, which was implemented from August 2002/KLOC-0 to August 2002/KLOC-0. For the problem that the battery car is parked in the corridor, which is widely concerned by the society, it is clearly put forward that it is forbidden to park or charge electric bicycles in the lobby, evacuation walkway, stairwell and exit of high-rise civil buildings.
"The most common electric vehicle fires in life are caused by the' thermal runaway' of the battery." Xiao Bing, president of Academia Sinica of Emma Science and Technology Group, said that there are some electric bicycle batteries that are recycled and refurbished for the second time in the market, which are more likely to cause accidents. In addition, in order to increase the delivery volume, users, mainly car sellers and express delivery industry, will overload vehicles, and some people will modify the controller of electric bicycles to achieve the purpose of speeding up, which will inevitably increase the burden on the vehicle battery and lead to the battery "thermal runaway".
"In the fire inspection, there are indeed illegal acts such as' stair flying line charging, indoor charging, and littering of electric vehicles in the corridor', which can easily lead to fires." Liu Shengyang, assistant engineer of the fire rescue detachment in Heping District, Tianjin, said that recently, due to a video of electric vehicles deflagrating in an elevator on the Internet, people's reports on electric vehicles entering the elevator have surged. As for the situation of electric cars entering the elevator or entering the house, according to the current laws and regulations, there is no clear regulation on this phenomenon, and the fire department can't handle it.
Liu Shengyang believes that in solving the problem of charging electric vehicles for community residents, only by further promoting the installation and use of intelligent terminal equipment such as intelligent charging piles and elevator induction alarms can the problem of electric vehicles entering the building and entering the household be fundamentally solved.