The "2.23" fire accident in Yuhuatai District, Nanjing once again aroused everyone's attention to the fire safety hazards of electric bicycles. In recent days, Kaiping errands** have received dozens of citizens who have reported that the ground overhead layer in their community is also used to park electric bicycles, and they are worried about the risk of similar fires. In this regard, a reporter from Chuncheng Evening News-Kaiping News visited a number of communities in Kunming and found that the overhead layer on the first floor of many communities is widely used to park electric bicycles and install centralized charging devices.
【Hot Questions】
1.What is the "overhead layer" of the community?
According to the provisions of the national standard "Unified Standard for Civil Building Design" (GB50352-2019), the overhead layer of civil buildings refers to the open space layer with structural support and no external retaining wall, which can generally be used for residents' fitness and leisure.
2.Can electric bicycles be parked on the overhead floor of the community?
According to the previous reply from the Office of the National Fire and Rescue Bureau, it was clear that if there is a public foyer, evacuation walkway, stairwell or safety exit in the overhead layer of a high-rise civil building, according to the "Regulations on Fire Safety Management of High-rise Civil Buildings" (Order No. 5 of the Ministry of Emergency Management), electric bicycles are also not allowed to be parked or charged to avoid causing electric bicycle fires and affecting the evacuation safety of building personnel.
Yunnan Fire "** released on February 27 ** "Electric Bicycle Fire Safety Tips" mentioned that for property management units, the first is to set up electric bicycle parking and charging facilities independently outdoors; Second, it is strictly forbidden to park or charge electric bicycles in the public areas, foyers, walkways, and safety exits of the building; Third, when purchasing charging equipment, it is necessary to purchase qualified products through formal channels; Fourth, strengthen the inspection of electric bicycle parking and charging places, and equip them with corresponding fire-fighting facilities and equipment. While we enjoy the speed and convenience brought by electric bicycles, we must standardize the use, charging and parking to avoid fires and tragedies.
[Reporter visit].
The community has an electric bicycle charging area on the overhead floor
With the surge in the number of electric bicycles, the parking problem has become increasingly prominent, and many communities have transformed the overhead layer on the ground into an electric bicycle parking place in order to solve the parking problem. Although this practice temporarily relieves the pressure of parking, it also brings safety hazards that cannot be ignored. The battery of the electric bicycle is very prone to spontaneous combustion when it is charged or damaged, and once it is **, the fire spreads quickly and the smoke is large, which brings great difficulties to personnel evacuation and fire fighting. The overhead level was originally designed for flood control, ventilation, etc., and was not intended as a parking lot or charging station.
Recently, when the reporter visited a number of residential communities in Kunming, he found that the overhead layer on the first floor of many communities was used to park electric bicycles and installed centralized charging devices.
On February 27, the reporter walked into the Crescent Pond Community, Wuhua District, Kunming City, and noticed a green sign at the bottom of the building "Electric Bicycle Parking Area" at a glance in the three groups of 16 buildings, next to the electric bicycle charging area, and equipped with charging facilities, and the door was marked with a sign of "It is strictly forbidden to modify electric bicycles to enter".
Entering the 16 overhead floors, the reporter found that there were two bottles of fire extinguishers hanging on the left wall of the door, and there was no sprinkler equipment or intelligent smoke detector on the roof, and the floor height was short. There are charging piles on the overhead floor, which are full of electric bicycles, and there are electric bicycles that park their cars outside the building, and pull a charging cable to plug in the electric bicycle charging area inside for charging. "I don't know if our community is qualified, but we're still a little worried. Some residents of the community said.
There is also a "flying wire" charging in the corridor
On January 4, Kaiping errands reported on the indiscriminate parking of electric bicycles in the courtyard of No. 236 Daguan Road, Xishan District, Kunming City, and the situation of privately pulling wires for charging. On February 29, when the reporter visited back, some residents said that although they were worried about the fire danger, they could not do anything.
The reporter saw in the community that under an anti-theft cage on the first floor, there were two charging sockets pulled down from the upper floor, and one of the wires was from the 5th floor. On both sides of the aisle leading to Unit 1 in the complex, multiple e-bikes and a motorbike are parked. "There are more than 70 households in the community, and the passage was already narrow, and now there are electric bicycles parked, and in the event of a fire, the escape route is basically blocked. A resident said.
An aunt said that although she was worried about safety, she was worried that there was no way to do it, and the residents had no other place to charge. "I often hear the sound of the charger when I pass by the first floor. These are basically the tenant's e-bikes charging, and there is no way to interfere. Aunt said.
According to the previous understanding, there are 72 households in the community, most of which are given to the employees of Kunming Weighing Instrument Factory during the housing reform, and only 7 houses still belong to Kunming Weighing Instrument Factory. Previously, residents also complained about the hidden dangers of charging, and the staff of the Palm Shuying Sub-district Office and other departments went to the community to work together, wanting residents to park their electric bicycles in a public area outside the door of the community with property rights belonging to the Kunming Weighing Instrument Factory, but the proposal was not accepted by the residents because it could not solve the charging problem.
The staff of the Palm Shuying Sub-district Office in Xishan District said that the Sub-district Office will continue to strengthen the inspection of the dormitory of Kunming Weighing Instrument Factory in conjunction with the safety supervision station and the community, and discourage the indiscriminate parking in a timely manner.
There are communities to develop targeted solutions
On March 1, a reporter from Chuncheng Evening News-Kaiping News came to Xincheng Community, Tuanshan, Wuhua District, Kunming City. According to the security guard of the community, the community has an underground area, two ground electric bicycle areas, and an electric bicycle area outside the community. There was a fire in the electric bicycle storage area on the ground on September 24 last year, and it was later repaired and rectified.
Mr. Xia of the underground non-motor vehicle storage station told reporters that the management of the underground garage is divided into a charging area and a placement area, with a fire door in the middle of the two areas, and the corresponding fire extinguishers are placed at the same time. In addition, fire balls will be installed in the garage in the near future to strengthen fire prevention facilities.
The reporter randomly visited several high-rise buildings in the community, there are no debris in the corridor and corridor, and the elevator of each building is pasted with a "notice on cleaning up and rectifying the indiscriminate parking of electric bicycles", which states that "where the electric bicycles are not parked in the designated place, the property will be dragged, cleaned up and charged a management fee of 50 yuan." ”
It is understood that the security room of the community is the first to guard, and the property will regularly check the fire fighting equipment in the community to ensure fire safety; At the same time, fire drills are conducted 3 to 4 times a year to improve residents' awareness of fire protection.
[Everyone said].
Why are electric bicycle charging fires frequent?
According to the statistics of the National Fire and Rescue Administration, a total of 2 electric bicycle fires will be reported nationwide in 202310,000, an increase of 17 compared to 20224%。In 2022, a total of 1 electric bicycle fires will be reported nationwide80,000, up 23. from 20214%。Data shows that 80% of e-bike fires occur while charging, more than half of which occur during night charging, and 90% of e-bike homicide cases occur in hallways, aisles and stairwells.
Accidents of electric bicycle charging fires occur from time to time, and the main causes mainly include overcharging, aging wiring, and battery failure.
The reporter interviewed a fire expert, who said that during the use of electric bicycles, if the charging time is too long, it will cause the battery to heat up, swell and even **, which is an important cause of fire. The electronic components inside the charger can overheat when working for long periods of time, causing short circuits and sparks, which also increases the risk of fire. Most e-bike fires occur while charging, especially during charging at night, and due to the lack of effective supervision, it is difficult to detect and deal with problems in time once they occur.
According to fire experts, whether it is a battery car with lead-acid batteries in the past, or a new energy battery car represented by lithium batteries, there are certain hidden dangers. After the lithium battery thermal runaway, splashing water, fire extinguishers, and sand cannot stop the combustion, and it will only be extinguished after the thermal runaway reaction is over. The battery capacity of the electric bicycle is very large, and the process will be relatively long, and before it goes out, the items in the house will already be ignited, causing a larger scale of burning.
The reasons for illegal parking and repeated prohibition of illegal charging of electric bicycles are related to many factors, such as insufficient public awareness, inadequate management and lack of safety knowledge.
Although there are clear regulations at the national level on the issue of electric bicycles entering buildings, there are still difficulties in practical implementation. After many reminders, why do citizens still bring batteries into their homes to charge? During the visit, the reporter learned that some car owners were worried about the theft of the battery and brought the battery into their home, and the fire hazard also quietly followed home. Although the fire department has reminded the public to raise fire safety awareness and regulate the parking and charging of e-bikes, many residents still take their batteries home to charge even after receiving multiple warnings.
In this regard, netizen @嘟嘟 also said: "If the electricity cost of the centralized charging pile for electric bicycles is not so high, who would choose to push it upstairs to charge?" ”
Some netizens pointed out that the problem of expensive electricity charges for electric bicycle charging piles is not only related to the interests of car owners, but also a complex issue involving community management, energy consumption and environmental protection. Therefore, it is necessary for relevant departments such as property management and community to work together to provide a more convenient, economical and safe charging environment for electric bicycles through scientific planning and reasonable regulation.
At the same time, Mr. Zhang, a citizen, believes that everyone should take their own safety responsibilities, not only to comply with the regulations, not to connect the power supply privately, but also to check their own electric bicycles to ensure the safety of key components such as batteries. Only by the joint efforts of relevant departments, communities and citizens can we effectively prevent electric bicycle fires and ensure the safety of people's lives and property.
Chuncheng Evening News-Kaiping News Reporter Ma Yining Daniel Zhang Long Yudan Lan Hao Intern Zhao Xuefang Photo report.
First instance Yang Qian.
Editor-in-charge: Yi Keyan.
Responsible proofreading by Lu Shicheng.
Editor-in-chief: Yan Yun.
Final Review: Editorial Board Member Li Rong.