April 3rd
Ganzhou, Jiangxi
In a small area in Shangyou County
A new energy vehicle suddenly caught fire
After the arrival of fire and rescue personnel
It was found that the fire started at the rear of the car
Flames kept coming out from under the car
and accompanied by an explosion
Fire and rescue personnel immediately evacuated the crowd of onlookers
At the same time, two water cannons were dispatched to extinguish the fire
After a preliminary investigation
The owner of the car privately connected to the home line to charge
Causing the line to be overloaded and caught fire
, duration 00:14
New energy vehicles are environmentally friendly and economical
It is increasingly favored by the public
But with that comes security issues
It should not be overlooked
Recently
New energy vehicle fires occur from time to time
Related Cases
Case 1:
In April 2022, a new energy vehicle on the auxiliary road of Chengdu's Third Ring Road spontaneously combusted, and thick smoke billowed from the scene. After receiving the alarm, fire rescue personnel immediately rushed to the scene to extinguish the fire. After 20 minutes of rescue, the fire was successfully extinguished, but the car was also "unrecognizable".
Case 2:
On April 21, 2022, in Putian, Fujian Province, a new energy vehicle in a parking lot broke out while charging and ignited another car next to it.
Case 3:
On November 17, 2022, in Xindu, Chengdu, an electric truck at a charging station caught fire when it was fast charging, the scene was filled with thick smoke and exploded, and fire rescue personnel immediately extinguished the fire at the scene. After the on-site investigation and questioning of relevant personnel by the fire control team, the monitoring video and background data analysis were comprehensively determined that the cause of the fire was the deflagration of the thermal runaway heat storage of the power battery.
Case 4:
On March 15, 2023, in Liupanshui, Guizhou, in the charging station next to the Tashan Cement Factory in Yijie Street, a new energy vehicle suddenly began to smoke after the charging was completed, and then caught fire.
To avoid tragedy
It is necessary to understand why new energy vehicles catch fire
So as to extinguish these "fire primers" at the source
New energy vehicles spontaneously combusted and caught fire
Most of this is due to thermal runaway of the battery
And the cause of thermal runaway of the battery
It can be simply divided into charging reasons, driving reasons, etc
Charging, battery reasons
1. Fast Charging:
Fast charging will affect the stability of the battery, and it will also bring a large amount of heat in a short period of time, and the heat is uneven. Spontaneous combustion may occur if the inside of the battery reaches the initiation temperature of thermal runaway.
2. Overcharge:
Overcharging means that the battery continues to charge after it is fully charged, and at this time, the internal pressure of the battery may increase, resulting in an increased risk of thermal runaway of the battery.
3. Over-discharge:
Over-discharge is the complete use of the battery power, and if this is done frequently, the battery with the lowest voltage in the battery pack may be reverse-charged by other batteries, causing abnormal heating and spontaneous combustion.
Reasons for driving
1. Wading or being blistered:
If the battery is immersed in water, it may have an external short circuit, which will generate heat, and once the temperature of thermal runaway is reached, the battery may spontaneously combust.
2. Accidents:
There is an accident in the vehicle while driving, the battery is punctured, squeezed, collided, etc., resulting in spontaneous combustion of the internal short circuit of the battery, such as the vehicle passing through the pothole, being hit by sharp stones on the chassis, the battery is squeezed and the internal short circuit, and finally spontaneous combustion.
Other reasons
1. Refurbishment:
In order to charge quickly, some car owners change "slow charging to fast charging", and these slow charging batteries that have not done much cooling optimization themselves have the risk of thermal runaway spontaneous combustion under long-term high-power fast charging.
2. Internal combustibles:
In hot weather, if there are flammable and explosive items such as perfume and lighter in the car, they may spontaneously combust in direct sunlight and ignite the vehicle.
If you encounter a fire in a new energy vehicle
And how do we respond?
1. Never extinguish the fire by yourself
Once the new energy vehicle spontaneously combusted, the fire is very fierce, and most of the car fires occur in the rear battery part, which needs to be power-off treatment, and the professionalism is too high, and it is not advocated that the personnel extinguish the fire by themselves, nor do they advocate the control of the vehicle in accordance with the traditional fire extinguishing method of the fuel vehicle, so as to avoid casualties.
2. Keep away from the vehicle and call the police in time
After discovering that the new energy vehicle is on fire, the owner and pedestrians should stay away from the vehicle as soon as possible, call the fire alarm number 119 after arriving at the safe area, explain the brand and model of the vehicle to the fire and rescue personnel, and the fire and rescue personnel will dispose of it, and do not extinguish the fire by themselves.
3. Prevent inhalation of toxic fumes from battery combustion
In the process of extinguishing, it is necessary to prevent inhalation of toxic gases such as hydrogen fluoride and hydrogen cyanide emitted after battery combustion.
4. It is easy to rekindle, do not fold back
Even after the fire is extinguished, it is still recommended that the owner do not return to the car, so as not to lose a lot of money.
Peng Peng prompts
The most effective way to avoid accidents
It's better to prevent problems than to prevent them from happening
Come and learn in new energy vehicles
Daily use, charging, parking, and on the go
What should be noted
1
Vehicle maintenance should be faced:
Do not modify the circuit system without permission, and do not go to a place without qualifications for maintenance. At present, the technical routes of many new energy vehicles are not the same, and when the vehicle is repaired and maintained, try to go to the brand's regular 4S store to operate.
2
Double-check before charging:
Before starting charging, check whether there are foreign objects or water stains in the charging cable, and check whether there are water stains or foreign objects in the charging port of the car to make sure that charging has not started again.
3
Charging details:
Do not charge at high temperatures. The high temperature is prone to the risk of spontaneous combustion, so try to choose a relatively cool time such as evening and early morning for charging.
Do not charge the vehicle immediately after driving for a long time, try to park the car in place for about 30 minutes before charging, and give the battery pack a proper cooling time.
4
Regular Maintenance:
It is recommended that owners of pure electric vehicles follow the manufacturer's guidelines and go to the shop on time to maintain their vehicles.