In recent years, with the rise of electric vehicles
The problem of "difficult charging" is becoming increasingly prominent
There is a queue at public charging stations
There are no private parking spaces or transformer equipment in the community
It is not possible to expand the capacity to install home charging piles
……
As a result, some car owners choose "flying wire" charging
However, this is one of the important causes of fires!
What is "flying wire" charging?
Why is it easy to cause vehicle fire when charging with "flying wires"?
recently
The fire and rescue department cooperates with China University of Mining and Technology
A set of experiments was conducted on electric vehicles charged with "flying wires".
[Experiment 1: Cable Gravity Damage]
The experimenter used a small tensile testing machine to simulate the long-term gravity and human pulling of the cable.
The resistance value of the cable is measured by the bridge circuit, and the resistance value of the cable is significantly increased after loading compared with the two resistance value measurements before and after loading.
The experimenter cut the insulation layer of the loaded cable on the spot, and it can be seen that multiple strands of copper wire in the cable are broken, which has potential safety hazards.
[Experiment 2 Cable Burning Process]
The experimenters intercepted a section of inferior cable to simulate the process of the cable burning and catching fire. When the cable is ignited, the combustion zone continues to transfer heat to the unburned area, and the unburned zone is heated and ignited again, and the cycle repeats, and the flame continues to spread.
In the process of spreading, it is also accompanied by the phenomenon of peeling off and molten dripping.
It can be seen from the above experiments
Due to long-term exposure to the external environment
"Flying wire" charging can easily be caused
Problems such as aging lines or poor contact
Cause short circuit and overload of the cable
This in turn causes the cable to heat up or even ignite
And some low-quality cables still have molten dripping phenomenon after ignition
It is easy to ignite the surrounding flammable and flammable materials
Thus starting a fire
The consequences are unimaginable
The moment of popularization of law
According to Article 64 of the Fire Protection Law of the People's Republic of China:
Whoever commits any of the following acts in violation of the provisions of this Law, which does not constitute a crime, shall be detained for not less than 10 days but not more than 15 days, and may be concurrently fined not more than 500 yuan; if the circumstances are more minor, he shall be given a warning or a fine of not more than 500 yuan; he instructs or forces others to violate fire safety regulations and work at risk; he causes a fire by negligence; he obstructs the alarm after a fire breaks out, or the personnel responsible for reporting fail to report to the police in a timely manner; he disrupts the order of the fire scene, or refuses to carry out the command of the commander at the fire scene, affecting the fire fighting and rescue; he intentionally destroys or falsifies the fire scene; he unpacks or uses a place that has been sealed by the fire and rescue organization without authorization, partial.
For your safety and the safety of others
Don't leave anything to chance
Refuse to charge with "flying wires"!
Refuse to charge with "flying wires"!
Refuse to charge with "flying wires"!
So, how do you properly charge your electric car?
Let's take a look!↓↓↓