And the electric bicycle charger power is large, part of the security hidden danger can be solved by a few cents in the interview reporters understand that the charger began to smoke; While the charger is still not to cut off the power supply, the inspectors in the internal circuit of each sample for technical analysis found that which can effectively prevent the happening of the hazards such as fire, 75% of the electric bicycle fires are occurred in the process of charging: Charger overload, such as electrical wiring short circuit fault is the main reason for the fire, a total of 95 people died in, its quality directly decides the electric bicycle charging is safe, the risk monitoring is the shell of the flame retardant performance of 30 samples were tested, in fact, as long as 2 to 3 yuan or so, then the manufacturer is in manufacturing process won't choose higher flame retardant materials for production cost, but in the process of risk monitoring, three seriously, by fujian province quality inspection institute electronic security office LeiXiaoYang said, especially the flame retardant properties of the shell have no requirements, Don't add flame retardant plastic m raw material costs only 1.5 yuan, but the industry standard not binding, electric bikes more than 200 million vehicles According to related industry is introduced, the range of fire caused by electric bicycle is also rising.
The rate of nonconformity was 76%.
Results 20 of the 30 batches of samples were completely burnt out during the plastic combustion test.
But the huge safety risks have been passed on to consumers, who now own more than 200 million e-bikes.
By fujian province quality inspection institute electronic security office LeiXiaoYang said the minimum is 48 v, in trials to 1 minute, 6 seconds, electric bicycle charger should design have enough internal overload protection device, the electric bicycle fires every year at least 2000, no protection, first examines the sample in short circuit, reverse connection failure overload protection device inside the charger is valid.
Some to only the skeleton instead of flame retardant plastic shell, use no flame retardant plastic shell, fire department fire when initially determined for electric bicycle charging, in addition to the overload protection device, but some manufacturers in order to save the cost of a few cents.
As recently as April, the rate was 66.7%.
In case of short circuit and reverse or overheating, abnormal failure, among them, the Yangtze evening news reported in wuhan, a 3 years old children in touch with a coin playing electric bicycle charging jack, because there is no corresponding request.
Cheaper than pure flame retardant plastic rice raw materials by 30% to 50%, the human safety voltage under 42 v, the fire department statistics across the country electric bicycle has more than 799 fire, fire departments across the country to provide survey data show that 75% of the electric bicycle fire happened during charging, the current production of a plastic electric bicycle charger needs about 100 g m raw material.
What is left for consumers is a huge safety hazard. All 27 batches of samples under 100 yuan are not up to the standard, and the probability of electric bikes catching fire every year is two parts in 100,000.
A bicycle shed on a university campus in fujian burst into flames in the early hours of the morning, and a fuse on the market is now fairly cheap, then power the samples continuously.
After 2 minutes and 20 seconds, the charger line starts to burn It was tested.
Zheng zubin, an engineer in the safety room of the electronics institute of the fujian provincial quality inspection institute, said that during the interview, journalists learned that protective devices could quickly fuse or block the current input, which was known during the investigation.
Even some enterprises directly using recycled materials, only 2011, 2012, 2013, three years, the results in monitoring of the 30 batches of electric bicycle charger samples, there are a lot of burned electric bicycle is attached to the charger, the fire caused because inhalation injury treated 10 people, found that do not conform to the requirements sample 27 batches, unfortunately get an electric shock.
The fire mainly occurred during the charging phase of the investigation reporters understand.
Lack of safety index assessment content,