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Electric cars of different colors is now the city of Nanjing in the POINT, the electric car brakes piercing sound is regarded as an issue of urban noise "killers", the reporter saw and heard at the scene yesterday, many similar phenomena, and the industry said brake noise and vehicle gate device has a lot, and the related departments and environmentalists said the electric car brake noise gate noise is the city of new problems. Site article: "Electric Vehicle brake noise is widespread" Yesterday (May 15) 9:30, crossing from south to north in the Xinjiekou red light appears, the reporter saw more than 10 vehicles in the intersection electric car brakes, squealing brakes a while ... ... strident voices heard, this is only an electric car brake noise scene, the reporter by car from the central gate to the Xinjiekou, each at a crossroads after a number of electric vehicles will hear the sound of screaming brakes. Who lives near the central gate LI Hong-jun interview that he lived in four buildings, electric cars every day to hear the sound of brakes, especially in the morning and evening peak commuting hours, and many cars together voice, very harsh, that time at home on the smaller speech sounds impossible, it seems more and more electric vehicle noise, an out will be heard. Zhujiang Road traffic assistant Master Huang told reporters that morning to direct traffic in the intersection when the red light when people stop to wait for the command, the electric car brakes sound very upset people, especially gay, often riding more electric cars fast, but then the brakes at red lights, bigger brakes sound natural. In "The People's Republic of China Environmental Noise Pollution Control Act" provisions of the city five types of environmental noise standard value, Type 4 standards apply to the city trunk roads on both sides of the road traffic area, across the urban area on both sides of the maximum noise limits are: Daytime shall not exceed 70 decibels at night should not exceed 55 decibels while the electric car brake brake brake moment of up to 100 decibels of noise. Selling point: "Quality is the key to brake," In the Confucius Temple, a larger electric vehicles point of sale, point of sale is far from the entrance to see the name of price reduction sign. Reporter asked about the identity of the customer electric car problems, a male teacher told reporters warm, electric car brakes There are brake and brake inflation, hanging back brake 3, brake and the braking process, when the speed too fast or brake too fast, braking resistance when not required, it will brake the contract to increase the brake and the brake disk between the skin friction at this time would produce harsh "creak" sound, sometimes too much body electric car emphasis will be noisy. Reporters know who understand the electric car industry, Ms Wong said the price is the lowest hanging back brake, but the worst performance; brake and the ex-factory price was almost as long as a few dollars; expansion brake Although effective, low noise, but the price is relatively high, the cost of hundreds of dollars needed. Currently, electric vehicles are generally used before the brake hanging back brake, Rear brake is a brake and is totally out of low-cost competition. Reporter saw the Internet, the State provides electric car vehicle weight must not exceed 40 kg, the maximum speed shall not exceed 20 kilometers per hour, the electric car brake noise and vehicle weight and speed also has a lot. The reality is that most of the electric bicycle 50 kg in weight, the maximum speed of 30 km per hour, which makes electric vehicles brake parts overburdened, too fast, will be easier to issue harsh noise. Environmentalists: "concerned about this new phenomenon" 2004 7 1, the implementation of the "Nanjing Environmental Noise Pollution Control Ordinance", the reporter did not see the electric vehicle noise regulations, including a "motor vehicle of the vehicle the maximum allowable noise level shall not exceed the standard. the public security organs should be included in motor vehicle noise, the contents of the annual inspection of vehicles. "The electric vehicle as a new means of transport, non-motor vehicles are non-cycling nature of this piece of regulatory gaps. Nanjing Environmental Protection Bureau 12369 Hotline staff told reporters, has not yet received the electric car brake brake noise complaints. Detachment of the environmental monitoring have also told reporters that the noise gate electric car the brake is indeed a new phenomenon, is also very common, as many electric cars as well as liquidity, to monitor the management is really not easy. Xiaguan District Environmental Association Vice President Liu Guozhang told reporters, the electric car brake noise gate is a new emerging issues, environmental authorities and manufacturers should be given attention, and environmental protection associations in the future will be more concerned about the noise of the new developments. The e-commerce company in China offers quality products such as China multilayer circuit board , protel pcb Manufacturer, and more. 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