There are three top events in the world: the Olympics, the World Cup and the World Expo. The World Expo, which is known as the world's economy, science and technology and culture, will continue to implement the concept of science and technology Expo and low-carbon Expo.
Among the 5.28 square kilometers of the park area of ​​the Expo Park, there are 29 public roads under the jurisdiction of the Shanghai Street Light Management Center. LED and related technologies have played a significant role in promoting energy saving and emission reduction in cities, and are considered to be the new solid-state cold light source with the most energy-saving and environmentally-friendly characteristics, but failed to enter the ranks of road lighting products in these 29 Expo sites.
Why does the Expo, which is based on technology and low-carbon, stop the LED, a new solid-state cold light source that is energy-saving and environmentally friendly?
The trend of led street lights is PASS by the Expo Park
At the beginning of 2008, the leaders of the Expo Bureau and the relevant professionals of the street lighting management department of the Shanghai Electric Power Company conducted many discussions on the design and construction of the streetlights in the Expo site. The leaders of the Expo Bureau proposed that the streetlights of the Expo site should use LED street lights or solar energy. LED street light scheme. Wang Xiaoming, chief engineer of Shanghai Street Lamp Management Center, pointed out that we conducted some investigations and technical analysis. At that time, the domestic LED street lamp technology was not mature. The LED street lamps tried everywhere were not satisfactory, and we could not find a one. LED street light products available for application. At that time, there were some problems with LED street lights.
The light effect is not high, the power supply (driver) fault is high, and the light decay is large, which is a common problem of LED street lamps at that time. In addition, the weight of the luminaire is too large, the structure is unreasonable, the color temperature is high, and the life is not long (not consistent with the number of 100,000, 50,000 hours). The enthusiasm of non-traditional street lamp manufacturers to promote LED street lamps is higher, and the lighting of lamps is reasonable. It is also the worry of the Shanghai Street Lamp Management Center.
The use of solar energy is also unsatisfactory, especially for batteries, which have short life and frequent replacement. Because the power of the street lamp is relatively large, the capacity of the required battery is relatively large, and the weather in Shanghai is quite special, which cannot meet the long-term lighting requirement of the street lamp. In recent years, the analysis of the situation of solar streetlights in some sections of Shanghai, such as Chongming and Songjiang, failed to meet the basic requirements.
After the above analysis, in 2008, the Shanghai Electric Power Company basically reached an opinion: the Expo Park should not promote the use of LED street lights; the solar street lights are technically unable to meet the basic street lighting requirements.
Shanghai LED street light trial situation
In order to better understand and master the LED street lamp technology, since July 2008, after some investigations and comparisons, Shanghai has tried a batch of LED street lamps: Wuning Road 135W/80W/313ç›; Yuanshen Road (Yushan Road) ) 135W/300ç›; Mall Road 120W/15ç›; Guoke Road 64W/22ç› and other sections, the trial period is longer than 18 months.
Puxi's branch road LED street trial section
Pudong's secondary road LED street light trial section
Shanghai has adopted domestically produced LED lighting fixtures for the first time in the 8.9-kilometer Yangtze River Tunnel Bridge tunnel, using more than 5,800 LED tunnel lights per 92 watts; LEDs are used in the main bridge section of the Huangpu River. Road lights, using 164 ç› LED street lights per 160 watts. The application of LED lighting fixtures on these tunnels and bridges has effectively promoted the development of LED street lighting technology in Shanghai.
LED street light on Zhapu Bridge
LED tunnel light on Shanghai Yangtze River Tunnel Bridge
LED technology is the direction of urban road lighting
Energy conservation and emission reduction is a big policy of the country. Road lighting can indeed do a lot of work in this respect. Although Shanghai now uses 96% of road lighting as a source of light, LED technology is an invaluable technology prospect as road lighting. LED technology as a city road lighting should be the direction we have to work hard. Wang Xiaoming said. The technical performance is stable, the quality is safe and reliable, the maintenance is simple and fast, the appearance is beautiful and practical, the materials are selected, the production process is energy-saving and environmental protection is the principle we follow.
In recent years, LED lighting technology has developed rapidly under the encouragement of relevant national policies throughout the country. Brother cities have taken the lead in the application of LED road lighting, and road lighting applications in Shanghai have to catch up. This year, it is planned to carry out relevant LED street lamp field test application analysis in some sections to provide effective application for LED road lighting. Technical support. LED has gradually become the hottest and most eye-catching light source in the world. It is being watched at an immeasurable speed and is growing rapidly.
Shenzhen Ousida Technology Co., Ltd , https://www.osdvape.com