Nanchang built a two-way ten-lane main road using LED street lights

Nanchang City, Jiangxi Province, China has been selected as one of the national “Ten Cities and Ten Thousand Cities” pilot cities. However, the lighting facilities that have been in operation on Bayi Avenue in Nanchang District for more than ten years are more serious, and the urban environment with the main longitudinal axis of the city is extremely asymmetrical. The luminous flux of street lamps has dropped below 50% of the initial stage of construction. Moreover, in the past one or two years, line failures have occurred frequently, and there is no need to update the facilities as a whole.
The road lighting of Bayi Avenue uses energy-saving, environmentally-friendly and beautiful LED street lamps. It is a self-developed crystal and lighting high-efficiency LED street lamp. The national electric light source testing center detects the whole lighting effect to be 108.6LM/W, which is global. The highest light effect streetlights reported so far.


It is estimated that a 12.8-meter-high dual-light double-pitch steel bar street lamp is symmetrically arranged on both sides of the road at an interval of 35 meters along Bayi Avenue. The single-pole power is 420W, which is nearly twice that of the previous single-pole power of 1300W. . Compared with the previous high-pressure sodium lamps, the replacement lamps not only save more than 60% energy, but also greatly improve the technical indicators of road lighting. The average illumination is 35LX, the illumination uniformity is 0.873LX, and the longitudinal uniformity is uniform. Very good. In order to strengthen the lighting effect of the intersections of Yangming Road, Dieshan Road, Minde Road, Zhongshan Road, Yongshu Road and Zhanqian West Road, LED street lights with a pole of 15 meters high and three light sources were set up. At present, there are about 150 poles for dual-light-steel double-arm steel poles, about 20 poles for three-light poles, and 3.9 kilometers for Bayi Avenue. A total of 359 twins and high-power LED lamps are installed. Traffic intersections are very bright.

At the same time, the batch of lamps also adopts single-lamp dimming electronic control. Through the PLC program control of the lamps, the single lamp automatically reduces the power of the whole lamp by 50% in the case of less pedestrian vehicles in the latter half of the night, so that the energy saving is more obvious. Due to the continuous controllability of electronic equipment, lamps, power supplies and electronic equipment can operate continuously and stably under the conditions of rated voltage and rated current, and the service life of the products is greatly increased.


This is the world's first road to use LED street lights on the two-way ten-lane main road. The metering results reach the urban road lighting (design) standard ME1 level; this means that the LED road lighting technology and application in Jiangxi Province has reached International advanced level.

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