Nanchang built the main street of LED lights

Nanchang City, Jiangxi Province, China has been selected as one of the pilot cities for the “Ten Cities in Ten Cities”. However, the lighting facilities on Bayi Avenue in Nanchang District have been aging for more than a decade. The urban environment on the main longitudinal axis of the city is extremely asymmetric, and the luminous flux of street lamps and lanterns has dropped to less than 50% of the initial period of construction. Moreover, frequent line failures have occurred in the past year or two, and there is an urgent need for upgrading the facilities as a whole.

The Bayi Avenue road lighting used energy-saving, environmentally friendly, beautiful LED street lights, for the domestic independent research and development of crystal and lighting high luminous efficiency LED lights, the national electric light detection center detection of the whole lighting efficiency of 108.6LM / W, is the world So far, the highest efficiency streetlights have been reported.

After calculation, a 12.8-meter-tall dual-beam double-armed steel pole street lamp is symmetrically arranged on both sides of the road with an average distance of 35 meters along the Bayi Avenue. The single-pole power is 420W, which is nearly twice that of the previous single-pole power of 1300W. . The replacement of the lamp than the previous high-pressure sodium lamp not only save energy more than 60%, but also make the road lighting various technical indicators have been greatly improved than before, the average illumination of 35LX, illumination uniformity of 0.873LX, longitudinal uniform The degree is very good. In order to strengthen the lighting effects at seven intersections including Yangming Road, Dieshan Road, Minde Road, Zhongshan Road, Yongshu Road and Zhanqian West Road, a LED street light with a middle pole of 15 meters high and three light sources was installed. At present, there are about 150 dual-beam dual-armed steel pole street lamps, about 20 LED street lights in the three light source poles, and 3.9 kilometers of Bayi Avenue. A total of 359 twin-crystal and high-power LED lighting fixtures have been installed. Traffic junctions are extremely bright.

At the same time, the batch of lamps also uses a single lamp dimming electronic control, through the PLC program control of the lamps, so that the single lamp automatically reduces the power of the entire lamp by 50% in the case of fewer pedestrians in the middle of the night. obvious. Due to the continuous controllability of electronic devices, lamps, power supplies and electronic devices can operate continuously and stably under the conditions of lower than rated voltage and rated current, and the service life of the products is also greatly increased.

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