The actual application case of LED tunnel lights in China

Research on the application of new energy-saving tunnel light has been paid attention to by the lighting industry, including energy-efficient led street light fixture study has significant progress. Because, according to photopic vision and intermediate vision theory, the color of the relationship between scientific research and illumination, LED lighting used in the tunnel has inherent advantages, so there are a number of important tunnel lighting projects using led street light fixture over the world. LED tunnel lights in tunnel lighting project has made a breakthrough, but there are still problems, such as there is no special design and construction specifications for the LED light source for tunnel lighting, the product performance is uneven and so on. 60% of the tunnels in Europe are in Italy, the case is the actual application case of a tunnel in Rome, Italy.
JL-066-08-1-type led street light fixture, LED we have used is up to 1W 90 ~ 105Lm, the current voltage is 3.2V, we still use 320hA power, so the actual operating power of an LED is 1.024W , the total power of 66 pcs light source is 67.6W, our power conversion efficiency is 86%, so the total power is 78.6W, totaling 103 in 736M tunnels, with a total power of 103 × 78.6 = 8095.8W.
Taking into account that the led street light fixture in the vicinity of the tunnel adopt the smart way to control the brightness rather than traditional sodium lamp directly turning off at night, so the overall mounting density of the led street light fixture must be re-adjusted according to the needs of surface brightness. Installation layout of the original sodium from the entrance region of high brightness in the light form the three bright regions when the intense light turn on, the high brightness of region is 0 to 30 m away from the entrance of tunnel, the brightness is 80Lux, the Mid-brightness area is 30 ~ 60 meters away from the entrance, the brightness is about 50Lux, 60 to 96 meters to the transition area is about 40Lux, the middle area of ​​the tunnel is the low brightness area, the brightness is about 30Lux, when the bright lights turn off at night, the whole area of ​​the tunnel is all low brightness, the brightness is about 30Lux.
After taking the LED tunnel lights, there are a total of 40 LED tunnel light lights from the tunnel entrance and exit have taken the intelligent way to control the brightness, there are 63 LED tunnel lights taking full power all year round in the middle of the tunnel, the total number of lights is 103pcs, which is 7 per cent more than the lights to be designed before. Specific practices, a light-sensitive controller was installed at the entrance and exit of tunnels to collect optical signals so that the optical signals directly control the brightness of 40pcs led street light fixture at the entrance and exit of the tunnel, which take full power during the day and semi-power work in the evening, the brightness of the basic requirements to meet 80,50,30 Lux the brightness during the day and the hole is about 40Lux in the evening, still 30Lux inside, the brightness of led street light fixture varies with the ambient brightness, the controller does not consume energy, if we do not change the brightness with the change of outside environment , we can directly set a fixed time to change its brightness. The wiring diagram of led street light fixture installed.


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