Tunnel

led tunnel light is a kind of tunnel light, it is used in tunnels, workshops, large warehouses, venues, metallurgy and all kinds of factories, engineering construction and other places large area flood lighting, most suitable for urban landscape, billboards, building facades for beautification lighting.

The factors considered in tunnel lighting design are length, line, interior, road surface type, the presence of sidewalks, the structure of the link road, design speed, traffic volume and car type, etc., and also consider the light source light color, lamps, arrangement, lighting level, brightness outside the cave and the human eye to adapt to the state, tunnel lighting design is to solve this series of problems.

Luminaire technical requirements

1. The initial luminous efficacy of road tunnel LED luminaires should not be less than 120 lm/W.

2. The initial luminous flux of the road tunnel LED luminaire should not be less than 90% of the rated luminous flux, and should not be greater than 120% of the rated luminous flux.

3.Highway tunnel LED luminous flux maintenance rate should meet the following requirements. (a) the luminous flux maintenance rate should be greater than 97% after 3000 h of continuous lighting; after 6000 h of continuous lighting after continuous lighting 6000 h, should be greater than 94%; after continuous lighting 10000 h, should be greater than 90%. (b) lamps and lanterns in the lighting system under normal conditions of lighting, L70 (h) should be greater than 55000 h.

4. In the normal ambient temperature working conditions of road tunnels, LED lamps and lanterns junction temperature rise △ T should not be higher than 25 ℃. 5. Road tunnel LED luminaire color rendering index average Ra should not be less than 70. 6. Road tunnel LED lamps and lanterns light distribution should be based on the longitudinal uniformity of road surface brightness UL, cloth light spacing S design . Longitudinal beam angle α, different UL, S LED lamps and lanterns longitudinal beam angle α should not be less than the value in Table 1.

LED luminaire longitudinal beam angle α recommended value

5.Highway tunnel LED lamps and lanterns light distribution according to the width of the tunnel cross-section design lateral beam angle β, two lane, three lane highway tunnel LED lamps and lanterns β should not be less than 60 °.

6.1.8 Road tunnel LED lamps and lanterns should have self-cleaning function on the heat dissipation surface.

7. Road tunnel LED lamps and lanterns in the rated working conditions of the power factor value should not be less than 0.95.

8. Road tunnel LED lamps and lanterns should have dynamic dimming control function, that is, the brightness of the lamps and lanterns can be based on the tunnel cave outside
Brightness, speed, traffic flow and other factors for dynamic adjustment.

10.Applied to the mountain road tunnel LED lamps and lanterns complex color light smoke penetration efficiency factor Ep value should be greater than 0.66, other areas complex color light smoke penetration efficiency factor Ep value should be greater than 0.48.