The installation standard of the street light(1)

Lamp height of the street light
Height determines the field of vision, so choosing a good height determines the lighting field of vision of street lamps.
1. (the street light)The installation height of lamps and lanterns in the same street must be the same (the height from the luminous center to the ground). Small bend lamp 1m lamp 5-6m ordinary street long arm lamp and pendant lamp 6.5-7.5m fast lane arc lamp not less than 8m slow lane arc lamp not less than 6.5m
2. The special lamp type is installed according to the design requirements, and the height of the lamp is roughly equivalent to the width of the road to be illuminated. H ≌ L for lighting only on one side and H ≌ L / 2 for lighting on both sides, where H: lamp installation height (m) l: road width (m)

Lamp elevation of the street light
1. (the street light)The elevation angle of lamps shall be determined by the street width and the light distribution curve of lamps, and the elevation angle of each street shall be consistent.
2. When the lamp cap is adjustable, the center line of the light source shall fall within L / 3-1 / 2 of the road width.
3. For long arm lamp (or arm lamp), the lamp body shall be tilted 100 mm higher than the pole side after installation.
4. The elevation angle of special lamps shall be determined according to the light distribution curve.