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| LED Street lamp mounting height and spacing |
LED lamp mounting height and spacing should be determined base on the requirements of road illumination, for its cantilevered high pole lamp mounting height should normally be more than 7m . If use full cut-off luminaire, mounting height h ≥ W, lamp post spacing should not be greater than 3 times the mounting height ; the use of a non cut off luminaire, mounting height h ≥1. 2W. Lamp post spacing should be less than 4 times the mounting height ; if using semi cut off luminaire , mounting height ^ ≥ 1.2 W, lamp post spacing should be less than 3.5 times the mounting height . In order to decrease glare and improve lighting quality to avoid roadside trees blocking light and should improve installation height and spacing, and boom length relaxation .
Luminaire spacing can be determined based on illuminance levels : an illumination shall be not less than 2 51x, lights should not be greater than the average spacing of 30m; -level illumination shall be not less than 201x, street spacing shall not exceed an average of 35m; three illumination shall be not less than 10 ~ 151x; four illuminance level in 5 ~ lolx between fourteen illumination lights spaced no more than an average of 40m. Lamppost according to the boom length should lane and roadside tree species , typically in the 1. 5 ~ 3. 5m. In the past, city road lighting design , consider lighting maintenance vehicle lifting height , generally 8 ~ 12m height poles fabric lamp spacing using 30 ~ 35m. Lighting fixtures cantilever overhang length does not exceed the height of 1/4. Lighting installation angle control from 50 to 150 range. In the arrangement of lamps shall be based on the exposed site and surroundings reasonable choice of lamps and configuration design should pay attention to the following points.
( A ) To consider avoiding pedestrian crossing bus station platform .
( 2 ) Special attention should be strengthened intersection every road leading out of the population in order to facilitate the driver easier to distinguish light intersection , while also limiting glare.
( 3 ) For the illumination curve segments , if the road wide cloth lamp in the bilateral arrangement should not be cross . Because cross arrangement may lose induced , easily lead to accidents. Cornering lamps shall not be installed at the extension in a straight line down the road , so as not to be mistaken for the driver extends forwardly road accidents.
( 4 ) In the larger places should consider setting up special lighting pole , LED lights set up to meet the functional requirements of the premise should try to make it attractive appearance, its location should consider setting does not affect the normal maintenance traffic collision does not occur pole accidents.
( 5 ) on the road in downtown functionality should be set taking into account the landscape decorative lighting such location is not very strict restrictions on the glare , the light has moderate eye effect but is conducive to creating a lively atmosphere , to both increase the aesthetic degree and enhance the business climate , multi-effects . |
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