How do you calculate pole spacing?
Calculation: Spacing between each Pole=(LL*CU*LLD*LDD) / Eh*W. Spacing between each Pole=(33200×0.18×0.8×0.9) / (5×11.5) Spacing between each Pole= 75 Foot.
How far apart should street lights be?
The optics play an important role and allow the lighting designer to adjust and tweak the light spread to suit the area being lit and select the most economical solution. So how far apart? You are likely to see street lights spaced approx. 30m to 50m apart – they are often spaced closer at junctions and on bends.
What is height of light pole?
The pole’s height The street light pole needs to be of the correct height so as to provide the appropriate lighting density. In most cases, street pole heights range from 9 to 14 feet. Ideally, the street light pole should provide sufficient light without there being an excessive glare.
What is the distance between a street light pole?
Distance between each Pole (D) is 50 Meter. Required Illumination Level for Street Light (L) is 6.46 Lux per Square Meter. Luminous efficacy is 24 Lumen/Watt. Maintenance Factor (mf) 0.29, Coefficient of Utilization Factor (Cu) is 0.9.
How to calculate the size of a street light?
Required Street Light Area to be illuminated (A) is 1 Square Meter. Required Streetlight Watt = (Lux per Sq.Meter X Surface Area of Street Light) / Lumen per Watt. Required Streetlight Watt = (6 X 1) / 20.
How big of a light pole do I Need?
If higher light levels are needed, the spacing should be calculated with lighting design software. 50 ft. poles with 400W EQ LED luminaires may be spaced 270 ft. apart to provide the minimum recommended freeway illuminance levels. This will extend up to 60 ft. across the roadway from the luminaire.
What should the spacing be for freeway lights?
Standard Spacing for Freeways and Complete Interchange Lighting. If higher light levels are needed, the spacing should be calculated with lighting design software. 50 ft. poles with 400W EQ LED luminaires may be spaced 270 ft. apart to provide the minimum recommended freeway illuminance levels. This will extend up to 60 ft.