Street Lighting Design Calculation

Wattage of luminaries is 250 watt lamp out put ll is 33200 lumen required lux level eh is 5 lux coefficient of utilization factor.

Street lighting design calculation.

Street lighting schemes never brings the same appearance of daylight but provide sufficient light for people to see important objects required for traversing the road. Street lighting design in lighttools 2 how street lighting calculations are performed slu assumes that street lamps are far away from the surface that they illuminate so their intensity distributions positions and orientations are the only required data to calculate the test metrics in addition to the rtable. This voltage drop calculations is valid for street lighting landscape lighting and site lighting using table mv a m and r x method for single three phase. Digital design files from agi32 are to be provided to the city along with line loss.

Street lighting is to be designed using the illuminance method for calculations prepared with agi32 software. The height of pole is 26 5 foot. Calculate distance between each streetlight pole having following details road details. Street illumination level in lux e al x cu x mf w.

Street lighting design is the design of street lighting such that people can safely continue their travels on the road. For a 230 volts system a voltage drop of 5 is allowed although in extreme cases 15 voltage drop is sometimes tolerated. Typical calculation of road lighting. This calculations based on high pressure sodium hps lamp type which is.

Also excel file attached. The width of road is 11 5 foot. Many parameters shall be considered in road lighting calculations this post only provide brief of this calculations by both manual and software methods the following procedure for software only. The top standard of road lighting design is rp 8 00 which is published by ies american standard.

1 calculate distance between each street light pole. Calculate voltage drop of cable for street lighting poles voltage is 230 400 v 3ph power factor is 0 85 allowable voltage drop up to 3 max.