Street Lighting Design Calculation

Luminaries are properly selected and mounted on a location most feasible and effective with minimum cost.

Street lighting design calculation.

Street illumination level in lux e al x cu x mf w. 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. 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. The top standard of road lighting design is rp 8 00 which is published by ies american standard.

Luminaire of each pole. 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 height of pole is 26 5 foot. The width of road is 11 5 foot.

Digital design files from agi32 are to be provided to the city along with line loss. Also excel file attached. This calculations based on high pressure sodium hps lamp type which is. 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.

For a 230 volts system a voltage drop of 5 is allowed although in extreme cases 15 voltage drop is sometimes tolerated. After calculation of the intensity we put all the. 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. 1 calculate distance between each street light pole.

Typical calculation of road lighting. Calculate distance between each streetlight pole having following details road details.