Use of Programmable Calculators In the Design of Power Plant Lighting

The procedures for calculating illuminance by Average Lumen and Point Lighting are described. The normal procedures of a design office in performing lighting calculations are described, showing the applicability of programrable calculators to the repetitive calculations required for optimizing design. Five programs are described, some developed for engineer use and some for use by technician/ designers. The choices, advantages, and disadvantages of using interpolation techniques for applying tabulated data fran IES Handbook, or representing these data by families of fitted curves, are presented. Use of Point Lighting programs to examine illuminance uniformity and to adjust luminaire locations is described.