Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 379
Distribution Curves for Commercial ArcLamps Used in Street Lighting 339 76 ELECTRIC LIGHTING Illumination Curves. A series of curves known as illuminationcurves may be readily calculated, showing the illumination in foot … X)2l; .022B .026 Fig. 53. Illumination Curves Drawnfrom Data Given in Fig. 52 candles at a given distance from thefoot of the pole supporting the lamp.Illumination curves corresponding tothe distribution curves in Fig. 52 aregiven in Fig. 53 where A, B, andC correspond to A, B, and C in Fig.52.…
Electrical engineering
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