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 319
-volt service and insizes from 66 to 528 watts, giving a mean candle-power below thehorizontal of from 50 to 500 and an efficiency of from 1.38 to 1.09watts per mean hemispherical candle-power. 283 20 ELECTRIC LIGHTINGDISTRIBUTION CURVES Nature and Value. By a distribution curve for any type oflamp… … Fig. 13. Vertical Distribution Curve for Single-Loop Carbon Filament directions throughout 360 degrees in a vertical plane are given anda horizontal distribution curve in which the light given in differentdirections throughout 360 degrees in a horizontal plane are given.The mean of the values of…
Electrical engineering
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