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 378
he arc lamp describedin the section on thissubject. As illustrativeof the use of such curvesFigs. 52 and 53 are in-cluded. Curve A shows distribu-tion curve for a 9.6-ampere,open direct-current arc. .Curve B shows distribu-tion curve for a 6.6-ampere,d. c. enclosed arc. Curve C shows distribu-tion… … 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
Electrical engineering
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