Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 420
e sectionalintensity of a one candle power beam at a distance of one foot from the lamp. The metercandle is the sectional intensity of a one candle power beam at a distance of one meterfrom the lamp. The meter candle is one lumen per square meter and it is sometimescalled the lux. A candle foot is… … 180° 170° 160° 150 I80°I70 160° 150 m Figs. 3,453 and 3,454.—Photometric characteristics of the arc. In an ordinary arc ^amp,the greatest amount of light, about 85 per cent, of the total light, is given out by thehighly heated crater at the tip of the positive carbon. The arc stream is almost…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
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