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 69
Fig. 3,877.—Simplex arc lamp. The carbon holders are furnished to accommodate carbons ofy<z to Y± diameter and 12 upper and 6 lower in length, carrying capacity 75 amperes.There are eight adjustments, six being accessible from the back of the lamp house; andtwo, to alter the angle of the carbon,… … Fig. 3,878. Powersarc lamp. Carrying capacity 100 amperes. All adjustments are accom-plished from the outside of the lamp house. Carbon range from % to % m diameter, 0length for lower and 12 length for upper carbon. The carbon may be placed at any angledesired, and can be moved independently of…
Electrical engineering
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