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- · New York, T. Audel · leaf 135
Pic. 972.—Method of making a series ■loop service connection. … P G. 973.—Parallel service connection. Sen,4ce wires tapped to the main wires, are ruri to insu-lators on an auxiliar> cross arm, thence to insulators on the side of the building, andthrough the drain tube to the service switch. 824 HAWKINS ELECTRICITY on the cross arm so as to prevent the…
Electrical engineering
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