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 71
Ques. How shouldsingle throw switchesbe installed? Ans. They should opendownward so gravity willkeep them open. •Fl S. 2.199 and 2,200.—GeneralElectric triple pole solenoidoperated, single throw remotecontrol switch, and push but-ton switch for operating same.h is a self-contained unitwith two sets…
Electrical engineering
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