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 76
pe of disconnectingswitch is intended for wall mounting. The live parts are mounted on porcelain insula-tors carried on a cast iron yoke or base, forming a simple and substantial construction. Ques. What are disconnecting switches? Ans. Knife switches in series with other switches so that… … Fics. 2,209 and 2,210.—Westinghouse disconnecting switches for pressures over 3,.;o • volts
Electrical engineering
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