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 158
tion that wiU pass inspection. 846 HAWKINS ELECTRICITY Ques. What provision should be made in rooms wherelamps are suspended from the ceiling? Ans. A switch should be placed at a point where it will be convenient for any one entering to turn on the light.. Ques. Where are receptacles usually… … Fig. 991.—Ceiling button. If a lamp be needed not more than 3 feet from the direct line of tht.wires, it can be hung where required by means of a ceiling button, as shown in the figure, butthe lamp cord must not be used to run lamps in this way more than two or three feet fromthe rosette. Ques.…
Electrical engineering
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