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 81
ould be boxed in or run in a pipe as shown infig. 854, the covering extending 6 feet above the floor. INSIDE WIRING 769 When placed inside a box there should be a clearance of at least oneinch around the wires; the box should be closed at the end as shown,and the wires protected where they enter… … Pig. 854.—Methods employed in open wiring when run vertically on walls. Either a boxcasing or iron pipe should be used to protect the wires. The covering need only extendatx feet above the floor. Oues. What kind of incandescent lamp receptacleor wall socket is best adapted to exposed wiring? Ans.…
Electrical engineering
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