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 167
ILDINGS 855 main supply of current it is important to have them well pro-tected as they usually run up side walls. The underwriters make numerous restrictions against open ormoulding work on brick walls and require good protection, and this isan additional reason for piping the mains and feeders.… … Fic;. 1,002.—View of outlet pocket showing base board, and cover supports in position. If a circuit be wired with the full allowance of lamps, no additionscould be made without violating the underwriters requirements. Ques. If concealed wiring is to be installed in a finishedbuilding what should be…
Electrical engineering
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