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 72
ontrol switeh and mustalways be used, as the solenoidcoils are not intended for con-tinuous service. The powerrequired to operate the re.notecontrol switch is small, beingapproximately 1.6 amperes at110 v volts direct current, and 10amperes at 110 volts, and 6amperes at 220 volts alternat-ing… … FlGS. 2,201 and 2,202.—Palmer service switch and fust- box, f^r either plug, cartridge oropen link fuses. Fig. 2.201 illustrates the box in open position for the inspection of fuses,etc. The cover is held open by a simple lock so that the switch cannot fall closed bygravity, the box may be mounted…
Electrical engineering
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