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), 1833-1928 · New York : T. Audel & Co. · leaf 566
s due to dirt, moisture, metal dust in the controller,or the too slow turning off of the controller. Open the over-head switch and blow out the dust from the ring terminals,also remove all dust at the lower ends of the controller and seethat it is dry. Should the lamps not light upon turning the…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.