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 454
Figs. 3,499 and 3,500.—Overhead construction on the Indianapolis & Louisville 1,200 volt line.The line throughout is of the single bracket construction on tangents, as shown in fig. 3,499and of the span type at curves, as in fig. 3,500. The poles are spaced 90 ft. apart on tangentsand 60 ft. on…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
