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 533
ge direct current work,even on lines of limited extent. The catenary type of construction was originally designed by theWestinghouse Company in connection with their single phase railwayequipment designed for operation with line pressures from 3,300 to11,000 volts. There are two general classes of… … Fig. 3,699.—Anchorage for double track span wire catenary construction. The span wireconstruction is more expensive than the bracket construction and not as satisfactory, asit requires longer poles and produces a more severe loading of the poles, than bracketsuspension. It is used only where the…
Electrical engineering
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