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 537
clamp the trolley wire, and the other secured either to the bracket arm for pressures upto 6,600 volts, as shown at B, or to an insulator and bracket, for higher pressures, as shownatC, fig. 3.709 2,628 HAWKINS ELECTRICITY Ques. What kind of messenger cable is used ? Ans. The messenger, or… … ^HERCULES^AMCHOR THIMBLE THAN* Pig. 3,712.—Catenary construction at anchor span. Inerecting, the clamp used for the mes-senger cable is placed at the center of a span, so as to grip both the messenger cable and thediagonal anchor cable. Two pull off hangers are placed each side of the messenger…
Electrical engineering
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