Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 348
Fig. 194. Bracket I-ine Construction wires; although not absolutely necessary, they greatly improve theinsulation of the hne and should in general be used. In the simplercurve suspension shown in Fig. 193, the pull-over wires are attached … Fig. 195. One Type of Bracket for Trolley Line to another wire which spans the two poles. This is a cheaper eon-struction than the other but not as substantial. Bracket Construction. A cheap method of construction con-sists in supporting the trolley wire from brackets mounted on a 305 208 ELECTRIC…
Electrical engineering
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