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 346
of Section Insulator Used at Intervals in Trolley Line pole is greater than that of the iron pole, which is advantageous.Fig. 191 shows a simple span-wire construction for an interurbanroad. In this there are no strain insulators shown; if used theywould be inserted in the span wires near the… … moulded micaFig. 190. Section of Strain Insulator track. Figs. 192 and 193 show how this may be accomplished insimple cases and the same general principle will apply in more com-plicated ones. To the trolley wire are attached a number of curvehangers or pull-overs. A curve hanger is an ordinary…
Electrical engineering
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