International Library of Technology · Scranton, International Textbook Co. · leaf 230
Fig. 17. wires belong to different companies, it is necessary to insu-late the wires from each other. In such a case, a specialinsulating trolley crossing, Fig. 17, must be used. 1S5. Section Insulators.—Section insulators are used atthe junction of two divisions that are fed by separate feeders … Fig. 18. from the power house. These section insulators are com-monly known as line circuit-breakers or simply linebreakers. One form of line breaker is shown in Fig. 18.
Electrical engineering
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