International Library of Technology · Scranton, International Textbook Co. · leaf 298
Fig. 6. 6 ELECTRIC LIGHTING. 17 5. The Westinghouse Company make use of a high-tension switch in which the terminals are mounted at eachend of a porcelain cylinder. A copper rod or plungerpasses through these contacts or bushings and completesthe circuit. When the plunger is withdrawn, the arc…
Electrical engineering
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