International Library of Technology · Scranton, International Textbook Co. · leaf 450
Fig. 45. the lamp and the pole fixture and also to keep the linewires spread apart. … Fig. 46. §18 ELECTRIC LIGHTING. 83 Fig. 46 gives a view of a Cutter insulating cross-arm.Since the introduction of high-voltage enclosed arcs and theoperation of a large number of lamps per circuit, it is essen-tial that each lamp beprovided with a suspen-sion that will give highinsulation. The…
Electrical engineering
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