International Library of Technology · Scranton, International Textbook Co. · leaf 456
Fig. 55. a single porcelain insulator, as shown in Fig. 55, or if higherinsulation is required between the terminals of the break,two insulators connected by a short length of wire may be … Fig. 56. used. Fig. 56 shows another method of accomplishing thesame result by using a special porcelain insulator that ismade for this purpose. 18 ELECTRIC LIGHTING. 89 SPECIAL APPLICATIONS OF ARC LAMPS. 102. Before leaving the subject of arc lamps we willtake up, briefly, a few of the special…
Electrical engineering
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