International Library of Technology · Scranton, International Textbook Co. · leaf 266
Fig. 42. /. III.—17 68 ELECTRIC LIGHTING. 16 a number of the shunt coils are liable to be burned out.The shunt coils are mounted in cast-iron boxes, which alsoserve for the base of the bracket supporting the lamp.Fig. 42 shows the shunt-coil box. The hole a is tapped … Fig. 43. to receive the gas-pipe bracket, as shown in Fig. 43. Streetincandescent lamps are usually provided with white enam-eled reflectors and are mounted about 10 to 15 feet abovethe o-round. SUMMARY. 76. The methods of distribution described above repre-sent those commonly used in practice, and…
Electrical engineering
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