International Library of Technology · Scranton, International Textbook Co. · leaf 272
700—Feeders C <c Drop in Feeders 5% 4^of Lamp Vo/tage … Fig. 47.(b) The drop in mains D or E will be 220 X .035 = 7.7 volts. Thearea of mains D will be A = 21.6 X 500 X 25 7.7 = 35,065 cir. mils. Ans. This would require a No. 5 wire, and a No. 8 or 9 would be sufficientfor the neutral. (c) The area of mains E will be A = 21.6 X200 X 100 7.7 = 56,104…
Electrical engineering
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