International Library of Technology · Scranton, International Textbook Co. · leaf 674
metimes make it desirable to installwires for a very low price, for temporary or occasional use.In such installations, the efficiency is of comparatively littleimportance, but the proper regulation and uniform voltageat the lamps are as important as in permanent work. 11. Let us take a case, such… … Fig. 2. burned at the same time. In such a case, it may be eco-nomical to allow as much as 12.5 per cent, drop on the linesand use 100-volt lamps on 112.5-volt service. We willrun but one pair of feeder lines around the building, a dis-tance of 1,000 feet. We desire to have the drop on theselines…
Electrical engineering
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