Modern buildings : their planning, construction and equipment (1905)
Middleton, G. A. T. (George Alexander Thomas) · London : Caxton Publishing Company, Limited · leaf 200
ich the mains are each circuit can be arranged to carry a limited current. taken through the building, and branches are taken The Three- Wire System. — When the number of from them to local distributing boards. The objections lamps to be lit reaches ioo or more it is often to this are the same as… … ioo Voir of a few simple diagrams. Thus Fig. 141 represents number of buildings lie scattered about a large site, two circuits of conductors and lamps supplied by two the three-wire system may be used with advantage in separate dynamos, each at, say, 100 volts pressure. If the external mains, but…
Building · Architecture
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