The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 99
rent from all the dynamos. Thedistributing leads are connected to the bus wires. In the three-wire system there are three; in the two-wire systemthere are two bus wires. The name is undoubtedly derived from * omnibus. The bus wires may be divided into positive, negative, and, in thethree-wire… … Fig. 72. Buzzer. by enclosure in a resonating chamber, resembling a bell, but whichis not struck or touched by the vibrating parts. Sometimes asquare wooden box is used as resonator. B. W. G. Abbreviation for Birmingham Wire Gauge. (SeeWire Gauge^ Birminghain.) STANDARD ElvECTRICAIy DICTIONARY. 95…
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