Mill and factory wiring

Mill and factory wiring

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Richard George Devey. lamps to be wired in series. Taking a 440-volt circuit, it is necessary to decide, in the first place, how many lamps, whether two, three or four, are to be wired in series. At first sight the combination of two 220-volt lamps anbsp;...

Title:Mill and factory wiring
Author:Richard George Devey
Publisher: - 1911


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