Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 289
ifferent ends temporar- Testing 283 ily together until two wires are found that cause anindication on the testing instrument. The most con-venient instrument for this purpose is an ordinarycall bell and battery, as it can be heard throughoutdifferent rooms. After the wires coming from thecut-out… … Figure 172 dicates that we have found the wires thus connectedtogether. In this manner by proceeding from outlet tooutlet the meaning of every wire can be determinedand connections made as required. As a precaution,before beginning to test out in this manner, it will bewell to separate all wire so…
Electrical engineering · Electric testing
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