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 316
the speed (miles per hour) by the number of orfraction of an hour that the train moves at this speed.In the same way to get the actual power consumed in 310 Operating and Testing a circuit, we must multiply the watts consumed bythe length of time. An incandescent lamp taking 55 watts will, in… … Figure 183 power (746 watts) in use for one hour will require746 watt-hours. The watt-hour is too small a unit forcommercial purposes and the kilowatt hour, or 1,000watt-hours, is generally used. While it will be seen that there is a decided differ-ence between the terms ^Svatt and ^watt-hour,still…
Electrical engineering · Electric testing
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