Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. J. Drake & co · leaf 240
ght linethrough the space covered at such point as to leavean equal number of lights on each side of it, as inFigure 24. If the lights are to be fed by diagonal runs, theshortest runs can be quickly found by bearing in ELECTRICAL TABLES AND DATA mind that from the cut-out center, or from any… … Figure 25. of lamps shown in Figures 24 and 25 is identical, butFigure 25 requires about 10 per cent less materialthan Figure 24. The relative economy of runningmains or branch circuits can be determined by TableLXXIV, which gives the equivalent in mains of vari-ous sizes and branch circuits of 660…
Electrical engineering
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