Modern electrical construction; a reliable, practical guide for the beginner in electrical construction, showing the latest approved methods of installing work of all kinds according to the safety rules of the National board of fire underwriters (1905)
Horstmann, Henry C[harles], 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. J. Drake & Co. · leaf 121
lSjT … Z5L rS 23 ^:§ O i l: Figure 62 CONSTANT POTENTIAL SYSTEMS. 119 wires the other. The middle wire must carry as much cur-rent as both outside wires combined and should have a carry-ing capacity equal to them. It should be remembered that awire containing simply twice as many circular mils does…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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