Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 41
and weight may be used. If the neutral wire is made one-half the size of the outside conductor, as is usually the case in feed-ers, the amount of copper required is A of that necessary for thetwo-wire system. For mains it is customary to make all three con-ductors the same size, increasing the…
Electrical engineering
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