Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1401
.NWWWW NS\\\s\\v\NX\SN^-y\^^S^V:?^^\\^^ 5 p^ ^^^^^^:^^^^^^^^^^^^^^^^^^^^^^^^^^^ BranchSuUdin^ mams … , ^VvN- > , Fig. 657 any number of other wires, and the feeders become a partof the multiple series, multiple and three wire systems. Distributing mains are the wires from which the wiresentering buildings receive their supply. Service wires are the wires that enter the buildings.■ The center of…
