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 1396
and the switch S is somuch less than that of the arc lamp that practically allthe current flows through S. Wiring Systems.—The system of wiring which is mostgenerally used for incandescent lighting and ordinary pow-er purposes is called the two-wire parallel system. In thissystem of wiring the two… … FiG. 651 tained between the two wires, and the number and size oflamps, or other apparatus, connected to these two wires,determine how many amperes are required. Each lamp or motor is independent of the others and may be turnedon or off without disturbing the others. A diagram of such a system is…