Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1402
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 ormotor is independent of the others and may be turned.on or off without disturbing the others. A diagram of such a system is…
