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 1398
nserted in or cut out of the circuit. Thissystem is also called the constant current system. The samecurrent passes through all of the lamps, and the differentlamps are also independent of each other. Current Distribution 1369 At the present time the series system is used mostly foroperating high… … Fig. 654 SERIES MULTIPLE SYSTEM was at one time employed to run incandescent lights froma high tension series arc light circuit, but on account of thedanger connected with the use of incandescent lamps, op-erated from a high tension arc lamp circuit, the system hasbeen abandoned. It is not approved…