Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1267
& vl to … u—> a, ^ 4.—:$—»i Fig. 557construction of fig. 547 for large capacity Switch Boards 1233 shown in Fig. 561, while Fig. 562 has an instrument andswitch for each circuit. Fig. 563 gives the diagram of these feeder panels andFig. 564 gives the electrical connections. BOCM l/?e fuse |J ! ritlZT 1 To…
