Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 73
in-cluding also the proper number and size of switches andfuses which are connected to the bus-bars. The variouscircuits are then connected to the switches. Two-Wire Service.—Fig. 30 is a diagram illustrat-ing a typical two-wire installation, including the fol-lowing: Line fuses. Line switch.… … TO CIRCUIT be used a number of double-pole, double-branch, com-bined cut-outs and switches mounted on the usual formof porcelain base as illustrated in Fig. 31. Wherever MOTION PICTURE ELECTRICITY 67 panel boards or cut-outs are installed, they should bemounted in a suitable box, which should be…
Motion picture theaters · Electric lighting
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