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The street railway review . ines, it requires two panels to each of them.As there are twelve of these, a simple arithmetical equa-tion of 2 A 12 = 24, accounts for

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Download this stock image: . The street railway review . ines, it requires two panels to each of them.As there are twelve of these, a simple arithmetical equa-tion of 2 A 12 = 24, accounts for all but two panels andthese control, each, one 4,000 light machine. Two field rheostats, field switches, dynamos, changingswitch, ammemeter, pilot lamp and voltmeter, composeeach panel. The feeder system attached to the switch board iscomplete in every detail and will be examined with in-terest by every visiting electrician. The Westinghouse board is 71 feet long by 9 feet 2%inches high, while the lower board measures 38 by 11feet - 2CR5B4X from Alamy's library of millions of high resolution stock photos, illustrations and vectors.