. Electric railway journal . ! BENDS AND POLE| ^ROUTEDIN --. ;. Si 10 ORAN6EBUR6i DUCT BENDS Sectional Elevation North Elevation of 2500 amp. per track, which would be drawn if all ofthe cars should start at once. Over each of the four tracks so far installed (thereis space on the lower deck for two future subway tracks)is hung a No. 0000 grooved trolley wire, extra hardrolled. Each is paralleled for 2500 ft. in the center ofthe bridge with a 500,000-circ. mil feeder, tapped in atfrequent intervals. A 1,000,000-circ. mil feeder cross-connects these auxiliary feeders and leads to the powerp
. Electric railway journal . ! BENDS AND POLE| ^ROUTEDIN --. ;. Si 10 ORAN6EBUR6i DUCT BENDS Sectional Elevation North Elevation of 2500 amp. per track, which would be drawn if all ofthe cars should start at once. Over each of the four tracks so far installed (thereis space on the lower deck for two future subway tracks)is hung a No. 0000 grooved trolley wire, extra hardrolled. Each is paralleled for 2500 ft. in the center ofthe bridge with a 500,000-circ. mil feeder, tapped in atfrequent intervals. A 1,000,000-circ. mil feeder cross-connects these auxiliary feeders and leads to the powerplant near by. The feed wires are exposed and arestrung on the cross beams of the bridge, being supportedon G. E. rack-type switchboard insulators. The trolley wire is mounted on spring-type OhioBrass hangers spaced from 10 to 12 ft. apart. Theseclamp the wire loosely to permit the motion resultingfrom expansion and contraction. The troughs are ofhardwood, securely bolted together and either clampedfirmly against the concrete roof or suspended from thesteel
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
