File:The Street railway journal (1904) (14573222128).jpg

Identifier: streetrailwayjo231904newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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ts, 500 ft. long, areprovided for at intervals sufficient to provide for a half-hourschedule being maintained in each direction. OVERHEAD LINEThe overhead construction shown in Figs. 3, 7 and 8 is oneof the finest features of the road. It is doubtful if a betterlooking pole line is to be found anywhere. Poles were care-fully selected as to straightness and uniformity of size. Theyare 12 ins. at the butt, 6 ins. at the top, and 36 ft. long wherethe high-voltage transmission line is to be carried. Wherethere is no transmission line they are 32 ft. long. They are set6 ft. in the ground, 5 ft. from the gage line of the nearest trackrail. Being painted black and white, as seen in engravings,and set to accurate alignment 100 ft. apart, they present a veryfine appearance. Some of these poles are Northern cedar; thebalance Southern juniper. The high-tension wires are of No.4 phosphor bronze, spaced on a 36-in. triangle, using top pinand cross-arm conduction. The insulators are the 8-in. Locke
Text Appearing After Image:
-GETTING OUT OF THE WHITE RIVERBOTTOMS FIG. 4.—WHITE RIVER BRIDGE porcelain single-petticoat pattern, carrying30,000 volts. The trolley wire is grooved pat-tern No. 0000. It is hung on flexible bracketson insulators furnished by the Ohio BrassCompany. -Parallel with the trolley for theentire length of the road is a feed wire of300,000 circ. mils. Taps to the trolley wirefrom this feeder are made every 1000 ft. Gen-eral Electric lightning arresters are placedevery 2000 ft. Every fifth pole is numberedfor the convenience of the operating depart-ment in reporting troubles and making tests.The 26,000-volt high-tension transmission linebetween the main power house and the sub-stations is carried on Locke brown porcelaininsulators, placed 3 ft. apart on a triangle,as seen in Fig. 8. The telephone wires, two 12$ STREET RAILWAY JOURNAL. (Vol. XXIII. No. 4. in number, are carried on glass insulators mounted on an ironbracket opposite the trolley bracket. The diagram showing thepower transmis

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