. The street railway review . SPECIAL FEED RAILWAY. -CHICAGO. WESTERN AVENUE CONDUIT UNDER CONSTRUCTION. ^)^\mlw^li\e^ 79 In feed line construction, no cables larger than 350,000circular mils are used, as it is thought that the sag andtrouble in maintaining a neat and substantial line withlarger cables, more than balances the advantages of theirgreater size. The main pole line of this company runsthrough an alley between State street and Wabashavenue, so that wooden poles are used. Glass insulators,designed by Mr. Knox, specially for this work, areemployed. They are sho
. The street railway review . SPECIAL FEED RAILWAY. -CHICAGO. WESTERN AVENUE CONDUIT UNDER CONSTRUCTION. ^)^\mlw^li\e^ 79 In feed line construction, no cables larger than 350,000circular mils are used, as it is thought that the sag andtrouble in maintaining a neat and substantial line withlarger cables, more than balances the advantages of theirgreater size. The main pole line of this company runsthrough an alley between State street and Wabashavenue, so that wooden poles are used. Glass insulators,designed by Mr. Knox, specially for this work, areemployed. They are shown herewith. Where feedersare carried along iron side poles, wood cross arms areused. This is a manifest advantage as to insulation, andit would take a close observer to notice the difference inappearance between it and the iron cross arm. For a return circuit, reliance is placed entirely onheavy bonding, except near the power station, wheresupplementary cables of 1,500,000 circular mils area arelaid in the ground between the tracks. Each rail isdouble bonded with No. 0000
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
