Interborough Rapid Transit the New York Subway Its Construction And Equipment
Interborough Rapid Transit the New York Subway Its Construction And Equipment
Ny Interborough Rapid Transit Company New York
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The thickness of insulating wall is %2 of an inch and the conductors are supported upon porcelain insulators. From the power house to the subway at 58th Street and Broadway two lines of conduit, each comprising thirty-two ducts, have been constructed. These conduits are located on opposite sides of the street. The arrangement of ducts is 8x4, as shown in the section on page 96. Alternating Current Distribution to Sub-Stations Power House Ducts and Cables Conduit System for Distribution EXTERIOR... OF SUB-STATION NO. I I PAGE 108 E R B O R O U G H RAPID TRANSIT THE SUBWAY obstructions, such as pipes, sewers, etc. , of which it was necessary to take account in the construction ot the stations. The plan shown on page 98, however, is typical. The necessity of passing the cables from the 32x2 arrangement of ducts along the side of the tunnel to 8 x 8 and 16x4 arrangements of ducts beneath the passenger platforms involves serious difficulties in the proper support and protection of cables in manholes at the ends of the station platforms.
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