. Electric railway journal . Fig. 1—Harlem Cables—Component Parts them, simultaneously, are of more than passing interest owingto the engineering features involved. A large portion of the trackage of this company lies in theBronx, whereas the power station is on Manhattan necessitates the transmission across the Harlem River ofall current to the substations in the Bronx. Up to September,10,10, 10 three-conductor No. 0000 paper-insulated, lead-cov-. Fig. 2—Harlem Cables—Special Cradle Construction ered and armored cables at a pressure of 6600 volts gave thedesired transmission capac
. Electric railway journal . Fig. 1—Harlem Cables—Component Parts them, simultaneously, are of more than passing interest owingto the engineering features involved. A large portion of the trackage of this company lies in theBronx, whereas the power station is on Manhattan necessitates the transmission across the Harlem River ofall current to the substations in the Bronx. Up to September,10,10, 10 three-conductor No. 0000 paper-insulated, lead-cov-. Fig. 2—Harlem Cables—Special Cradle Construction ered and armored cables at a pressure of 6600 volts gave thedesired transmission capacity, but increased trackage, trafficand heating load, with a desire to establish relief cables, ledto the installation of seven additional cables of the same ca-pacity and type. The original cables were installed betweencable houses one at a time, tested and tagged and put in this method of installation where a large number ofcables is involved is not economical or good practice from an engineering standpoint was brought out in the later installa-tion, the plans for which were materially altered. The contract for manufacturing the cables as well as fortheir installatirn was let to the Waterbury Company, of NewYork. During preliminary operations by this company it wasfound expedient to remove one of the then existing cables. Asuitable steam lighter with boom, hoist and tackle was broughtto the ground and the heaving lines were attached
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