. The Street railway journal . FIGS. 55 AND 56.—TWO VIEWS OF CHARING CROSS SWITCHBOARD similar to those used in railway signal work. These switchesare erected in a masonry structure, with each pole and the oiltank, in which it is immersed, in a separate fireproof compart-ment. There are two stationary contacts per pole, one con-nected to the incoming lead and the other to the outgoing leadof the same phase, while the movable contact for each pole con-sists of a U-shaped copper piece fastened to the end of a stoutwooden rod. The wooden rods are fastened at their upperends to a common cross bar,
. The Street railway journal . FIGS. 55 AND 56.—TWO VIEWS OF CHARING CROSS SWITCHBOARD similar to those used in railway signal work. These switchesare erected in a masonry structure, with each pole and the oiltank, in which it is immersed, in a separate fireproof compart-ment. There are two stationary contacts per pole, one con-nected to the incoming lead and the other to the outgoing leadof the same phase, while the movable contact for each pole con-sists of a U-shaped copper piece fastened to the end of a stoutwooden rod. The wooden rods are fastened at their upperends to a common cross bar, which, through a system of levers being adjacent to the main oil switches and similar in ap-pearance. SWITCHBOARD PANELSOne-third of the total number of sub-stations supply currentto two or more contingent or independent railways, making itnecessary to meter separately the power supplied to each road,whether for traction, tunnel and station lighting or use of an insulated return, iry addition to these metering
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
