. The Street railway journal . ss h—9~__*\*—9~—n_ Street RuUv-iOj J< FIG. 4.—OVERHEAD CONSTRI CTION FOR SURFACE LINE UNDER ELEVATED STRUCTURE up position. It is then possible to throw in any light circuit desired by dosingany of the small double-pole switches. In the event of a burn-out of the trans-former or of the supplying cable, however, the six-pole switch is thrown down. Thelamps are then connected in two sets of five in series and ten in multiple, making itpossible to burn all the lights from the 550-volt direct-current cable, or half the lightsif so desired. In the latter cas
. The Street railway journal . ss h—9~__*\*—9~—n_ Street RuUv-iOj J< FIG. 4.—OVERHEAD CONSTRI CTION FOR SURFACE LINE UNDER ELEVATED STRUCTURE up position. It is then possible to throw in any light circuit desired by dosingany of the small double-pole switches. In the event of a burn-out of the trans-former or of the supplying cable, however, the six-pole switch is thrown down. Thelamps are then connected in two sets of five in series and ten in multiple, making itpossible to burn all the lights from the 550-volt direct-current cable, or half the lightsif so desired. In the latter case half the lights need not necessarily be those con-trolled by switches 1 to 5, or those controlled by switches 6 to 10, but can be anycombination of five switches as long as no two switches are directly opposite; forinstance, switches 1-7-3-9-5 maY oe thrown. The tunnel lights are connected to the two outside bars on the panel board, andare connected in series multiple. Where there — . siopeofroofsino are four track
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
