. The Street railway journal . be sheared off the posts before the main body ofthe car would be reached, whichwould afford an effective means ofprotection. The precautions to secure safetyfrom fire consist generally in the per-fected arrangement and installationof the electrical apparatus and thewiring. For the lighting circuits aflexible steel conduit is used, and aspecial junction box. On the side andupper roofs, over these conduits forthe lighting circuits, a strip of sheetiron is securely nailed to the roofboards before the canvas is w ires under the floor are carriedin ducts o
. The Street railway journal . be sheared off the posts before the main body ofthe car would be reached, whichwould afford an effective means ofprotection. The precautions to secure safetyfrom fire consist generally in the per-fected arrangement and installationof the electrical apparatus and thewiring. For the lighting circuits aflexible steel conduit is used, and aspecial junction box. On the side andupper roofs, over these conduits forthe lighting circuits, a strip of sheetiron is securely nailed to the roofboards before the canvas is w ires under the floor are carriedin ducts of asbestos compound (elec-trobestos) molded into suitable forms. Special precautions have beentaken with the insulation of thewires, the specifications calling for,first, a layer of paper; next, a layeri layer of cotton saturated with aweather-proof compound, and outside of this a layer ofasbestos. The hangers supporting the rheostats under the carbody are insulated with wooden blocks, treated by a special of rubber, and then. VIEW OF THE UNDERFRAME UNIT FOR THE STEEL CAR, TOSHOW SIMPLICITY AND LIGHTNESS MADE POSSIBLE BYSIDE FRAME GIRDER CONSTRUCTION process, being dried out in an oven and then soaked in an in-sulating compound, and covered with %-in. transite rheostat boxes themselves are also insulated from theangle iron supporting them. Where the wires pass through October 8, 1904.] STREET RAILWAY JOURNAL. 637 the flooring they are hermetically sealed to prevent the admis-sion of dust and dirt. At the forward end, or what is known as the No. 1 end, ofeach motor car, all the wires are carried to a slate switchboardin the motormans cab. This board is 44 ins. x 27 ins., and ismounted directly back of the motorman. The window spaceoccupied by the board is ceiled up with mahogany panels, andthe space back of it is boxed in and provided with a door ofsteel plate, forming a box, the cover, top, bottom and sides ofwhich are lined with electrobestos y2 in. thick. All of th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
