. The Street railway journal . plantand system of steam piping installed in connection with theseturbine-driven units, provision is made for separation of thesteam supply from the general supply for the 5000-kw unitsand for furnishing the steam for the turbine units througheither of two alternative lines of pipe. The 11,000-volt primary current is conveyed through paperinsulated lead-sheathed cables to transformers located in fire-proof compartments adjacent to the platforms of the passenger stations. These transformers deliver current to two separatesystems of secondary wiring, one of which i
. The Street railway journal . plantand system of steam piping installed in connection with theseturbine-driven units, provision is made for separation of thesteam supply from the general supply for the 5000-kw unitsand for furnishing the steam for the turbine units througheither of two alternative lines of pipe. The 11,000-volt primary current is conveyed through paperinsulated lead-sheathed cables to transformers located in fire-proof compartments adjacent to the platforms of the passenger stations. These transformers deliver current to two separatesystems of secondary wiring, one of which is supplied at apotential of 120 volts and the other at 600 volts. The general lighting of the passenger station platforms iseffected by incandescent lamps supplied from the 120-volt sec-ondary wiring circuits, while the lighting of the subway sec-tions between adjacent stations is accomplished by incandes-cent lamps connected in series groups of five each, and con-nected to the 600-volt lighting circuits. Recognizing the fact. TYPE OF FISH-PLATE CONNECTION USED AT CONTACTRAIL JOINTS that in view of the precautions taken it is probable that inter-ruptions of the alternating-current lighting service will be in-frequent, the possibility of such interruptions is neverthelessprovided for by installing upon the stairways leading to pas- senger station platforms, at the ticket booths and over thetracks in front of the platforms, a number of lamps which areconnected to the contact rail circuit. This will provide lightsufficient to enable passengers to see stairways and the edges ofthe station platforms in case of temporary failure of the generallighting system. The general illumination of the passenger stations is effectedby means of 32-cp incandescent lamps placed in recessed domesin the ceiling. These are reinforced by 14-cp and 32-cp lampscarried by brackets of ornate design where the construction ofthe station does not conveniently permit the use of ceilinglamps. The lamps are encl
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
