. Electrical world. m are eight wire fuses. Of these eight fuses, four are con-stantly under pressure, the remainder being held in reserve, so thatin case of a burning out no interruption of service will occur. The high-tension mains to Riva do not proceed by the most directroute, as that has been utilized for state telegraph wires. The cityis reached by a circuitous route over the rough surface of the moun-tain side and along the cliffs of the Lago di Garda. The mains are?carried on triangular iron brackets whose feet are imbedded in the FIG. 8.—PENSTOCK. on wooden poles and double bell insul
. Electrical world. m are eight wire fuses. Of these eight fuses, four are con-stantly under pressure, the remainder being held in reserve, so thatin case of a burning out no interruption of service will occur. The high-tension mains to Riva do not proceed by the most directroute, as that has been utilized for state telegraph wires. The cityis reached by a circuitous route over the rough surface of the moun-tain side and along the cliffs of the Lago di Garda. The mains are?carried on triangular iron brackets whose feet are imbedded in the FIG. 8.—PENSTOCK. on wooden poles and double bell insulators. The poles are 36 feetlong and the tops are charred. The mains are fitted with homedlightning arresters. The transformers are in fire-proof rooms, and each has a four-pole switch for the high-tension, and another one for low-tension,and one each in Tarbole and St. Giacomo. Low-tension wires arecarried on wooden poles and brackets on the sides of houses, thewires used being from 3-16 in. to f^-in. Fig. 9.—Sections of 300-HP Turbine. \y sides of precipices, and where permissible on iron and wood poles,of which, however, few are used. There are three wires and oneneutral wire, each of hard drawn copper and j4-in- diameter, andsupported by double bell insulators. The high pressure mains enterat a tower from which an underground iron armored lead-coveredcable-of four wires passes to the transforming stations of the cable is laid in sand under tile, covered by earth. At the two Arc lamps of 800 candle power swing from graceful candelabraor from suspension wires. They are 20 ft. above the street. Theexposed incandescent lamps are also mounted on candelabra, on armsor on masts and are of 32 candle power. They are connected be-tween one phase and the neutral wire and are in a no-volt circuitThe power plant is in constant operation day and night except fromnoon to two oclock on Sunday. 36 ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. i. The Gas That Failed
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
