. Electrical world. luvial earth, of a length of three-quarters of a mile connects the two,piercing the side of the lake. Lake de Chalain is a natural reservoirfed by springs and small streams and its level varies about 32 the year. It has a capacity of 70,000,000 cu. ft. and furnishesa flow of 565 cu. ft. per second, the year around. Thus the normalvolume, if utilized, at the Sant Mortier power house, where the fallis ft., would produce 3,000 hp; 2,500 hp is the minimum andthis is at a fall of ft. during high water, when the loss wouldbe larger but for the equalization cau
. Electrical world. luvial earth, of a length of three-quarters of a mile connects the two,piercing the side of the lake. Lake de Chalain is a natural reservoirfed by springs and small streams and its level varies about 32 the year. It has a capacity of 70,000,000 cu. ft. and furnishesa flow of 565 cu. ft. per second, the year around. Thus the normalvolume, if utilized, at the Sant Mortier power house, where the fallis ft., would produce 3,000 hp; 2,500 hp is the minimum andthis is at a fall of ft. during high water, when the loss wouldbe larger but for the equalization caused by a greater volume ofwater. .All the concrete work and excavation, including the canal, tunneland plant building was done by M. Yoanny. The turbines were a slope against the water of 1 to 10, so that the greatest waterpressure is only 85 pounds per sq. in. This dam rests upon solidrock. On the right side of the dam are three sluices for admittingwater to the supply canal, while on the other side of the dam is a. FIG. 2.—\ IhW OF EXTERIOR OF POWER HOUSE driftwood canal 754 ft. long, parts of it of half tunnel section blastedin the rock of the mountain. It is 36 ft. wide and has a pitch ofI to 25. The supply canal, which has a length of 4,920 ft., is of rectangularcross-section, ft. wide and ft. deep. For 410 ft. of itslength it is of tunnel construction. The whole canal is of is provided with several overflow sluices for conducting awaysurplus water, which runs into the canal from the sides of the moun-tain. Two overflows are placed near the dam. The whole canal maybe cut off by three sluice gates which work vertically against the sluice gates at the sides of the canal are attached J^-in. sheet-iron strips or angles, which are pressed against the wall by thewater, thus making a close joint. The canal empties into a small
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
