Publication: Western Electrician
Chicago, IL, United States
Transmission Line from Niagara Falls
BY ORRIN E. DUNLAP.
A power-transmission line that may become the greatest in the United States is being constructed from Niagara Falls, N. Y., to Syracuse in the same state. Syracuse is 157 miles east from Niagara Falls, and for this entire distance the new transmission line will run through a thickly populated section of country in which there are numerous cities and villages that would like to be supplied with electricity from Niagara. This power line is being erected by the Niagara, Lockport and Ontario Power Company, which company will receive its power supply from the station of the Ontario Power Company at the water's edge in the gorge on the Canadian side of the river. The Ontario Power Company is understood to be under contract with the Niagara, Lockport and Ontario Power Company to deliver it power in large blocks at the international boundary line. Extending from the transformer or distributing station of the Ontario Power Company on the Canadian side of the river, the Ontario Power Transmission Company, Limited, has built a transmission line northward beyond the city of Niagara Falls, Ont., to a point below Foster's Flat, on the Canadian side, or better known by the name of "Devil's Hole" on the New York side.
At this point the cables of the line drop from the towers to cantilever arms that project out from the edge of the high bank and then drop to steel towers located near the water's edge in the gorge. From the top of the towers on the Canadian side to the top of similar steel towers on the New York side, the span is about 600 feet, and the cables are stretched over the river. Passing the towers on the New York shore, the cables run up to cantilever arms projecting over the edge of the high bank. At this point the cables pass over the Lewiston track of the New York Central, built midway between the top of the high bank and the water's edge. At the outer edge of the track three steel towers have been erected, and these are connected by wire at the top to prevent the cables dropping on to the track in case of accident. At the top of the high bank on the New York side the cables pass to poles and onward to a double row of steel towers that extend eastward to Rochester. These towers are placed at intervals of 550 feet, and are of tripartite construction, the three legs being of 2 1/2-inch tubing filled with concrete and sunk five feet below the surface of the ground in concrete footings. The total weight of each tower is about 2,800 pounds. It is said that the greatest possible strain to which the towers will be subjected is about 4,700 pounds, which considers the weight of the cables, a wind of 100 miles an hour, and a coating of ice or sleet. From Niagara Falls to Lockport the company's right-of-way is 300 feet wide. From Lockport to Rochester it is 200 feet wide, and from Rochester to Syracuse it is 100 feet in width. In all, there will be about 1,500 steel towers on the work, and in addition to these there will be something like 2,500 "A" frames between Rochester and Syracuse, which will serve in place of the towers for the cable supports, along a railroad, until the private right-of-way has been perfected. The steel towers are about 55 feet high, and at a height of 49 feet they have an arm which supports two insulators, the third insulator being on the apex of the tower, as seen in the accompanying illustration. The insulators have two petticoats and a hood, the latter being the largest, and having a diameter of 14.5 inches. Each insulator is about 28 inches high and has a weight of about 75 pounds.