File:The Street railway journal (1899) (14756573934).jpg

Identifier: streetrailwayjo151899newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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,000 cm.), and in the latter, where the diffi-culty is less, 50 mm. sq. (100,000 cm.). The other threesections have no feeders. In the open country the feedersare bare wire, carried on porcelain insulators, but withinthe city they are buried, insulated by a layer of jute and paper, saturated with asphalt and protected by a leadsheath and outside steel wire armor. In spite of the ex-cessive heat, which in summer is sometimes as high as38 deg. C. (110 deg. F.) in the shade, the insulation ofthe cables has remained in good condition. It is doubt-ful whether a rubber insulating cable would have givensuch good results under the same conditions of tempera-ture. The length of the underground feeders is 7400 m.(24,000 ft.), and they were supplied and installed by theSociete Industriele des Telephones, of Paris. Each of thesix independent sections into which the overhead line issub-divided is protected at the power station by an auto-matic circuit breaker, so that any short circuit on one sec-
Text Appearing After Image:
ALGIERS tion will not interfere with the operation of the rest of thesystem. The overhead line is constructed for the use ofthe Dickinson trolley, and the distance between the wireand the car axle in no case exceeds 2,\ m. (8 ft. 3 ins.).About 9.1 km. (5.6 miles) of overhead line is span con-struction, the other 6.6 km. (4 miles) bracket construction.All poles, even those in the suburbs, are steel tubes. POWER STATION Owing to the difficulty in finding a convenient site largeenough to accommodate the power station and car housestogether they have been located at different points alongthe line. The station occupies an area of 1600 sq. m. (17,-200 sq. ft.), of which 710 sq. m. (7630 sq. ft.) are taken bythe engine room, 550 sq. m. (5910 sq. ft.) by the boilerroom and coal storage bin, and 340 sq. m. (3650 sq. ft.) forthe court occupied in part by the cooling plant and the baseof the stack, which has a height of 45 m. (148 ft.) and an in-ternal diameter at the top of 2 m. (6.5 ft.). In t

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