Overhead Electric Power Transmission; Principles And Calculations
Overhead Electric Power Transmission; Principles And Calculations
Still, Alfred, B. 1869
The book Overhead Electric Power Transmission; Principles And Calculations was written by author Still, Alfred, B. 1869 Here you can read free online of Overhead Electric Power Transmission; Principles And Calculations book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Overhead Electric Power Transmission; Principles And Calculations a good or bad book?
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70. — Example of tie. points of support are of rare occurrence; but where mechanical forms of cable clamps are used, as with the suspension type of insulator, and in many of the larger pin type insulators, the method of clamping the conductor to avoid mechanical injury or weakening due to vibration or to swaying of the wires in a wind, should receive careful attention. Digitized by Google CHAPTER VIII Transmission Line Supports The supporting poles or structures for overhead electric power tran...smission lines are of various kinds. Where the ordinary wood telegraph pole or a larger single pole of similar type is not suitable, double poles of the "A" or "H" type, or even braced wooden towers of considerable height and strength, may some- times be used with advantage. Under certain conditions it may be economical to use steel poles of the tubular type, or light masts of latticed steel, even for comparatively short spans; and poles of reinforced concrete have much to recommend them. But for long spans, and the wide spacing of wires necessary with-the higher pressures, steel towers, either of the rigid or flexible type, will generally be required.
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