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Page 808 | Volume 3 | Chapter 39 | Outside Wiring
Spacing the Poles.—In general, the spacing of poles, like their dimensions, is regulated by the weight of the lines they are designed to carry—the heavier the lines the greater the number of poles. The spacing of poles also depends on their liability to injury from storms and wind in any given locality, and the nature of the service. Poles for a telephone line may be spaced twenty to fifty to the mile—that is, from about 260 to 100 feet apart.
Figs. 938 to 941.—Pole line construction tools. Fig. 938, pike pole; fig. 939, raising fork; fig. 940, mule pole support; fig. 941, jenny pole support.
Erecting the Poles.—Since each pole on a properly constructed line is sawed to the right length and carefully shaped before it is finally inserted in the ground, it is necessary that
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