Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 120
ps should be pointed to shed water. 808 HAWKINS ELECTRICITY Spacing the Poles.—In general, the spacing of poles, liketheir dimensions, is regulated by the weight of the hnes theyare designed to csurry—the hea\ier the lines the greater thenumber of poles. The spacing of poles also depends on… … Pigs. 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 con-structed line is sawed to the right length and carefully shapedbefore it is finally inserted…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
