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 122
ndlike an auger. Wherever required by the nature of the soil, a grouting orfoundation of loose stones is formed in the bottom of the hole,and, in marshy or springy ground, a base of concrete and cementis laid, with filling of the same material around the pole, whenraised. Oues. How are the poles… … •O ^ «•« o ^ •S.5 2 4->^ Cfj ^3 41 4) E ^•^ 5 3TOO 3 s ■* d-r u u o S OUTSIDE WIRING 811 Oues. How are the poles raised and placed in theholes? Ans. A piece of timber is inserted in the hole as a slide toprevent crumbling of the earth as the pole is slid into place.The end is raised by hand…
Electrical engineering
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