An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 476
le with pin insula-tors. For higher voltages, pin insu-lators become very large so that thesuspension type of insulator has to beused and these are suspended fromsteel towers, as shown in figure 299.To protect the line against lightning,it is usual to run a steel wire alongparallel to the power… … Fig. 299. — Steel tower withsuspension insulator. 424 ELECTRICITY AND MAGNETISM
Electricity · Magnetism
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