Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 43
two outside conductors in a three-wire .system where the{)otential hetween the outsiih- comluctors is not over ;UKI volts. Thecleat must hol«l the wire at least one-half iiu-h fnim the surface to whichthe cliat is fiistenetl; and in damp places the win* nuist Ik* luld atleast one inch from the… … Pig. 22. Iron Rack and Insulators for Large Conductors. Courtesy of General Electric Co., Schenectady, N. Y. cleat and single-wire cleat, respectively. For large feeder or main conductorsfrom No. 4/0 B. & S. Gauge upward, amore substantial form of porcelain insu-lator should be used, such as…
Architecture · Building
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