Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 103
he actualconditions. T9 70 ELECTRIC WIRING Poles. Poles should be of selected quality of chestnut or cedar,and should be sound and free from cracks, knots, or other flaws.Experience has proven that chestnut and cedar poles are the mostdurable and best fitted for linework. If neither chestnut nor… … Pig. 63. Cut-Ovit Panel with Pnsb-Brttton Switches. Cover Removed. and some of the other woods are not only less strong initially, but areapt to rot much quicker at the wind and water line—that is, justabove and below the surface of the ground. The proper height of pole to be used depends upon…
Architecture · Building
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