Wood-pole 230-kv transmission lines

STEEL has been comparatively cheap in the United States and, until recently, available in quantity. Consequently the use of steel structures for supporting the higher-voltage transmission lines has been favored by transmission engineers. However, since conservation of critical materials has become necessary, it is essential that designs incorporating wood construction be considered for such applications. A contribution to efforts in this direction is provided by a review of the design used for single-circuit wood-pole 230-kv transmission lines recently constructed to supply power to an important industrial area.