Railway Traction Line Towers
Towers used for single-phase AC railway traction lines are similar in construction to those towers used for 110 kV-three phase lines. Steel tube or concrete poles are also often used for these lines. However, railway traction current systems are two-pole AC systems, so traction lines are designed for two conductors (or multiples of two, usually four, eight, or twelve). As a rule, the towers of railway traction lines carry two electric circuits, so they have four conductors. These are usually arranged on one level, whereby each circuit occupies one half of the crossarm. For four traction circuits the arrangement of the conductors is in two-levels and for six electric circuits the arrangement of the conductors is in three levels.
Read more about this topic: Transmission Tower
Famous quotes containing the words railway, line and/or towers:
“Her personality had an architectonic quality; I think of her when I see some of the great London railway termini, especially St. Pancras, with its soot and turrets, and she overshadowed her own daughters, whom she did not understand—my mother, who liked things to be nice; my dotty aunt. But my mother had not the strength to put even some physical distance between them, let alone keep the old monster at emotional arm’s length.”
—Angela Carter (1940–1992)
“The individual woman is required ... a thousand times a day to choose either to accept her appointed role and thereby rescue her good disposition out of the wreckage of her self-respect, or else follow an independent line of behavior and rescue her self-respect out of the wreckage of her good disposition.”
—Jeannette Rankin (1880–1973)
“Britannia needs no bulwarks,
No towers along the steep;
Her march is o’er the mountain-waves,
Her home is on the deep.”
—Thomas Campbell (1774–1844)