H - Electricity – 02 – G
Patent
H - Electricity
02
G
337/124
H02G 7/14 (2006.01)
Patent
CA 1256958
ABSTRACT OF THE DISCLOSURE An aerodynamic damper for reducing wind-induced motion, espe- cially galloping, of electrical transmission and distribution lines comprises a structure that in cross-section has a vane that is secured to the conductor by two arms. Each of the arms is formed on the inside partly by an arc of a circle substantially equal in radius to the radius of the circle enclosing the conductor. This arc extends for about 45 degrees on each of the arms. The remaining part, for approximately 90 degrees, of each of the arms is formed by an arc of a circle of a radius smaller than that of the conductor and centered below and off the center- line of the conductor. Each of the arms is terminated by a lip which is thicker than the adjacent portion of the arm. In a preferred embodiment the damper is formed by extending the cross section linearly along the conductor for a distance of the order of four feet. In an alternate embodiment, the damper is formed by winding the cross-section in a helix about the conductor. The damper is preferably made of an insulating plastic such as carbon-filled polyethylene
492844
Fetherstonhaugh & Co.
Zaltsberg Leib
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