A SUSPENSION DEVICE FOR LAYING CONDUCTORS AND/OR ELECTRIC CABLES FOR OVERHEAD POWER SUPPLY.

摘要

Suspension device for the stringing of electric conductors and/or cables for overhead power lines, of the type comprising a suspension frame, to be anchored to a crossarm of a tower of the line, and means for the support and sliding of the conductors and/or cables, said support and sliding means comprising, for each conductor or cable, a plurality of support rollers rotating about parallel pins, said rollers being aligned one after the other along a curved trajectory and defining an ideal support and sliding surface for the conductor or cable. According to the invention, the support rollers for each conductor are divided in two groups forming two semi-sectors; the two semi-sectors supporting each conductor are mounted on the suspension frame in specular symmetry in respect of the central vertical suspension axis of said frame, said two semi-sectors being mutually spaced; lifting and lowering means are moreover associated to said semi-sectors, to move the semi-sectors in a substantially vertical direction.