PL165884B1 - Overhead contact line dropper in particular for use in contact systems of electric railway networks - Google Patents

Abstract

Hanger for electric traction cables overhead line consisting of the upper and the lower flat bar clamped with clamps, characterized in that it is suitably shaped the upper flat bar (1) and the flat bar the lower one (2) creates a figure similar to an isosceles triangle whose vertex is the carrier rope (4), and the peaks the bases are left and right contact wires (5).

Description

The subject of the invention is a rigid hanger of electric traction overhead contact wires.

The solutions used so far for rigid hangers of the electric traction overhead line can suspend only one contact wire to the load cable, and their structure consisting of an upper and lower flat bar clamped with clamps limits the contact wire to the load-bearing rope at a distance of not less than 50 mm. Hangers of this solution are used to guide electro-traction traction networks under engineering structures and are one of the factors determining the clearance of these structures above the running surface of the rails. The disadvantage of the existing solutions is the necessity to use a fairly large distance of the contact wire from the carrier rope, which increases the scope of reconstruction of engineering structures located on electrified railway lines.

The essence of the invention consists in the fact that the rigid hanger of the contact wires allows the simultaneous suspension of two contact wires to one or a set of lifting ropes, while the appropriate shape of the upper and lower flat bars creates a cross-sectional figure similar to an isosceles triangle, the apex of which is a carrier rope, and the bases are left and right contact wires.

The advantage of this solution is to minimize the distance between the carrier rope and the contact wires of the electric traction network. Due to the appropriate shape, the distance between the contact wires and the carrying rope can be at least 10 mm.

The subject of the invention is illustrated in the embodiment in the drawing, in which Fig. 1 shows the hanger in a front view, mounted on the conductors of the electric traction network, and Fig. 2 - a top view.

The hanger consists of an appropriately shaped upper flat bar 1 resting on the carrier rope 4, the ends of which are part of the contact wire holders 5, and a suitably shaped lower flat bar 2 immobilizing the carrier rope 4, its ends being the second part of the trough holders 5. Both parts are tightened with appropriately shaped clamps 3.

The invention can be used for suspending the overhead contact wires of electric traction overhead lines under engineering structures.

165 884

CU

Publishing Department of the UP RP. Circulation of 90 copies. Price PLN 1.00

Claims (1)

Patent claim Hanger of the contact wires of an electric traction network consisting of an upper and lower flat bar clamped with clamps, characterized in that the appropriate shape of the upper flat bar (1) and the lower flat bar (2) creates a figure similar to an isosceles triangle, the apex of which is the carrier rope (4), and the tops of the base are the left and right contact wires (5).