RU2786575C1 - Anti-landing device to prevent birds from landing on the supports of high-voltage power lines - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: invention relates to the field of electric power engineering and can be used as an anti-landing device to protect overhead power lines. The anti-landing device consists of a cone-shaped bundle of high-strength galvanized wires with a zinc coating density of at least 245 g/m² or of high-strength polymer-coated wires. Drop-shaped tips are fixed at one end of the wire. A bundle of wires with drop-shaped tips is dissolved in the form of a circle. The other end of the bundle of wires is tightly compressed in a split sleeve. The sleeve is welded to one of the two corners of the base. The second corner of the base, in which there is a bolt for attaching the anti-landing device to the corner of the support beam, is welded to the corner of the base with elastic elements.

EFFECT: simplification of the design of the device, as well as simplification of the installation/disassembly of the device on the corner of the support beam.

1 cl, 1 dwg

Description

The invention relates to the field of electric power industry, and can be used as an anti-additive device for protecting overhead power lines, which makes it possible to prevent death, to protect birds from electric shock on the traverses of overhead power transmission lines, to exclude the possibility of landing and nesting of birds on the traverses of the supports, providing at the same time the conditions of normal operation and operation of overhead power lines.

A device for repelling birds is known (see the description of the invention to the patent RU 2660467 C1, H02G 1/02, A01M 29/00 published on 07/06/2018, Bull. 19). A device for scaring away birds from landing and nesting on the traverses of overhead power transmission line supports, made at least in the form of one module connected to each other, each of which consists of a monolithic one-piece rectangular base and three rods with a rounded smooth surface with drop-shaped end parts and made of dielectric material. The disadvantages of this device include the following, rather complex in its design, a module consisting of a monolithic one-piece base of a rectangular shape, in which one side of the base is made with a groove, and the other side of the base is made with a spike in order to connect the modules to each other according to the type "thorn-groove", it should be noted a rather complicated way of fixing the module on the traverse using a wire or a special tie with a lock.

A device is known for preventing birds from landing on the supports of overhead power lines (options) (see the description of the invention to the patent RU 2393603 C1, H02G 1/02, published 06/27/2010, Bull. 18). The device consists of a set of repellent elements made of polymeric materials or in the form of metal wires, assembled in a bundle and unfolded like a fan, the wires are pressed into the hole of a stepped rod, fixed with a threaded end to the traverse of the line support, the ends of the wires are bent at an angle relative to their longitudinal axes, during In bushings located perpendicular to the stepped rod, a flexible cable is attached along the traverse symmetrically to the vertical axis of the stepped rod.

In the second version of the device, bars with a diameter of 6-H4 mm are welded to the rod. A pipe with an inner diameter greater than the diameter of the bars is put on the bars. The disadvantages of this device include the complexity of the design, the difficulty of pressing a bundle of wires into a stepped rod, a flexible cable that is mounted in bushings located perpendicular to the stepped rod does not guarantee the repelling of birds due to cable deflection, the complexity of installation associated with fixing the threaded part of the stepped rod to the traverse. According to the second option, it should be noted that the absence of rotation supports in the device does not contribute to the rotation of the pipe around the welded rods when birds land on the pipe, since the influence of atmospheric precipitation during long-term operation of the device will affect.

A device for protecting buildings and structures from birds (options) is known (see the description of the utility model for patent RU 117070 U1, A01M 29/00 published on 06/20/2012, Bull. 17). In which the device for protecting buildings and structures from birds is presented in two versions.

The device for scaring away birds according to the first version of the "squirrel wheel" consists of a rotating tube on which the blades are located. Inside the tube is a rod, which is attached through the base to the support. The device according to the second version contains teeth made in the form of a beam, which are attached through the base to the support. This complex design of the device, which has low reliability, has significant drawbacks:

- according to the first variant, difficult rotation of the tube with blades around the rod connected to the base of the device, due to atmospheric precipitation during the long-term operation of this device;

- according to the second version, the device contains teeth, made in the form of a beam, which are attached through the base to the support, it should be noted the difficulty of attaching the beam with teeth to the base, as well as the sharp ends of the teeth, which can injure the bird.

A device is known for preventing birds from landing on the supports of overhead power lines (see the description of the utility model to the patent RU 121965 U1, H02G 1/02, published 10.11.2012, Bull. 31). In which the deterrent elements are made in the form of a segment of a lightning protection cable, one end of which is pressed into a sleeve, the inner threaded part of which corresponds to the thread of the mount, supporting insulator garlands, and the other end is untwisted in the form of a whisk, and the device is fixed on the traverse on the mount of the supporting garlands of insulators directly above the string of insulators.

The disadvantages of this device include the following, repellent elements made in the form of a piece of lightning protection cable with sharp wire ends, which are made, as a rule, with a high breaking force of the wires (1770-1860) N / mm ² , high hardness and elasticity of the wires, respectively, It should be noted that it is quite difficult, and practically impossible, to give a rectilinear shape to the untwisted end of the wires of a lightning protection cable, since after the cable is twisted, the wires have a helical profile along the length of the cable. Birds, trying to sit down or make a nest for themselves, on this device, made in the form of a piece of lightning protection cable with sharp ends of wires, are very likely to injure themselves on the sharp ends of elastic wires, and also damage their wings when spreading. The proposed design of the device is dangerous for birds during their takeoff or landing, the operation of such devices is under the control of ornithologists, who pay due attention to the protection of birds from possible injury to them and possible electric shock.

The objective of the present invention is to develop a simple in design, as well as during installation / dismantling, an effective anti-additive device for protecting overhead power lines, protecting birds from electric shock, when they are on the traverse, to exclude the possibility of landing and nesting of birds on the traverses of supports, providing at the same time the conditions for normal operation and operation of overhead power lines.

A positive technical result was achieved due to the combination of essential design features of the proposed anti-additive device for protecting overhead power lines, protecting birds from electric shock on the traverses of overhead power transmission line supports, containing supports fixed on the corner of the traverse, repelling elastic elements, made in the form of a cone-shaped bundle of elastic elements , characterized in that the elastic elements are made of high-strength galvanized wires, with a zinc coating density of at least 245 g / m ² , or of high-strength polymer-coated wires, at one end the bundle of elastic elements is fixed by compression along the outer surface of the split sleeve, the other end of the bundle of elastic elements with drop-shaped tips is fluffed in the form of a circle, a split sleeve is welded to one of the two corners of the base, the second corner of the base, for attaching the anti-additive device to the corner of the support traverse, contains a fixing bolt , nut and spring washer, welded to the corner of the base with elastic elements.

The essence of the invention is illustrated by the drawing, where in Fig. 1 shows a general view of the device. The device consists of a cone-shaped bundle of high-strength galvanized wires or high-strength wires with a polymer coating 2, at one end of the wires, teardrop-shaped tips 3 are fixed, the bundle of wires with teardrop-shaped tips is spread out in the form of a circle. The other end of the wire bundle is tightly crimped in the split sleeve 1, the sleeve is welded to the corner 4 of the base. Corner 5, welded to corner 4, fixes the device on the corner of support 9 by means of bolt 6, nut 8 and spring washer 7.

The technical result of the claimed invention is a simple design, as well as during installation / dismantling, an effective anti-additive device for protecting birds from electric shock, when they are on the traverse of overhead power lines, to exclude the possibility of landing and nesting of birds on the traverses of supports, simultaneously providing conditions for normal operation and operation of overhead power lines.

Claims (1)

An anti-additive device for preventing birds from landing on the supports of overhead power lines, containing supports fixed at the corner of the traverse, repelling elastic elements made in the form of a cone-shaped bundle of elastic elements, characterized in that the elastic elements are made of high-strength galvanized wires with a zinc coating density of at least 245 g / m ² or from high-strength polymer-coated wires, at one end the bundle of elastic elements is fixed by compression along the outer surface of the split sleeve, the other end of the bundle of elastic elements with drop-shaped tips is fluffed in the form of a circle, the split sleeve is welded to one of the two corners of the base, the second the corner of the base, in which the bolt for fastening the anti-additive device to the corner of the traverse of the support, is welded to the corner of the base with elastic elements.

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