SU1753535A1 - Device for protection of insulation of aerial power lines from fouling by birds - Google Patents

Abstract

SUMMARY OF THE INVENTION: The device is bundles of elastic rods 1, which are located on two urb x 2 and interconnected by elastic connecting rods 3. The higher the level, the longer the elastic with rods 1 is smaller and smaller than the diameter of the elastic connecting rods 3. Elastic The rods 1 do not allow to approach the place of attachment of the wire of the insulators by a distance determined by their length to birds flying up to the support or sitting on the traverse 4 line supports. The device makes it possible to increase the reliability of the operation of overhead transmission lines by increasing the effectiveness of protecting the insulation against soils and floors caused by birds 3 sludge. SO S "GAD s ely s 01

Description

The invention relates to power engineering and can be used to improve the reliability of overhead power lines.

It is known a device made of individual rigid limiting elements mounted on a rod rigidly mounted on a traverse over a wire of insulators 1. tgf

However, the presence of rigid, limiting elements does not exclude the possibility of bird landing, but only create inconvenience during landing. Moreover, the birds throw various objects on the elements of this device (cotton stalks, branches of bushes, wires, etc.) and build nests on them.

Closest to the present invention is a device for protecting the isolation of overhead power lines from pollution by birds, which contains elastic limiting elements rigidly fixed by fastening the supports above the arms of insulators 2 on the crossheads.

The main disadvantage of this device is the ability to bend it over with the body of a bird and to install or sketch various objects on them (cotton stalks, branches of bushes, wire, etc.).

The aim of the invention is to improve the reliability of overhead lines by increasing the effectiveness of protecting the insulators of the VL from soils and ceilings caused by birds.

This goal is achieved by the fact that the device for protection of the VL isolation from pollution by birds contains bundles of elastic rods rigidly mounted on the cross-bars of power transmission lines above the wires of insulators. The bundles of elastic rods, which exclude the possibility of the bird approaching the site of insulators on the traverses of overhead transmission towers, are located at least at two levels in height, and between these bundles there are elastic connecting rods.

The presence of beams of elastic rods located at least on two levels in height. In this case, at each subsequent level from the support beam, the bundles of elastic rods are made with a decrease in length, and the elastic connecting rods with a decrease in diameter and length, allows the device to gradually reset various objects thrown by birds from the danger zone and does not allow the bird to build a nest.

The presence of bundles of elastic rods located on at least two levels of iib Bttcete interconnected

elastic connecting rods, prevents birds from bending individual elastic rods, landing on the device itself due to deflection under the weight of the bird and in the entire protected area, thereby preventing contamination and overlapping of the insulation.

Figure 1 shows the proposed device; 2 and 3 are installation diagrams.

of this device on supports of various types. ". ,

The device for protecting the insulation VL from bird contamination contains bundles of elastic rods 1 arranged at least

a measure on two levels x 2 and interconnected by elastic connecting rods 3. -

To secure the device on the yoke 4 of the support 5 above the bushings of insulators 6

it is provided with a mount 7.

The operation of the device is as follows.

The device for protecting the insulator overhead lines from pollution is mounted on traverse 4 above the suspension point of the insulator bush 6 on the

traverse 4 above the suspension point of the needle ryda

insulators 6 on traverse 4 pylons 5 V. L. Bundles

Elastic rods 1 do not allow the mounting point of the bushing of insulators b to be reached by a distance determined by the length of the elastic rods to birds flying up to the support 5 or sitting down on the traverse of 4 VL supports. ....

Installing multiple devices along

the cross bar 4, as well as the selection of the length of the elastic rods 1 in the bundles, prevents isolation of the insulation along the stream of manure when the bird is away from the suspension point of the arm of the insulator 6 on the cross bar 4

support 5 VL.

The various objects thrown by the birds on the device) are dropped when the elastic rods 1 are bent in bundles under the influence of the weight of these objects.

As an alternative to the manufacture of this device, the steel cable TK-11, which is used for lightning protection of overhead lines, can be used. The number of beams of elastic rods 1, located at least on two levels 2, is determined by the number of layers of steel wire cores, which are; unbend and fold to the sides. The distances between the bundles of elastic rods are selected by installing the bandages 8 before unwinding and bending the steel cores of the rope. To ensure the safety of the birds, the ends of the steel wires of the rope must not be sharpened.

Devices made using steel ropes TK-11 have

practically unlimited service life and not dangerous for birds. At the same time, labor costs when installing on cross-braces 4 pillars 5 of operating overhead lines of the proposed device are minimal and scarce materials are not required for their manufacture. They are convenient for transportation and storage.

The fastening assembly 7 to traverse 4 of the support 5 VL is simple, versatile and reliable. In the units operating in any enterprise it is possible to organize the manufacture of the device.

The proposed device for protecting the isolation of overhead lines from pollution by birds can be made from other elastic materials, including insulating materials in the form of a composite structure similar to a composite artificial Christmas tree, which facilitates the organization of industrial production of the device.

The optimal sizes of the elements of the proposed device may be different for different regions of the country and largely depend on the nest building objects used by birds, as well as bird species, mostly inhabiting these areas. The design is universal and practically protects the isolation of the OHL from large birds with long legs (storks) and meek legs (kites, eagles, etc.).

. Thus, the use of the proposed device will improve the reliability of overhead power lines by increasing the effectiveness of protection of the insulation from soils and floors caused by birds.

Claims (1)

Invention Formula A device for protecting the isolation of overhead transmission lines from pollution by birds, containing bundles of elastic rods rigidly mounted on traverses of the supports of the lines above the wires of insulators, characterized in that, in order to increase the reliability and efficiency of protection of isolation of overhead transmission lines from contamination and overlappings caused by birds, by eliminating the possibility of birds coming to the place of attachment of insulators on the traverse of the line supports, it is provided with elastic connecting rods, one end of the first of which assigned to attachment to the traverse, the second end is attached to the bundle of elastic rods, and the remaining elastic connecting rods are fixed between the bundles of elastic rods located at least at two levels along the height of the support, while at each subsequent level from the traverse of the support the bundles of elastic rods are made with a decrease in length, and elastic connecting rods - with a decrease in diameter. S / S /// // 2 AT Fi & W