RU2570561C1 - Trolley-type bird guard device for terminal clamps of power transmission line - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: trolley-type bird guard device for terminal clamps of power transmission line is made as a cover. The cover consists of two U-shaped parts. The cover parts are mated with depressions to each other thus forming a cavity for the terminal clamp. The parts are mated along one lateral sides of the cover using feathering hinges. At least at the other lateral side the cover parts are mated by snap-connecting elements. At two opposite lateral sides there are openings made in the cover. One opening serves as access to the terminal clamp of the strained line section. The second opening serves for passage of the insulator element coupled to the terminal clamp. In the lateral side neighbouring the lateral side with opening there is the third opening. The third opening serves for passage of wire coming from the terminal clamp. Each opening is shaped by opposed dents in the mated U-shaped parts.

EFFECT: widening range of facilities protecting birds from electric shock, simple design, assembly, disassembly, reliable fixation at strained elements of different structure.

6 cl, 6 dwg

Description

The invention relates to the field of electrical equipment, and in particular to contact-type bird protection devices for tension clamps of power lines, which are installed over tension clamps used to secure wires, mainly on suspended insulators of power line supports, which are in contact with metal parts with bare wires As a result, the tension clamps are energized, due to which birds sitting on them can be shocked. The devices can not only reduce the likelihood of death of birds, but also reduce operating costs caused by contamination of birds tension clamps.

By means of a contact-type bird protection device for tension clamps of power lines, wedge gang clamp tension clamps, jammed tension clamps, bolt tension clamps, and also tension clamps of other designs can be isolated.

A device for protecting contact-type birds for power lines is intended for the electrical insulation of tension clamps of wires at the sites of their attachment to suspension insulators of supports, which is made in the form of a U-shaped casing made of rigid dielectric material, including a wide straight section, rounded from above, in the cavity of which a tension clamp is located, extending from it towards the stretched wire, a cone-shaped section ending in a narrowed, rectilinear section in the cavity of the cat There is a stretched wire. On the other side of the wide straight section, the casing has a cone-shaped extension, which is located hollow on the edge of the suspension insulator. Two pairs of holes are made in the casing along the edges of the wide straight section located at the bottom, opposite each other, through which two rod fasteners are passed, which secure the casing (EP 2366286 A1, IPC A01M 29/32, 2011).

In cases where the casing is mounted on a tension clamp that will not be tightly covered by it, or in the case where the rod fasteners do not abut against the tension clamp elements, under the influence of wind or other dynamic loading, the casing can slide from the clamp in the direction of the tensioned wire and / or turn with the open part up, which becomes available for bird landing, contact of birds with energized elements. This can lead to cases of electric shock to the birds, to violations, as a result, in the functioning of the power line, which indicates the insufficient reliability of the known device.

The technical result of the present invention is to expand the arsenal of means for protecting birds from electric shock by a contact type device for tension clamps of power lines, which is securely fixed to tension clamps of various designs and its location does not undergo significant changes during operation under the influence of wind or other dynamic loads , guaranteed to protect birds from electric shock, it is easy to manufacture, assemble and disassemble.

This technical result provides a contact-type bird protection device for tension clamps of power lines, which comprises a casing made of two trough-shaped parts made of a dielectric polymer material or of a dielectric composite material based on a polymer and mated with recesses facing each other with the formation of a cavity for the location of the tension clamping.

Trough-shaped parts are mated on one of the sides of the casing using axial joints, and at least on the other side of the casing are connected by latched connection elements made on the trough-like parts.

In the casing opposite each other from two opposite lateral sides adjacent to the side where the axial hinges are located, holes are made, one for passing the tensioned portion of the wire connected to the tension clamp, and the second for passing the insulator element connected to the tension clamp.

On the side of the casing, opposite the side where the axial joints are located, adjacent to the side with a second hole for passing the insulator element connected to the tension clamp, a third hole is made in the casing for passing the wire extending from the tension clamp.

Each of the three indicated holes is formed by two recesses located one opposite the other in mating portions forming the corresponding side of the casing of trough-like parts.

In a preferred embodiment of the invention, the axial hinges of the trough-like parts of the casing are made in the form of integrally formed on each trough-like part with them with the possibility of mating with the formation of an axial hinge of two sets of axes and split sleeves, and in the latter longitudinal sections are made with the possibility of pushing with an inward force axles to provide articulation of the trough-like parts of the casing.

In the best embodiment of the invention, in the bottom parts of the trough-like parts of the casing, the openings for passing the coupling clamps are made in pairs opposite, while on the side of the casing, opposite the side where the axial hinges are located, protrusions in the form of brackets are made, also intended for passing the coupling clamps. The holes for the passage of the coupling clamps are usually located adjacent to the side of the casing with axial joints. Each protrusion in the form of a bracket is preferably made of two paired U-shaped parts located on the trough-like parts of the casing.

The possibility of carrying out the invention is confirmed by a specific example of a contact type bird protection device for tension clamps of power lines, which is illustrated by graphic materials:

- in FIG. 1 shows a three-dimensional view of a contact type bird protection device for tension clamps of power lines, FIG. 2 is a front view (plan view), in FIG. 3 is a side view from the side opposite to the side where the axial joints are located;

- in FIG. 4 shows a trough-like part, a three-dimensional view of the internal cavity and elements of axial joints, in FIG. 5 - this part, a view of the internal cavity, in FIG. 6 is a side view from the side with the second and third holes.

The contact-type bird protection device for tension clamps of power lines comprises a housing 1 made of two trough-shaped parts 2 and 3, which are made of a dielectric polymer material or of a dielectric composite material based on a polymer. Preferably, non-combustible weather-resistant polybutylene terephthalate-based polymer compositions are used for the manufacture of trough-like parts 2 and 3.

The trough-like parts 2, 3 are connected by recesses 4 (Fig. 4) towards each other with the formation of a cavity 5 (Fig. 1, 3) for the location of the tension clamp (not shown in the drawings). On the side 6 (Fig. 1, 2), the trough-like parts 2, 3 are conjugated using axial joints 7, and on the other side 8 of the casing they are connected by connection elements made in the form of latches 9, 10 (Fig. 1).

In the casing 1 opposite from each other from two opposite lateral sides 11, 12 adjacent to side 6, where the axial joints 7 are located, holes are made, one (first) 13 (Fig. 4) for passing the stretched wire section connected to the tension clamp (in the drawings not shown), and the second 14 (Figs. 1, 4) for passing an insulator element (not shown in the drawings) connected to a tension clamp,

On the side 8 of the casing 1 adjacent to the side 12 with the second hole 14 in the casing 1, a third hole 15 is made for passing the wire extending from the tension clamp (not shown in the drawings).

Each of the three indicated holes 13, 14, 15 is formed by two recesses 16 located one opposite the other in mating portions forming the corresponding lateral side 8, 11, 12 of the casing 1 of the trough-like parts 2, 3.

Axial hinges 7 (Fig. 4) are made in the form made on each trough-like part 2, 3 in one piece with them with the possibility of pairing with the formation of an axial hinge connection of two sets of axles 17 (Fig. 4) and split sleeves 18. In split sleeves 18 longitudinal sections 19 are made with the possibility of pushing with an inward force of the axes 17 to provide articulation of the trough-like parts 2, 3 of the casing 1. Other possible execution of axial hinges 7, including those not belonging to the category of quick-assembled ones.

In the bottom parts 20 (Fig. 1, 2) of the trough-like parts 2, 3, the holes 21 for passing the clamps (not shown) are made in pairs opposite. The holes 21 are adjacent to the side 6 of the casing 1. On the side 8 of the casing 1 there are protrusions 22 in the form of brackets, also intended for the passage of the coupling clamps. Each protrusion 22 of two paired U-shaped parts 23 (Fig. 4) located on the trough-like parts 2, 3 of the casing 1.

The clamps are made of polyethylene. Any flexible material can be used to make the clamps, but it is preferable to use clamps made of thermoplastic polymeric materials, the group of which includes polyethylene.

Each clamp is made in the form of an elongated part, on one end of which there is a latch with a hole, and on the side of the second end there is a section with fixing elements. Each clamp 10 is actually made in the form of a classic coupling clamp. In detail, the construction of coupling clamps that can be used is presented in the description of the invention RU 2523431 C1, IPC H02G 7/00, 07.20.2014.

When mounting a contact-type bird protection device made in accordance with the invention for tensioning clamps of power lines, a casing 1 is first assembled from two trough-shaped parts 2 and 3, for which sets of axles 17 and split sleeves 18 of axial joints 7. are mated. 21 tightened clamps. The casing 1 is mounted on the tension clamp and its trough-like parts 2 and 3 are fastened by connecting elements in the form of latches 9, 10. Straight sections of the clamps are passed through the tabs 22 in the form of brackets and are pulled together, so that the tension clamp is securely fixed inside the casing 1, and this is achieved for different types and sizes of tension clamps. In addition, the tie clamps solve the problem of back-up connection of the trough-like parts 2 and 3 in case the connection elements in the form of latches 9, 10 break. The use of coupling clamps is one of the aspects of the invention, which is aimed at achieving high reliability of the device made in accordance with the invention.

All parts of the invention made in accordance with patent claims are manufactured using known technologies, taking into account the materials used, which may be different, and not just the ones mentioned above. The example embodiment of the invention is not exhaustive. Other embodiments of the contact-type bird protection device according to the invention for tension clamps of power lines corresponding to the scope of patent claims are possible.

Claims (6)

1. A contact type bird protection device for tension clamps of power lines, comprising
a casing made of two trough-shaped parts made of a dielectric polymer material or of a dielectric composite material based on a polymer and conjugated with recesses towards each other with the formation of a cavity for the location of the tension clamp,
trough-shaped parts are mated on one of the sides of the casing using axial hinges, and at least on the other side of the casing are connected by snap elements made on the trough-like parts,
in the casing opposite each other from two opposite lateral sides adjacent to the side where the axial hinges are located, holes are made, one for passing the tensioned portion of the wire connected to the tension clamp, and the second for passing the insulator element connected to the tension clamp,
from the side of the casing, the opposite side where the axial joints are located, adjacent to the side with a second hole for passing the insulator element connected to the tension clamp, a third hole is made in the casing for passing the wire extending from the tension clamp,
wherein each of the three indicated holes is formed by two recesses located one opposite the other in mating portions forming the corresponding side of the casing of trough-like parts. 2. The device according to p. 1, characterized in that the axial hinges of the trough-like parts of the casing are made in the form made on each trough-shaped part in one piece with them with the possibility of pairing with the formation of an axial hinge of two sets of axes and split sleeves, and in the latter longitudinal cuts with the possibility of pushing with force into the axes to provide articulation of the trough-like parts of the casing. 3. The device according to any one of paragraphs. 1 or 2, characterized in that in the bottom parts of the trough-like parts of the casing, openings for passing the coupling clamps are made in pairs opposite, while on the side of the casing, opposite the side where the axial hinges are located, protrusions are made in the form of brackets, also intended for passing the coupling clamps . 4. The device according to p. 3, characterized in that the holes for the passage of the coupling clamps are adjacent to the side of the casing with axial joints. 5. The device according to p. 3, characterized in that each protrusion in the form of a bracket is made of two paired U-shaped parts located on the trough-like parts of the casing. 6. The device according to p. 4, characterized in that each protrusion in the form of a bracket is made of two paired U-shaped parts located on the trough-like parts of the casing.

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