RU2790438C1 - Bird protection device for connecting wires on poles of overhead power transmission lines - Google Patents

Abstract

FIELD: electric power industry.

SUBSTANCE: invention relates to the field of electric power industry. The bird protection device for connecting wires on the supports of overhead power lines consists of a piece of wire with insulation, the ends of which are made without insulation, on which bushings are permanently fixed. The insulation is additionally covered on top with a layer of cross-linked non-combustible polyethylene, while the junction of the sleeve and the wire is covered with elastic silicone rubber, which overlaps part of the sleeve and part of the insulation, and the sleeves are located at a distance from the wire insulation, which is filled with elastic silicone rubber.

EFFECT: increase the service life of wire connection devices.

2 cl, 2 dwg

Description

The invention relates to the field of electric power industry, and more specifically to bird protection devices designed to connect wires on the supports of overhead power lines.

From the prior art, various versions of devices for connecting wires on the supports of overhead power lines are known.

From the prior art, the source RU 2656856 C1, published on 06/07/2018, is known, which discloses a device designed to connect bare wires on the supports of overhead power lines with a voltage of 6-500 kV, which is a loop connected near the anchor clamps by means of connecting or branch clamps or directly connected with anchor clamps. The loop is made of at least one insulated wire, consisting of at least one element and clamps, which are or are not included in the device, which prevents the defeat of birds and other animals by electric current and excludes overlap due to lashing with support elements and other parts of the overhead transmission line, while the cross section, length and total thickness of the loop wire insulation are respectively selected from the following values: S=16-600 mm ² , L=0.6-25 m and B=1-100 mm.

This source of information was taken as the closest analogue to the claimed invention.

The disadvantage of the closest analogue, as well as all known prior art, is the lack of durability of the use of such devices due to poor wire insulation and rapid insulation failure, which leads to the need for frequent replacement of wire connection devices.

Thus, the objective of the claimed invention is to eliminate the shortcomings of the prior art.

The technical result to which the claimed invention is directed is to increase the service life of wire connection devices.

The technical result is fully achieved by the set of features of the invention declared in the independent claim.

The bird protection device for connecting wires on the supports of overhead power lines consists of a piece of wire with insulation, the ends of which are made without insulation, on which bushings are permanently fixed. The insulation is additionally top-coated with a layer of cross-linked non-combustible polyethylene, while the junction of the sleeve and the wire is covered with elastic silicone rubber, which overlaps part of the sleeve and part of the insulation, and the sleeves are located at a distance from the wire insulation, which is filled with elastic silicone rubber.

The end of the sleeve opposite the end where it connects to the wire has the same diameter as the wire without insulation.

Further, the claimed invention is explained in more detail by the drawings, in which:

In FIG. 1 shows the claimed device.

In FIG. 2 shows the end part of the claimed device.

The claimed bird protection device for connecting wires on overhead power transmission towers (hereinafter referred to as the Device) consists of a shielded high-temperature wire (1) with additional insulation (2) made of cross-linked, non-combustible polyethylene, and bushings (3) for pressing clamps. The joint between the wire (1) and the sleeve (3) (instead of heat shrink) is hermetically sealed with silicone elastic rubber (4), which, unlike the heat shrink tubes used in the prior art, prevents permanent moisture ingress, significantly increasing reliability, and prevents corrosion of the wire longer time.

The assembly of the declared Device is carried out as follows:

A sleeve is put on the uninsulated ends of the wire with an axial hole, where the uninsulated end of the wire is crimped. The devices or the insulated ends of the wire are pressed into the sleeves. In this case, the sleeve is put on the uninsulated part of the wire not close to the wire insulation, but at a short distance (see Fig. 2). Further, the junction of the sleeve and the wire is covered with elastic silicone rubber, while the gap between the sleeve and the wire insulation is filled with elastic silicone rubber, which is much more effective than the previously used heat shrink tubes.

The claimed Device is made in the form of a piece of insulated wire with bushings fixed at its ends, which allow you to mount the Device on the wires of an already installed overhead power line. The device is fixed with bushings in fasteners on the wires of the overhead power line. The ends of the bushings, opposite to the ends with which they are connected to the wire, have a diameter equal to the diameter of the wire without insulation. The bushings are an imitation of the end of the wire, which allows the use of any pressable clamp.

Thus, the shielded wire with additional insulation made of cross-linked, non-combustible polyethylene, as well as the use of silicone elastic rubber insulation at the joints of the wire and the bushing, ensures the durability of the Device and eliminates the need for frequent replacement of wire connection devices on overhead power transmission line supports.

Thus, the claimed invention is new, since the totality of its features is not known from the prior art, and, accordingly, meets the condition of patentability "novelty".

The claimed invention meets the patentability condition "industrial applicability", since it can be used in industry.

The claimed invention meets the "inventive step" patentability condition, since it does not explicitly follow for a specialist in the prior art.

Although the present invention has been disclosed with reference to preferred embodiments, this is not intended to be limiting. Specialists with general knowledge in the art of the present invention can modify and implement it without departing from the idea and scope of the invention, therefore, the scope of protection of the present invention should be governed by the scope given in the claims of the claimed invention.

Claims (2)

1. A bird-proof device for connecting wires on overhead power transmission line supports, consisting of a piece of wire with insulation, the ends of which are made without insulation, on which bushings are permanently fixed, characterized in that the insulation is additionally covered on top with a layer of cross-linked non-combustible polyethylene, while the junction sleeves and wires is covered with elastic silicone rubber, which overlaps part of the sleeve and part of the insulation, and the sleeves are located at a distance from the insulation of the wire, which is filled with elastic silicone rubber. 2. The device according to claim 1, characterized in that the end of the sleeve, opposite the end with which it is connected to the wire, has a diameter equal to the diameter of the wire without insulation.

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