RU204479U1 - DEVICE DESIGNED TO PROTECT BIRDS AGAINST ELECTRIC SHOCK ON AIR POWER LINES - Google Patents

Abstract

The utility model relates to the field of electric power, in particular to devices for protecting birds from electric shock on overhead power lines. The device consists of anti-attachment elements in the form of rods made of weather-resistant plastic, which converge at one end on a latch, which latches onto the conductors (phase wires) in the area of the overhead power transmission line supports, while the second ends of the rods are streamlined, and if along the outer ends of the rods draw a line, then a geometric figure is formed, forming an effective protection zone for birds from electric shock inside this symbolic figure. The device prevents birds from landing in the area of supports, insulated suspension and phase wires in the section between non-insulated shunts of electric arc protection devices, which makes it possible to eliminate line disconnections and prevent mass death of birds, and ultimately significantly increase the operational reliability of overhead power transmission lines. 3 ill.

Description

The utility model relates to the field of electric power engineering, in particular, to devices (anti-additive type) for protecting birds from electric shock on overhead power lines.

Since the end of the twentieth century in Russia, a large number of 6-10 kV overhead power lines with self-supporting insulated wires have been equipped with arc protection devices. The presence of bare shunts in the design of these devices and the small interphase distances on lines with protected wires create the danger of interphase faults caused by exposure to birds. The current situation contributes to a decrease in the reliability of 6-10 kV overhead power transmission lines with self-supporting insulated wires and the mass death of birds on such lines.

The inventive device is intended to exclude an interphase short circuit when birds touch the non-insulated shunts of protection devices against electric arcs in adjacent phases and to protect the birds themselves from electric shock on overhead power lines. The device is approved by the Russian Bird Conservation Union.

A device for protecting birds from electric shock on an overhead power line is known, containing at least two cup-shaped elements intended for installation on a pin insulator, and casing-channels intended for installation on wires of power lines [1].

This well-known technical solution, as shown by the practice of its application, does not allow to provide full protection of birds from electric shock, since there are sections of an insulating suspension in it that are accessible for birds to touch them, for example, non-insulated shunts of electric arc protection devices in adjacent phases overhead power line.

It is also known a device for preventing birds from landing on supports of overhead power lines, containing repelling elements made in the form of a bundle of elastic rods, characterized in that the repelling elements are made in the form of a section of a lightning protection cable, one end of which is pressed into a bushing, the internal threaded part of which corresponds to the thread the attachment point for the supporting insulator strings, and the other end is unbraided in the form of a rim, and the device is fixed on the traverse on the attachment point for the supporting insulator strings directly above the insulator string [2].

Birds, trying to sit on this device, made in the form of a piece of lightning protection cable and arrange a nest for themselves, with a high degree of probability can injure themselves on the sharp ends of the elastic wires of the ground wire and / or severely damage the wings when spreading. Attempts to sit on devices of such a design will always be made by birds and, therefore, they are very dangerous for them, and the operation of such devices is prohibited by ornithologists.

The applicant set himself a practical task - to create an effective, simple in design and affordable device designed to protect birds from electric shock on overhead power lines, while the main and main advantage of the proposed device over known technical solutions for a similar purpose is that it makes it possible to eliminate phase-to-phase faults while birds touch the uninsulated shunts of the electric arc protection devices in adjacent phases, thereby protecting the birds themselves from electric shock and preventing damage to overhead power lines. This positive technical result was achieved due to a new set of essential design features of the proposed device designed to protect birds from electric shock on overhead power lines, given in the following utility model formula: "a device designed to protect birds from electric shock on overhead lines power transmission, installed on a conductor with a latch, which is a set of anti-attachment elements and is used both as an independent device and as part of a group of devices. "

The essence of the invention is illustrated by drawings, where FIG. 1 shows in general form a device designed to protect birds from electric shock on overhead power lines, made in accordance with this utility model, a variant of using this technical solution as an independent device; in fig. 2 is the same as in FIG. 1, side view; in fig. 3 is the same as in FIG. 1, a variant of using this technical solution as part of a group of devices.

The claimed device is intended to protect birds from electric shock on overhead power lines. It is installed on the conductors (phase wires) 1, 2, 3 of the overhead power line using a latch 4 and is a set of anti-attachment elements 5.

The device can be used as a separate independent device (Fig. 1 and Fig. 2), and as part of a group of devices (Fig. 3).

Anti-attachment elements 5 are rods of various lengths made of weather-resistant plastic, UV-resistant (service life 40 years) and having an operating temperature range from -60 ° C to + 50 ° C. The rods with one end converge (are fixed) on the latch 4, which latches onto the conductors (phase wires) 1, 2, 3 in the area of the overhead power line supports, for example, to protect one phase, the device is supplied in sets of 12 pieces. The second free ends 6 of the rods 5 are made in a streamlined spherical shape, like the surface of each rod along its entire length.

In plan, if from the point of fixing the latch 5 on the conductors 1, 2, 3 a line is drawn along the ends 6 of the rods 5, then a circle 7 of regular shape with a radius equal to the length of each described rod 5 is formed (see Fig. 1). The area within this symbolic circle 7 is an effective protection area for birds from electric shock. Taking into account the recommendations of ornithologists in terms of the characteristics of various species of birds, the choice of nesting sites, feeding and incubation of chicks, the number of rods 5 in one device, the length, diameter and location around the circumference 7 are programmed in order to ensure the complete safety of birds when they contact or even strive to jack on this unit.

FIG. 3 shows in detail how a device operates as part of a group of the same devices. Three phase wires (conductors) 1, 2, 3 of the overhead power transmission line are fixed on pin insulators 8, 9, 10 on the traverse 11 of the support; on each phase conductor, devices 12, 13, 14 are installed to protect the line from the possible action of an electric arc with bare (not insulated) shunts 15, 16, 17; on each phase wire (conductor) 1, 2, 3 from one device 12, 13, 14 for protecting the line from the action of an electric arc and an uninsulated shunt 15, 16, 17 to another device 12, 13, 14 for protecting the line against the action of an electric arc and of the non-insulated shunt 15, 16, 17, the inventive devices shown in FIG. 1 2, in such a way as to cover the entire dangerous area for birds, namely, the area of the support, the insulated suspension (the place of installation of pin insulators) and the phase wires (conductors) for the entire length between the non-insulated shunts 15, 16, 17 of the device 12, 13, 14 protection of the line from the action of an electric arc.

The proposed device, designed to protect birds from damage on overhead power lines with protected electric wires, prevents birds from landing in the area of supports, insulated suspension and phase wires (conductors) in the section between non-insulated shunts of electric arc protection devices, which makes it possible to exclude disconnections lines and prevent the mass death of birds, ultimately significantly increase the operational reliability of overhead power transmission lines with self-supporting insulated wires 6-10 kV.

Information sources:

[1] Patent for utility model No. 133965 "Device for protecting birds from electric shock on overhead power lines (Options)", Н01В 17/50, filed on 11.04.2013, published on 27.10.2013. eleven.

[2] Patent for utility model No. 121965 "Device for preventing birds from landing on poles of overhead power lines", H02G 1/02, filed on 23.05.2012, published on 10.11.2012.

[3] Patent for utility model No. 103681 "Bird protection device for anchor-angle supports of power transmission lines with pin insulators", H02G 1/00, filed on 25.10.2010, published on 20.04.2011.

[4] Patent for utility model No. 103682 "Bird protection device for intermediate supports of power transmission lines with pin insulators with double wire fastening", H02G 1/00, filed on 25.10.2010, published on 20.04.2011.

[5] Utility model patent No. 123240 "Protection device on intermediate, end and branch supports of power lines with pin insulators (Options)", H02G 1/02, filed on 13.07.2012, published on 20.12.2012.

[6] Patent for utility model No. 156367 "Anti-attachment device for preventing birds from landing on power transmission towers", H02G 7/00, filed 03/31/2015, published 11/10/2015.

[7] Utility model patent No. 158146 "Contact type bird protection device", H02G 7/00, filed on 12/30/2014, published on 12/20/2015.

[8] Patent for utility model No. 103680 "Bird protection device for end supports of power transmission lines with pin insulators", H02G 1/00, filed on 25.10.2010, published on 20.04.20.

[nine]. Description of the invention to the inventor's certificate No. 974482 "Device for protecting birds from electric shock on power lines", H02G 7/00, declared 05/11/1981, published 11/15/1982.

[10] Description of the invention to the inventor's certificate No. 1753535 "Device for protecting the insulation of overhead power lines from pollution by birds", H02G 7/00, declared 06/27/1989, published 08/07/1992.

[11] Description of the invention to the patent No. 2393603 "Device for preventing birds from landing on the poles of overhead power lines (Options)", H02G 1/02, declared 06/17/2009, published 06/27/2010.

[12] China Utility Model Patent No. CN 201466617 U "Safety protective cap for preventing birds from nesting at the top of a railway electrification steel upright column", class H02G 7/00, published in 21014.

Claims (1)

A device designed to protect birds from electric shock on overhead power lines, consisting of anti-attachment elements in the form of rods made of weather-resistant plastic, which converge at one end on a latch that snaps onto the conductors (phase wires) in the area of the overhead power line supports, while the second ends of the rods are streamlined, and if a line is drawn along the outer ends of the rods, a geometric figure is formed, forming an effective protection zone for birds from electric shock inside this symbolic figure.

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