BG112132A - Device for protection of birds against electric shock caused by the contact network of the electrified railway transport and high voltage power transmission lines - Google Patents

Abstract

The invention relates to a device applicable in the contact network of electrified rail transport and in electricity - in high-voltage lines ensuring protection of birds against electric shock and protection of the lines from emergency shutdown. The device is shown in Fig. 1 and comprises of a connecting element (1) of an electrically insulating elastic material, for example silicone rubber, in which an elastic joint (2) is pressed and one end of thin bars of electro-insulating material (3), whose number can be from 5 to 10 , and the diameter- from 1.5 to 4.00 mm. The device operates in the following way. One or more devices are attached to the insolator, which can be both horizontally and vertically mounted on the railway. When the bird lands on one of the thin bars pulled in the elastic connector, it immediately bends and frightens the bird, which instantly flies away. 2 claims, 2 figures

Description

Device for protection of birds from electric shock at the contact network of electrified railway transport and high voltage transmission lines

The device relates to electricity and electrified rail transport, and in particular to the protection of birds from electric shock when located at certain points in the contact network of electrified rail transport and high-voltage transmission lines, and at the same time to the protection of birds. these emergency shutdown lines.

Currently, in the practice of operation of transmission lines and catenary of electrified railway transport, the most common devices and devices restricting the access of birds to the elements for attaching wires to insulators through all kinds of protective casings, fabric mesh, mobile structures vibrating at them to birds and frightening them in this way, sharp spikes spinning in the wind and making a noise that birds are afraid of.

A device for protecting birds from electric shock (1) is known, which consists of a protective cover made of electrical insulating material, which is mounted at the place of attachment of the wire to the insulator. The protective casing is made with a cellular structure with hollow conical spikes of certain dimensions.

The disadvantage of this device is its difficult attachment to the insulator, and also it cannot be used in the catenary of electrified rail transport, where pipe installation is widely used and the device cannot be attached to the insulator at all. It is not suitable for lines over 20 kV.

Closest to the present invention is (2). Device for preventing birds from landing on the supports of overhead power lines, comprising elements frightening the birds in the form of a bundle of elastic rods, in this case of elastic metal wires fixed at one end and curved in the form of a broom at the other.

This device has the significant disadvantage that the sharp ends of the wires can seriously injure the birds when touched. In addition, it is also not applicable in important places in the catenary of electrified rail transport, where in some cases the insulator is mounted horizontally.

It is an object of the invention to provide a device with a purpose analogous to the devices described above, but devoid of the above-mentioned disadvantages, with extended functional possibilities and significantly reduced material costs during its production. This problem is solved by creating a device that consists of a connecting element of electrically insulating elastic material resistant to ultraviolet radiation, in which are pressed elastic connector resistant to ultraviolet radiation and several thin rods of insulating material pressed at one end.

This device works as follows: Crimped at one end of the insulating rod in the elastic connecting element forms an elastic arm (lever). When the bird lands on him, he bends over and the frightened bird takes off. The device is mounted in several places along the length of the insulator.

The advantages of this device are its advanced use functionality. It can be used both for high voltage transmission lines and for the catenary network of electrified railway transport. It can be attached both to vertically placed insulators and to horizontally placed insulators (pipe suspension at the catenary). The device easily and reliably attaches to the insulators and can work in places with strong winds and in places with heavy snowfall.

Figure 1 shows the device for protection of birds from electric shock in the catenary of electrified railway transport and high voltage transmission lines.

Figure 2 shows variants for connecting the device to differently mounted insulators.

An exemplary embodiment of the device is shown in FIG. 1, where: 1 - a connecting element of an electrically insulating material resistant to ultraviolet radiation, for example silicone rubber.

- an elastic connector resistant to ultraviolet radiation, for example a connector filled with black soot and a stabilizer 3 - pressed at one end thin insulating rods resistant to ultraviolet radiation.

Literature:

1. The invention 974482 - "Devices for protecting birds from electric shock on power lines"

2. Device for preventing the landing of birds on onopbi air power lines (variants - patent № 2393603 »

Claims (2)

Claims BACKGROUND OF THE INVENTION 1. A device for protecting birds from an electric shock in the contact network of electrified rail and high-voltage transmission lines, characterized in that it consists of a connecting element of an electro-insulating elastic material in which an elastic coupling is pressed and one end of a thin rods of electro-insulating material. Device according to item 1, characterized in that the number of thin electrically insulating bars fastened at one end in the connector is in the range of 5 to 10 and the diameter is from 1.5 to 4.00 mm.