RU2802048C1 - Device for fixing a short circuit indicator on a wire of an overhead power line - Google Patents

Abstract

FIELD: electric power industry.

SUBSTANCE: invention is used to install a short circuit indicator (SCI) on the wire of an overhead power line. The device for attaching the SCI to the wire (1) of the overhead power line, located in the upper part of the housing (2) of the SCI, contains a base (3), a clamping bracket (5) mounted movably on the axle (8), the thrust bracket (9) made in one piece with the base, and the spring (4). The clamping bracket (5) is made with a notch (7) for the wire and a stop (6) on the side surface, which is provided with a blind hole (16). Moreover, a hole (12) is made in the clamping bracket, in which the L-shaped end (14) of the spring is placed. In the base (3), an inclined slot (13) is made, in which the U-shaped end of the spring (15) is placed. The thrust bracket (9) is made with a notch (10) for the wire, and on its side surface there is a protrusion (17) interacting with the spacer rod (11), the second end of which is located in the blind hole (16) of the clamping bracket stop.

EFFECT: simplifying the design of the device and reducing its weight.

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Description

The invention relates to the field of electric power industry and can be used to install a short circuit indicator (SIC) on a wire of an overhead power line (OHTL).

From the prior art devices for IKZ of various types are known, which can be installed on the wire of high-voltage power lines without turning off the current supply, using insulating rods.

A similar device is known, consisting of two swivel brackets, which, when installed in the glass of the insulating rod, are bred and held in the unclenched state until the brackets of the glass of the insulating rod are installed on the wire of the high-voltage power line. When the clamp is approached to the wire, the fitter presses the clamp bed against the wire with an upward movement, while the holding clamps of the clamp in the divorced state disengage from the clamp clamps of the rod and the clamp clamps tightly cover the wire, (see - OKB ASTRO. short circuit of the high voltage transmission line Astron-7080. Operation manual. ALKYA. 425148.001 RE. Moscow, 2009)

The disadvantage of the analogue is that when removing the IKZ from the wire, the grip of the rod clings to the IKZ entered into it and the installer, by moving the rod down, breaks the IKZ from the wire. In this case, the force applied to remove the IKZ from the wire is approximately 30 kg s (300 N)

A similar device is known, consisting of one clamping bracket that presses the wire to the base of the clamp, which is part of the IKZ body. (see - Installation of IKZ "Antrax" without turning off the line voltage https://voutu.be/xeOEi15pJVY)

The disadvantage of the analogue is that when removing the IKZ from the wire, you have to exert great effort, which requires great physical exertion from the performer, in addition, the operations are difficult to perform and create an increased risk of injury when working at height.

A similar device is known for attaching a short circuit indicator (IKZ) to an overhead power line wire, installed in the upper part of the IKZ case, which contains two brackets: clamping and thrust, designed to cover and hold the overhead power line wire between them, the brackets are mounted on axes, fixed on the base of the clamp, and have the ability to rotate on these axes, while the clamping bracket is equipped with a spring designed to move this bracket towards the stop bracket, the stop bracket is equipped with a spacer guard rod capable of holding the stop bracket from the clamping bracket at a distance that allows the passage of the wire into the clamping space of the brackets, and the stop bracket is equipped with a folding stop lever that holds it in a stationary state relative to the base of the clamp in the “ICZ on the wire” position, while in the “ICZ on the wire” position there is a gap between the clamping bracket and the stop on the clamp base , which allows you to move the stop bracket from its place when the folding stop lever is turned upwards due to the force developed by the clamping bracket (see RF patent No.

The disadvantage of analog is that the device is very complicated.

The closest device for the same purpose to the claimed invention in terms of a combination of features is a device for attaching a short circuit indicator (SCI) to an overhead power line wire, installed in the upper part of the IKZ case, which contains a clamping bracket with a notch for the wire, mounted movably on an axis and equipped with mounted on the same axis by a spring, a support bracket with a similar recess, having an axis with a spacer rod movably fixed on it, interacting with the stop of the clamping bracket, a folding thrust lever is placed on the body, and the support bracket is made integral with the body, and the spring of the clamping bracket is made interacting with the short end of the folding thrust lever, and the top of the brackets is made with slots, in addition, the edges of one bracket are placed opposite the slots of the other bracket, (see RF patent No. 2778935 IPC H01R 4/00, H02G 7/05, publ. Bulletin No. 25 selected for the prototype)

The disadvantage of the prototype is that the device is very complex. The base of the device is very thick. In addition, the brackets are very long, since the wire of the overhead power line rests against the spacer rod, in which one end is installed on the axis, and the other end rests against the base (IKZ).

The technical result lies in the fact that the device is simplified and its weight is reduced, in addition, only one spacer rod is required for all installed indicators (IKZ).

The specified technical result is achieved by the fact that the device for fastening the short circuit indicator (SIC) to the wire of an overhead power line, located in the upper part of the ICZ body, contains a base equipped with a spring clamping bracket, with an emphasis on the side surface and a recess for the wire, mounted movably on axis, with a similar recess for the wire, a stop bracket, a spacer rod that interacts with the stop of the clamping bracket to hold the clamping bracket in the open state, while the peculiarity is that a hole is made in the clamping bracket, and an inclined slot is made at the base, and L-shaped the end of the spring is placed in the hole of the clamping bracket, and the U-shaped end of the spring is placed in the inclined slot of the base, the stop of the clamping bracket is provided with a blind hole, and the stop bracket is made integral with the base, in addition, a projection interacting with the spacer is placed on the side surface of the stop bracket a rod, the second end of which is placed in the blind hole of the stop of the clamping bracket.

Additionally, the claimed device for fastening the short circuit indicator to the wire of the overhead power line is characterized by the fact that the L-shaped end of the spring placed in the hole of the clamping bracket is bent.

Additionally claimed device for mounting a short circuit indicator (SIC) on the wire of an overhead power line, is characterized by the fact that the body of the SIC is made, for example, square

Additionally claimed device for attaching a short circuit indicator to an overhead power line wire is characterized in that the spacer rod is attached with a cord to an insulating rod or cup.

The claimed invention is illustrated by drawings.

Fig. 1 - device, at the time of installation on the wire of the power line. Fig. 2 - a device installed on a power line wire. Fig. 3 - device, at the time of removal from the wire of the power line.

The drawings show wire 1 of an overhead power line, housing 2 (IKZ), base 3 of the device, spring 4, clamping bracket 5 with stop 6 on the side surface, Recess 7 for wire 1. Axis 8. Made in one piece with base 3 thrust bracket 9 with a similar notch 10 for wire 1. Spacer rod 11. In the clamping bracket 5, a hole 12 is made, and in the base 3 an inclined slot 13, the L-shaped end 14 of the spring 4 is placed in the hole 12 and the end of the spring is bent to prevent the spring 4 falls out of the hole 12. The U-shaped end 15 of the spring 4 is placed in the inclined slot 13 of the base 3. The stop 6 of the clamping bracket 5 is provided with a blind hole 16. which is placed in the blind hole 16 of the stop 6 of the clamping bracket 5. The spacer rod 11 is attached by a cord 18 to an insulating rod 19 or a square cup 20 placed on an insulating rod 19. One of the faces 21 of the square cup 20 is higher than the other three (shown by a dotted line, see Fig. 1).

Installation of IKZ on a wire of a power line.

The initial position of the device is shown in figure 1. The IKZ is installed in a square cup 20 of the insulating rod 19 so that the high edge 21 is located under the wire 1. on the spacer rod 11, which is displaced from the protrusion 17. The clamping bracket 5 rotates clockwise under the action of the spring 4 and securely clamps the wire 1, which is placed in the recesses 7 and 10. At the same time, the spacer rod 11 is discarded and hangs on the cord 18, the second end of which attached to the insulating rod 19 or square sleeve 20. Now you can lower the insulating rod.

Removal of IKZ from a wire of a power line.

Raise the insulating rod 19. Moreover, the high face 21 should be located under the spring 4. With further lifting of the insulating rod 19, the high face 21 of the square cup 20 presses from below on the U-shaped end 15 of the spring 4, which, under the action of the applied force, begins to rise and slide along the inclined surface inclined slot 13. As a result, the U-shaped end 15 of the spring 4 is removed from the inclined slot 13 of the base 3. The installer begins to rotate the rod at a small angle back and forth. The rotational force of the insulating rod 19 will displace the clamping bracket 5 and the device will open (see figure 3).

Thus, the above information testifies to the fulfillment of the following set of conditions when using the claimed invention:

- a tool that embodies the claimed invention in its implementation, is intended for use in the electric power industry for installing a short circuit indicator (SIC) on the wire of an overhead power line (OHTL) and for removing it from the wire (OHTL).

- for the claimed device in the form as it is described in the independent paragraph of the stated claims, the possibility of its implementation using the means and methods described in the application or known before the priority date is confirmed;

- a tool that embodies the claimed invention in its implementation, capable of achieving the technical result perceived by the applicant.

- the advantage of the invention lies in the fact that the device is simplified by eliminating the emphasis on the base, and the base itself "IKZ" becomes thinner. The length of the brackets is reduced and, as a result, the weight of the device is reduced. Only one spacer rod is required for all installed indicators (IKZ).

Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (4)

1. A device for attaching a short circuit indicator (IKZ) to an overhead power line wire, located in the upper part of the IKZ case, containing a base, a spring-loaded clamping bracket, with an emphasis on the side surface and a notch for the wire mounted movably on the axis, with a similar recess for the wire, a stop bracket, a spacer rod that interacts with the stop of the clamping bracket to hold the clamping bracket in the open state, characterized in that a hole is made in the clamping bracket, and an inclined slot is made in the base, and the L-shaped end of the spring is placed in the hole of the clamping bracket, and the U-shaped end of the spring is placed in the inclined slot of the base, the stop of the clamping bracket is provided with a blind hole, and the stop bracket is made integral with the base, in addition, a protrusion is placed on the side surface of the stop bracket, which interacts with the spacer rod, the second end of which is placed in blind hole of the stop of the clamping bracket. 2. A device for attaching a short circuit indicator (SIC) to an overhead power line wire according to claim 1, characterized in that the L-shaped end of the spring, located in the hole of the clamping bracket, is bent. 3. A device for attaching a short circuit indicator (SIC) to the wire of an overhead power line according to claim 1, characterized in that the SIC body is made, for example, square. 4. A device for attaching a short circuit indicator (SIC) to an overhead power line wire according to claim 1, characterized in that the spacer rod is attached with a cord to an insulating rod or cup.

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