RU207772U1 - PORTABLE DEVICE FOR REPAIRING CURRENT PARTS - Google Patents

Abstract

The utility model can be used in the design of a portable device for a repair fence to warn personnel working on disconnected sections of 35 kV block structures about approaching live parts with a dangerous voltage. and also in improving the convenience of carrying, mounting and dismantling the device. The above technical results are achieved in a device that includes warning signs and a means of attachment to the switchgear, in that the device includes two tubes and a rod made of dielectric material, and the tubes are connected to vertical bar, warning signs are located between the horizontal tubes on both sides of the vertical bar, and the fastening means is fixedly attached to the vertical bar and is made in the form of a screw clamp for portable grounding. 2 c.p. f-ly, 2 dwg

Description

The field of technology.

The utility model relates to the field of electrical engineering and can be used in the design of a portable device for repairing live parts to warn personnel working on disconnected sections of 35 kV block structures about approaching live parts with dangerous voltage.

State of the art.

From the prior art, for example, from the description of the patent RU100677U1, IPC H01R 4/30, publ. 12/20/2010, the known design of a screw clamp for portable grounding, made with the possibility of connection to an insulating rod.

From the level of technology, see, for example: Chernev K.K. "The use of protective equipment in electrical installations." M.-L., Gosenergoizdat, 1963 (Electrician's Library, issue 91), pp. 44-45, the design of an insulating rod for installing portable grounding is known. The design of the rod includes a lug for connecting a screw terminal of a portable grounding, an insulating part and a handle. The screw clamp for portable earthing is tightened by turning the handle of the isolation rod.

Requirements for the design of insulating rods and materials for their execution are given in GOST 20494-2001.

From the prior art, see, for example: L. D. Rozhkova, L. K. Karneeva, T. V. Chirkova. "Electrical equipment of power plants and substations": textbook, 10th ed., Sr., M .: Publishing center "Academy", 2013, pp. 414-415, - known open switchgear (hereinafter - OSG) voltage 35 kV with removable maintenance fence.

The above-mentioned removable repair fence is made in the form of a lattice and is equipped with fixing devices for mounting on the upper platform of the outdoor switchgear.

The disadvantages of the fence are the need to turn off the outdoor switchgear before installing the fence and the need to lift the fitters to the upper platform of the outdoor switchgear to install the fence.

Other disadvantages are the bulkiness and indestructibility of the structure, significant weight and dimensions of the fence.

For the closest analogue of the claimed utility model, the design of a portable device for repairing live parts, known from the description of patent US10784657B2, IPC F16G 11/14; Н02В 1/14; Н02В 1/52; Н02В 3/00, publ. 05/09/2019 The design of an analogous device includes a panel made of electrical insulating material and fastening devices in the form of L-shaped hooks.

To attach the safety panel, at least two hooks and corresponding surfaces are needed, located at the same level on the switchgear, to which these hooks can be attached.

The device is lifted by two fitters and hung by hooks on the protruding part of the switchgear, for example, on the horizontally located side break switch bar.

The analog design has numerous disadvantages:

- the need to turn off the outdoor switchgear before installing the device;

- the need to use at least two fitters for installation and dismantling of the device;

- a limited number of places suitable for mounting the device on the outdoor switchgear, due to the need to hang the device on an extended horizontal surface;

- low reliability of fastening the device to the outdoor switchgear, due to the lack of means of fixing the position of the device;

- significant windage of the device and the possibility of swaying and falling under wind gusts, damage to the switchgear equipment and injury to the maintenance personnel.

Disclosure of the essence of the utility model.

The task to be achieved by the utility model is to create a device design characterized by low weight, low installation time, the ability to install and remove the device by one fitter, ease of transportation, installation and dismantling, low windage, high reliability of fastening to the switchgear and low requirements for the place of installation at the outdoor switchgear.

The technical results to be achieved by the utility model consist in increasing the reliability of the device fastening, as well as in increasing the convenience of carrying, mounting and dismantling the device.

The above technical results are achieved in a portable device for repairing live parts, which includes warning plates made of dielectric material and a means of fastening to the outdoor switchgear.

These technical results are achieved by the fact that the portable device for the repair fence of live parts additionally includes two horizontal tubes and a vertical rod made of dielectric material, the tubes being connected to the rod, warning signs are located between the horizontal tubes on both sides of the vertical rod, and the means the fasteners are fixedly attached to the rod and made in the form of a screw clamp for portable grounding.

In this case, in preferred embodiments of the utility model, the connection between the tube and the rod can be made using threaded elements, and the female threaded elements can be made in the form of wing nuts.

Brief description of the drawings.

The utility model is illustrated by the following pictures.

FIG. 1 shows the device selected for the closest analogue.

FIG. 2 shows the claimed device.

The positions in FIG. 2 are marked:

1 - portable device for repair fencing of live parts;

2, 3 - horizontal tubes made of dielectric material;

4, 5 - warning plates made of dielectric material;

6 - vertical rod made of dielectric material;

7 - clamp;

8 - wing nut;

9 - screw clamp for portable grounding;

10 - the protruding part of the clamping screw of the screw clamp.

Implementation of the utility model.

The utility model (see Fig. 2) can be implemented in the design of the device 1, which includes warning plates 4, 5 made of dielectric material and a means of fastening to an open switchgear.

To implement the utility model, the following changes are made in the design of device 1.

The device is additionally equipped with two horizontal tubes 2, 3, and a vertical bar 6 made of dielectric material.

As the dielectric material for the warning labels, vertical bar and horizontal tubes, fiberglass, polyvinyl chloride (PVC), high pressure polyethylene (LDPE), or other similar materials known in the art can be used.

Horizontal tubes 2, 3 are connected to the vertical bar 6, and warning signs are placed between the horizontal tubes 2, 3 on either side of the vertical bar 6.

The means for fastening the portable device for the repair fence of live parts is made in the form of a standard screw clamp 9 for portable grounding, which is fixedly attached to the vertical rod 6 in its lower part.

The connection of the screw clamp 9 for portable grounding to the vertical rod 6 can be done, for example, using threaded connections.

The connection of the tubes 2, 3 to the rod 6 in the embodiment shown in FIG. 2 includes a clamp 7 and two pairs of threaded elements. It is possible to connect pipes 2, 3 with a rod and without clamps.

In the rod 6, through fastening holes are made for pin threaded elements, which can be used, for example, screws or bolts.

To increase the ease of use of the device, it is preferable that the socket threaded elements are made in the form of wing nuts 8, the use of which makes it possible to dispense with tools when disassembling and moving the portable device for repairing live parts.

The attachment of warning labels 4, 5 can be done in different ways.

Plates can be attached to horizontal pipes using threaded fasteners or plastic clamps or plastic hinges.

The plates can also be provided with holders of dielectric material provided with means for attaching to horizontal tubes, as shown in FIG. 2.

A portable device for repairing live parts is used as follows.

The disassembled device is delivered to the outdoor switchgear, part of the equipment of which is going to be turned off for repair.

Connect the horizontal tubes 2, 3 to the vertical rod 6 with a screw clamp 9 installed on it for portable grounding.

Attach warning labels 4, 5 made of dielectric material to the horizontal tubes 2, 3 on either side of the vertical rod 6.

An insulating rod is connected to the protruding part 10 of the clamping screw of the screw clamp 9 for installing portable grounding.

The fitter lifts the portable device 1 of the repair fencing of live parts on an insulating rod and brings it to the switchgear.

Then the fitter puts a structural element of the outdoor switchgear into the gap between the upper shelf and the support of the screw clamp 9 and turns the clamping screw of the screw clamp 9 by rotating the handle of the insulating rod, reliably fixing the portable device 1 of the repair fence of live parts on the outdoor switchgear.

For the installation of the screw clamp 9, elements of the outdoor switchgear structure are suitable, for example, a channel or a corner.

Device 1 is installed on the outdoor switchgear.

Dismantling of device 1 is carried out in the reverse order.

Due to the absence of the need to turn off the outdoor switchgear before installing device 1 and the absence of the need for the fitter to climb to the upper platform of the outdoor switchgear, the time required for installation and dismantling of the device is sharply reduced, and the convenience of installation and dismantling of the device is increased.

Due to the fastening of device 1 at one point of the switchgear, the time required for installation and dismantling of the device is also reduced and the convenience of installation and dismantling of the device is increased.

Thanks to the use of a screw clamp for portable grounding, the reliability of fixing the device to the outdoor switchgear is increased.

The use of wing nuts increases the usability of the device.

The conducted patent research has confirmed the global novelty of the proposed technical solution.

The creation and operation of prototypes of the device proved the reality of achieving the declared technical results and the industrial applicability of the utility model.

Claims (3)

1. A portable device for repairing live parts, including warning plates made of dielectric material and means of attachment to an open switchgear, characterized in that the device additionally includes two horizontal tubes and a vertical bar made of dielectric material, and the tubes are connected to vertical bar, warning signs are located between the horizontal tubes on both sides of the vertical bar, and the fastening means is fixedly attached to the vertical bar and is made in the form of a screw clamp for portable grounding. 2. The device according to claim 1, characterized in that the connection of the tube and the rod is made using threaded elements. 3. The device according to claim 2, characterized in that the female threaded elements are made in the form of wing nuts.

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