RU220429U1 - Temporary mobile power line support - Google Patents

Abstract

A useful model is to reduce the labor intensity of installation work when carrying out repair and restoration work on power lines with the replacement of emergency power line supports. The technical result is achieved by the fact that when performing installation work to replace emergency supports, a temporary mobile power line support is used, containing three racks, with the first rack, the second rack and the third rack in the upper parts connected by a frame including a first horizontal element and a second horizontal element, to which the first post and the second post are mounted motionless at an angle symmetrically relative to each other, and also to the middle parts of the first horizontal element and the second horizontal element, the first vertical element and the second vertical element are installed, between which a third post is hingedly mounted in the center by means of an axis, and on Electrical insulators are installed in the first horizontal element. Recommended area of application - power lines with voltage 0.4-10 kV. 2 salary f-ly, 2 ill.

Description

Field of technology

The utility model relates to the field of electrical power engineering, namely, to the designs of mobile power line supports and can be used when carrying out repair and restoration work on power lines with the replacement of emergency power line supports.

State of the art

There is a known prefabricated lightweight support for emergency repair work on power lines (RU 2614180, published on March 23, 2017, IPC E04N 12/02), containing two X-shaped connected racks, a strut, three hinged sections, including a triangular base, horizontal beams located above and below the angle of intersection of the racks, a flexible traverse and flexible connections connecting the upper and lower ends of the racks. To reduce transport dimensions, the racks and base parts consist of two parts with a flange connection.

The disadvantages of the support are the multi-component design, which requires significant time-consuming assembly/disassembly, as well as the need for periodic tightening of the flexible connections of the support during operation, and as a result, high labor costs for emergency repair work on power lines.

The closest analogue of the claimed utility model is a quick-mounted power transmission line support (RU 183313, published 03/18/2018, MPK E04N 12/00), containing a rack with a traverse attached to the upper end, connected by four pairs of mutually perpendicular stops and braces. Opposite pairs of stops and braces are hingedly connected by common axes to the upper and lower ends of the rack, respectively. The stops consist of two overlapping parts. The stops and braces are fixed with clamps. Adjusting the location of fixation provides the ability to change the angles of inclination and vertical installation of the stand, regardless of ground unevenness.

The disadvantages of the support are significant time costs for assembly/disassembly and relatively large weight, and, as a consequence, high labor costs for emergency restoration work on power lines.

Disclosure of the essence of the utility model

The technical result of the claimed utility model is to reduce the labor intensity of installation work when carrying out repair and restoration work on power lines with the replacement of emergency power line supports.

The technical result is achieved by the fact that when performing installation work to replace emergency supports, a temporary mobile power line support is used, containing three racks, with the first rack, the second rack and the third rack in the upper parts connected by a frame including a first horizontal element and a second horizontal element, to which the first post and the second post are mounted motionless at an angle symmetrically relative to each other, and also to the middle parts of the first horizontal element and the second horizontal element, the first vertical element and the second vertical element are installed, between which a third post is hingedly mounted in the center by means of an axis, and on Electrical insulators are installed in the first horizontal element.

The first rack, second rack, third rack and frame are made of rectangular fiberglass pipes.

Weights are installed at the bases of the first rack, the second rack and the third rack.

The use of a utility model provides the stated technical result. Reducing the labor intensity of installation work when carrying out repair and restoration work on power lines with the replacement of emergency power line supports was achieved by simplifying the design and reducing the weight of the temporary mobile power line support.

Brief description of the drawings.

In fig. 1 and 2 show general views of a temporary mobile power line support in different projections.

In fig. 1 the following designations are adopted:

1. First stand;

2. Second stand;

3. Third stand;

4. The first horizontal frame element;

5. Second horizontal frame element;

6. First vertical frame element;

7. Second vertical frame element;

8. Axle;

9. Electrical insulator.

In fig. 2 the following notations are adopted:

1. First stand;

3. Third stand;

4. The first horizontal frame element;

5. Second horizontal frame element;

9. Electrical insulator.

Implementation of a utility model.

The claimed utility model contains racks 1 (Fig. 1 and 2), 2 (Fig. 1), 3 (Fig. 1 and 2), in the upper part connected to a frame consisting of horizontal elements 4 and 5 (Fig. 1 and 2 ), as well as vertical elements 6 and 7 (Fig. 1). Racks 1 (Fig. 1 and 2) and 2 (Fig. 2) are connected to the horizontal frame elements 4 and 5 (Fig. 1 and 2) in a fixed position. The rack 3 (Fig. 1 and 2) is mounted between the vertical frame elements 6 and 7 (Fig. 1) by means of an axis 8 (Fig. 1) in a hinged manner. The first horizontal element 4 (Figs. 1 and 2) simultaneously serves as a traverse to which electrical insulators 9 are attached (Figs. 1 and 2).

Installation of the declared temporary support is carried out as follows. On the ground, at the site where the temporary emergency power line support is installed, the frame is assembled by connecting its horizontal and vertical elements 4-7 (Figs. 1 and 2). Then racks 1 (Fig. 1 and 2) and 2 (Fig. 2) are attached to them; electrical insulators 9 (Fig. 1 and 2) are installed on the first horizontal element 4 (Fig. 1 and 2). To make connections, standardized fasteners are used: bolts and nuts with washers. Before further continuation of installation work, the upper part of the assembled support is lifted by the frame and installed on a support approximately one meter high. The rack 3 (Fig. 1 and 2) with its upper part is placed between the vertical elements 6 and 7 (Fig. 1) and is fixed by the axis 8 (Fig. 1).

After assembling the claimed support, the wires are connected to electrical insulators 9 (Fig. 1 and 2). The claimed support is lifted manually or using a hand winch by pulling the posts towards the middle. The estimated weight of a temporary emergency power line support made of rectangular fiberglass pipes, depending on the assortment used, is 100-140 kg. Therefore, installation of the claimed support can be carried out by 4-5 installers or using a hand winch with a force of at least 500 kg.

To ensure the necessary strength characteristics, racks 1-3 (Figs. 1 and 2) can be connected to each other by additional elements (cross members and braces) to form a truss structure. In order to increase resistance to wind loads, it is possible to attach additional weights to the bases of the racks 1-3 (Figs. 1 and 2), the mass of which is determined by calculations depending on the speed and direction of the wind.

To ensure a stable vertical position of the claimed support relative to the ground surface, it is recommended to additionally provide devices for adjusting the geometric dimensions (length) of the posts in the bases of the posts 1-3 (Figs. 1 and 2).

The claimed utility model is recommended for use when carrying out repair and restoration work on power lines with a voltage of 0.4-10 kV.

Claims (3)

1. A temporary mobile power line support containing three posts, characterized in that the first post, the second post and the third post are connected in the upper parts by a frame including a first horizontal element and a second horizontal element, to which the first one is mounted motionless at an angle symmetrically relative to each other a stand and a second stand, as well as to the middle parts of the first horizontal element and the second horizontal element, a first vertical element and a second vertical element are installed, between which a third stand is pivotally mounted in the center by means of an axis, and electrical insulators are installed on the first horizontal element. 2. The support according to claim 1, characterized in that the first rack, second rack, third rack and frame are made of rectangular fiberglass pipes. 3. The support according to claim 1, characterized in that weights are installed at the bases of the first rack, the second rack and the third rack.

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