CN202004405U - Overhead power transmission line conductor parallel-connection cable clamp - Google Patents

Abstract

The utility model discloses an overhead power transmission line conductor parallel-connection cable clamp which is provided with a cable clamp body (1) made of rigid metal conductor material, two conductor sub-clamp bodies (2) with a certain distance are arranged on the cable clamp body (1), a conductor sub-trough (4) is arranged on each conductor sub-clamp body (2), and two conductor sub-troughs (4) are parallel mutually; the parallel-connection cable clamp is also provided with a jumper conductor clamp body (3), and a jumper conductor slot (5) is arranged on the jumper conductor clamp body (3). By adopting the technical scheme, the overhead power transmission line conductor parallel-connection cable clamp is suitable for current succession among the split sub-conductors of the power transmission line, has good effect on solving the problem of overheating of a tension-resisting current plate of spit conductors of the overhead power transmission line, is convenient to install, and is particularly suitable for the built overhead power transmission line.

Description

Parallel clamp for conductors of overhead transmission lines

technical field

The utility model belongs to the technical field of power supply engineering, and relates to a power transmission line. More specifically, the utility model relates to a wire parallel clamp of an overhead power transmission line.

Background technique

At present, the conductors of 500kV overhead transmission lines in my country generally adopt the form of four splits. When the line transmits a large load, the load current increases accordingly. At this time, the strain relief plate will generate heat due to insufficient conductive cross-section.

Utility model content

The problem to be solved by the utility model is to provide a parallel clamp for overhead transmission line conductors, the purpose of which is to use parallel drain wires to reduce the heat generated by the overcurrent of the tension drain plate.

In order to achieve the above object, the technical scheme that the utility model takes is:

The utility model provides an overhead power transmission line wire parallel clamp, the overhead power transmission line wire includes a plurality of sub-wires, the parallel wire is clamped with a clamp body made of rigid metal conductor material, and the wire clamp The body is provided with two sub-conductor clips with a certain distance apart, and each sub-conductor clip is provided with a sub-conductor slot, and the two sub-conductor slots are parallel to each other; the parallel clamps are also A drainage wire clip body is provided, and a drainage wire slot is arranged on the drainage wire clip body.

The sub-conductor of the overhead transmission line is placed in the sub-conductor groove, and a conductor pressing plate is provided on the sub-conducting clamp body, and the conductor pressing plate is provided with a groove corresponding to the shape of the sub-conducting wire , and use the wire clamping plate to compress the sub-wire on the sub-wire clamp body through the fastening bolt; put the drain wire into the drain wire slot, and place the drain wire in the drain wire clamp The body is provided with a drainage line pressing plate, and the drainage line pressing plate is provided with a groove corresponding to the shape of the drainage line, and the drainage line pressing plate is used to press the drainage line on the described drainage line through fastening bolts. on the clamp body of the drain wire.

The sub-conductor and the drain wire form an angle less than 90°.

The utility model adopts the above-mentioned technical scheme, is suitable for the current connection between the split sub-conductors of the transmission line, and has a good effect on dealing with the overheating problem of the split conductor of the overhead transmission line. Used on transmission lines.

Description of drawings

The following is a brief description of the content expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is the connection structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the structure of the wire clip body in the utility model;

Fig. 3 is the structural representation of the sub-wire pressing plate in the utility model;

Fig. 4 is a structural schematic diagram of the drainage line pressing plate in the utility model.

Labeled in the figure:

1. Wire clamp body, 2. Sub-conductor clamp body, 3. Drainage wire clamp body, 4. Sub-conductor groove, 5. Drainage wire groove, 6. Sub-conductor pressure plate, 7. Sub-conductor wire, 8. Drainage wire, 9. Tightening bolts, 10, drainage line pressing plate.

Detailed ways

Below with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model, such as the shape, structure, mutual position and connection relationship between each part, the function and working principle of each part, and manufacturing of the utility model. Processes, operation methods, etc. are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present utility model.

The structure of the present invention as shown in Fig. 1 to Fig. 4 is a parallel clamp for overhead transmission line conductors, and the overhead transmission line conductors include a plurality of sub-conductors 7 . The conductors of 500kV overhead transmission lines in my country generally adopt the form of four splits. When the line transports a large load, its load current increases accordingly, and at this time, the strain relief plate will generate heat due to insufficient conductive cross-section.

In order to solve the problems existing in the current known technology described in the background technology section of this specification and overcome its defects, parallel drain wires are used to achieve the invention goal of reducing the heat generated by the overcurrent of the tension drain plate. The technical solution adopted by the utility model for:

As shown in Figures 1 to 4, the utility model provides a parallel clamp for overhead transmission line conductors, the parallel clamp is provided with a clamp body 1 made of a rigid metal conductor material, and the clamp body 1 There are two sub-conductor clips 2 separated by a certain distance, and each sub-conductor clip 2 is provided with a sub-conductor slot 4, and the two sub-conductor slots 4 are parallel to each other; the parallel connection The wire clip is also provided with a drain wire clip body 3, and a drain wire slot 5 is provided on the drain wire clip body 3.

In the above technical proposal of the utility model, the four-split wires are connected in parallel two by two, realizing the parallel connection of the currents on the two-split wires to one wire. A parallel circuit is used to reduce the current flowing through the drain plate, thereby solving the problem of heating of the drain plate. The parallel clamp is to connect the four-split wires in parallel and then draw two parallel wires to connect to the drain line, and form a parallel circuit with the drain plate, thereby reducing the current flowing through the drain plate and solving the heating problem of the drain plate .

The sub-conductor 7 of the overhead transmission line described in the utility model is inserted into the sub-conductor groove 4, and a conductor pressing plate 6 is arranged on the described sub-conducting clamp body 2, and the described conducting conductor pressing plate 6 is provided with the described sub-conductor. The shape of the sub-conductor 7 is corresponding to the groove, and the sub-conductor 7 is pressed on the sub-conductor clamp body 2 through the fastening bolt 9 by the described conductor pressing plate 6; the drain wire 8 is inserted into the In the above-mentioned drainage wire groove 5, a drainage wire pressing plate 10 is provided on the described drainage wire clamp body 3, and the described drainage wire pressing plate 10 is provided with a groove corresponding to the shape of the described drainage wire 8, and adopts the described The drain wire pressing plate 10 presses the drain wire 8 on the drain wire clamp body 3 through fastening bolts 9 .

The utility model provides the above-mentioned diversion mode of parallel connection and fastening of the sub-conductors of the split transmission line, and collects the currents flowing on the two sub-conductors.

The parallel connection clamp is made of aluminum alloy material, and the two sub-conductors are hard-connected by using the bolt clamp connection method. And the current connection is carried out through the equipment clamp at the bottom.

It is composed of three wire clips through hard connection to form a whole. It is mainly suitable for the current connection between the split sub-conductors of the transmission line. It has a good effect on dealing with the overheating of the split conductors of the overhead transmission line. It is suitable for use on established overhead transmission lines.

The sub-conductor 7 and the drain wire 8 form an angle less than 90°. Make the drainage line sag a natural bend.

Bolt-type equipment clamps are attached below the clamps connecting the two sub-conductors.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (3)

1. overhead transmission line conductor wire clamp in parallel, described overhead transmission line conductor comprises many roots lead (7), it is characterized in that: described wire clamp in parallel is established the wire clamp body of being made by the metallic conductor of rigidity (1), establish two sub-conductor clamps (2) on the described wire clamp body (1) at a distance of a segment distance, respectively establish a sub-metallic channel (4) on each described sub-conductor clamp (2), these two described sub-conductor grooves (4) are parallel to each other; Described wire clamp in parallel also is provided with drainage thread clamp (3), and described drainage thread clamp (3) is provided with a drainage wire casing (5).

2. according to the described overhead transmission line conductor of claim 1 wire clamp in parallel, it is characterized in that: the sub-conductor of described overhead transmission line (7) is inserted in the described sub-conductor groove (4), on described sub-conductor clamp (2), establish lead pressing plate (6), described lead pressing plate (6) is provided with and described sub-conductor (7) shape corresponding grooves, and adopts described lead pressing plate (6) by fastening bolt (9) described sub-conductor (7) to be pressed on the described sub-conductor clamp (2); Drainage thread (8) is inserted in the described drainage wire casing (5), on described drainage thread clamp (3), establish drainage thread pressing plate (10), described drainage thread pressing plate (10) is provided with and described drainage thread (8) shape corresponding grooves, and adopts described drainage thread pressing plate (10) by fastening bolt (9) described drainage thread (8) to be pressed on the described drainage thread clamp (3).

3. according to the described overhead transmission line conductor of claim 2 wire clamp in parallel, it is characterized in that: described sub-conductor (7) and described drainage thread (8) form one less than 90 ° angle.

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