CN216981486U

CN216981486U - 35kV double-circuit cable climbing rod and terminal rod integrated device

Info

Publication number: CN216981486U
Application number: CN202122499567.6U
Authority: CN
Inventors: 沈立
Original assignee: Shanghai Electric Power Design Institute Co Ltd
Current assignee: Shanghai Electric Power Design Institute Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-07-15
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a 35kV double-circuit cable climbing rod and terminal rod integrated device which is arranged at the upper end of a cable terminal rod; the cable terminal rod is symmetrically provided with two loops of overhead lines; each return overhead line comprises an A-phase overhead line, a B-phase overhead line and a C-phase overhead line; the cable terminal rod is provided with three parallel brackets below each pair of A-phase overhead lines, each pair of B-phase overhead lines and each pair of C-phase overhead lines corresponding to the two loops of overhead lines; both sides of each grade of support are provided with cross arm insulators; each cross arm type insulator is provided with a lead wire; the A-phase overhead line, the B-phase overhead line and the C-phase overhead line of each return overhead line are connected with a cable terminal and a lightning arrester through corresponding lead wires; each cable terminal is connected with a cable arranged in the Hough protection tube; each half protection pipe is connected with an underground cable channel. The utility model can effectively reduce the number of platforms, thereby reducing the occupied area and realizing the efficient application of the cable pole climbing device.

Description

35kV double-circuit cable climbing rod and terminal rod integrated device

Technical Field

The utility model relates to the technical field, in particular to a 35kV double-circuit cable climbing rod and terminal rod integrated device.

Background

With the increasing shortage of land resources, the corridor of the overhead transmission line is fully utilized, and the overhead transmission line is mainly erected by adopting double loops or multiple loops preferentially.

Limited by structures on two sides of the existing corridor and the width of a planned road, most of lines cannot be completely newly built with overhead lines, and the overhead lines need to be transferred to a cable to be laid in the ground at the positions of passing and entering the station, so that cable climbing platforms need to be arranged at the positions of transferring the cables from the overhead lines to the cable.

Particularly, in the actual construction process of the area with extremely short land resources like Shanghai, the conditions of higher compensation cost, influenced construction progress and the like are often caused by contradiction with urban greening and underground municipal pipeline conflict.

In view of the above reasons, how to effectively reduce the number of platforms and thus reduce the occupied area, achieving efficient application of the cable climbing device becomes a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model provides a 35kV double-circuit cable climbing rod and terminal rod integrated device, and aims to effectively reduce the number of platforms, reduce the occupied area and realize the efficient application of the cable climbing rod device.

In order to achieve the purpose, the utility model discloses a 35kV double-circuit cable climbing rod and terminal rod integrated device which is arranged at the upper end of a cable terminal rod; two loops of overhead lines are symmetrically arranged on two sides of the upper end of the cable terminal rod; and each loop of the overhead lines comprises an A-phase overhead line, a B-phase overhead line and a C-phase overhead line.

The cable terminal rod is provided with three parallel brackets below each pair of the A-phase overhead lines, each pair of the B-phase overhead lines and each pair of the C-phase overhead lines corresponding to the two loops of the overhead lines;

both sides of each support are provided with a cross arm type insulator;

each cross arm type insulator is provided with a lead wire;

the phase A overhead line, the phase B overhead line and the phase C overhead line of each return overhead line are connected with a cable terminal and a lightning arrester through corresponding lead wires;

each cable terminal is connected with a cable arranged in the Hough protection tube;

each half protection pipe is connected with an underground cable channel, so that the corresponding cable enters the underground cable channel through the half protection pipe.

Preferably, in the third gear of the support, the support located at the top is provided with one cross arm insulator, the support located at the middle is provided with two cross arm insulators, and the support located at the bottom is provided with three cross arm insulators.

Preferably, each of the lead wires is connected to the corresponding a-phase overhead wire, the corresponding B-phase overhead wire, or the corresponding C-phase overhead wire by a down-lead clip.

Preferably, each of the conductor leads is connected to a corresponding one of the cable terminations and a corresponding one of the arresters by a T-shaped clamp.

Preferably, each of the cable terminals and each of the arresters are fixed to the arrester and the cable terminal support platform.

Preferably, each half protection tube is provided with an aluminum alloy hoop, and the aluminum alloy hoop is fixed with the cable terminal rod.

The utility model has the beneficial effects that:

the utility model optimizes the form of the cable climbing platform at the terminal of the double-loop 35kV overhead line, only needs to newly establish one climbing platform device to realize that two loops of lines are simultaneously transferred to the cable to be laid in the ground, thereby increasing the width of the aerial platform, optimizing the electrical clearance of the lightning arrester platform, saving the construction cost and beautifying the urban interface.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is a schematic side view of one embodiment of the present invention.

Fig. 2 is a schematic side view of another embodiment of the present invention.

Fig. 3 is a schematic top view of the structure of the present invention.

Detailed Description

Examples

As shown in fig. 1 to 3, the 35kV double-circuit cable climbing rod and terminal rod integrated device is arranged at the upper end of the cable terminal rod 1; two loops of overhead lines are symmetrically arranged on two sides of the upper end of the cable terminal rod 1; each return overhead line comprises an A-phase overhead line, a B-phase overhead line and a C-phase overhead line.

Wherein, the cable terminal rod 1 is provided with three parallel brackets 5 below each pair of A-phase overhead lines, each pair of B-phase overhead lines and each pair of C-phase overhead lines corresponding to the two loops of overhead lines;

both sides of each gear bracket 5 are provided with cross arm type insulators 2;

each cross arm type insulator 2 is provided with a lead wire 3;

the A-phase overhead line, the B-phase overhead line and the C-phase overhead line of each return overhead line are connected with a cable terminal 9 and a lightning arrester 8 through corresponding lead wires 3;

each cable terminal 9 is connected with a cable 6 arranged in the Hough protection tube 7;

each huff protection tube 7 is connected with the underground cable channel, so that the corresponding cable 6 enters the underground cable channel through the huff protection tube 7.

The principle of the utility model is as follows: the lead wires 3 of the A-phase overhead wires, the B-phase overhead wires and the C-phase overhead wires are fixed by the cross arm type insulator 2, the lead wires 3 can be directly connected to the cable terminal 9, the cables 6 are connected through the cable terminal 9, and the two loops of the A-phase overhead wires, the B-phase overhead wires and the C-phase overhead wires are respectively connected with the cables 6 of corresponding phases after being led down by the lead wires 3 on two sides, so that the device which originally needs two independent single-loop leading-down pole climbing platforms is integrated into one device to be realized.

Through the electric clearance verification, the size of the platform of the lightning arrester and the cable terminal bracket is 1.2m multiplied by 2.4m, and the area of the platform is reduced by about 31 percent compared with that of the platform at the current situation 2.

In some embodiments, in the third-gear rack 5, the uppermost rack 5 is provided with one cross-arm insulator 2, the middle rack 5 is provided with two cross-arm insulators 2, and the lowermost rack 5 is provided with three cross-arm insulators 2.

In some embodiments, each wire lead 3 is connected to the corresponding a-phase overhead wire, the corresponding B-phase overhead wire, or the corresponding C-phase overhead wire through the down-lead clip 10.

In certain embodiments, each wire lead 3 is connected to a respective cable termination 9 and a respective lightning arrester 8 by a T-clamp 4.

In certain embodiments, each cable termination 9 and each arrester 8 is fixed on an arrester and cable termination stand platform 11.

In some embodiments, each huff protection tube 7 is provided with an aluminum alloy hoop 12, and is fixed to the cable terminal rod 1 through the aluminum alloy hoop 12.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

The 1.35kV double-circuit cable climbing rod and terminal rod integrated device is arranged at the upper end of the cable terminal rod (1); two loops of overhead lines are symmetrically arranged on two sides of the upper end of the cable terminal rod (1); each loop of the overhead lines comprises an A-phase overhead line, a B-phase overhead line and a C-phase overhead line; the method is characterized in that:

the cable terminal rod (1) is provided with three parallel brackets (5) below each pair of the A-phase overhead lines, each pair of the B-phase overhead lines and each pair of the C-phase overhead lines corresponding to the two loops of the overhead lines;

both sides of each bracket (5) are provided with cross arm type insulators (2);

each cross arm type insulator (2) is provided with a lead wire (3);

the phase A overhead line, the phase B overhead line and the phase C overhead line of each return overhead line are connected with a cable terminal (9) and a lightning arrester (8) through corresponding lead wires (3);

each cable terminal (9) is connected with a cable (6) arranged in the Hough protection tube (7);

each half protection pipe (7) is connected with an underground cable channel, so that the corresponding cable (6) enters the underground cable channel through the half protection pipe (7).
2. The 35kV double-circuit cable climbing and terminal rod integrated device according to claim 1, wherein one cross-arm insulator (2) is disposed on the uppermost bracket (5), two cross-arm insulators (2) are disposed on the middle bracket (5), and three cross-arm insulators (2) are disposed on the lowermost bracket (5) in the three-stage bracket (5).
3. The 35kV double-circuit cable climbing and terminal pole integrated device according to claim 1, wherein each of the lead wires (3) is connected to the corresponding a-phase overhead wire, the corresponding B-phase overhead wire or the corresponding C-phase overhead wire through a down-lead clamp (10).
4. 35kV double-circuit cable climbing and terminal rod integrated device according to claim 1, characterized in that each of the lead wires (3) is connected with the corresponding cable terminal (9) and the corresponding lightning arrester (8) by a T-clamp (4).
5. The 35kV double-circuit cable climbing pole and terminal pole integrated device according to claim 1, wherein each of the cable terminals (9) and each of the arresters (8) are fixed on an arrester and cable terminal support platform (11).
6. The 35kV double-circuit cable climbing and terminal rod integrated device according to claim 1, wherein each half protection tube (7) is provided with an aluminum alloy hoop (12), and is fixed with the cable terminal rod (1) through the aluminum alloy hoop (12).