CN205046907U - Four telegram in reply cables of two loop openings draw lower column - Google Patents

Abstract

The double-circuit breaking four-circuit cable leads down the tower. It includes a tower body and a ground wire support. A ground wire support is arranged on the top of the tower body, an upper wire cross arm is arranged under the ground wire support, a middle wire cross arm is arranged under the upper wire cross arm, and a lower Conductor cross-arm, under the lower conductor cross-arm, there is a cable guide auxiliary cross-arm, the ground wire support is perpendicular to the direction of the target line, the upper conductor cross-arm, middle conductor cross-arm, lower conductor cross-arm, cable guide auxiliary The cross arms are all in the shape of a cross, and each cross arm of the upper conductor cross arm, the middle conductor cross arm, the lower conductor cross arm, and the cable lead auxiliary cross arm forms an angle of 45° with the respective connected wires. The utility model samples one base pole tower to realize the disconnection of the double-circuit line and the cable lead-down, avoids the use of two base pole towers, reduces line investment, and minimizes the impact on the target line.

Description

Double-circuit breaking four-circuit cable down-leading tower

Technical field:

The utility model relates to the technical field of high-voltage transmission lines, in particular to a double-circuit breaking four-circuit cable lead-down tower.

Background technique:

In the existing transmission line project, the double-circuit double-side breaking cable down-conduction scheme usually adopts two-base double-circuit cable terminal rods (see Figure 1), and the suspension is realized by adding a layer of auxiliary cross-arms under the double-circuit tension rod lower cross-arms. Effective fixation of strings and arresters, and use jumpers to guide the wires to the connection of the hanging strings, arresters and cable heads, so as to realize the disconnection and down-leading of the lines.

The main disadvantages of the existing breaking schemes are:

It is necessary to build two base towers to complete the disconnection. The number of towers is large, the construction cost is high, and the tower base occupies a large area.

Utility model content:

The purpose of this utility model is to provide a double-circuit breaking four-circuit cable lead-down tower, which uses one base tower to realize the double-circuit line breaking and cable lead-down, avoiding the use of two base towers, reducing line investment, and maximizing Reduce the impact on the target line.

In order to solve the problems existing in the background technology, the utility model adopts the following technical solutions: it includes a tower body and a ground wire support, the top of the tower body is provided with a ground wire support, and an upper wire cross arm is arranged below the ground wire support, and the upper wire A middle conductor crossarm is arranged under the crossarm, a lower conductor crossarm is arranged under the middle conductor crossarm, a cable guide auxiliary crossarm is arranged under the lower conductor crossarm, the ground wire support is perpendicular to the direction of the target line, and the upper conductor The cross-arm, the middle conductor cross-arm, the lower conductor cross-arm, and the cable-lead auxiliary cross-arm are all cross-shaped, and each cross-arm of the upper conductor, the middle conductor cross-arm, the lower conductor cross-arm, and the cable-lead auxiliary cross-arm All form an angle of 45° with the wires connected respectively.

Compared with the conventional breaking scheme, the utility model has the following advantages:

(1) Compared with the conventional double-circuit breaking and down-leading scheme, the utility model double-circuit breaking and four-circuit cable down-leading tower reduces the number of new towers, reduces tower foundation occupation and civil coordination resistance, and reduces project investment.

(2) Compared with the conventional double-circuit breaking down-leading scheme, the utility model double-circuit breaking four-circuit cable down-leading tower significantly shortens the construction time of foundation pouring, pole tower resistance and setting-out, which can reduce the power failure of the breaking target line time to minimize the impact on the target line.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a wiring diagram of the utility model.

detailed description:

Referring to Figure 1-2, it includes a tower body 1 and a ground wire support 2, the top of the tower body 1 is provided with a ground wire support 2, an upper wire cross arm 3 is arranged below the ground wire support 2, and an upper wire cross arm 3 is arranged below There is a middle conductor cross arm 4, a lower conductor cross arm 5 is arranged under the middle conductor cross arm 4, a cable guide auxiliary cross arm 6 is arranged under the lower conductor cross arm 5, the ground wire support 2 is perpendicular to the direction of the target line, and the The upper conductor crossarm 3, the middle conductor crossarm 4, the lower conductor crossarm 5, and the cable guide auxiliary crossarm 6 are all cross-shaped, and the upper conductor crossarm 3, the middle conductor crossarm 4, the lower conductor crossarm 5, and the cable Each cross-arm of the auxiliary lower-lead cross-arm 6 is at an angle of 45° with the wires respectively connected.

Between the corresponding cross-arms of the upper conductor cross-arm and the middle conductor cross-arm, between the corresponding cross-arms of the middle conductor cross-arm and the lower conductor cross-arm, and between the corresponding cross-arms of the lower conductor cross-arm and the cable auxiliary auxiliary cross-arm Cable brackets, post insulators and cable heads are installed between the poles, and the utility model is set in the middle of the target line. The utility model breaks the target line on both sides, and connects the corresponding wires to the insulator strings of the corresponding cross arms. , and connected with the cable head on the lower cable bracket through the jumper wire, so as to meet the condition of electrical clearance, using a base tower to realize the breaking of the double-circuit line and the cable leading down.

Claims (1)

1. Double-circuit breaking and four-circuit cable lead down tower, which is characterized in that it includes a tower body and a ground wire support. A middle conductor crossarm is arranged under the crossarm, a lower conductor crossarm is arranged under the middle conductor crossarm, a cable guide auxiliary crossarm is arranged under the lower conductor crossarm, the ground wire support is perpendicular to the direction of the target line, and the upper conductor The cross-arm, the middle conductor cross-arm, the lower conductor cross-arm, and the cable-lead auxiliary cross-arm are all cross-shaped, and each cross-arm of the upper conductor, the middle conductor cross-arm, the lower conductor cross-arm, and the cable-lead auxiliary cross-arm All form an angle of 45° with the wires connected respectively.