CN110714650A - A double-rod type four-circuit cable terminal rod - Google Patents

Abstract

The invention relates to a double-rod type four-circuit cable terminal rod, comprising a first main rod and a second main rod, a horizontal connecting rod is arranged between the first main rod and the second main rod, and the horizontal connecting rod is The two ends are respectively fixedly connected to the first main rod and the second main rod; the first main rod is sequentially provided with a ground wire cross-arm, an upper wire cross-arm, a middle wire cross-arm and a lower wire cross-arm from top to bottom, The ground wire cross-arm, the upper wire cross-arm, the middle wire cross-arm and the lower wire cross-arm are parallel to each other, and are arranged vertically with the first main rod; the second main rod is provided with a 1 The same and one-to-one corresponding ground wire crossarm, upper wire crossarm, middle wire crossarm and lower wire crossarm. The invention provides a double-pole-type four-circuit cable terminal pole with fewer poles and towers to be constructed, smaller floor area and lower construction cost.

Description

A double-rod type four-circuit cable terminal rod

technical field

The invention relates to the technical field of high-voltage transmission lines, in particular to a double-pole type four-circuit cable terminal pole.

Background technique

In the existing high-voltage transmission line project, the double-circuit and double-side disconnection cable lead-down scheme usually adopts two-base double-circuit cable terminal poles. The disadvantage of this scheme is that it needs to build two-base cable terminal poles to complete the breaking, the number of poles and towers is large, the floor space is large, and the construction cost is high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects existing in the prior art, and to provide a double-pole type four-circuit cable terminal pole with fewer poles and towers, smaller floor space and lower construction cost.

The technical solution adopted by the present invention to solve the technical problem is as follows: a double-rod type four-circuit cable terminal rod, which includes a first main rod and a second main rod, and between the first main rod and the second main rod is provided Horizontal connecting rod, both ends of the horizontal connecting rod are fixedly connected to the first main rod and the second main rod respectively; the first main rod is sequentially provided with a ground wire cross-arm, an upper wire cross-arm, The middle wire cross-arm and the lower wire cross-arm, the ground wire cross-arm, the upper wire cross-arm, the middle wire cross-arm and the lower wire cross-arm are parallel to each other, and are arranged vertically with the first main pole; the second The main pole is provided with a ground wire cross-arm, an upper wire cross-arm, a middle wire cross-arm and a lower wire cross-arm which are the same as the first main pole and correspond one-to-one.

According to another embodiment of the present invention, it further includes that the number of the horizontal connecting rods is four, and the four horizontal connecting rods are respectively connected with the ground wire cross-arm, the upper wire cross-arm, the middle wire cross-arm and the lower wire. The plane where the cross arm is located is vertical and at the same height.

According to another embodiment of the present invention, it further includes that insulator strings are installed at the ends of the upper conductor cross-arms, first column insulator strings are installed at the ends of the middle conductor cross-arms, and the lower conductor cross-arm ends are installed with insulator strings. There is a second strut insulator string.

Beneficial effects of the present invention: the present invention solves the defects existing in the background technology, adopts steel pipe rods of special structural type, reduces the number of newly-built cable terminal rods, and through the rational arrangement of the overall structure, the force transmission is simple, and the weight of the tower is greatly reduced; Change the stress of the upper structure on the foundation, greatly reduce the size and floor area of the foundation, and improve the land utilization rate. At the same time, the construction time is shortened in tower processing and foundation pouring, and the power outage time for disconnecting lines is shortened, and the impact of engineering construction on the surrounding environment is reduced.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

1 is a schematic structural diagram of a preferred embodiment of the present invention;

Fig. 2 is the drawing down of the terminal rod of the present invention.

Detailed ways

As shown in FIG. 1, a double-rod type four-circuit cable terminal rod includes a first main rod 1 and a second main rod 2, and a horizontal connecting rod is arranged between the first main rod 1 and the second main rod 2 3. Both ends of the horizontal link 3 are fixedly connected to the first main rod 1 and the second main rod 2 respectively. The number of the horizontal connecting rods 3 is four, and the four horizontal connecting rods are respectively perpendicular to the planes where the ground wire cross-arm 4, the upper wire cross-arm 5, the middle wire cross-arm 6 and the lower wire cross-arm 7 are located, and at the same height.

The first main pole 1 is sequentially provided with a ground wire cross-arm 4, an upper wire cross-arm 5, a middle wire cross-arm 6 and a lower wire cross-arm 7 from top to bottom, the ground wire cross-arm 4, the upper wire cross-arm 5, The middle wire cross-arm 6 and the lower wire cross-arm 7 are parallel to each other, and are arranged vertically with the first main rod 1; the second main rod 2 is provided with the same and one-to-one corresponding ground with the first main rod 1. Wire cross arm 4, upper wire cross arm 5, middle wire cross arm 6 and lower wire cross arm 7.

As shown in FIG. 2 , an insulator string 501 is installed at the end of the upper conductor cross-arm 5, a first pillar insulator string 601 is installed at the end of the middle conductor cross-arm 6, and a second pillar insulator string 701 is installed at the end of the lower conductor cross-arm 7 . The present invention is arranged directly below the line to be disconnected, the target line is disconnected on both sides, the conductors of each phase are connected to the insulator string through jumpers, and then connected to the cable platform below, and the electrical clearance is satisfied, using One-base double-pole type four-circuit cable terminal pole realizes double-circuit breaking on both sides and cable lead-off.

It should be understood that the specific embodiments described above are only used to explain the present invention, but not to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims (3)

1. A double-rod type four-circuit cable terminal rod, characterized in that it comprises a first main rod and a second main rod, a horizontal connecting rod is arranged between the first main rod and the second main rod, and the horizontal Both ends of the connecting rod are fixedly connected to the first main rod and the second main rod respectively; the first main rod is sequentially provided with a ground wire cross-arm, an upper wire cross-arm, a middle wire cross-arm and a lower wire from top to bottom The cross arm, the ground wire cross arm, the upper wire cross arm, the middle wire cross arm and the lower wire cross arm are parallel to each other, and all are arranged vertically with the first main pole; A ground wire cross-arm, an upper wire cross-arm, a middle wire cross-arm and a lower wire cross-arm with the same main pole and one-to-one correspondence. 2 . The double-bar type four-circuit cable terminal rod according to claim 1 , wherein the number of the horizontal connecting rods is four, and the four horizontal connecting rods are cross-armed with the ground wire respectively. 3 . , The plane where the upper wire cross-arm, the middle wire cross-arm and the lower wire cross-arm are located is vertical and at the same height. 3. A double-pole type four-circuit cable terminal rod according to claim 1, characterized in that: an insulator string is installed at the end of the upper wire cross-arm, and a first cross-arm is installed at the end of the middle wire cross-arm. A strut insulator string is provided, and a second strut insulator string is installed at the end of the lower wire cross arm.

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