CN208473424U

CN208473424U - A socket-type narrow base tower for overhead double-circuit line cable T connection

Info

Publication number: CN208473424U
Application number: CN201820926790.XU
Authority: CN
Inventors: 盛金马; 李涛; 朱晓峰; 吴晓鸣; 常江; 蔡冰冰; 韩承永; 崔宏; 王力; 罗正帮; 梁东跃; 黄皖平; 吴沙; 王龙; 张�浩
Original assignee: State Grid Anhui Electric Power Co Ltd; Economic and Technological Research Institute of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Anhui Electric Power Co Ltd; Economic and Technological Research Institute of State Grid Anhui Electric Power Co Ltd
Priority date: 2018-06-14
Filing date: 2018-06-14
Publication date: 2019-02-05
Anticipated expiration: 2028-06-14

Abstract

A kind of bearing platform type narrow base tower for making somebody a mere figurehead under double-circuit line cable T joint draws.It includes tower body, ground wire cross-arm, upper conducting wire cross-arm, middle conducting wire cross-arm, lower wire cross-arm, auxiliary cross-arm, V-type suspension string, support insulator, terminal cushion cap and cable termination；The ground wire cross-arm is located at tower body top；The upper conducting wire cross-arm is located at below ground wire cross-arm；The middle conducting wire cross-arm is located at below upper conducting wire cross-arm；The lower wire cross-arm is located at below middle conducting wire cross-arm；The auxiliary cross-arm is located at below lower wire cross-arm, and the auxiliary cross-arm has two layers；The terminal cushion cap is located at below auxiliary cross-arm, arranges both sides cross-arm from tower body horizontal path direction.The utility model realizes cable T joint using a Ji Ta, construction cost is lower, occupied area is smaller, it is smaller to adjacent shaft tower stressing influence, former line arrangement mode is not changed, typically without adjacent tower transformation is carried out, neighbouring tangent tower and anchor support is suitble to build, while cable termination is located at tower body platform and is more conducive to O&M and overhauls.

Description

A kind of bearing platform type narrow base tower for making somebody a mere figurehead under double-circuit line cable T joint draws

[technical field]

The utility model relates to ultra-high-tension power transmission line technical fields, more particularly to one kind is for making somebody a mere figurehead double-circuit line cable T Connect the bearing platform type narrow base tower under drawing.

[background technique]

With China's rapid economic development, electric power network and electric power facility reform strengthening gradually increase, by substation location Influence, transmission line of electricity usually require to build in densely populated power load district center or near, suffered from using aerial mode The influence of Path selection limits, however high voltage power cable overcomes to the particular/special requirement across parallel structures is handed over, and solves list The insurmountable problem of one overhead transmission line, is widely applied in work transmission line.

Existing ultra-high-tension power transmission line cable T joint draws one base anchor support of lower general use, under drawing for double loop cable T joint, It is generally necessary to have the characteristics that structure is simple, wire jumper is easy for installation under newly-built anchor support is drawn, but limited by its structure, deposit Main problem it is as follows:

1) compared with tangent tower scheme, steel are higher with basic cost, and economy is poor；

2) it selects tower position that should not easily form small isolated shelves adjacent to built anchor support, causes built anchor support two sides uneven Tension increases, and needs to rebuild beyond built anchor support design condition；

Therefore, according to the deficiency for drawing lower scheme using anchor support, consider to run safe and reliable with maintenance, it is necessary to propose A kind of aerial double-circuit line cable T joint draw under the narrow base tangent tower of bearing platform type.

[utility model content]

It is narrow for making somebody a mere figurehead the bearing platform type under double-circuit line cable T joint draws that the main purpose of the utility model is to provide a kind of Ji Ta, it using a Ji Ta realize cable T joint, construction cost is lower, and occupied area is smaller, to adjacent shaft tower stressing influence compared with It is small, do not change former line arrangement mode, typically without adjacent tower transformation is carried out, is suitble to neighbouring tangent tower and anchor support to build, simultaneously Cable termination, which is located at tower body platform, is more conducive to O&M maintenance.

To achieve the above object, the technical solution that the utility model is taken are as follows:

A kind of aerial double-circuit line cable T joint draw under the narrow base tangent tower of bearing platform type, it include tower body, ground wire cross-arm, on Conducting wire cross-arm, middle conducting wire cross-arm, lower wire cross-arm, auxiliary cross-arm, V-type suspension string, support insulator, terminal cushion cap and cable are whole End；

The ground wire cross-arm is located at tower body top, arranges both sides from tower body horizontal path direction；

The upper conducting wire cross-arm is located at below ground wire cross-arm, arranges both sides cross-arm from tower body horizontal path direction, every side is horizontal Load lower section is provided with V-type suspension string, is located at cross-arm side in parallel circuit direction and is provided with support insulator；

The middle conducting wire cross-arm is located at below upper conducting wire cross-arm, arranges both sides cross-arm, every side from tower body horizontal path direction It is provided with V-type suspension string below cross-arm, is located at cross-arm two sides in parallel circuit direction and is provided with support insulator；

The lower wire cross-arm is located at below middle conducting wire cross-arm, arranges both sides cross-arm, every side from tower body horizontal path direction It is provided with V-type suspension string below cross-arm, is located at cross-arm two sides in parallel circuit direction and is provided with support insulator；

The auxiliary cross-arm is located at below lower wire cross-arm, and the auxiliary cross-arm has two layers, and every layer from tower body vertical line Both sides cross-arm is arranged in road direction, is located at cross-arm ending two sides in parallel circuit direction and is provided with support insulator, in vertical line Road direction is located at cross-arm ending and is also equipped with support insulator；

The terminal cushion cap is located at below auxiliary cross-arm, arranges both sides cross-arm, every side cross-arm from tower body horizontal path direction It is provided with support insulator among two sides and ending, is respectively arranged with cable end three cross-arm support insulator adjacent positions End.

Further, the cable termination is made of end and A seating arrester.

Further, the support insulator on the terminal cushion cap and cable termination be vertically upward.

Compared with prior art, the utility model has the beneficial effects that phase conductor cross-arm, two sides phase conductor cross-arm are equal in 1) Using V-type suspension string, conducting wire windage yaw amount is effectively reduced, line corridor width is reduced；2) compared with strain insulator draws lower scheme, It avoids because the defects of steel consumption increases, adjacent tower is rebuild caused by changing anchor support into；3) cable is arranged at tower body to draw Lower terminal is convenient for construction and maintenance；4) A seating arrester and A seating cable termination can be used, be applicable in cable more extensive grade.

[Detailed description of the invention]

Fig. 1 is the utility model overall structure diagram；

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

[specific embodiment]

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

As shown in Figs. 1-2, a kind of bearing platform type narrow base tower for making somebody a mere figurehead under double-circuit line cable T joint draws, it includes tower body 1, ground wire cross-arm 2, upper conducting wire cross-arm 3, middle conducting wire cross-arm 4, lower wire cross-arm 5, auxiliary cross-arm 6, V-type suspension string 7, post insulator Son 8, terminal cushion cap 9 and cable termination 10.

The ground wire cross-arm 2 is located at 1 top of tower body, both sides is arranged from 1 horizontal path direction of tower body, for hanging ground wire.

The upper conducting wire cross-arm 3 is located at 2 lower section of ground wire cross-arm, and both sides are arranged in horizontal path direction, from 1 horizontal path of tower body Both sides cross-arm is arranged in direction, is hung upper phase conductor using V-type suspension string 7 below every side cross-arm, is located at using parallel circuit direction The support insulator 8 of cross-arm side, under phase conductor draws in realization.

The middle conducting wire cross-arm 4 is located at upper 3 lower section of conducting wire cross-arm, and both sides are arranged in horizontal path direction, from 1 vertical line of tower body Both sides cross-arm is arranged in road direction, using phase conductor in 7 suspension of every side cross-arm lower section V-type suspension string, utilizes parallel circuit direction position Support insulator 8 in cross-arm two sides, under mutually drawing with middle phase conductor in realization.

The lower wire cross-arm 5 is located at middle 4 lower section of conducting wire cross-arm, and both sides are arranged in horizontal path direction, from 1 vertical line of tower body Both sides cross-arm is arranged in road direction, is hung lower phase conductor using V-type suspension string 7 below every side cross-arm, is utilized parallel circuit direction position Support insulator 8 in cross-arm two sides, under mutually drawing with middle phase conductor in realization.

The auxiliary cross-arm 6 is located at 5 lower section of lower wire cross-arm, and the auxiliary cross-arm 6 has two layers, horizontal path direction arrangement Both sides, every layer is arranged both sides cross-arm from 1 horizontal path direction of tower body, and the pillar of cross-arm ending is located at using parallel circuit direction Insulator 8 is located at the support insulator 8 of cross-arm ending using horizontal path direction under mutually drawing with middle phase conductor in realization, realization Under lower phase conductor draws.

The terminal cushion cap 9 is located at 6 lower section of auxiliary cross-arm, arranges both sides cross-arm from 1 horizontal path direction of tower body, utilizes cross The support insulator 8 of two sides is carried on a shoulder pole, under mutually drawing with middle phase conductor in realization, using the support insulator 8 among cross-arm ending, is realized Under lower phase conductor draws, three cable terminations 10 are respectively set in 8 adjacent position of cross-arm support insulator, cable termination 10 is by cable Head is formed with A seating arrester, accesses underground at cable for the three-phase conducting wire switching under drawing support insulator 8.

Podium level, cable termination and arrester arrangement spacing etc. need to consider that personnel overhaul activity space, electrification point with The factors such as tower body safe distance.

Aerial double-circuit line cable T joint as shown in Figure 2 draw under the narrow base tangent tower wiring schematic diagram of bearing platform type, upper phase leads Line is strung from V-type pendency along positioned at upper conducting wire cross-arm 3, middle conducting wire cross-arm 4, lower wire cross-arm 5, auxiliary cross-arm 6, terminal cushion cap 9 Under the support insulator 8 at place draws, the cable termination 10 that is connected to using wire jumper at cable cushion cap 9；Middle phase conductor is strung from V-type pendency Under support insulator 8 of the edge at middle conducting wire cross-arm 4, lower wire cross-arm 5, auxiliary cross-arm 6, terminal cushion cap 9 draws, wire jumper is utilized The cable termination 10 being connected at cable cushion cap 9；Lower phase conductor is strung from V-type pendency along the support insulator 8 for being located at auxiliary cross-arm 6 Under drawing, the cable termination 10 that is connected to using wire jumper at cable cushion cap 9.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of platform narrow base tower that is used for overhead double-circuit line cable T to lead, it is characterized in that: it comprises tower body, ground wire cross-arm, upper wire cross-arm, middle wire cross-arm, lower wire cross-arm , Auxiliary cross arm, V-shaped suspension string, pillar insulator, terminal bearing platform and cable terminal;

The ground wire cross arm is located at the top of the tower body, and is arranged on both sides from the vertical line direction of the tower body;

The upper conductor cross-arm is located below the ground wire cross-arm, two cross-arms are arranged from the vertical line direction of the tower body, a V-shaped suspension string is arranged under each side of the cross-arm, and a pillar insulator is arranged on one side of the cross-arm in the parallel line direction;

The middle conductor cross-arm is located below the upper conductor cross-arm, two cross-arms are arranged in the vertical line direction of the tower body, and a V-shaped suspension string is arranged under each side of the cross-arm, and pillar insulators are arranged on both sides of the cross-arm in the parallel line direction;

The lower conductor cross-arm is located below the middle conductor cross-arm, two cross-arms are arranged in the vertical line direction of the tower body, and a V-shaped suspension string is arranged under each side of the cross-arm, and pillar insulators are arranged on both sides of the cross-arm in the parallel line direction;

The auxiliary cross-arm is located under the lower wire cross-arm, and the auxiliary cross-arm has two layers, each of which is arranged from the vertical line direction of the tower body. Insulators are also provided with post insulators at the slightly part of the cross arm in the vertical line direction;

The terminal support platform is located below the auxiliary cross-arm, and two cross-arms are arranged from the vertical line direction of the tower body. Strut insulators are arranged on both sides and in the middle of each side of the cross-arm, and are respectively arranged in the adjacent positions of the three cross-arm pillar insulators. There are cable terminations.

2 . The narrow base tower according to claim 1 , wherein the cable terminal is composed of a cable head and a seat-type arrester. 3 .

3 . The narrow base tower according to claim 1 , wherein the pillar insulators and the cable terminals on the terminal platform are all vertically upward. 4 .