CN203891557U - Compact insulation support - Google Patents

Abstract

The utility model belongs to the field of 10kV power distribution overhead lines, and in particular relates to a compact insulating bracket, which includes a cross arm fixed on a pole tower, and is characterized in that three overhead insulating brackets arranged horizontally are arranged on each cross arm on each side of the pole tower. Line hanging points, the three-phase insulated wires of each overhead line are respectively fixed on the three overhead insulated wire hanging points. The structure design of this compact insulating support is ingenious and reasonable. Through this support, the A, B, and C three-phase insulated wires of each overhead line can be arranged horizontally on the tower, thereby reducing the occupation of vertical space and lowering the height of the tower (especially steel pipes). The height of the pole) saves a lot of steel, reduces the cost of the project, and greatly improves the economy. At the same time, it becomes more feasible to drill 10kV multi-circuit overhead lines across 35kV, 110kV and higher voltage lines, and the safety distance becomes larger.

Description

Compact Insulation Stand

technical field

The utility model relates to a compact insulating support, which belongs to the field of 10kV power distribution overhead lines.

Background technique

In the current 10kV multi-circuit overhead lines, the hanging points of the insulated wires of the towers are all arranged in a triangle, with one phase on top and two phases on the bottom (as shown in Figure 2). Especially for 4-circuit and above overhead lines, under the conditions of satisfying the safety distance to the ground and the safety distance between phases, the height of the tower will be very high, resulting in a large number of steel materials, which greatly increases the cost of the project, and the economy is not high. In some special Lot also creates difficulties in crossing or drilling.

Utility model content

According to the deficiencies in the prior art above, the technical problem to be solved by the utility model is: to provide a compact insulating support with simplified structure, which can reduce the height of towers of multi-circuit overhead lines, save required steel materials, and reduce engineering cost.

The compact insulating bracket described in the utility model includes a cross arm fixed on the pole tower, and each cross arm on each side of the pole tower is provided with three overhead insulating wire hanging points arranged horizontally, and the three-phase insulated wire of each overhead line They are respectively fixed on the hanging points of three overhead insulated wires.

This compact insulating support sets horizontally arranged three overhead insulating wire hanging points on each cross arm on each side of the pole tower, so that it can meet the requirements of the 10kV regulations and specifications such as line-to-ground safety distance and phase-to-phase safety distance. Under the premise of a safe distance, the arrangement of the A, B, and C three-phase insulated wires of each overhead line on the tower is arranged horizontally. The material used in this compact insulating bracket is still traditional steel. By using this compact insulating bracket, the height of the pole tower (especially the steel pipe pole) can be significantly reduced, thereby saving a lot of steel and greatly reducing the project cost. The economy is better than the steel pipe. It is especially obvious in the overhead line project with a large number of poles. It successfully solves the problems of too high tower height and waste of steel for multiple overhead lines.

Compared with the prior art, the utility model has the following beneficial effects:

The structure design of this compact insulating support is ingenious and reasonable. Through this support, the A, B, and C three-phase insulated wires of each overhead line can be arranged horizontally on the tower, thereby reducing the occupation of vertical space and lowering the height of the tower (especially steel pipes). The height of the pole) saves a lot of steel, reduces the cost of the project, and greatly improves the economy. At the same time, it becomes more feasible to drill 10kV multi-circuit overhead lines across 35kV, 110kV and higher voltage lines, and the safety distance becomes larger.

Description of drawings

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

Fig. 2 is a structural schematic diagram of a tower in the prior art.

In the figure: 1. Hanging point of overhead insulated wire; 2. Cross arm; 3. Tower.

Detailed ways

Embodiments of the utility model are further described below in conjunction with the accompanying drawings:

As shown in Figures 1 and 2, the compact insulating support includes a cross arm 2 fixed on the pole tower 3, and each cross arm 2 on each side of the pole tower 3 is provided with three hanging points 1 for overhead insulating wires arranged horizontally. The three-phase insulated wires of the overhead lines are respectively fixed on the hanging points 1 of the three overhead insulated wires.

The compact insulating bracket sets three overhead insulated wire hanging points 1 arranged horizontally on each cross arm 2 on each side of the pole tower 3, so that it can meet the line-to-ground safety distance and phase-to-phase safety distance specified in the 10kV regulations. Under the premise of various safety distances, the arrangement of the A, B, and C three-phase insulated wires of each overhead line on the tower 3 is arranged horizontally. The material used in this compact insulating support is still traditional steel. By adopting this compact insulating support, the height of the pole tower 3 (especially the steel pipe pole) can be significantly reduced, thereby saving a lot of steel and greatly reducing the project cost. It is especially obvious in overhead line projects with a large number of steel pipe poles, and successfully solves the problems of too high towers 3 and waste of steel materials for multiple overhead lines at present.

For example, in the 4-circuit overhead line, after adopting the compact insulating support, the vertical space occupied by the 4-circuit overhead insulated wire is only half of the current triangular arrangement, so the pole tower 3 (especially the height of the steel pipe pole) can be Significantly lower. The benefits of height reduction are: first, the economy is greatly improved, that is, longer overhead line projects can be constructed or maintained with the same funds; The more feasible, the safe distance becomes larger. The use of compact insulating supports can even make it feasible to erect multiple circuit lines in some locations where it is currently impossible. If the overhead line exceeds 4 times, the effect will be more obvious.

Claims (1)

1. a compact insulating support, comprise the cross-arm (2) being fixed on shaft tower (3), it is characterized in that: horizontal three aerial insulated wire hanging points (1) are set on every cross-arm (2) of the every side of shaft tower, and the three phase isolated line of every time overhead wire is separately fixed on three aerial insulated wire hanging points (1).