CN201528058U - Graphite grounding pole for pole tower - Google Patents

Abstract

The utility model relates to a power line shaft tower auxiliary equipment, a shaft tower graphite earthing pole promptly. The method is characterized in that: the main body of the grounding electrode (1) is composed of a cylindrical graphite block (2) and a metal connecting plate (3). The utility model has the advantages that: the cylindrical graphite block is adopted, so that the surface area is large, the weight is light, the corrosion resistance is realized, the transportation is convenient, the excavated earth volume and the excavated area are obviously reduced, the steel wire grounding electrode has the advantages of simple structure, low manufacturing cost, reliable performance and the like, and various defects of the conventional steel wire grounding electrode are avoided.

Description

Tower graphite ground electrode

technical field

The utility model relates to an auxiliary equipment for a pole tower of a power line, that is, a graphite ground electrode for a pole tower.

Background technique

In order to prevent the power line tower from being damaged by lightning and the safety of construction, grounding electrodes must be installed under the tower. The current ground electrodes are all made of steel wires. Due to the high resistance of the steel wire itself and the small surface area per unit length, the part buried underground must have a sufficient length, resulting in a large amount of steel wire transportation and earthwork excavation, which will cause a certain burden on the construction. In addition, many construction sites are restricted by conditions and do not allow large-scale excavation, and the application of existing steel wire ground electrodes has encountered difficulties.

Contents of the invention

The purpose of the utility model is to provide a graphite grounding electrode with small transportation volume, earthwork excavation volume and excavation area, easy installation, good conductivity and low cost.

The above purpose is achieved by the following technical solutions: developing a graphite ground electrode for a pole tower, which is also a conductor component connected with the pole tower and buried underground. Its characteristics are: the main body of this grounding electrode is composed of a columnar graphite block and a metal connecting plate. During work, the columnar graphite block is buried in the ground and connected with the tower through a metal connecting plate.

The graphite block is cylindrical, two or more are a group, the connecting plate between the graphite blocks is a steel plate, the steel plate is connected with the graphite through bolts, and then connected with the tower.

The diameter of the cylindrical graphite block is 260-340mm, and the height is 450-520mm. Each group is composed of four graphite blocks. The distance between the graphite blocks is 800-1200mm. connected to the ground terminal.

The graphite block is in the shape of a barrel.

The beneficial effect of the utility model is that: due to the adoption of the cylindrical graphite block, the surface area is large, the weight is light, the transportation is convenient, the amount of excavated earthwork and the excavation area are significantly reduced, and it has the advantages of simple structure, low cost and reliable performance, avoiding The various disadvantages of the existing steel wire ground electrode are eliminated.

Description of drawings

Fig. 1 is the front view of first kind of embodiment;

Figure 2 is a top view of the first embodiment;

Fig. 3 is the schematic diagram of the working state of the first embodiment;

Fig. 4 is the front view of the second embodiment;

Fig. 5 is the front view of the third embodiment;

Fig. 6 is a front view of the fourth embodiment.

It can be seen in the figure: graphite ground electrode 1, graphite block 2, connecting plate 3, bolt 4, pole tower 5, ground terminal 6, ground 7.

Detailed ways

The first embodiment: as shown in Figures 1 and 2, the graphite ground electrode 1 of the tower is formed by connecting the graphite block 2 and the upper and lower connecting plates 3 through bolts 4 . Among them, the graphite block 2 is cylindrical, with a diameter of 260-340mm and a height of 450-520mm. Each group is composed of four graphite blocks 2, and the distance between the graphite blocks 2 is 800-1200mm. The connecting plate 3 between them is a steel plate with a width of 30-40mm. A screw hole is arranged on each graphite block 2, and a through hole is provided on the steel plate, which is fixed by a bolt 4.

FIG. 3 shows how this ground electrode 1 is used. That is, the graphite ground electrode 1 is buried below the ground 7 . One end is connected to the ground terminal 6 of the pole tower 5 .

The second embodiment: as shown in FIG. 4 , the graphite ground electrode 1 of the tower is formed by connecting four cylindrical graphite blocks 2 and connecting plates 3 on the upper and lower sides through bolts 4 . Different from the previous example, the steel plate here is disconnected, and there is a steel plate at the top and bottom between the two graphite blocks. This method is convenient for curved arrangement and can adapt to narrow places.

The third embodiment: as shown in Figure 5, the graphite block 2 of the graphite ground electrode 1 of the tower is in the shape of a barrel, which is characterized by a large surface area and light weight, which can save a large amount of graphite raw materials. Buckets can be bottomed or bottomless. Bottomed barrel-shaped graphite blocks2 are recommended. The opening of the bucket can be upward or downward, and all have a large contact area with the soil. Among them, the one with the mouth of the barrel facing up can store more water and enhance the conductivity.

The fourth embodiment: as shown in Figure 6, the connecting plates between the graphite blocks 2 are replaced by metal plates or metal wires, and connected by binding. This example illustrates that the graphite blocks 2 can be connected in various ways.

Claims (4)

1. a shaft tower graphite earth electrode is to join and buried conductor device with shaft tower, and it is characterized in that: the main body of this earth electrode (1) is that cylindricality graphite block (2) and metal connecting plate (3) constitute.

2. shaft tower graphite earth electrode according to claim 1, it is characterized in that: said graphite block (2) is cylindrical, and two or more are one group, and the connecting plate (3) between the graphite block (2) is a steel plate, steel plate links to each other with graphite block (2) by bolt (4), is connected with shaft tower (5) again.

3. shaft tower graphite earth electrode according to claim 2, it is characterized in that: the diameter 260-340mm of said cylindrical graphite block (2), high 450-520mm, form by four graphite blocks (2) for every group, graphite block (2) spacing 800-1200mm, connect graphite block (2) the wide 30-40mm of steel plate, steel plate links to each other with graphite block (2) by bolt (4), one links to each other with the earth terminal (6) of shaft tower (5).

4. shaft tower graphite earth electrode according to claim 1 is characterized in that: said graphite block (2) is round barrel shape.

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