CN214254768U - Graphite grounding downlead device for power transmission line - Google Patents
Graphite grounding downlead device for power transmission line Download PDFInfo
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- CN214254768U CN214254768U CN202120475894.5U CN202120475894U CN214254768U CN 214254768 U CN214254768 U CN 214254768U CN 202120475894 U CN202120475894 U CN 202120475894U CN 214254768 U CN214254768 U CN 214254768U
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- downlead
- transmission line
- graphite
- connecting piece
- iron tower
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Abstract
The utility model provides a graphite ground connection downlead device for transmission line, includes iron tower connector, metal downlead, downlead connecting piece, the horizontal graphite grounding body that connects gradually, the both ends of metal downlead respectively with iron tower connector, downlead connecting piece welded connection, the length of splice is more than or equal to 100 mm, the downlead connecting piece is buried underground in soil, its lower extreme and horizontal graphite grounding body are crimping connection, the length of crimp splice is more than or equal to 180 mm. Utilize the utility model discloses transmission line graphite ground connection downlead device of construction has good anti external damage ability and corrosion resisting property, can effectively improve transmission line earthing device downlead operational reliability, improves transmission line power supply safety and stability nature.
Description
Technical Field
The utility model relates to a power equipment protects technical field, especially relates to a graphite ground connection downlead device for transmission line.
Background
The grounding device is an important protection device of the power transmission line and consists of a grounding down conductor and a grounding body. When thunderstorm weather occurs, lightning current firstly flows through the tower and then is discharged to the ground through the grounding device connected with the tower. Therefore, the grounding device provides a discharge channel for the lightning to flow to the ground, so that the line tripping accident caused by the lightning stroke is avoided, and the reliability of the grounding device is the key work for preventing the lightning stroke tripping event and protecting the safe operation of the power transmission line.
In the prior art, high-strength graphite downleads are adopted for grounding downleads of the graphite grounding device of the power transmission line, the downleads are flexible and difficult to be tightly attached to tower legs and foundations, the plasticity performance is poor, the process is not attractive, on the other hand, the high-strength graphite downleads lack of protection and are easy to damage by external force, the power transmission line trips due to the fact that the tower is struck by lightning after the downlead fails, and the power supply reliability is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art not enough, provide a simple structure, connect firm, anti external damage, the strong graphite ground connection downlead device that is used for transmission line of anticorrosive ability.
The utility model provides a technical scheme that its technical problem adopted is, a graphite ground connection downlead device for transmission line, including iron tower connector, metal downlead, downlead connecting piece, the horizontal graphite grounding body that connects gradually, the both ends of metal downlead respectively with iron tower connector, downlead connecting piece welded connection, the length of welding department is more than or equal to 100 mm, the downlead connecting piece is buried underground in soil, its lower extreme is connected for the crimping with the horizontal graphite grounding body, the length of crimping department is more than or equal to 180 mm.
Further, the iron tower connector is made of a galvanized copper-coated steel plate.
Furthermore, the material of the metal down lead is phi 10 tin-plated copper-coated steel.
Furthermore, the horizontal graphite grounding body is made of flexible graphite.
Utilize the utility model discloses transmission line graphite ground connection downlead device of construction has good anti external damage ability and corrosion resisting property, can effectively improve transmission line earthing device downlead operational reliability, improves transmission line power supply safety and stability nature.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the present embodiment includes an iron tower connector 1, a metal down conductor 2, a down conductor connector 3, and a horizontal graphite grounding body 4, which are connected in sequence.
The iron tower connector 1 is electrically and reliably connected with tower legs of an iron tower through bolts, and is connected with the metal down lead 2 in a welding mode, and the welding length is 120 mm. Wherein, the material of iron tower connector 1 is galvanized copper and covers the steel sheet, and the material of bolt is stainless steel.
The metal down conductor 2 is tin-plated copper-clad steel with the diameter phi 10, has excellent corrosion resistance and electrical performance, can effectively resist external force damage, can effectively resist the surface of the iron tower foundation when being down led along the iron tower foundation, and has attractive process.
The down lead connecting piece 3 is buried in soil, the upper end of the down lead connecting piece is connected with the metal down lead 2 through welding, and the welding length is 120 mm. The lower end is connected with the horizontal graphite grounding body 4 through bolt crimping, and the crimping length is 200 mm.
The utility model discloses the utilization has iron tower connector 1 that corrosion resisting property is good, metal downlead 2, downlead connecting piece 3, horizontal graphite grounding body 4 and realizes that ground connection downlead is good corrosion resisting property, utilizes metal downlead 2's anti external force destruction ability to improve ground connection downlead 2's operational reliability.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present invention, provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (4)
1. The utility model provides a graphite ground connection downlead device for transmission line which characterized in that: the iron tower grounding device comprises an iron tower connector, a metal down lead, a down lead connecting piece and a horizontal graphite grounding body which are sequentially connected, wherein two ends of the metal down lead are respectively welded with the iron tower connector and the down lead connecting piece, the length of a welding position is larger than or equal to 100 mm, the down lead connecting piece is buried in soil in an embedded mode, the lower end of the down lead is connected with the horizontal graphite grounding body in a compression joint mode, and the length of the compression joint position is larger than or equal to 180 mm.
2. The graphite grounding downlead device for the power transmission line according to claim 1, characterized in that: the iron tower connector is made of a galvanized copper-coated steel plate.
3. The graphite grounding downlead arrangement for an electric transmission line according to claim 1 or 2, characterized in that: the metal down lead is made of phi 10 tin-plated copper-coated steel.
4. The graphite grounding downlead arrangement for an electric transmission line according to claim 1 or 2, characterized in that: the horizontal graphite grounding body is made of flexible graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475894.5U CN214254768U (en) | 2021-03-05 | 2021-03-05 | Graphite grounding downlead device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475894.5U CN214254768U (en) | 2021-03-05 | 2021-03-05 | Graphite grounding downlead device for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214254768U true CN214254768U (en) | 2021-09-21 |
Family
ID=77727469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120475894.5U Active CN214254768U (en) | 2021-03-05 | 2021-03-05 | Graphite grounding downlead device for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214254768U (en) |
-
2021
- 2021-03-05 CN CN202120475894.5U patent/CN214254768U/en active Active
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