CN217360393U - Insulation down-lead grounding device of OPGW optical cable - Google Patents
Insulation down-lead grounding device of OPGW optical cable Download PDFInfo
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- CN217360393U CN217360393U CN202220594983.6U CN202220594983U CN217360393U CN 217360393 U CN217360393 U CN 217360393U CN 202220594983 U CN202220594983 U CN 202220594983U CN 217360393 U CN217360393 U CN 217360393U
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Abstract
The utility model belongs to the technical field of the power communication technique and specifically relates to an insulating earthing device that draws down of OPGW optical cable. The cable insulation device comprises an insulation residual cable tray, an in-station framework and a needle type composite insulator, wherein the insulation residual cable tray is fixed on the in-station framework through a first electric power engineering metal hoop; the pin type composite insulator is fixed on the station inner frame through a second electric power engineering metal hoop and is positioned at the upper part of the insulation residual cable tray; the lower part of the station inner framework is provided with a cable guiding protective pipe, and the top of the cable guiding protective pipe is provided with a special plugging plug; four parallel groove clamps are symmetrically arranged around the edge residual cable tray. The utility model relates to a reserve the reliable insulating, long utility life's of cable OPGW optical cable insulation and draw ground device down.
Description
Technical Field
The utility model belongs to the technical field of the power communication technique and specifically relates to an insulating earthing device that draws down of OPGW optical cable.
Background
Because the construction standard of the OPGW optical cable is relatively lagged, the grounding installation of the OPGW optical cable in a station is not standard, potential safety hazards such as lightning stroke or short-circuit current exist, and the safe operation of a power grid system is directly influenced. According to the related regulation of 'OPGW connection typical construction method' in 'State grid corporation Power Transmission and transformation project Standard Process (IV)' published by State grid corporation capital construction department. According to the latest requirement that the OPGW optical cable is required to be grounded at three points according to the 'installation process specification of the communication optical cable of the power system' by the State grid company. The OPGW optical cable three-point grounding plays a role of providing a discharge channel for lightning stroke current and short circuit current, improves the risk resistance of the optical cable, eliminates hidden dangers of a communication system, and is an important measure for practically ensuring safe and stable operation of the power communication system.
At present, the problem of the existing OPGW grounding is as follows:
1. the insulation of the down-leading cable is unreliable, and the rubber clamp and the rubber pad are commonly adopted by the aged insulating rubber down-leading cable, so that the aging is easy to cause the cable releasing problem.
2. The optical cable is rubbed and touched at the framework platform, the flange flat plate is burnt by discharging, and the wind swing rubs and touches to cause the broken strand of the burnt cable. It should be ensured that the insulation spacing is not less than 20 mm.
3. The unreliable residual cable with reserved cable insulation in the traditional galvanized residual cable rack adopts a stainless steel belt as a fastener. The mechanical strength is small, the cable is easy to break to cause cable release, and the induced voltage discharge strand breakage and turn-to-turn electrical erosion strand breakage are easy to occur between the cable fork and the OPGW.
4. The traditional guiding cable protective pipe is unreliable in use, and the existing OPGW station-entering guiding cable protective pipe is mostly plugged by adopting fireproof mud. The fireproof mud is easy to crack and fall off when used in outdoor environment, rainwater is easy to enter the protective pipe due to sealing failure, and water in the protective pipe is frozen particularly in winter, so that the optical fiber is stressed to cause fiber breaking failure.
5. The grounding resistance detection operation is difficult, and the optical cable with high operation safety risk is arranged at the top end of the framework; the lowest end fixing point of the optical cable (in front of the rest cables); cable ends (splice closure); and the electrical connection with the framework is reliably carried out through matched special grounding wires respectively. Grounding is reliable, but does not take into account measurement of ground resistance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an insulating earthing device that draws down of OPGW optical cable to solve the problem that points out among the prior art.
In order to realize the purpose, the technical scheme adopted by the utility model is as follows:
an insulation down-lead grounding device of an OPGW optical cable comprises an insulation residual cable tray, an in-station framework and a needle type composite insulator, wherein the insulation residual cable tray 1 is fixed on the in-station framework through a first electric power engineering metal hoop; the pin type composite insulator is fixed on the station inner frame through a second electric power engineering metal hoop and is positioned at the upper part of the insulation residual cable tray; the lower part of the station inner framework is provided with a cable guiding protective pipe, and the top of the cable guiding protective pipe is provided with a special plugging plug; four parallel groove clamps are symmetrically arranged around the edge residual cable tray.
Furthermore, a joint box is fixed on the upper part of the edge cable tray, and a high-voltage isolating switch is arranged on a wiring end of the joint box.
Furthermore, one side of the insulating residual cable disc, which is far away from the parallel groove clamp, is provided with a cable connecting nose.
Furthermore, the parallel groove clamp is connected with the insulating residual cable disc through bolts, two bolt holes are formed in the end portion of the parallel groove clamp and are arranged in an up-down symmetrical mode, and insulating cable bolts are arranged in the bolt holes.
Preferably, the upper end of the insulated cable bolt is provided with a thread, the insulated cable bolt is provided with an insulated thread head, and the insulated thread head is meshed with the thread arranged at the upper end of the insulated cable bolt.
Furthermore, the special plugging plug is made of silicon rubber, and the cable guide protective pipe is plugged at the ambient use temperature of-60 to +250 ℃.
To sum up, owing to adopted above-mentioned technical scheme, utility model's beneficial technological effect is:
four parallel groove clamps are symmetrically arranged around a residual cable tray of an insulation grounding device of an OPGW optical cable, so that the OPGW is ensured to pass through a flange plate type safe insulation space not less than 200 m.
The optical cable is led down and an insulation hoop matched with a down lead clamp of the composite pin insulator replaces a traditional fixing clamp which is easy to age and break and provided with an insulation rubber pad, so that the service life and the utilization rate of the OPGW optical cable down leading device are improved.
An insulation down-lead grounding device of an OPGW optical cable adopts a special plugging plug to plug and plug a cable-leading protective pipe reliably and has long service life.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a right side schematic view of fig. 1 according to the present invention.
Fig. 3 is a left side schematic view of fig. 1 according to the present invention.
Fig. 4 is a schematic perspective view of the present invention.
In the figure: the cable-pulling device comprises an insulation residual cable tray 1, an in-station framework 2, a cable-pulling protective pipe 3, a special plugging plug 4, a parallel groove clamp 5, a connector box 6, a wiring nose 7, a first electric power engineering metal hoop 8, an insulation cable bolt 9, an insulation threaded head 10, a needle type composite insulator 11 and a second electric power engineering metal hoop 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
In the embodiment, the insulation down-lead grounding device of the OPGW optical cable comprises an insulation residual cable tray 1, a station internal framework 2 and a needle type composite insulator 11, wherein the insulation residual cable tray 1 is fixed on the station internal framework 2 through a first electric power engineering metal hoop 8; the needle type composite insulator 11 is fixed on the station inner frame 2 through a second electric power engineering metal hoop 12, and the needle type composite insulator 11 is positioned at the upper part of the insulation residual cable tray 1; the lower part of the station inner framework 2 is provided with a cable-leading protective pipe 3, and the top of the cable-leading protective pipe 3 is provided with a special plugging plug 4; four parallel groove clamps 5 are symmetrically arranged around the residual cable tray 1, and the four parallel groove clamps 5 are distributed in four directions of the insulating residual cable tray 1, so that reliable insulation of reserved cables is really realized, and the problem of strand breakage is thoroughly solved; a joint box 6 is fixed on the upper part of the edge cable tray 1, and a high-voltage isolating switch is arranged at a wiring end of the joint box 6; and a wiring nose 7 is arranged on one side of the insulating residual cable disc 1, which is far away from the parallel groove clamp 5.
Example 2
In the embodiment, the parallel groove clamp 5 is connected with the insulating residual cable tray 1 through bolts, two bolt holes are arranged at the end part of the parallel groove clamp 5, and the bolt holes are arranged in an up-down symmetrical mode and are internally provided with insulating cable bolts 9; the upper end of the insulating cable bolt 9 is provided with threads, the insulating cable bolt 9 is provided with an insulating thread head 10, and the insulating thread head 10 is meshed with the threads arranged at the upper end of the insulating cable bolt 9.
Example 3
In the embodiment, the special plugging plug 4 is made of silicon rubber, the cable guiding protective pipe 3 is plugged at the ambient use temperature of-60 degrees to +250 degrees, and the special plugging plug 4 is reliable in plugging and long in service life.
The above description is a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. An insulation of OPGW optical cable draws ground device down which characterized in that: the cable insulation device comprises an insulation cable redundant disc (1), an in-station framework (2) and a needle type composite insulator (11), wherein the insulation cable redundant disc (1) is fixed on the in-station framework (2) through a first electric power engineering metal hoop (8); the needle type composite insulator (11) is fixed on the station inner frame (2) through a second electric power engineering metal hoop (12), and the needle type composite insulator (11) is positioned on the upper part of the insulation residual cable tray (1); the lower part of the station inner framework (2) is provided with a cable guiding protective pipe (3), and the top of the cable guiding protective pipe (3) is provided with a special plugging plug (4); four parallel groove clamps (5) are symmetrically arranged around the edge residual cable tray (1).
2. An OPGW cable insulation down-grounding device as claimed in claim 1, wherein: a joint box (6) is fixed on the upper part of the edge cable tray (1), and a high-voltage isolating switch is arranged at the wiring end of the joint box (6).
3. An OPGW cable insulation grounding device as claimed in claim 1, characterized in that: and a wiring nose (7) is arranged on one side of the insulating residual cable disc (1) far away from the parallel groove clamp (5).
4. An OPGW cable insulation grounding device as claimed in claim 1, characterized in that: the parallel groove clamp (5) is connected with the insulating residual cable tray (1) through bolts, two bolt holes are formed in the end portion of the parallel groove clamp (5) in an up-and-down symmetrical mode, and insulating cable bolts (9) are arranged in the bolt holes.
5. An OPGW cable insulation grounding device as claimed in claim 4, characterized in that: the upper end of the insulated cable bolt (9) is provided with threads, the insulated cable bolt (9) is provided with an insulated threaded head (10), and the insulated threaded head (10) is meshed with the threads arranged at the upper end of the insulated cable bolt (9).
6. An OPGW cable insulation grounding device as claimed in claim 1, characterized in that: the special plugging plug (4) is made of silicon rubber, and plugs the cable guiding protective pipe (3) at the ambient use temperature of-60 degrees to +250 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220594983.6U CN217360393U (en) | 2022-03-18 | 2022-03-18 | Insulation down-lead grounding device of OPGW optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220594983.6U CN217360393U (en) | 2022-03-18 | 2022-03-18 | Insulation down-lead grounding device of OPGW optical cable |
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| Publication Number | Publication Date |
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| CN217360393U true CN217360393U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220594983.6U Active CN217360393U (en) | 2022-03-18 | 2022-03-18 | Insulation down-lead grounding device of OPGW optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308867A (en) * | 2022-10-09 | 2022-11-08 | 长飞光纤光缆股份有限公司 | Leading-down piece of OPGW and method for leading-down insulated optical unit by adopting leading-down piece |
-
2022
- 2022-03-18 CN CN202220594983.6U patent/CN217360393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308867A (en) * | 2022-10-09 | 2022-11-08 | 长飞光纤光缆股份有限公司 | Leading-down piece of OPGW and method for leading-down insulated optical unit by adopting leading-down piece |
| CN115308867B (en) * | 2022-10-09 | 2023-01-06 | 长飞光纤光缆股份有限公司 | Leading-down piece of OPGW and method for leading-down insulated optical unit by adopting leading-down piece |
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