CN113517656A - Backup protection safety device for live overhaul of single strain insulator string of high-voltage transmission line and use method of backup protection safety device - Google Patents
Backup protection safety device for live overhaul of single strain insulator string of high-voltage transmission line and use method of backup protection safety device Download PDFInfo
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- CN113517656A CN113517656A CN202110909052.0A CN202110909052A CN113517656A CN 113517656 A CN113517656 A CN 113517656A CN 202110909052 A CN202110909052 A CN 202110909052A CN 113517656 A CN113517656 A CN 113517656A
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- tower
- tension
- insulating
- safety device
- backup protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
A backup protection safety device for live overhaul of a single strain insulator string of a high-voltage transmission line comprises an insulation tension-resistant part, a lead tension part and a tower tension part; the wire drawing part is used for drawing and connecting a transmission wire, the tower drawing part is used for drawing and connecting a tower, and two ends of the insulation tension-resistant part are respectively in drawing connection with the wire drawing part and the tower drawing part; the insulating tensile member comprises an insulating isolation part and a length adjuster. The using method comprises the steps of connecting the transmission conductor by using the conductor traction piece, connecting the tower by using the tower traction piece, and adjusting the length of the length adjuster to enable the insulating tension-resistant piece to pull the transmission conductor and the tower. When the single strain insulator string of the high-voltage transmission line is replaced in an electrified way, the slipping of the transmission conductor can be avoided, and backup protection is formed.
Description
Technical Field
The invention relates to a power transmission overhaul safety device, in particular to a backup protection safety device for live overhaul of a single strain insulator string of a high-voltage power transmission line and a using method thereof.
Background
The strain insulator string is used for drawing and connecting a tower fixing point and a transmission lead. In the use process, under the influence of external force, one or more insulators in the tension insulator string may be damaged, and therefore, the damaged insulators in the tension insulator string need to be replaced. At the moment, the traction force between the tension insulator string and the tower fixing point and the transmission conductor is invalid, and if the transmission conductor slips and displaces, the transmission conductor can straighten the drainage wire, so that personal safety damage is caused to operators. Therefore, a backup protection safety device for live overhaul of a single strain insulator string of a high-voltage transmission line needs to be designed so as to provide a backup protection measure when a lead slips when the strain insulator string is replaced in a live state.
Disclosure of Invention
The invention aims to provide a backup protection safety device for live-line maintenance of a single strain insulator string of a high-voltage transmission line and a use method thereof, so as to provide a backup protection measure when a lead slips when the strain insulator string is replaced in a live-line mode.
In the present invention, the pulling link finger is subjected to a pulling force in the direction of the pulling force.
The technical scheme of the invention is as follows:
a backup protection safety device for live overhaul of a single strain insulator string of a high-voltage transmission line comprises an insulation tension-resistant part, a lead tension part and a tower tension part; the wire drawing part is used for drawing and connecting a transmission wire, the tower drawing part is used for drawing and connecting a tower, and two ends of the insulation tension-resistant part are respectively in drawing connection with the wire drawing part and the tower drawing part; the insulating tensile member comprises an insulating isolation part and a length adjuster.
Preferably, the insulating isolation part is an insulating pull plate, and two ends of the insulating pull plate are respectively provided with at least one connecting hole.
Preferably, the length adjuster is a lead screw.
Preferably, the insulation tension-resistant piece is connected with the wire drawing piece rotating pair, the insulation tension-resistant piece is connected with the tower drawing piece rotating pair, and a rotating shaft of the insulation tension-resistant piece and the wire drawing piece is perpendicular to a rotating shaft of the insulation tension-resistant piece and the tower drawing piece.
The use method of the backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line comprises the following steps:
and connecting the transmission conductor by using the conductor traction piece, connecting the tower traction piece by using the tower traction piece, and adjusting the length of the length adjuster to ensure that the insulation tension-resistant piece pulls the transmission conductor and the tower.
The invention has the beneficial effects that:
1. the insulating isolation part is used for insulating and isolating the transmission conductor and the tower, and the length adjuster is used for adjusting the distance between the conductor traction piece and the tower traction piece so as to enable the insulating traction piece to be in traction connection with the transmission conductor and the tower and avoid the transmission conductor from slipping.
2. Insulating resistant drawing piece with the axis of rotation perpendicular to of wire tractive piece insulating resistant drawing piece with during the axis of rotation of shaft tower tractive piece, wire tractive piece and shaft tower tractive piece form universal connection, are convenient for install the electrified back-up protection safety device that overhauls of high tension transmission line list string strain insulator string.
3. When the insulating tension-resistant piece pulls the transmission conductor and the tower, a backup protective measure can be provided when the conductor slips when a single strain insulator string of the transmission line is replaced in an electrified way, and personal injury to operating personnel caused by the fact that the drainage wire is stretched straightly is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a backup protection safety device for live-line overhaul of a single strain insulator string of a high-voltage transmission line.
The reference numbers indicate, 1-wire pulling, 21-insulation spacer, 22-length adjuster, 3-tower pulling.
Detailed Description
The present invention is described below in terms of embodiments in conjunction with the accompanying drawings to assist those skilled in the art in understanding and implementing the present invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
Example 1: a back-up protection safety device for live overhaul of a single strain insulator string of a high-voltage transmission line comprises an insulation tension-resistant part, a lead tension-resistant part 1 and a pole tower tension-resistant part 3.
The lead drawing piece 1 is used for drawing and connecting a transmission lead and can adopt a wire collector.
The tower traction piece 3 is used for traction connection of a tower and can be fixed by adopting angle steel.
Two ends of the insulating tension-resistant part are respectively connected with the lead tension part 1 and the pole tower tension part 3 in a traction manner. The insulating tension member includes an insulating spacer 21 and a length adjuster 22. In this embodiment, the insulating isolation portion 21 is an insulating pulling plate, and two ends of the insulating pulling plate are respectively provided with four connecting holes. In this embodiment, the length adjuster is a lead screw, and the length of the insulating tension-resistant member can be adjusted by adjusting the length of the lead screw, so that the distance between the conductor tension-resistant member 1 and the tower tension-resistant member 3 is adjusted, and the insulating tension-resistant member pulls the transmission conductor and the tower. The insulation isolation part 21 is used for insulation isolation of the transmission conductor and the tower.
In this embodiment, the insulating tension-resistant member is connected with the wire pulling member rotating pair, the insulating tension-resistant member is connected with the tower pulling member rotating pair, and a rotating shaft of the insulating tension-resistant member and the wire pulling member is perpendicular to a rotating shaft of the insulating tension-resistant member and the tower pulling member.
The use method of the backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line comprises the following steps:
the lead traction piece is used for connecting the transmission lead, the tower traction piece is used for connecting the tower, the length of the length regulator is shortened, and the insulating tension-resistant piece is used for drawing the transmission lead and the tower;
maintaining the strain insulator string;
after the strain insulator string is maintained, the length of the length regulator is extended, so that the strain insulator string pulls the transmission conductor and the tower, the conductor pulling piece and the transmission conductor are separated, and the tower pulling piece and the tower are separated.
The invention is described in detail above with reference to the figures and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts are described herein as far as possible by way of illustration. Without departing from the inventive concept of the present invention and without any creative work, a person skilled in the art should, in all of the embodiments, make optional combinations of technical features and experimental changes of specific parameters, or make a routine replacement of the disclosed technical means by using the prior art in the technical field to form specific embodiments, which belong to the content implicitly disclosed by the present invention.
Claims (5)
1. A backup protection safety device for live overhaul of a single strain insulator string of a high-voltage transmission line is characterized by comprising an insulation tension-resistant part, a lead tension part and a tower tension part; the wire drawing part is used for drawing and connecting a transmission wire, the tower drawing part is used for drawing and connecting a tower, and two ends of the insulation tension-resistant part are respectively in drawing connection with the wire drawing part and the tower drawing part; the insulating tensile member comprises an insulating isolation part and a length adjuster.
2. The backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line according to claim 1, wherein the insulating isolation part is an insulating pulling plate, and two ends of the insulating pulling plate are respectively provided with at least one connecting hole.
3. The backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line according to claim 1, wherein the length adjuster is a lead screw.
4. The backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line according to claim 1, wherein the insulating tension-resistant member is connected with the lead tension-resistant member rotating pair, the insulating tension-resistant member is connected with the tower tension-resistant member rotating pair, and a rotating shaft of the insulating tension-resistant member and the lead tension-resistant member is perpendicular to a rotating shaft of the insulating tension-resistant member and the tower tension-resistant member.
5. The use method of the backup protection safety device for live overhaul of the single strain insulator string of the high-voltage transmission line according to any one of claims 1 to 4, characterized by comprising the following steps:
and connecting the transmission conductor by using the conductor traction piece, connecting the tower traction piece by using the tower traction piece, and adjusting the length of the length adjuster to ensure that the insulation tension-resistant piece pulls the transmission conductor and the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909052.0A CN113517656A (en) | 2021-08-09 | 2021-08-09 | Backup protection safety device for live overhaul of single strain insulator string of high-voltage transmission line and use method of backup protection safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909052.0A CN113517656A (en) | 2021-08-09 | 2021-08-09 | Backup protection safety device for live overhaul of single strain insulator string of high-voltage transmission line and use method of backup protection safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113517656A true CN113517656A (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110909052.0A Pending CN113517656A (en) | 2021-08-09 | 2021-08-09 | Backup protection safety device for live overhaul of single strain insulator string of high-voltage transmission line and use method of backup protection safety device |
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| CN (1) | CN113517656A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2368201Y (en) * | 1999-04-13 | 2000-03-08 | 兰州供电局送电处 | Spare protection card for charged changing tension-resisting insulator chain |
| CN101174761A (en) * | 2007-10-30 | 2008-05-07 | 重庆市电力公司超高压局 | High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device |
| CN202206065U (en) * | 2010-12-08 | 2012-04-25 | 绥化电业局 | Electrified replacement strain insulator string back-up protection device |
| CN103795005A (en) * | 2014-03-05 | 2014-05-14 | 国家电网公司 | Special tool for dual protection of wire of strain tower |
-
2021
- 2021-08-09 CN CN202110909052.0A patent/CN113517656A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2368201Y (en) * | 1999-04-13 | 2000-03-08 | 兰州供电局送电处 | Spare protection card for charged changing tension-resisting insulator chain |
| CN101174761A (en) * | 2007-10-30 | 2008-05-07 | 重庆市电力公司超高压局 | High-voltage power line tension insulator string forward spin live-wire altering method and two yoke plate device |
| CN202206065U (en) * | 2010-12-08 | 2012-04-25 | 绥化电业局 | Electrified replacement strain insulator string back-up protection device |
| CN103795005A (en) * | 2014-03-05 | 2014-05-14 | 国家电网公司 | Special tool for dual protection of wire of strain tower |
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Application publication date: 20211019 |
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| RJ01 | Rejection of invention patent application after publication |