CN113328373B - Ground potential all-terrain on-load operation special tool - Google Patents
Ground potential all-terrain on-load operation special tool Download PDFInfo
- Publication number
- CN113328373B CN113328373B CN202110418456.XA CN202110418456A CN113328373B CN 113328373 B CN113328373 B CN 113328373B CN 202110418456 A CN202110418456 A CN 202110418456A CN 113328373 B CN113328373 B CN 113328373B
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- bypass
- insulating
- hook
- terrain
- ground potential
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- 230000009471 action Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention provides a special tool for ground potential all-terrain on-load operation, which solves the technical problems and comprises a bypass drainage device, a lifting device and a fixing device; the lifting device is connected with the bypass drainage device at a low position and lifts the bypass drainage device to a high position, and the fixing device fixes the position of the bypass drainage device after the bypass drainage device moves to the high position under the action of the lifting device; the invention is not limited by construction operation environment, is convenient to use, has low cost and can well improve the operation efficiency and the safety.
Description
Technical Field
The invention belongs to the technical field of power equipment maintenance tools.
Background
The ground potential operation method refers to an operation method that a human body is at the ground potential and indirectly contacts equipment by using an insulating tool; it is a main mode of live working and is also the basis of other working methods. The ground potential operation method has the biggest characteristic that an operator can operate around the live equipment.
The insulating rod operation method in 10 KV live working has the advantages of wide application range, small investment, no limitation of geographical environment and the like, and is widely applied to live working in the power industry; however, the insulating rod is adopted for indirect operation, so that the operation is complex, and the requirements on the physical strength and the device of personnel are high.
The existing live replacement operation has the following three problems: firstly, a special platform is required to be erected by using an insulating rod indirect bypass to replace a pole-mounted switch operation method without power failure, a large number of components of the platform need to be transported by one engineering truck for each construction, and a large amount of manpower is required to be used for loading in advance, so that the construction work amount is large, and the operation time is long; secondly, the construction is greatly limited by the influence of the field operation environment, and the construction points need to be filled up; in addition, the special platform needs to be built layer by layer during each construction operation, components are easy to damage and lose in the construction process, and the use cost is greatly increased, so that the reliability and the safety of bypass live working are directly affected.
Disclosure of Invention
The invention aims to provide a ground potential all-terrain on-load operation special tool, which is not limited by construction operation environment, is convenient to use and low in cost, and can well improve the efficiency of uninterrupted operation.
The invention provides a special tool for ground potential all-terrain on-load operation, which solves the technical problems and comprises a bypass drainage device, a lifting device and a fixing device; the lifting device is connected with the bypass drainage device at a low position and lifts the bypass drainage device to a high position, and the fixing device fixes the position of the bypass drainage device after the bypass drainage device moves to the high position under the action of the lifting device.
Preferably, the bypass drainage device comprises a bypass cable and a bypass load switch, and the bypass cable is connected with the bypass load switch to form a bypass drainage circuit.
Preferably, one end of each bypass cable is connected with the bypass load switch through a quick plug-in type intermediate connector, and the other end of the bypass cable is provided with a connecting part.
Preferably, the lifting device comprises an insulating lifting rope, an insulating pulley, a quick connector and an insulating operation rod, wherein the bypass cable is connected with the quick connector through a connecting part, the operation end of the insulating operation rod is connected with the quick connector, a first hook is arranged on the quick connector, a pulley and a second hook are arranged on the insulating pulley, and the insulating lifting rope is used for hanging one end of the bypass cable close to the connecting part and lifting under the action of the pulley.
Preferably, the second hook is hooked on a high-level wire to be operated, and the bypass cable is overlapped with the high-level wire through the first hook on the quick connector.
Preferably, the fixing device comprises a cross arm, safety rings and self-locking clamps, wherein the cross arm is fixed on an electric pole near an operation area through a hoop, two ends of the cross arm are respectively connected with one safety ring, each safety ring is connected with three safety buckles, and the other end of each safety buckle is respectively connected with a self-locking clamp for clamping a bypass cable.
Preferably, the second hook is of a U-shaped structure, and a safety device for preventing the second hook from sliding down to hook the electric wire is arranged in the second hook.
Preferably, the insulating operation rod is of a telescopic structure capable of being spliced in multiple sections, and the insulating operation rod is made of epoxy resin materials.
Preferably, the material of the quick connector is copper.
Preferably, the safety ring is a spring safety ring made of stainless steel.
In summary, the technical scheme of the invention has at least the following beneficial effects:
1. in the live working early-stage preparation operation, the early-stage preparation operation amount can be greatly reduced;
2. The volume of the working tool is small, the working tool is not influenced by the construction environment, and the universality is high;
3. The special tool is manually controlled, so that the adjustment is convenient, no extra power is needed, and the failure rate is low;
4. in-process is to the bypass cable be connected and with tools such as auto-lock anchor clamps and quick-operation joint of overlap joint adoption of main conductor, convenient operation, insulating gloves collocation insulating action bars simultaneous operation, the security is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure (working state) of the fixing device of the present invention;
FIG. 3 is a schematic view of a lifting device according to the present invention;
FIG. 4 is a schematic view of the structure of the self-locking clamp of the present invention;
FIG. 5 is a schematic view of the structure of the fixing device of the present invention;
fig. 6 is a schematic view of the structure of the insulating operation rod, the quick connector and the bypass cable according to the present invention.
In the figure; a bypass load switch 11, a bypass cable 12; the device comprises a quick connector 21, an insulating lifting rope 22, an insulating pulley 23, an insulating operating rod 24, a first hook 25, a second hook 26, a cross arm 31, a safety ring 32, a self-locking clamp 33 and a safety buckle 34.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-6, The invention provides a ground potential all-terrain on-load operation special tool which is mainly used for replacing a switch or a drop-out fuse on a problem circuit under the condition of no power failure, and comprises three parts, namely a bypass drainage device part consisting of a bypass load switch 11 and a bypass cable 12; secondly, a lifting device part of the bypass cable 12, which consists of an insulating lifting rope 22, a special lifting insulating pulley 23 of the bypass cable 12, a quick connector 21 of the bypass cable 12 and a telescopic insulating operating rod 24; 3. the bypass cable 12 fixing device comprises a cross arm 31, a safety catch 34, an insulating lifting rope self-locking clamp 33 and the like; the lifting device is connected with the bypass drainage device at a low position and lifts the bypass drainage device to a high position, and the fixing device fixes the position of the bypass drainage device after the bypass drainage device moves to the high position under the action of the lifting device; wherein the bypass load switch 11 selects FLW31-12 type outdoor high-voltage alternating current SF6, the weight of the bypass load switch is 50KG, the rated short-time withstand current and the rated peak withstand current are 16kA and 40kA, the rated voltage and the rated current are 12kV and 200A respectively, the bypass load switch is connected and closed with six bypass cables 12 to form a bypass, the bypass cables 12 are 10kV extension cables, the product model is ERF8.7/15-1 x 50 (30)/HP-ZRK-50/HP-ZRK-50, one end of the bypass cable 12 is connected with the bypass load switch 11 through a quick plug-in middle joint, the other end of the bypass cable 12 is provided with a connecting part with copper nostrils, and the connecting part is used for being connected with a quick connector 21 in the lifting device; the lifting device comprises an insulating lifting rope 22, an insulating pulley 23, a quick connector 21 and an insulating operation rod 24, wherein the functions of the lifting device are divided into two parts, one part is required to be connected with the bypass cable 12, the other part is required to lift the connected bypass cable 12, in order to ensure the strength and the conductivity of the quick connector 21, the quick connector 21 is made of copper, the insulating operation rod 24 is an intermediate tool for holding operation by operators, the insulating operation rod is divided into a holding end and an operation end, the operation end of the insulating operation rod 24 is connected with the quick connector 21, and the connection modes of the insulating operation rod 24 are various, so that the invention proposes the following embodiment of a connection structure: the lower end of the quick connector 21 is connected with a middle hook through a threaded hole with phi 15 mm and an elastic screw, the upper end of the insulating operation rod 24 is provided with a threaded hole with the inner diameter of phi 14 mm and a shoe-shaped gold ingot fixing bolt to be connected with the middle hook, so that the insulating operation rod 24 and the quick connector 21 are connected, as shown in fig. 6; the quick connector 21 is provided with a first hook 25, the insulating pulleys 23 are provided with pulleys and a second hook 26, when the quick connector specifically works, firstly an operator uses a ground potential insulating rod indirect operation method to hook the second hooks 26 of the six insulating pulleys 23 at corresponding positions of high-position wires to be operated in sequence, thus providing a high-position supporting point for each insulating pulley 23, then tying one end of the six bypass cables 12 with the quick connector 21 through the insulating lifting ropes 22 respectively, then pulling the bypass cables 12 to the vicinity of the main wires under the action of the insulating operation rod 24, the insulating lifting ropes 22 and the pulleys, and after the position of the bypass cables 12 is adjusted to the optimal position, it should be noted that, during the lifting process of the bypass cables 12, in order to avoid the sliding off of the bypass cables 12, the position of each bypass cable 12 is pre-fixed by a fixing device, wherein the structure of the fixing device is shown in fig. 2 and 5; the fixing device comprises a cross arm 31, safety rings 32 and self-locking clamps 33, wherein the cross arm 31 is fixed at the bottom of an electric pole near an operation area through a hoop, two ends of the cross arm 31 are respectively connected with one safety ring 32, the safety rings 32 are of spring structures made of stainless steel, each safety ring 32 is connected with three safety buckles 34, and the other end of each safety buckle 34 is respectively connected with one self-locking clamp 33 for clamping a bypass cable 12, and the concrete operation is as follows: the insulating lifting rope 22 is put into the self-locking clamp 33 in a correct mode, the pulling piece is closed, the insulating lifting rope 22 is tightened at uniform speed, the bypass cable 12 slowly rises under the action of stretching force, when the ground operator wears the insulating glove and simultaneously stretches out and presses the gentleman type insulating operation rod 24 connected with the head of the bypass cable 12 and spreads the rest wire of the bypass cable 12, so that the bypass cable 12 head and the gentleman type insulating operation rod 24 ascend synchronously, after the bypass cable 12 lifts the proper position near the corresponding main wire, the ground operator No. 1 closes the insulating lifting rope self-locking clamp 33 to prevent the bypass cable 12 from falling, the self-locking clamp 33 of the insulating lifting rope 22 is connected with one end of the insulating lifting rope 22 through a manual control descent device, the insulating lifting rope 22 plays a role of fixing the bypass cable 12, the manual control descent device is made of 7075 aviation aluminum, and is firm and durable, the weight is light, and the pulley surface is smooth, so that the abrasion to the rope is reduced.
After all the six phase bypass cables 12 are adjusted in place, the bypass cables 12 are lapped with the main wires at this time, specifically: the ground operators wear the insulating gloves to hold the telescopic insulating operating rod 24 respectively, synchronously hang the bypass cable 12 quick connectors 21 at the operating ends of the operating rods on the power supply side in corresponding operation and the main conductors of the corresponding phases of load measurement, quickly screw the corresponding main conductors of the cable quick connectors 21 in clockwise direction, ensure good contact, after the bypass cables 12 of three phases are all lapped, close the bypass load switch 11 to enable the bypass cables 12 to operate in an electrified mode, and then carry out switch (or drop-out fuse) replacement operation on the column with load.
Regarding the second hook 26 on the insulation pulley 23, in order to further improve the reliability of connection, the second hook 26 has a U-shaped structure, and a safety device for preventing the second hook 26 from sliding down to hook the wire is provided inside the second hook 26.
According to the invention, the insulating operation rod 24 is of a telescopic structure capable of being spliced in multiple sections, the insulating operation rod 24 is made of epoxy resin materials, and the length of each section of the insulating operation rod 24 is designed to be 1.5 meters.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (5)
1. The ground potential all-terrain on-load operation special tool is characterized by comprising a bypass drainage device, a lifting device and a fixing device; the lifting device is connected with the bypass drainage device at a low position and lifts the bypass drainage device to a high position, and the fixing device is used for fixing the position of the bypass drainage device in the lifting process of the lifting device;
The bypass drainage device comprises a plurality of bypass cables and bypass load switches, and the bypass cables are connected with the bypass load switches to form a bypass drainage circuit;
One end of each bypass cable is connected with the bypass load switch through a quick plug-in type intermediate joint, and the other end of each bypass cable is provided with a connecting part;
the lifting device comprises an insulating lifting rope, an insulating pulley, a quick connector and an insulating operation rod, wherein the bypass cable is connected with the quick connector through a connecting part, the operation end of the insulating operation rod is connected with the quick connector, a first hook is arranged on the quick connector, a pulley and a second hook are arranged on the insulating pulley, and the insulating lifting rope is tied to one end of the bypass cable close to the connecting part and is lifted under the action of the pulley;
the second hook is hooked on a high-level wire to be operated, and the bypass cable is overlapped with the high-level wire through the first hook on the quick connector;
The fixing device comprises a cross arm, safety rings and self-locking clamps, wherein the cross arm is fixed on an electric pole near an operation area through a hoop, two ends of the cross arm are respectively connected with one safety ring, each safety ring is connected with three safety buckles, and the other end of each safety buckle is respectively connected with a self-locking clamp for clamping a bypass cable.
2. The ground potential all-terrain on-load operation special tool according to claim 1, wherein the second hook is of a U-shaped structure, and a safety device for preventing the second hook from sliding down to hook a wire is arranged in the second hook.
3. The ground potential all-terrain on-load operation special tool according to claim 1, wherein the insulating operation rod is of a telescopic structure capable of being spliced in multiple sections, and is made of epoxy resin materials.
4. The ground potential all-terrain on-load operation special tool according to claim 1, wherein the quick connector is made of copper.
5. The ground potential all-terrain on-load operation special tool according to claim 1, wherein the safety ring is a spring safety ring made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418456.XA CN113328373B (en) | 2021-04-19 | 2021-04-19 | Ground potential all-terrain on-load operation special tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418456.XA CN113328373B (en) | 2021-04-19 | 2021-04-19 | Ground potential all-terrain on-load operation special tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113328373A CN113328373A (en) | 2021-08-31 |
| CN113328373B true CN113328373B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110418456.XA Active CN113328373B (en) | 2021-04-19 | 2021-04-19 | Ground potential all-terrain on-load operation special tool |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004023858A (en) * | 2002-06-14 | 2004-01-22 | Kurihara Kogyo Co Ltd | Cable transferring method and device for stringing cable |
| CN203734209U (en) * | 2014-02-17 | 2014-07-23 | 广东电网公司佛山供电局 | Live working device for cable bypass |
| CN109687349A (en) * | 2018-12-29 | 2019-04-26 | 徐州海伦哲特种车辆有限公司 | A kind of bypass cable stringing method and its special equipment |
| CN110821151A (en) * | 2019-12-06 | 2020-02-21 | 荆门市佰思机械科技有限公司 | Self-lifting climbing formwork device for transporting personnel |
| CN110890715A (en) * | 2019-12-19 | 2020-03-17 | 国网山东省电力公司烟台供电公司 | Bypass drainage tool for live-line installation of power transmission line ground potential method and defect handling operation method thereof |
| CN111009851A (en) * | 2019-12-19 | 2020-04-14 | 国网浙江省电力有限公司温州供电公司 | Portable live working bypass equipment |
| KR20210033710A (en) * | 2019-09-19 | 2021-03-29 | (주) 진흥이엔지 | Power distribution method using bypass cable |
| CN112645210A (en) * | 2021-01-25 | 2021-04-13 | 国网山东省电力公司菏泽供电公司 | Bypass flexible cable hoisting accessory |
| CN215267389U (en) * | 2021-04-19 | 2021-12-21 | 国网浙江淳安县供电有限公司 | Earth potential all-terrain load operation special tool |
-
2021
- 2021-04-19 CN CN202110418456.XA patent/CN113328373B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004023858A (en) * | 2002-06-14 | 2004-01-22 | Kurihara Kogyo Co Ltd | Cable transferring method and device for stringing cable |
| CN203734209U (en) * | 2014-02-17 | 2014-07-23 | 广东电网公司佛山供电局 | Live working device for cable bypass |
| CN109687349A (en) * | 2018-12-29 | 2019-04-26 | 徐州海伦哲特种车辆有限公司 | A kind of bypass cable stringing method and its special equipment |
| KR20210033710A (en) * | 2019-09-19 | 2021-03-29 | (주) 진흥이엔지 | Power distribution method using bypass cable |
| CN110821151A (en) * | 2019-12-06 | 2020-02-21 | 荆门市佰思机械科技有限公司 | Self-lifting climbing formwork device for transporting personnel |
| CN110890715A (en) * | 2019-12-19 | 2020-03-17 | 国网山东省电力公司烟台供电公司 | Bypass drainage tool for live-line installation of power transmission line ground potential method and defect handling operation method thereof |
| CN111009851A (en) * | 2019-12-19 | 2020-04-14 | 国网浙江省电力有限公司温州供电公司 | Portable live working bypass equipment |
| CN112645210A (en) * | 2021-01-25 | 2021-04-13 | 国网山东省电力公司菏泽供电公司 | Bypass flexible cable hoisting accessory |
| CN215267389U (en) * | 2021-04-19 | 2021-12-21 | 国网浙江淳安县供电有限公司 | Earth potential all-terrain load operation special tool |
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| CN113328373A (en) | 2021-08-31 |
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