CN113328373A - Earth potential all-terrain load operation special tool - Google Patents
Earth potential all-terrain load operation special tool Download PDFInfo
- Publication number
- CN113328373A CN113328373A CN202110418456.XA CN202110418456A CN113328373A CN 113328373 A CN113328373 A CN 113328373A CN 202110418456 A CN202110418456 A CN 202110418456A CN 113328373 A CN113328373 A CN 113328373A
- Authority
- CN
- China
- Prior art keywords
- bypass
- tool
- hook
- terrain
- quick connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 14
- 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
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 5
- 241000309551 Arthraxon hispidus Species 0.000 description 4
- 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
- 230000000694 effects 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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 earth potential all-terrain on-load operation, which solves the technical problem that the special tool 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 manufacturing cost, and can well improve the operation efficiency and the safety.
Description
Technical Field
The invention belongs to the technical field of maintenance tools for power equipment.
Background
The ground potential working method is a working method that a human body is on 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 most characteristic of the ground potential operation method is that operators can operate around the live equipment.
The insulating rod operation method in 10kV live working has the advantages of wide application range, small investment, no geographic environment limitation and the like, and is widely applied to live working in the power industry; but because the insulating rod is adopted for indirect operation, the operation is more complex, and the requirements on the physical strength of a person and the device are higher.
The existing live replacement work has the following three problems: firstly, a special platform needs to be set up by using an insulating rod indirect bypass uninterrupted replacing pole top switch operation method, a large number of components of the platform need to be transported by an engineering vehicle every time of construction, a large amount of manpower is needed for getting on the platform in advance, the construction work amount is large, and the operation time is long; secondly, the construction is greatly influenced by the field operation environment, and the construction point needs to be filled and leveled; in addition, the special platform needs to be erected layer by layer during each construction operation, the 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 influenced.
Disclosure of Invention
The invention aims to provide a special tool for earth potential all-terrain on-load operation, which is not limited by construction operation environment, is convenient to use and low in manufacturing cost, and can well improve the efficiency of uninterrupted operation.
The invention provides a special tool for earth potential all-terrain on-load operation, which solves the technical problem that the special tool 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 current guiding device comprises a bypass cable and a bypass load switch, and the bypass cable and the bypass load switch are connected to form a bypass current guiding circuit.
Preferably, 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.
Preferably, hoisting device include insulating lifting rope, insulating coaster, high-speed joint head, insulating bar, the bypass cable passes through connecting portion and is connected with the high-speed joint head, and the operation end and the high-speed joint head of insulating bar are connected, be equipped with first couple on the high-speed joint head, be equipped with pulley and second couple on the insulating coaster, the one end that the bypass cable is close to connecting portion is hung to insulating lifting rope and promotes under the pulley effect.
Preferably, the second hook is hooked on a high-level wire to be operated, and the bypass cable is in lap joint with the high-level wire through the first hook on the quick connector.
Preferably, the fixing device comprises a cross arm, safety rings and a self-locking fixture, the cross arm is fixed on the electric pole near the 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 the self-locking fixture for clamping the bypass cable.
Preferably, the second hook is of a U-shaped structure, and a safety device for preventing the second hook from slipping off to hook the wire is arranged in the second hook.
Preferably, the insulating operating rod is of a telescopic structure capable of being spliced in multiple sections, and is made of epoxy resin materials.
Preferably, the quick connector is made of copper.
Preferably, the safety ring is a spring safety ring made of stainless steel.
In summary, the technical scheme of the invention at least has the following beneficial effects:
1. in the early preparation operation of live working, the early preparation operation amount can be greatly reduced;
2. the operation tool is small in size, free of influence of construction environment and high in universality;
3. the special tool is manually operated, the adjustment is convenient, additional power is not needed, and the failure rate is low;
4. the in-process adopts tools such as auto-lock anchor clamps and quick connector to the connection of bypass cable and with the overlap joint of leading wire, convenient operation, insulating gloves collocation insulating bar simultaneous operation, and the security is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the fixing device of the present invention in a structural (working) state;
FIG. 3 is a schematic view of the lifting device of the present invention;
FIG. 4 is a schematic view of the self-locking clamp of the present invention;
FIG. 5 is a schematic view of the fixing device of the present invention;
FIG. 6 is a schematic view of the connection structure of the insulated operating 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 quick connector 21, the insulating lifting rope 22, the insulating pulley 23, the insulating operating rod 24, the first hook 25, the second hook 26, the cross arm 31, the safety ring 32, the self-locking fixture 33 and the safety buckle 34.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As can be seen from the attached figures 1-6, the invention provides a special tool for earth potential all-terrain load operation, which is mainly used for replacing a switch or a drop-out fuse on a problem circuit without power failure, and comprises three parts, namely, a bypass current guiding device part consisting of a bypass load switch 11 and a bypass cable 12; a bypass cable 12 lifting device part consisting of an insulating lifting rope 22, a special insulating pulley 23 for lifting the bypass cable 12, a quick connector 21 for the bypass cable 12 and a telescopic insulating operating rod 24; thirdly, a fixing device part of the bypass cable 12, which consists of a cross arm 31, a safety catch 34, an insulating lifting rope self-locking clamp 33 and the like; when the device is used specifically, firstly, the bypass drainage device is laid on the ground near a circuit to be maintained, wherein the bypass drainage device comprises bypass cables 12 (generally six cables which respectively correspond to three phases of a load side and a power side) and a bypass load switch 11, and the bypass cables 12 are connected with the bypass load switch 11 to form a bypass drainage circuit; the bypass load switch 11 is 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, each bypass cable 12 is a 10kV extension cable, the product type is ERF8.7/15-1 x 50(30)/HP-ZRK15-50/HP-ZRK15-50, one end of each bypass cable 12 is connected with the bypass load switch 11 through a quick plug-in type intermediate joint, the other end of each bypass cable 12 is provided with a connecting part with a copper nostril, and the connecting part is used for being connected with a quick connecting head 21 in a lifting device; the lifting device comprises an insulating lifting rope 22, an insulating pulley 23, a quick connector 21 and an insulating operating rod 24, the functions of the lifting device are divided into two parts, one part is required to be connected with a bypass cable 12, the other part is required to lift the connected bypass cable 12, copper is selected as a material of the quick connector 21 in order to ensure the strength and the conductivity of the quick connector 21, the insulating operating rod 24 is an intermediate tool used for handheld operation of an operator and is divided into a holding end and an operating end, the operating end of the insulating operating rod 24 is connected with the quick connector 21, and the connecting modes of the insulating operating rod are various, so that the invention provides the following embodiments of a connecting structure: the lower end of the quick connector 21 is connected with a middle hook through a phi 15 mm threaded hole and an elastic screw, the upper end of the insulating operating rod 24 is provided with a phi 14 mm threaded hole and a shoe-shaped gold ingot fixing bolt to realize connection with the middle hook together, so that the insulating operating rod 24 is connected with the quick connector 21, as shown in figure 6; the quick connector 21 is provided with a first hook 25, the insulation pulleys 23 are provided with pulleys and a second hook 26, when in specific work, firstly, an operator uses a ground potential insulation rod indirect operation method to hook the second hooks 26 of the six insulation pulleys 23 at corresponding positions of high-position electric wires to be operated, so that a supporting point at a high position is provided for each insulation pulley 23, then one ends of the six bypass cables 12 with the quick connectors 21 are respectively tied and hung through the insulation lifting ropes 22, then the bypass cables 12 are lifted to the vicinity of the main conductor under the action of the insulation operating rod 24, the insulation lifting ropes 22 and the pulleys, after the positions of the bypass cables 12 are adjusted to the optimal positions, it needs to be noted that in the process of lifting the bypass cables 12, in order to avoid the bypass cables 12 from sliding off, the positions of each bypass cable 12 are pre-fixed through a fixing device, the structure of the fixing device is shown in figures 2 and 5; the fixing device comprises a cross arm 31, safety rings 32 and self-locking fixtures 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, three safety buckles 34 are connected to each safety ring 32, the other end of each safety buckle 34 is respectively connected with one self-locking fixture 33 for clamping the bypass cable 12, and the concrete operation is as follows: the insulating lifting rope 22 is arranged in the self-locking fixture 33 according to a correct mode, the pulling sheet is closed, the insulating lifting rope 22 is tightened at a uniform speed to enable the bypass cable 12 to slowly rise under the stretching acting force, a ground operator wears insulating gloves and simultaneously extends the telescopic insulating operating rod 24 connected with the head of the bypass cable 12 and the rest line of the unfolding bypass cable 12 to enable the head of the bypass cable 12 and the telescopic insulating operating rod 24 to synchronously rise, after the bypass cable 12 is lifted to a proper position near a corresponding main conductor, the ground No. 1 operator closes the insulating lifting rope self-locking clamp 33 to prevent the bypass cable 12 from falling off, 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 descender, the insulating lifting rope 22 plays a role of fixing the bypass cable 12, the manual control descender is made of 7075 aviation aluminum, and the insulating lifting rope is firm, durable, light in weight, smooth in pulley surface and capable of reducing abrasion to the rope.
After all the bypass cables 12 of the six phases are adjusted in place, the bypass cables 12 are lapped with the main conductor at the moment, specifically: ground operating personnel wear insulating gloves to respectively hold the telescopic insulating operating rod 24 to simultaneously and synchronously hang the quick connector 21 of the bypass cable 12 at the operating end of the operating rod on the main conductors of the power side and the corresponding phase of the load measurement in corresponding operation, and quickly screw the quick connector in the clockwise direction, so that the corresponding main conductor of the quick connector 21 of the cable is ensured to be in good contact, after the overlapping of the bypass cables 12 of three phases is completed, the bypass load switch 11 is closed to enable the bypass cable 12 to be in live operation, and then the operation of replacing a switch (or a drop-out fuse) is carried out on a column with load.
In order to further improve the connection reliability of the second hook 26 of the insulation pulley 23, the second hook 26 has a U-shaped structure, and a safety device for preventing the second hook 26 from slipping off and hooking the electric wire is provided in the second hook 26.
According to the invention, the insulating operating rod 24 is of a telescopic structure capable of being spliced in multiple sections, the insulating operating rod 24 is made of epoxy resin materials, and the length of each section of the insulating operating rod 24 is designed to be 1.5 m.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A special tool for ground potential all-terrain on-load operation 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 fixes the position of the bypass drainage device in the lifting process of the lifting device.
2. The tool special for all-terrain on-load operation of ground potential as claimed in claim 1, wherein the bypass current-guiding device comprises a plurality of bypass cables and a bypass load switch, and the bypass cables and the bypass load switch are connected to form a bypass current-guiding circuit.
3. The special tool for earth potential all-terrain loaded working according to claim 2, wherein one end of each bypass cable is connected with a bypass load switch through a quick plug-in intermediate connector, and the other end of each bypass cable is provided with a connecting part.
4. The tool as claimed in claim 3, wherein the lifting device comprises an insulation lifting rope, an insulation pulley, a quick connector and an insulation operating rod, the bypass cable is connected with the quick connector through a connecting portion, the operating end of the insulation operating rod is connected with the quick connector, the quick connector is provided with a first hook, the insulation pulley is provided with a pulley and a second hook, and the insulation lifting rope is tied to one end of the bypass cable close to the connecting portion and lifted under the action of the pulley.
5. The tool special for earth potential all-terrain loaded work according to claim 3, wherein the second hook is hooked on a high-level wire to be worked, and the bypass cable is lapped with the high-level wire through the first hook on the quick connector.
6. The special tool for earth potential all-terrain loaded operation as claimed in claim 2, wherein the fixing device comprises a cross arm, a safety ring and a self-locking clamp, the cross arm is fixed on the electric pole near the 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 one self-locking clamp for clamping a bypass cable.
7. The tool special for earth potential all-terrain loaded work according to claim 5, wherein the second hook is of a U-shaped structure, and a safety device for preventing the second hook from slipping off and hooking the electric wire is arranged in the second hook.
8. The tool as claimed in claim 3, wherein the insulating operating rod is a telescopic structure capable of being spliced in multiple sections, and is made of epoxy resin material.
9. The tool as claimed in claim 3, wherein the quick connector is made of copper.
10. The tool as claimed in claim 6, 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 true CN113328373A (en) | 2021-08-31 |
| CN113328373B CN113328373B (en) | 2024-05-28 |
Family
ID=77414838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110418456.XA Active CN113328373B (en) | 2021-04-19 | 2021-04-19 | Ground potential all-terrain on-load operation special tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113328373B (en) |
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 | A bypass drainage tool for live installation of transmission line ground potential method and method for dealing with defects |
| 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 | A bypass drainage tool for live installation of transmission line ground potential method and method for dealing with defects |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113328373B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1144334C (en) | Boom-mountable robotic arm | |
| CN103227431B (en) | 220kV long span super high town suspension insulator charged for replacement method | |
| CN108155601A (en) | A kind of method that on-load straight line pole changes tension-resistant rod | |
| CN101820144B (en) | Special tool of live line work for replacing rectilinear insulator string of large-section double multiple wire | |
| CN104143782B (en) | The electrification replacing tool of one ± 800kV line tension insulator chain and method | |
| CN105337217B (en) | A kind of instrument and its method of charged for replacement extra-high voltage ground electrode circuit linear insulator | |
| CN102664358B (en) | Live replacement method for static contact of 220 kV flexible busbar | |
| CN104868403A (en) | A portable 120-400mm2 steel-cored aluminum stranded wire shunt line fixture and its application method | |
| CN112357847B (en) | Portable lifting auxiliary device for live working | |
| CN206471747U (en) | It is a kind of can charged for replacement insulator arrangement | |
| CN113937665A (en) | Cable tensioning device for overhead laying of cables based on electric power engineering | |
| CN105375395A (en) | Insulation rotation ladder for +-8000kV DC circuit electrified circuit upkeep and working method | |
| CN215267389U (en) | Earth potential all-terrain load operation special tool | |
| CN110120643A (en) | A kind of ground potential distribution power circuit uninterrupted operation method | |
| CN104538887A (en) | Lifting converter of lightning wire | |
| CN201717173U (en) | 220KV vertically-opened disconnecting switch shunt device | |
| CN202611568U (en) | Insulation trestle ladder | |
| CN113328373B (en) | Ground potential all-terrain on-load operation special tool | |
| CN104836156A (en) | Synthetic insulator simple ladder | |
| CN210789936U (en) | Puncture earth clamp installation robot | |
| CN209488055U (en) | A line corner rod pay-off device | |
| CN112736768A (en) | Method for entering phase electric field in compact line | |
| CN114784587B (en) | An auxiliary bonding device for transformer grounding wires | |
| JP2009141999A (en) | Uninterruptive work method for distribution line on utility pole | |
| CN104201602B (en) | A kind of UHV transmission line bunch of insulator charged for replacement method and gold utensil thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |