CN203690803U - Backup protection device for live replacement of power transmission line tension insulator - Google Patents
Backup protection device for live replacement of power transmission line tension insulator Download PDFInfo
- Publication number
- CN203690803U CN203690803U CN201420044825.9U CN201420044825U CN203690803U CN 203690803 U CN203690803 U CN 203690803U CN 201420044825 U CN201420044825 U CN 201420044825U CN 203690803 U CN203690803 U CN 203690803U
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- backup protection
- tension insulator
- protection device
- protection
- line tension
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Abstract
The utility model discloses a backup protection device for live replacement of a power transmission line tension insulator. The backup protection device is composed of a protection fixture block, wherein the middle part of the protection fixture block is provided with a wire clamping hole, the protection fixture block is provided with a control slideway column, the control slideway column is provided with a sliding slot, the sliding slot is internally provided with a safety pin which is capable of moving up and down, the protection fixture block is provided with a connecting ring, and the connecting ring is internally provided with an insulating rope. The backup protection device disclosed by the utility model not only has the advantages of simple structure and light weight, but also is ingenious in design, high in reliability and safety and simple to operate, thereby realizing installation ground potential, and improving the work efficiency.
Description
Technical field
The utility model relates to a kind of protective device, particularly a kind of charged for replacement power line tension insulator backup protection equipment.
Background technology
At present, power line tension insulator bears the weight of wire for a long time, the balance of wire and unbalanced tensile force and wire is played to insulation isolation, it is long-term outside exposed, extremely easily aging under the effect of electromechanical combination and environmental pollution, due to the special geographical environment in Guizhou, transmission line is all in lightning strike area mostly, insulator suffers thunderbolt very serious, insulator is due to aging, suffer can lose insulation property after lightning stroke flashover and artificial damage, if not in time poor insulator is changed, will strengthen the electric insulation burden of other intact insulator is made to its accelerated ageing, in addition when the quantity of damaged insulator is too much, when dense fog occurs, drizzle, while seriously congealing weather, the electrical insulation properties that remains intact insulator can not meet electric insulation and require to cause line tripping, seriously jeopardize the safe operation of transmission line and whole electrical network, interruption maintenance is changed insulator, must cause a large amount of energy losses, and maintenance scheduling is not strong, power transformation operator on duty have a power failure, power transmission, mounting or dismounting converting equipment safety measure, some uncertain factors when scheduling person on duty dispatches, misoperation risk, bring huge security risk to electrical network, interruption maintenance is also subject to the restriction of activity duration.
But in being carried out to live-line replacing process, strain insulator runs the backup protection equipment of line accident owing to lacking at present necessary preventing at operation process because the factor of human factor, instrument meets accident; once there is to run line in such operation process; cause catastrophic consequence will to people, charging equipment, electrical network; the fail safe of live line working can not get enough guarantees, also buries potential safety hazard to hot line maintenance.If there is no protective device in the process of changing tension insulator in live line operation; once have an accident; the drainage thread of transmission line will be straightened; or skid off from drainage thread parallel groove clamp; charged drainage thread will contact with cross-arm; it is even dead to cause that line-to-ground tripping operation, wire fly out, wire moment blows, earth potential working personnel are electrically shocked, burn; the serious consequence of electric network from collapsing; if what adopt is equal potential working method, occur the serious consequence that very likely causes equal potential working personnel from falling from high altitude once unexpected.
Known transmission line changing tension insulator in live line protective device kind lacking very, existing be all utilize epoxy resin both insulation pulling plate be material, utilize original jig as support, its complex structure, quality weight, comparatively difficulty of the shaft tower that traffic cannot arrive and transport, when operating personnel works on shaft tower, operation easier is larger, and device in the past can only adopt equal potential working mode, very low of hot line maintenance or transmission line operation and maintenance field level of application, substantially be not promoted, so existing apparatus for examination and repair is still perfect not.
Summary of the invention
The purpose of this utility model is: thus provide a kind of simple in structure, practical, reliability is safe, simple to operate realization installed earth potential, a kind of charged for replacement power line tension insulator backup protection equipment of increasing work efficiency, to overcome the deficiencies in the prior art.
The utility model is constructed as follows: a kind of charged for replacement power line tension insulator backup protection equipment; backup protection equipment is by protecting jig piece to form; middle part at protection jig piece is provided with wire line hole; on protection jig piece, be provided with and control slideway post; on control slideway post, be provided with chute, in chute, be provided with safety plug moving up and down, on protection jig piece, arrange porose; in hole, be provided with connecting ring, in connecting ring, be provided with insulating cord.
On protection jig piece, be provided with the insurance pin-and-hole that can allow safety plug pass.
On safety plug, be provided with safety plug suspension ring.
Owing to having adopted technique scheme, first the high-strength insulating rope of protection jig piece is fixed on to cross-arm, tightening up screw mandrel connects, tighten up fixing cord by tightening up screw mandrel, tighten up high-strength insulating rope and form the backup protection that is replaced insulator string, in realizing backup protection, do not affect again the normal work of changing insulator string, protection jig piece side of wire was jig is locked in to the junction of wire and strain clamp, but clamped wire, but be sleeved on wire, like this in the time tightening up job card, backup protection just can not have influence on the stressed of job card, side of wire was jig adopts self-locking device, earth potential electrician can be locked in backup protection equipment side of wire was jig cover on wire with action bars, thereby realize, earth potential is installed, compared with prior art, the utility model not only has simple in structure, the advantage that quality is light, thereby and design ingenious, safe and reliable, reliability is safe, earth potential is installed in realization simple to operate, the advantage such as increase work efficiency.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Description of reference numerals: 1-protection jig piece, 2-wire line hole, 3-controls slideway post, 4-chute, 5-safety plug, 6-hole, 7-connecting ring, 8-insulating cord, 9-insures pin-and-hole, 10-safety plug suspension ring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Enforcement of the present utility model: a kind of charged for replacement power line tension insulator backup protection equipment; backup protection equipment is by protecting jig piece 1 to form; middle part at protection jig piece 1 is provided with wire line hole 2; on protection jig piece 1, be provided with and control slideway post 3; on control slideway post 3, be provided with chute 4, in chute 4, be provided with safety plug 5 moving up and down, on protection jig piece 1, arrange porose 6; in hole 6, be provided with connecting ring 7, in connecting ring 7, be provided with insulating cord 8.
On protection jig piece 1, be provided with the insurance pin-and-hole 9 that can allow safety plug 5 pass.
On safety plug 5, be provided with safety plug suspension ring 10.
In the utility model, insulating cord 8 is that existing percentage elongation is 5%, and diameter is the high-strength insulating rope of φ 20, and the material of protection jig piece 1 is the raw material that LC4 (mechanical performance optimum in the middle of No. 4 extra super duralumin alloys) is jig.
When the utility model work, be divided into earth potential operation and equipotential operation, when earth potential operation, be divided into following step:
1, earth potential electrician carries out personnel security in replacing insulator string cross-arm side appropriate location;
2, tools for live working and bottle-holding rack are assembled;
3, suitably tighten up the screw mandrel of tools for live working, make it in initial stressed state;
4, earth potential electrician utilizes the bowl hook on insulating bar to hook the safety plug suspension ring of safety plug 5, wire line hole 2 is stuck on the wire in strain clamp exit;
5, the insulating cord of the device other end is fixed on to cross-arm firmly on member and do not affect the place of operation.And tightened up and make it in slight stress.
When equipotential operation, be divided into following step:
1, earth potential electrician and equipotential electrician cooperatively interact and live working tools are assembled complete, and make it in initial stressed state;
2, on cross arm of tower, earth potential electrician utilizes insulating cord that device jig end is passed to equal potential working electrician, and equal potential working electrician is stuck in the wire line hole of protection jig piece on the wire in strain clamp exit;
3, earth potential working tightens up insulating cord be fixed on cross-arm firmly on member, is advisable, and makes it in slight stress not affect operation.
The utility model uses safety, convenient and reliable operation, and quality is light, has greatly improved operating efficiency.
Claims (3)
1. a charged for replacement power line tension insulator backup protection equipment, it is characterized in that: backup protection equipment is by protecting jig piece (1) to form, middle part at protection jig piece (1) is provided with wire line hole (2), on protection jig piece (1), be provided with and control slideway post (3), on control slideway post (3), be provided with chute (4), in chute (4), be provided with safety plug moving up and down (5), on protection jig piece (1), porose (6) are set, in hole (6), be provided with connecting ring (7), in connecting ring (7), be provided with high-strength insulating rope (8).
2. charged for replacement power line tension insulator backup protection equipment according to claim 1, is characterized in that: on protection jig piece (1), be provided with the insurance pin-and-hole (9) that can allow safety plug (5) pass.
3. charged for replacement power line tension insulator backup protection equipment according to claim 1, is characterized in that: on safety plug (5), be provided with safety plug suspension ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044825.9U CN203690803U (en) | 2014-01-24 | 2014-01-24 | Backup protection device for live replacement of power transmission line tension insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044825.9U CN203690803U (en) | 2014-01-24 | 2014-01-24 | Backup protection device for live replacement of power transmission line tension insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690803U true CN203690803U (en) | 2014-07-02 |
Family
ID=51012670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044825.9U Expired - Fee Related CN203690803U (en) | 2014-01-24 | 2014-01-24 | Backup protection device for live replacement of power transmission line tension insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690803U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752987A (en) * | 2015-03-03 | 2015-07-01 | 国家电网公司 | Pressing connection pipe drainage connection plate installation device |
| CN110224361A (en) * | 2019-07-12 | 2019-09-10 | 国网青海省电力公司海东供电公司 | A kind of power line tension drainage string secondary protector |
| CN115133455A (en) * | 2022-06-23 | 2022-09-30 | 广东电网有限责任公司 | Construction machine and method for replacing insulator of high-voltage line |
| CN110224361B (en) * | 2019-07-12 | 2024-05-03 | 国网青海省电力公司海东供电公司 | Secondary protection device for tension-resistant drainage string of power transmission line |
-
2014
- 2014-01-24 CN CN201420044825.9U patent/CN203690803U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752987A (en) * | 2015-03-03 | 2015-07-01 | 国家电网公司 | Pressing connection pipe drainage connection plate installation device |
| CN110224361A (en) * | 2019-07-12 | 2019-09-10 | 国网青海省电力公司海东供电公司 | A kind of power line tension drainage string secondary protector |
| CN110224361B (en) * | 2019-07-12 | 2024-05-03 | 国网青海省电力公司海东供电公司 | Secondary protection device for tension-resistant drainage string of power transmission line |
| CN115133455A (en) * | 2022-06-23 | 2022-09-30 | 广东电网有限责任公司 | Construction machine and method for replacing insulator of high-voltage line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170124 |