CN102290736A - Maintenance board ladder for 220KV overhead ground wire - Google Patents
Maintenance board ladder for 220KV overhead ground wire Download PDFInfo
- Publication number
- CN102290736A CN102290736A CN2011101183684A CN201110118368A CN102290736A CN 102290736 A CN102290736 A CN 102290736A CN 2011101183684 A CN2011101183684 A CN 2011101183684A CN 201110118368 A CN201110118368 A CN 201110118368A CN 102290736 A CN102290736 A CN 102290736A
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- China
- Prior art keywords
- ladder
- ground wire
- overhead ground
- board ladder
- maintenance
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- 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.)
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Abstract
The invention relates to a device for the live maintenance of an overhead ground wire, in particular to a maintenance board ladder for the 220KV Lixu line overhead ground wire, which is the board ladder for maintaining the overhead ground wire under the conditions of ensuring no line power failure and the safety of personnel and equipment. In the invention, pulleys are respectively arranged at both ends of the upper part of the board ladder, and leading wire clamping grooves are respectively arranged at both ends of the lower part of the board ladder; and the lower end of the board ladder is connected with a rope ladder. Compared with the prior art, the maintenance board ladder can carry out the maintenance work of the overhead ground wire through live working or equipotential working under the condition of the normal operation of the 220KV Lixu line, transfer part of the bearing loads of the overhead ground wire, ensure the safety of the personnel and the equipment, greatly enhance the reliability of power supply, and ensure the safety of a human body and the equipment. Due to the adoption of the pulleys as a movement medium, the maintenance board ladder has the characteristics of flexibility and no restriction of fault points, also has the advantages of simplicity in material and appliance manufacturing, convenience in carry, small investment, high safety and the like, and can be popularized for application.
Description
Technical field
The present invention relates to a kind of hotline maintenance overhead ground wire device, relate in particular to a kind of Li 220kv Xu line overhead ground wire access panel ladder.Be a kind ofly to guarantee that circuit does not have a power failure, and the plate ladder of maintenance overhead ground wire under the situation of assurance personnel and device security.
Background technology
At present, the service work of known transmission line overhead ground wire all should be carried out under power-off condition, the general packaged type common plate ladder that adopts, two pulleys of the general employing in plate ladder top, can be free to slide on line, job area is unrestricted, and personnel directly enter the plate ladder by rope ladder or from the shaft tower the overhead ground wire injury region is carried out repairing work.But, because the user is more and more higher to the requirement of power supply reliability at present, difficulty has a power failure, and under the more situation of the disconnected number of share of stock of overhead ground wire because the limited as easy as rolling off a log appearance broken string accident of lifting capacity, cause casualties and the serious consequence of device damage, so the overhead ground wire service work exists certain difficulty always.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of Li 220kv Xu line overhead ground wire access panel ladder is provided.Purpose is can carry out the overhead ground wire upkeep operation in order to provide a kind of under charged situation, and can significantly improve the reliability of power supply and a kind of Li 220kv Xu line overhead ground wire access panel ladder of fail safe.
The technical solution adopted for the present invention to solve the technical problems is:
Li 220kv Xu line overhead ground wire access panel ladder comprises the plate ladder, is respectively equipped with pulley in the both upper ends thereof of plate ladder, and two ends, plate ladder bottom are respectively equipped with the lead draw-in groove, and the lower end of plate ladder is connected with rope ladder.
Described plate ladder is made for insulating material.
Described pulley is provided with locking device.
Each section of ladder of described plate ladder is the round insulation bar structure.
Described lead draw-in groove is provided with three.
The present invention compared with prior art can carry out the overhead ground wire service work by live line working or equal potential working, and can shift part overhead ground wire load-bearing load, assurance personnel and device security under Li 220kv Xu circuit normal operation.Promptly the reliability of power supply can be improved widely, the person, device security can be guaranteed again.Owing to adopt pulley as move media, therefore have flexibly, be not subjected to the characteristics of fault point restriction, also have material tool make simple, easy to carry, invest little, advantages such as fail safe height, and can applying.
Description of drawings
Fig. 1 is a invention process status architecture schematic diagram.
Fig. 2 is the structural representation of facing of Li 220kv Xu line overhead ground wire access panel ladder.
Fig. 3 is the end view of Fig. 2.
Among the figure: pulley 1, plate ladder 2, lead draw-in groove 3, rope ladder 4, overhead ground wire 5, lead 6, shaft tower 7.
Embodiment
Below in conjunction with specific embodiments of the invention and accompanying drawing, the present invention is described in detail.
As shown in Figure 1-Figure 3, the outward appearance of Li 220kv of the present invention Xu line overhead ground wire access panel ladder is similar with common plate ladder structure, and plate terraced 2 is made for insulating material, and each section of ladder of plate ladder 2 is the round insulation bar structure.The upper end of plate ladder 2 is provided with two pulleys 1, this pulley 1 is provided with locking device, make the scope of activities of plate ladder unrestricted, can also the plate ladder be fixed by locking device, two ends, plate ladder bottom are respectively arranged with three lead draw-in grooves 3, this lead draw-in groove 3 can carry out extension position according to the distance between overhead ground wire and lead to be regulated, and working method is live line working or equal potential working.
During concrete enforcement, Li 220kv Xu line overhead ground wire access panel ladder of the present invention is positioned between the overhead ground wire 5 and lead 6 on the shaft tower 7, plate ladder 2 upper ends hang on the overhead ground wire 5 by pulley 1,
Utilize the locking device on the pulley 1 that pulley 1 is fixed on the overhead ground wire 5; Block on lead 6 by lead draw-in groove 3 lower end, the lower end of plate ladder 2 is connected with rope ladder 4 orders again, the operating personnel passes through on the rope ladder 4 to plate ladder 2 parts, carry out overhead ground wire patch work, because the plate ladder is placed between overhead ground wire 5 and the lead 6, can make overhead ground wire 5 shift gravity load to a certain extent by plate ladder 2 guiding lines 6, thereby 6 pairs of overhead ground wires 5 of lead are played a supporting role, and the dielectric strength between guaranteeing, the staff only needs to climb to plate ladder 2 from rope ladder 4 and carries out the overhead wire upkeep operation.The part weight of human body and material can be transferred on the lead 6 under the more tight situation of overhead ground wire 5 disconnected number of share of stock orders, thereby reduce the gravity load of overhead ground wire 5, reduce overhead ground wire 5 and cause the probability of line-to-ground, short circuit tripping operation accident, thereby reached the purpose that has guaranteed personnel and device security when carrying out the overhead wire upkeep operation again charged because of broken string.
Claims (5)
1.220kv Li Xu line overhead ground wire access panel ladder, it comprises the plate ladder, it is characterized in that: the both upper ends thereof of plate ladder (2) is respectively equipped with pulley (1), and two ends, plate ladder bottom are respectively equipped with lead draw-in groove (3), and the lower end of plate ladder (2) is connected with rope ladder (4).
2. Li 220kv Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described plate ladder (2) is made for insulating material.
3. Li 220kv Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described pulley (1) is provided with locking device.
4. Li 220kv Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: each section of ladder of described plate ladder (2) is the round insulation bar structure.
5. Li 220kv Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described lead draw-in groove (3) is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101183684A CN102290736A (en) | 2011-05-09 | 2011-05-09 | Maintenance board ladder for 220KV overhead ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101183684A CN102290736A (en) | 2011-05-09 | 2011-05-09 | Maintenance board ladder for 220KV overhead ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102290736A true CN102290736A (en) | 2011-12-21 |
Family
ID=45336929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101183684A Pending CN102290736A (en) | 2011-05-09 | 2011-05-09 | Maintenance board ladder for 220KV overhead ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102290736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212453A (en) * | 2019-06-12 | 2019-09-06 | 国网河北省电力有限公司衡水供电分公司 | A kind of high pressure architomy grounded-line outlet slide chair |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2376041A (en) * | 2001-05-30 | 2002-12-04 | Balfour Beatty Plc | Mounting ladder on overhead cables |
| CN201260051Y (en) * | 2008-08-22 | 2009-06-17 | 华中电网有限公司 | Anti-dropping soft ladder for overhead line operation |
| CN201285999Y (en) * | 2008-09-26 | 2009-08-05 | 宁夏电力公司超高压电网运行分公司 | Soft ladder for high voltage line maintenance |
| US20090301812A1 (en) * | 2008-06-09 | 2009-12-10 | Kerr James F | Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during use |
| CN202121251U (en) * | 2011-05-09 | 2012-01-18 | 辽宁省电力有限公司沈阳供电公司 | 220kV Li Xu line overhead earth wire overhauling plate ladder |
-
2011
- 2011-05-09 CN CN2011101183684A patent/CN102290736A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2376041A (en) * | 2001-05-30 | 2002-12-04 | Balfour Beatty Plc | Mounting ladder on overhead cables |
| US20090301812A1 (en) * | 2008-06-09 | 2009-12-10 | Kerr James F | Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during use |
| CN201260051Y (en) * | 2008-08-22 | 2009-06-17 | 华中电网有限公司 | Anti-dropping soft ladder for overhead line operation |
| CN201285999Y (en) * | 2008-09-26 | 2009-08-05 | 宁夏电力公司超高压电网运行分公司 | Soft ladder for high voltage line maintenance |
| CN202121251U (en) * | 2011-05-09 | 2012-01-18 | 辽宁省电力有限公司沈阳供电公司 | 220kV Li Xu line overhead earth wire overhauling plate ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212453A (en) * | 2019-06-12 | 2019-09-06 | 国网河北省电力有限公司衡水供电分公司 | A kind of high pressure architomy grounded-line outlet slide chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121009 Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant after: Liaoning Shenyang Electric Power Supply Co., Ltd. Applicant after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant before: Liaoning Shenyang Electric Power Supply Co., Ltd. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111221 |