CN106229881B - Into the method and rope ladder head used of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field - Google Patents
Into the method and rope ladder head used of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field Download PDFInfo
- Publication number
- CN106229881B CN106229881B CN201610635282.1A CN201610635282A CN106229881B CN 106229881 B CN106229881 B CN 106229881B CN 201610635282 A CN201610635282 A CN 201610635282A CN 106229881 B CN106229881 B CN 106229881B
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- rope ladder
- head
- electric field
- kilovolt
- ladder head
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- 230000005684 electric field Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 230000005611 electricity Effects 0.000 title claims abstract description 25
- 230000001960 triggered effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000725 suspension Substances 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The present invention relates to a kind of method of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field of entrance and rope ladder head used, the tail end of rope ladder is fixed on tower body correct position；Ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction；Equipotential live line work personnel climb up rope ladder at tower body；Earth potential working personnel discharge rope ladder tail end tricing line, make rope ladder tail end close to wire, equipotential live line work personnel enter electric field.Rope ladder head is provided with self-locking device, and self-locking device includes spring（32）, connecting rod（33）, drawstring（35）, compressing member（36）With the abutment being fixedly installed on rope ladder head（37）, equipotential live line work personnel one climb up rope ladder, just trigger self-locking device so that drawstring（35）Tighten, rope ladder head can not be slided along ground wire.Using the method, operating personnel can smoothly pass in and out electric field, solve 500/220 kilovolt of multiple-loop line transmission line of electricity because many combinational gaps are complicated, safe distance is nervous, the problem of operating personnel is difficult to turnover electric field.
Description
Technical field
The present invention relates to a kind of method for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field and used improved soft
Terraced head.
Background technology
Multiple-loop line transmission line of electricity can subtract while improving unit area transmission capacity, meeting power Transmission demand
Few comprehensive cost and line corridor cost, with obvious economic benefit and social benefit.Because of multiple-loop line transmission line of electricity full cut-off
Overhaul probability low, it is particularly important that defect elimination work is carried out in livewire work.Wherein how to enter electric field is that livewire work is primarily solved
Problem, 500/220 kilovolt of multiple-loop line transmission line of electricity uses traditional rope ladder because many combinational gaps are complicated, safe distance is nervous
Method, operating personnel can not pass in and out highfield.
The content of the invention
It is an object of the invention to provide a kind of method for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field and used
Improved rope ladder head, can easily pass in and out highfield, and method is implemented simple.
The technical scheme is that：A kind of method for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, including
Following steps：
A. rope ladder head and insulated flexible ladder are suspended on ground wire, the tail end of rope ladder is fixed on tower body correct position；
B. ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction；
C. equipotential live line work personnel climb up rope ladder at tower body；
D. earth potential working personnel release rope ladder tail end tricing line, makes rope ladder tail end close to wire, equipotential live line work personnel
Into electric field；
The rope ladder head is provided with self-locking device, and self-locking device includes spring 32, connecting rod 33, drawstring 35, the and of compressing member 36
It is fixedly installed on the abutment 37 on rope ladder head；
The one end of spring 32 is connected on rope ladder head, and the other end is connected with the tail end of connecting rod 33, and the head end of connecting rod 33 is fixed with pressure
Tight part 36, connecting rod 33 can be rotatably set on rope ladder head；
The one end of drawstring 35 is connected to the tail end of connecting rod 33, and the other end is tied up on rope ladder, and equipotential live line work personnel one climb up rope ladder,
Just self-locking device is triggered so that drawstring 35 is tightened, by ground clamp between, rope ladder head can not for compressing member 36 and abutment 37
Slided along ground wire.
Further, the tail end of rope ladder is fixed on wire cross-arm.
Further, ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction, it is ensured that rope ladder head and iron
Tower keeps enough safe distances.
Further, in rope ladder in wire process, equipotential live line work personnel adjust oneself position on rope ladder, make
The shoulder of oneself is tried one's best concordant with wire.
Further, when equipotential personnel distance of wire about 0.4m apart from when, earth potential working personnel accelerate insulating cord release
Speed is put, equipotential personnel catch rapidly wire, are successfully entered equipotential.
Rope ladder head used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field of entrance that the present invention is provided,
Rope ladder head is provided with self-locking device, and self-locking device includes spring 32, connecting rod 33, drawstring 35, compressing member 36 and fixed
It is arranged on the abutment 37 on rope ladder head；
The one end of spring 32 is connected on rope ladder head, and the other end is connected with the tail end of connecting rod 33, and the head end of connecting rod 33 is fixed with pressure
Tight part 36, connecting rod 33 can be rotatably set on rope ladder head；
The one end of drawstring 35 is connected to the tail end of connecting rod 33, and the other end is tied up on rope ladder when in use, equipotential live line work personnel one
Climb up rope ladder, just trigger self-locking device so that drawstring 35 is tightened, compressing member 36 and abutment 37 by conductor grip between,
Rope ladder head can not be slided along wire.
The self-locking device is arranged on the lower section of the pulley of rope ladder head.
The connecting rod 33 is rotatably connected on rope ladder head by rotating shaft 34.
The compressing member 36 and abutment 37 are semicircular arc.
The compressing member 36 and abutment 37 clamp wire from upper and lower side respectively.
When the improved rope ladder head of the present invention is used for 500/220 kilovolt of multiple-loop line hot line maintenance, equipotential people
Member's turnover electric field, is suspended on ground wire, and the weight change on rope ladder can be achieved and inspires rope ladder head self-locking and reset.
The method for the entrance electric field that the present invention is specific to 500/220 kilovolt of multiple-loop line transmission line of electricity and proposed, this
Inventive method has the following advantages that：
1）Using the method, operating personnel can smoothly pass in and out electric field, solve 500/220 kilovolt of multiple-loop line transmission line of electricity
Because many combinational gaps are complicated, safe distance is nervous, the problem of operating personnel is difficult to turnover electric field；
2）Rope ladder head has the self-locking inspired with weight change and reset function, during operating personnel's climbing rope ladder, rope ladder
Position does not change, can effective guarantee operating personnel safety.
Brief description of the drawings
Accompanying drawing 1 is 500/220 kilovolt of multiple-loop line transmission line of electricity electric field of entrance of an embodiment of the invention
Method schematic diagram.
Accompanying drawing 2 is the rope ladder head schematic diagram of a specific embodiment of the invention.
Wherein, the S1 of position one, the S2 of position two, the S3 of position three, ground wire A, wire B, along ground wire drag direction d, ground wire cross-arm
1st, wire cross-arm 2, rope ladder 3, rope ladder tail end tricing line 4, pulley 5, fixed component 31, spring 32, connecting rod 33, rotating shaft 34, drawstring
35th, compressing member 36, abutment 37.
Embodiment
Such as Fig. 2, it is the rope ladder head of a specific embodiment of the invention, a self-locking is set below the pulley 5 of rope ladder head
Device, self-locking device can be arranged on rope ladder head by fixed component 31.Self-locking device include spring 32, connecting rod 33, drawstring 35,
Compressing member 36, abutment 37.
The one end of spring 32 is arranged on rope ladder head by fixed component 31, and the other end is connected with the tail end of connecting rod 33.Connecting rod 33
Compressing member 36 is fixedly installed in head end（It for example can be brake block）.Connecting rod 33 is rotatably connected on rope ladder head by rotating shaft 34.
The one end of drawstring 35 is connected to the tail end of connecting rod 33, is tightened when the other end is used with rope ladder 3.
Abutment 37 is fixedly installed on rope ladder head.Compressing member 36 and abutment 37 can be semicircular arc, so as to by ground wire A
It is clipped in therebetween.
During operation, after rope ladder 3 is connected with rope ladder head, rope ladder head is hung on ground wire A, abutment 37 is against wire
Above B, drawstring 35 is tied up at the correct position of rope ladder 3, now due to the pulling force of spring 32, the weight of rope ladder can't be triggered certainly
Locking device, rope ladder head can be slided along ground wire A.Once people climbs up rope ladder, self-locking device is triggered so that drawstring 35 is tightened, spring 32
Elongation, drawstring 35 pulls downward on connecting rod 33, and ground wire A is tightly clipped in by the rotate counterclockwise of connecting rod 33, the contact ground wire A of compressing member 36
Center, rope ladder head is fixed, and rope ladder head can not be slided along ground wire A.People is when rope ladder is left, spring reset.
Accompanying drawing 1 is 500/220 kilovolt of multiple-loop line transmission line of electricity electric field of turnover of an embodiment of the invention
Method schematic diagram, specifically includes following steps：
1）After ground cooperation personnel combine rope ladder head with insulated flexible ladder, coordinate with ground potential personnel, by rope ladder head suspension
On ground wire, the tail end of rope ladder is fixed on tower body correct position（Such as in the figure root somewhere of wire cross-arm 2）, now rope ladder be in
The S1 of position one；
2）Ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction, it is ensured that rope ladder head keeps foot with steel tower
Enough safe distances, now rope ladder is in the S2 of position two；
3）Equipotential live line work personnel are at tower body（At wire cross-arm 2）Rope ladder is climbed up, the self-locking device of rope ladder head is triggered, this
When rope ladder head can not be moved along ground wire；
4）Earth potential working personnel（At wire cross-arm 2）Rope ladder tail end tricing line 4 is discharged, makes rope ladder tail end gently
Close to wire（Such as S3 of figure position three）, in rope ladder in wire process, equipotential live line work personnel adjust oneself on rope ladder
Position, makes the shoulder of oneself try one's best concordant with wire；
5）When equipotential personnel's distance of wire 0.4m apart from when, earth potential working personnel accelerate insulating cord rate of release, etc.
Current potential personnel catch rapidly wire, are successfully entered equipotential；
6）Equipotential live line work personnel enter after electric field, by rope ladder bolt on wire, and run to trouble point along wire, complete
Corresponding job task；
7）When going out electric field, equipotential live line work personnel return to fixed rope ladder position, and climb up rope ladder, untie rope ladder；
8）Earth potential working personnel tighten up insulation ropes, when equipotential personnel and wire 0.4m apart from when, earth potential working
Personnel accelerate to tighten up insulation rope speed, and equipotential personnel unclamp rapidly wire, successfully exit electric field.
Claims (10)
1. a kind of method for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, it is characterised in that including following steps：
A. rope ladder head and insulated flexible ladder are suspended on ground wire, the tail end of rope ladder is fixed on tower body correct position；
B. ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction；
C. equipotential live line work personnel climb up rope ladder at tower body；
D. earth potential working personnel release rope ladder tail end tricing line, makes rope ladder tail end close to wire, equipotential live line work personnel enter
Electric field；
The rope ladder head is provided with self-locking device, and self-locking device includes spring（32）, connecting rod（33）, drawstring（35）, compressing member
（36）With the abutment being fixedly installed on rope ladder head（37）；
Spring（32）One end is connected on rope ladder head, the other end and connecting rod（33）Tail end is connected, connecting rod（33）Head end is fixed with
Compressing member（36）, connecting rod（33）It can be rotatably set on rope ladder head；
Drawstring（35）One end is connected to connecting rod（33）Tail end, the other end is tied up on rope ladder, and equipotential live line work personnel one climb up rope ladder,
Just self-locking device is triggered so that drawstring（35）Tighten, compressing member（36）And abutment（37）By ground clamp between, rope ladder
Head can not be slided along ground wire.
2. the method according to claim 1 for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, its feature exists
In：The tail end of rope ladder is fixed on wire cross-arm.
3. the method according to claim 1 for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, its feature exists
In：Ground coordinates personnel to pull rope ladder head along ground wire to away from tower body direction, it is ensured that rope ladder head keeps enough peaces with steel tower
Full distance.
4. the method according to claim 1 for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, its feature exists
In：In rope ladder in wire process, equipotential live line work personnel adjust oneself position on rope ladder, the shoulder of oneself is tried one's best
It is concordant with wire.
5. the method according to claim 1 for entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, its feature exists
In：When equipotential personnel distance of wire about 0.4m apart from when, earth potential working personnel accelerate insulating cord rate of release, equipotential people
Member catches wire rapidly, is successfully entered equipotential.
6. one kind enters rope ladder head used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field, it is characterised in that：
Rope ladder head is provided with self-locking device, and self-locking device includes spring（32）, connecting rod（33）, drawstring（35）, compressing member（36）With
It is fixedly installed on the abutment on rope ladder head（37）；
Spring（32）One end is connected on rope ladder head, the other end and connecting rod（33）Tail end is connected, connecting rod（33）Head end is fixed with
Compressing member（36）, connecting rod（33）It can be rotatably set on rope ladder head；
Drawstring（35）One end is connected to connecting rod（33）Tail end, the other end is tied up on rope ladder when in use, equipotential live line work personnel one
Rope ladder is climbed up, self-locking device is just triggered so that drawstring（35）Tighten, compressing member（36）And abutment（37）By conductor grip at the two
Between, rope ladder head can not be slided along wire.
7. according to claim 6 enter rope ladder head used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field,
It is characterized in that：Self-locking device is arranged on the lower section of the pulley of rope ladder head.
8. according to claim 6 enter rope ladder head used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field,
It is characterized in that：Connecting rod（33）Pass through rotating shaft（34）It is rotatably connected on rope ladder head.
9. according to claim 6 enter rope ladder head used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field,
It is characterized in that：Compressing member（36）And abutment（37）For semicircular arc.
10. according to claim 9 enter rope ladder used in the process of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field
Head, it is characterised in that：Compressing member（36）And abutment（37）Respectively wire is clamped from upper and lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635282.1A CN106229881B (en) | 2016-08-05 | 2016-08-05 | Into the method and rope ladder head used of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635282.1A CN106229881B (en) | 2016-08-05 | 2016-08-05 | Into the method and rope ladder head used of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field |
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| Publication Number | Publication Date |
|---|---|
| CN106229881A CN106229881A (en) | 2016-12-14 |
| CN106229881B true CN106229881B (en) | 2017-11-03 |
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| CN201610635282.1A Active CN106229881B (en) | 2016-08-05 | 2016-08-05 | Into the method and rope ladder head used of 500/220 kilovolt of multiple-loop line transmission line of electricity electric field |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905719B (en) * | 2017-10-31 | 2019-02-22 | 国网河南省电力公司检修公司 | A kind of electric power overhaul ladder |
| CN108640051B (en) * | 2018-07-19 | 2024-02-02 | 国网辽宁省电力有限公司盘锦供电公司 | Insulating lifting device |
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|---|---|---|---|---|
| DE202010007283U1 (en) * | 2010-05-20 | 2010-08-26 | GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG | Ladder fuse for a ladder |
| CN201802298U (en) * | 2010-09-29 | 2011-04-20 | 新疆电力公司昌吉电业局 | Overhead power transmission line electrified ladder head locking device |
| DE202013006652U1 (en) * | 2013-07-24 | 2013-08-23 | Schwemmer & Dorn + Co Gmbh | mast Head |
| CN204030429U (en) * | 2014-08-07 | 2014-12-17 | 国家电网公司 | Self-locking coaster |
| CN104979776A (en) * | 2015-07-10 | 2015-10-14 | 中国电力科学研究院 | Method for entering equipotential level for tension support of UHV transmission line |
| CN205039456U (en) * | 2015-10-23 | 2016-02-17 | 江苏省电力公司无锡供电公司 | Patrol and examine electric ranaway for single string |
| CN105429046A (en) * | 2015-12-17 | 2016-03-23 | 国家电网公司 | Rope ladder head used for equipotential live working and application method therefor |
| CN205863782U (en) * | 2016-08-05 | 2017-01-04 | 国网湖南省电力公司带电作业中心 | Rope ladder head used during entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field |
-
2016
- 2016-08-05 CN CN201610635282.1A patent/CN106229881B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010007283U1 (en) * | 2010-05-20 | 2010-08-26 | GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG | Ladder fuse for a ladder |
| CN201802298U (en) * | 2010-09-29 | 2011-04-20 | 新疆电力公司昌吉电业局 | Overhead power transmission line electrified ladder head locking device |
| DE202013006652U1 (en) * | 2013-07-24 | 2013-08-23 | Schwemmer & Dorn + Co Gmbh | mast Head |
| CN204030429U (en) * | 2014-08-07 | 2014-12-17 | 国家电网公司 | Self-locking coaster |
| CN104979776A (en) * | 2015-07-10 | 2015-10-14 | 中国电力科学研究院 | Method for entering equipotential level for tension support of UHV transmission line |
| CN205039456U (en) * | 2015-10-23 | 2016-02-17 | 江苏省电力公司无锡供电公司 | Patrol and examine electric ranaway for single string |
| CN105429046A (en) * | 2015-12-17 | 2016-03-23 | 国家电网公司 | Rope ladder head used for equipotential live working and application method therefor |
| CN205863782U (en) * | 2016-08-05 | 2017-01-04 | 国网湖南省电力公司带电作业中心 | Rope ladder head used during entering 500/220 kilovolt of multiple-loop line transmission line of electricity electric field |
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| CN106229881A (en) | 2016-12-14 |
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Address after: 410100 No. 8 Lixiangzhong Road, Changsha Economic Development Zone, Hunan Province Co-patentee after: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee after: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: HUNAN PEACE PROSPERITY ELECTRIC Ltd. Address before: 410100 No. 8 Lixiangzhong Road, Changsha Economic Development Zone, Hunan Province Co-patentee before: STATE GRID HUNAN ELECTRIC POWER Co. Patentee before: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee before: State Grid Corporation of China Co-patentee before: HUNAN PEACE PROSPERITY ELECTRIC Ltd. |
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Effective date of registration: 20190325 Address after: 410004 Xiangchaoyuan Experimental Building, 339 Xinshaodong Road, Tianxin District, Changsha City, Hunan Province Co-patentee after: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED, MAINTENANCE Co. Co-patentee after: STATE GRID CORPORATION OF CHINA Address before: 410100 No. 8 Lixiangzhong Road, Changsha Economic Development Zone, Hunan Province Co-patentee before: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee before: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee before: STATE GRID CORPORATION OF CHINA Co-patentee before: HUNAN PEACE PROSPERITY ELECTRIC Ltd. |