CN101252264B - Equipotential electrical highfield hot-line working method - Google Patents
Equipotential electrical highfield hot-line working method Download PDFInfo
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- CN101252264B CN101252264B CN2008100582399A CN200810058239A CN101252264B CN 101252264 B CN101252264 B CN 101252264B CN 2008100582399 A CN2008100582399 A CN 2008100582399A CN 200810058239 A CN200810058239 A CN 200810058239A CN 101252264 B CN101252264 B CN 101252264B
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Abstract
Disclosed is a live operation method of equipotential tools in a high electric field. In the method which makes use of an insulated jack ladder(3)and a motor winch (2), an insulated pulley(5) and an insulated sling(4)are carried onto an iron tower(1)by an electric tool, and the insulated pulley(5) is hitched at an appropriate position; the insulated sling(4) is threaded through the insulated pulley(5) and then is dropped onto the ground by the electric tool on the tower; one end of the insulated sling is tied onto the insulated jack ladder(3) and the other end is wound on the motor winch (2)by an electric tool on the ground. The motor winch (2)tows the insulated sling(4)and slings the insulated jack ladder(3) and the equipotential electric tools, and when the equipotential electric tools are 1.6-2.6m away from the leads, the motor winch (2)stops towing the insulated sling(4), then the equipotential electric tools enter the electric field through the insulated jack ladder(3) to be potentially equalized with the leads. The method is of good flexibility, safety, reliability and is time-saving and labor-saving.
Description
Technical field:
The invention belongs to the Equipotential electrical highfield hot-line working method technical field.
Technical background: the operational method that traditional equipotential electrician adopts insulated flexible ladder to enter electric field generally has two kinds: the one, and climb rope ladder from ground and enter electric field; Another kind is to enter electric field from body of the tower with hanging blue pendulum people.Preceding a kind of mode wastes time and energy, and especially the iron tower of 500kV circuit mostly is 40-50 rice, and equipotential electrician tires out after climbing to lead, has a strong impact on next step work; A kind of method in back is loaded down with trivial details time-consuming, and fail safe, reliability are bad.
Summary of the invention:
Above-mentioned existing operational method wastes time and energy, the shortcoming of fail safe poor reliability in order to overcome just in the present invention, and provide a kind of new equipotential electrician to enter highfield live line working method, promptly adopt the equipotential electrician to take advantage of insulated flexible ladder to enter highfield by the lifting simultaneously of motor-driven strand mill.
Concrete steps are as follows:
(1) electrician carries the insulation coaster on the tower, insulated sling is climbed up iron tower and hung up properly coaster at correct position;
(2) electrician is put to ground after insulated sling is passed the insulation coaster on the tower;
(3) the ground electrician on insulated flexible ladder, the other end is on motor-driven strand mill with an end bolt of insulated sling;
(4) the isopotential electrical work area is on insulated flexible ladder and the good safety belt of bolt;
(5) the ground electrician uses motor-driven strand mill traction insulated sling, and insulated flexible ladder and equipotential electrician are lifted by crane simultaneously;
(6) stop traction during at about 1.6～2.6 meters from lead as the equipotential electrician, oneself climb insulated flexible ladder by the equipotential electrician and enter electric field, with the lead equipotential.
The invention has the beneficial effects as follows:
Equipotential electrician takes advantage of insulated flexible ladder to enter in the process of electric field by the lifting simultaneously of motor-driven strand mill, equipotential electrician need not oneself exert all one's strength and climb rope ladder, operate motor-driven strand mill by the ground electrician equipotential electrician and insulated flexible ladder are elevated near the electric field simultaneously reposefully, the equipotential electrician is again from being advanced into highfield then.Adopt this operational method to greatly reduce the labour intensity that the equipotential electrician enters electric field, the present invention has that flexibility is good, fail safe is good, good reliability, time saving and energy saving remarkable advantage.
Further set forth content of the present invention below in conjunction with drawings and Examples.
Description of drawings:
Fig. 1 is the inventive method schematic diagram.
Embodiment:
As shown in Figure 1, the present invention adopts insulated flexible ladder 3 and motor-driven strand mill 2, by electrician on the tower carry insulation coaster 5, insulated sling 4 is climbed up iron tower 1 and is hung up properly insulation coaster 5 at correct position; The electrician is put to ground after insulated sling 4 is passed the insulation coaster on the tower; On insulated flexible ladder 3, the other end is on motor-driven strand mill 2 with an end bolt of insulated sling for the ground electrician; The isopotential electrical work area is on insulated flexible ladder 3 and the good safety belt of bolt; The ground electrician uses motor-driven strand mill 2 traction insulated slings 4, and insulated flexible ladder and equipotential electrician are lifted by crane simultaneously; When equipotential electrician 7 stops traction during at 1.6～2.6 meters from lead 6, enter electric field by equipotential electrician 7 by oneself climbing insulated flexible ladder, with the lead equipotential.The casual elder brother I of transmission of electricity management place 500kV of Dali Power Supply Bureau, Yunnan Power Grid Corporation returns the #58 tower to carry out in the operation process of the two string of charged for replacement A phase straight line lightning stroke flashover insulator, the operational method that has adopted equipotential electrician to take advantage of insulated flexible ladder to enter electric field by the lifting simultaneously of motor-driven strand mill, respond well.
Big and II loop line #89 tower carries out in the operation process of charged for replacement 500kV circuit L insulator string at 500kV, has adopted equipotential electrician to take advantage of insulated flexible ladder to lift by crane the operational method that enters electric field simultaneously by motor-driven strand mill, and is respond well.
Claims (1)
1. an Equipotential electrical highfield hot-line working method is characterized in that, adopts insulated flexible ladder (3) and motor-driven strand mill (2), by electrician on the tower carry insulation coaster (5), insulated sling (4) is climbed up iron tower (1) and is hung up properly the coaster (5) that insulate at correct position; The electrician is put to ground after insulated sling (4) is passed the insulation coaster on the tower; On insulated flexible ladder (3), the other end grinds on (2) around motor-driven strand the ground electrician with an end bolt of insulated sling; The isopotential electrical work area is gone up and the good safety belt of bolt at insulated flexible ladder (3); The ground electrician uses motor-driven strand mill (2) traction insulated sling (4), and insulated flexible ladder and equipotential electrician are lifted by crane simultaneously; When the equipotential electrician stops traction during at 1.6～2.6 meters from lead, the electrician enters electric field by insulated flexible ladder by equipotential, with the lead equipotential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100582399A CN101252264B (en) | 2008-04-02 | 2008-04-02 | Equipotential electrical highfield hot-line working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100582399A CN101252264B (en) | 2008-04-02 | 2008-04-02 | Equipotential electrical highfield hot-line working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252264A CN101252264A (en) | 2008-08-27 |
| CN101252264B true CN101252264B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100582399A Active CN101252264B (en) | 2008-04-02 | 2008-04-02 | Equipotential electrical highfield hot-line working method |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136693B (en) * | 2010-12-28 | 2013-01-02 | 中国南方电网有限责任公司超高压输电公司百色局 | Method and device for realizing long-distance equal electric potential access of winch hanging basket guide rail |
| CN103001148A (en) * | 2012-12-04 | 2013-03-27 | 铜川供电局 | Simple-root breakage high-altitude connecting method for 330kVdouble-bundled conductor |
| CN103606842A (en) * | 2013-11-08 | 2014-02-26 | 国家电网公司 | 220 KV linear same-tower double-loop live-line operation method |
| CN103683105A (en) * | 2013-12-17 | 2014-03-26 | 国家电网公司 | Live working method of phase conductor insulating arm aerial platform truck under 66kV electric transmission line |
| CN103787217A (en) * | 2014-02-21 | 2014-05-14 | 中国南方电网有限责任公司超高压输电公司南宁局 | Small-tooth-difference transmission light hand winch and using method thereof |
| CN104638565A (en) * | 2015-01-30 | 2015-05-20 | 国家电网公司 | Method for performing equipotential live line work by putting +/-800kV tangent tower electric transmission line into electric field |
| CN105375395B (en) * | 2015-12-17 | 2017-10-20 | 国家电网公司 | ± 800kV DC lines hotline maintenance turns ladder and operational method with insulation |
| CN109038365B (en) * | 2018-08-10 | 2019-12-31 | 国网四川省电力公司检修公司 | Load hoisting system for live replacement of 500kV linear insulator string |
| CN109406930A (en) * | 2018-10-24 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of method that U-shaped short-circuit test device is installed in livewire work |
| CN117712915B (en) * | 2023-12-05 | 2024-06-11 | 江苏恒康电力科技有限公司 | Maintenance device and maintenance method for drilling span type angle steel tower insulator |
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2008
- 2008-04-02 CN CN2008100582399A patent/CN101252264B/en active Active
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| CN101252264A (en) | 2008-08-27 |
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