CN201153196Y - Electric potential transferring stick of alternating current ultra / super high-tension line live-line work - Google Patents
Electric potential transferring stick of alternating current ultra / super high-tension line live-line work Download PDFInfo
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- CN201153196Y CN201153196Y CNU2007203004391U CN200720300439U CN201153196Y CN 201153196 Y CN201153196 Y CN 201153196Y CN U2007203004391 U CNU2007203004391 U CN U2007203004391U CN 200720300439 U CN200720300439 U CN 200720300439U CN 201153196 Y CN201153196 Y CN 201153196Y
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Abstract
The utility model relates to a potential transfer rod used for AC ultra/extra high voltage line live-line operation. The potential transfer rod is characterized in that a wire lead 7, a connector 8, a metal rod 9 and a metal hook 10 are included, wherein, the wire lead 7 and the metal hook 10 are respectively connected to the two ends of the metal rod 9; the connector 8 is connected to the other end head of the wire lead 7; the metal rod 9 is of a round shape and has a smooth surface. After putting on an ultra/extra high voltage AC live-line operation whole shielding close suit, the operator approaches the lead by riding a delivery vehicle such as an insulated glide, a hanging basket, and the like and when the lead is 0.4 to 0.6 m away, the potential transfer rod is used to transfer the potential into the equal potential. By adopting the potential transfer rod, the pulse current is greatly reduced when the potential is transferred, the electric arc is obviously weakened, the damage to the safety of the operator and the corrosion to the shielding cloth are avoided, the safety for entering into the equal potential is greatly enhanced, the service life of the shielding cloth is prolonged and the live-line operation efficiency is enhanced.
Description
Technical field
The utility model belongs to the ultra-high-tension power transmission line field, relates to exchanging the electric potential transferring stick of using when ultra-high/extra-high voltage line live-line work current potential equipotential enters.
Background technology
Live line working has become important means and the method that power circuit detects, overhauls, transforms, for the safe and reliable operation of electric power system has been brought into play crucial effect with increasing economic efficiency.Entering equipotential is the important process step of hot line maintenance, is directly connected to operating personnel's safety and efficiency of operation.Take delivery vehicles such as hanging basket or chair lift near lead after many employing operating personnels wear a complete set of shielding clothing (comprising conductive glove) in existing 500kV of China and the following electric pressure hot line maintenance, (for 110kV, 220kV circuit, this distance is 0.3m at distance electrified body certain distance; For the 500kV circuit, this distance is for 0.4m) thus the time directly catch and touch electrified body and realize that potential transfer enters equipotential.For example relevant method introduced in " the high height above sea level 500kV hot line maintenance technical Analysis " literary composition on " Sichuan power technology " the 1st phase in 2004.
When the operating personnel enters potential transfer in the equipotential process, have a capacitor discharge pulse current, and be attended by electric arc.This pulse current increases along with the raising of electric pressure, and electric arc then strengthens along with the increase of pulse current.For 750-1000kV ultra-high/extra-high voltage alternating current circuit, employed method enters equipotential in 500kV and the following electric pressure live line working if still adopt, pulse electric current and electric arc will work the mischief to operating personnel's safety when the potential transfer process, and will damage screening clothing.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes existing live line working equipotential access method, a kind of interchange ultra-high/extra-high voltage line live-line work electric potential transferring stick is provided, electric arc when eliminate exchanging potential transfer in the super extra high voltage line live line working is to operating personnel's harm with to the ablation of screening clothing, improves that extra-high voltage AC circuit enters equipotential fail safe, prolongs the useful life of screening clothing, the operating efficiency of raising live line working.
The technical solution of the utility model is: a kind of interchange ultra-high/extra-high voltage line live-line work electric potential transferring stick, it is characterized in that: it comprises lead-in wire 7, connector 8, metal bar 9 and metal hook 10, lead-in wire 7 and metal hook 10 are connected to the two ends of metal bar 9, connector 8 is connected on another termination of lead-in wire 7, and metal bar 9 is circular, its smooth surface.
Use the super extra high voltage line live line working electric potential transferring stick of interchange to carry out in the live line working, the operating personnel dresses the special-purpose a complete set of shielding clothing of super extra-high-voltage alternating current live line working, take the insulation delivery vehicle near electrified body after being connected electric potential transferring stick well with screening clothing, when distance electrified body 0.4-0.6m, use above-mentioned electric potential transferring stick (can be long) contact electrification body to carry out potential transfer, enter equipotential as 0.4-.06m.
Good effect: adopt the utility model, pulse current (about 30-50% is hanged down in test and computational chart publicly price-reduction) when significantly reducing to exchange super ultra high voltage live line working potential transfer, obviously weaken electric arc, and avoided harm that electric arc causes operating personnel's safety and to the ablation of screening clothing, improve greatly and enter equipotential fail safe, prolong the useful life of screening clothing, improve the live line working operating efficiency.
Description of drawings
Fig. 1 is the equipotential method schematic diagram that enters of the present utility model.
Fig. 2 is the structure chart of electric potential transferring stick of the present utility model.
Concrete execution mode
The utility model is described in more detail below in conjunction with accompanying drawing.
The explanation of mark in 1 among the figure: the 1-ground wire, 2-insulator string, 3-are cross-arms, 4-lead, 5-electric potential transferring stick, 6-hanging basket (people is sitting in wherein);
The explanation of mark in 2 among the figure: 7-lead-in wire, 8-connector, 9-metal bar, 10-metal hook.
The utility model embodiment as shown in Figure 1.
The 1000kV of the utility model embodiment exchanges ultra-high/extra-high voltage line live-line work electric potential transferring stick, it is characterized in that: it comprises lead-in wire 7, connector 8, metal bar 9 and metal hook 10, lead-in wire 7 and metal hook 10 are connected to the two ends of metal bar 9, connector 8 is connected on another termination of lead-in wire 7, and metal bar 9 is circular, its smooth surface.
Electric potential transferring stick is connected with screening clothing well by connector 8, and the length of metal bar 9 is 0.5m, and hanging wire metal hook 10 conveniently articulates lead, realizes potential transfer.
When the 1000kV interchange ultra-high/extra-high voltage line live-line work electric potential transferring stick of use present embodiment carries out live line working, the operating personnel dresses a complete set of shielding clothing of super extra-high-voltage alternating current live line working, the hanging basket 6 (or the chair lift etc. that insulate) of taking insulation after being connected electric potential transferring stick well with screening clothing is near lead 4, when distance of wire 4 (electrified body) 0.5m, use special-purpose electric potential transferring stick contact wire 4 to carry out potential transfer, enter equipotential.Distance of wire 0.5m is meant outermost (may be that knee also may be a hand) the distance of wire 0.5m of human body, human body also will be considered when contact wire can not be from body of the tower too near (being greater than 0.5m), not so be exactly electrified body having contacted lead 4 back human bodies, apart from the body of the tower danger of will discharging between person of modern times's body and body of the tower very much.
Claims (1)
1, a kind of interchange ultra-high/extra-high voltage line live-line work electric potential transferring stick, it is characterized in that: it comprises lead-in wire (7), connector (8), metal bar (9) and metal hook (10), lead-in wire (7) and metal hook (10) are connected to the two ends of metal bar (9), connector (8) is connected on another termination of lead-in wire (7), and metal bar (9) is circular, its smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203004391U CN201153196Y (en) | 2007-12-27 | 2007-12-27 | Electric potential transferring stick of alternating current ultra / super high-tension line live-line work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203004391U CN201153196Y (en) | 2007-12-27 | 2007-12-27 | Electric potential transferring stick of alternating current ultra / super high-tension line live-line work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153196Y true CN201153196Y (en) | 2008-11-19 |
Family
ID=40128873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203004391U Expired - Lifetime CN201153196Y (en) | 2007-12-27 | 2007-12-27 | Electric potential transferring stick of alternating current ultra / super high-tension line live-line work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153196Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227068B (en) * | 2007-12-27 | 2010-06-02 | 国网电力科学研究院 | electric potential transferring stick for AC super or ultra high voltage line live working |
| CN103986093A (en) * | 2014-06-11 | 2014-08-13 | 国家电网公司 | Equipotential transfer rod for high-voltage alternating current transmission line |
| CN104377579A (en) * | 2014-11-07 | 2015-02-25 | 国家电网公司 | Potential shifting rod for hot-line work of alternating-current ultra high voltage substation |
| CN105576554A (en) * | 2016-01-15 | 2016-05-11 | 中国电力科学研究院 | Control device and method for ultrahigh-voltage live working potential transfer current and arc |
-
2007
- 2007-12-27 CN CNU2007203004391U patent/CN201153196Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227068B (en) * | 2007-12-27 | 2010-06-02 | 国网电力科学研究院 | electric potential transferring stick for AC super or ultra high voltage line live working |
| CN103986093A (en) * | 2014-06-11 | 2014-08-13 | 国家电网公司 | Equipotential transfer rod for high-voltage alternating current transmission line |
| CN103986093B (en) * | 2014-06-11 | 2017-07-04 | 国家电网公司 | HVAC power transmission line equipotential transferring stick |
| CN104377579A (en) * | 2014-11-07 | 2015-02-25 | 国家电网公司 | Potential shifting rod for hot-line work of alternating-current ultra high voltage substation |
| CN105576554A (en) * | 2016-01-15 | 2016-05-11 | 中国电力科学研究院 | Control device and method for ultrahigh-voltage live working potential transfer current and arc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE NETWORK ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: WUHAN HIGH VOLTAGE RESEARCH INSTITUTE OF STATE GRID Effective date: 20091120 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091120 Address after: Nanjing City, Jiangsu Province, Nan Shui Road No. 8, zip code: 210003 Patentee after: State Grid Electric Power Research Insititute Address before: Hubei province Wuhan city Hongshan District Luoyu road 143, zip code: 430074 Patentee before: Guowang Wuhan High Voltage Inst |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20081119 Effective date of abandoning: 20071227 |