CN103762517B - High-voltage ground wire installation method - Google Patents
High-voltage ground wire installation method Download PDFInfo
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- CN103762517B CN103762517B CN201410001639.1A CN201410001639A CN103762517B CN 103762517 B CN103762517 B CN 103762517B CN 201410001639 A CN201410001639 A CN 201410001639A CN 103762517 B CN103762517 B CN 103762517B
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- Prior art keywords
- montant
- clamping jaw
- voltage
- screw thread
- external screw
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- 238000009434 installation Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The present invention relates to high-voltage ground wire installation method on high voltage power transmission and transforming circuit, comprise the following steps：1）, two hooks of crane branch pipe bottom are suspended on connecting cross beam；2）, be fixedly connected with three or more montants on connecting cross beam, intert spacing transverse slat in one end of montant；3）, on every montant be set with a spring, then montant the other end intert pressing plate；4）, montant the other end outer surface external screw thread is set, cover nut on the external screw thread of the other end of montant, nut screwed on external screw thread, by spring compression, spacing transverse slat and pressing plate be arranged in parallel with crossbeam；5）, positioned at centre montant be provided with elongated end, clamping jaw is fixedly connected with elongated end, by the dropper clamps of high-voltage grounding wire in clamping jaw.The easy for installation, sound construction of the present invention, safe, low manufacture cost, connector it is versatile, other connection occasions on ultra-high-tension power transmission line can be adapted to use.
Description
Technical field
The present invention relates to the installation method of the safety devices on high voltage power transmission and transforming circuit, and in particular to one kind can make drop type
The contact of fuse stationary contact is good, disclosure satisfy that the high-voltage ground wire installation method of working earthing safety requirements.
Background technology
In daily production maintenance work, there are many service work carried out on transformer body, such as transformer
The work such as place lacks, replacing, arrester regular maintenance, rotation are overhauled on transformer body, in these type of work
In, the operating personnel on high-tension line inevitably touches the positions such as transformer pile head, high pressure downlead, arrester,
Due to high voltage drop-out type fuse cutout insulation porcelain major gene surface and oil contaminant, acid and alkali corrosion, arc through, insulation ag(e)ing, misty rain weather etc.
Reason, porcelain knob class of insulation decline of insulating can be caused, or even lose insulating capacity, even if now having removed crane branch pipe, high pressure
Fuse switch stationary contact still may be powered.Therefore, it is necessary to install high-voltage grounding wire in high voltage side of transformer, this is to protect
The very necessary technical measures for hindering operating personnel's personal safety and taking.But in high-voltage grounding wire installs link, often
It was found that great potential safety hazard be present.
High-voltage grounding wire is typically mounted at following position：At fuse switch stationary contact high pressure downlead fixed screw,
Or ground loop is filled in transformer high-voltage downlead, then high-voltage grounding wire is at ground loop, on arrester at pile crown and change
At depressor high-voltage pile.When installing high-voltage grounding wire in above position, due to being limited by operating condition, arm during practical operation
It is very inconvenient to coordinate with body part, and some positions can not even install, and causes high-voltage grounding wire installing to fully meet
Very big potential safety hazard be present in safety requirements, ground protection.Its reason have it is following some：1st, it is high in fuse switch stationary contact
Press and high-voltage grounding wire is installed at downlead fixed screw, the high-voltage ground wire installation method used at present is crotch-shaped, and it leads
To be applied to carry out installing use on the line, and when transformer body carries out service work installing, the ground wire of hook solid
Chuck and high voltage drop-out type fuse cutout stationary contact shape dissmilarity, mismatch, are not easy to operate, can not be formed between the two good
, effective contact, and high pressure downlead fixed screw is shorter, and the contact surface of ground wire chuck and downlead fixed screw is very
Small, ground wire installing is very inconvenient when operating, and ground wire easily falls, even if installing can not fully meet job site short circuit reluctantly
The requirement of electric current.2nd, the existing public transformer platform area more than 95% that becomes of electric company does not install high-voltage connection ground loop, and high pressure is drawn
Offline is all insulated conductor, and high-voltage grounding wire can not be installed at high pressure downlead.3rd, due to changing transformer, arrester work
As when need to remove transformer or remove arrester, therefore high-voltage grounding wire can not possibly be installed in transformer high-voltage pile crown or lightning-arrest
On device pile crown.It is to cause field operation to be installed in high-voltage grounding wire in this link that high-voltage grounding wire, which is installed inconvenience or can not installed,
The main reason for potential safety hazard be present.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of easy for installation, sound construction, security
Height, low manufacture cost, versatile high-voltage ground wire installation method.
To achieve the above object, a kind of high-voltage ground wire installation method that the present invention designs, comprises the following steps：
1）, two hooks of crane branch pipe bottom are suspended on connecting cross beam；
2）, be fixedly connected with three or more montants on connecting cross beam, intert spacing transverse slat in one end of montant；
3）, on every montant be set with a spring, then montant the other end intert pressing plate；
4）, montant the other end outer surface external screw thread is set, cover nut on the external screw thread of the other end of montant, nut revolved
Tightly it is arranged on external screw thread, by spring compression, spacing transverse slat and pressing plate be arranged in parallel with crossbeam；
5）, positioned at centre montant be provided with elongated end, clamping jaw is fixedly connected with elongated end, by the hook of high-voltage grounding wire
It is clipped in clamping jaw.
In the above-mentioned technical solutions, fixing hole is provided with clamping jaw, projection is set on the hook of high-voltage grounding wire, by height
The projection of crimping ground wire is filled into fixing hole, strengthens weight capacity of the clamping jaw in gravity direction.
In the above-mentioned technical solutions, in described three or more montants, the montant positioned at centre is circle, positioned at both sides
Montant is ellipse.
In the above-mentioned technical solutions, the connecting cross beam, montant, transverse slat, spring, nut, clamping jaw are with good conductive
The copper material of ability and corrosion resistance makes.
The present invention is coordinated using pressing plate and spring, ensures that ground wire chuck links up with it with high voltage drop-out type fuse cutout stationary contact
Between have enough contact surfaces and keep certain mechanical pressure, can fully contact between the two, so as to meet safety requirements.Used
Cheng Zhongke adjusts spring pressure by nut, and assembling, dismounting are simple, easy to operate, are applicable to different operating environment, are applied to
All kinds of fuse switch stationary contacts, there is general applicability, eliminate the potential safety hazard of high-voltage grounding wire installing link, meet
Working site safety requirements is adjusted
The each wire clamp low cost of cost accounting is carried out according to material object, existing electric company's high-voltage grounding wire is installed,
Invest small, more than 30 ten thousand are only needed if carrying out the installation transformation of wire ground ring to small and medium-sized cities more than a 3000 individual taiwan area and need to invest
Member, it is comparatively just extremely cheap, and a large amount of costs of labor and transformation time are saved, there is huge economic benefit and society to imitate
Benefit.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the structural representation for the connector that the present invention uses；
In figure：1- connecting cross beams；2- montants；3- transverse slats；4- springs；5- pressing plates；6- clamping jaws；7- nuts.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail：
High-voltage ground wire installation method as shown in Figure 1, comprises the following steps：
1）, two hooks of crane branch pipe bottom are suspended on connecting cross beam 1；
2）, be fixedly connected with three or more montants 2 on connecting cross beam 1, spacing transverse slat 3 is interted in one end of montant 2；
3）, on every montant 2 be set with a spring 4, then montant 2 the other end intert pressing plate 5；
4）, montant 2 the other end outer surface external screw thread is set, nut 7 is covered on the external screw thread of the other end of montant 2, by spiral shell
Cap 7 is screwed on external screw thread, and spring 4 is compressed, and spacing transverse slat 3 and pressing plate 5 be arranged in parallel with crossbeam 1；
5）, positioned at centre montant 2 be provided with elongated end 2.1, clamping jaw 6 is fixedly connected with elongated end 2.1, by high-voltage earthing
The dropper clamps of line are provided with fixing hole in clamping jaw 6 on clamping jaw 6, projection are set on the hook of high-voltage grounding wire, by high-voltage connecting
The projection of ground wire is filled into fixing hole, strengthens weight capacity of the clamping jaw 6 in gravity direction.
In above-mentioned three or more montants 2, the montant 2 positioned at centre is circle, and the montant 2 positioned at both sides is ellipse,
Correspondingly, spacing transverse slat 3 and pressing plate 5 are provided with the hole being engaged, this structural strengthening montant 2 and spacing transverse slat 3, pressing plate 5
Between active force, strengthen the mechanical mechanism power of whole connector.
Connector as shown in Figure 2, it includes a connecting cross beam 1, three montants 2 is fixedly connected with connecting cross beam 1, erects
Limited location transverse slat 3 is interted in one end of bar 2, and the end set of montant 2 has for by the spacing boss of transverse slat 3, being covered on every montant 2
Equipped with spring 4, the other end of montant 2 is interspersed with pressing plate 5, and the other end outer surface of montant 2 is provided with external screw thread, montant 2 it is another
Nut 7 is cased with the external screw thread of one end, spacing transverse slat 3 and pressing plate 5 are arranged in parallel with crossbeam 1, in three montants, positioned at centre
Montant 2 be provided with elongated end 2.1, be fixedly connected with clamping jaw 6 on elongated end 2.1, clamping jaw 6 is sleeved on elongated end 2.1 and passed through
Welding is fixedly secured.
Connecting cross beam 1, montant 2, transverse slat 3, spring 4, nut 7, clamping jaw 6 in the present embodiment, which are selected, has good conductive energy
The copper material of power and corrosion resistance makes, and meets the maximum short circuit current thermal capacity and maximum short circuit current in operation location
It is required that.
The crotch part of high-voltage earthing thread end is hung on clamping jaw 6, high voltage drop-out type fuse cutout stationary contact fixed interspersed
Ground is fixed on connecting cross beam 1, you can carries out high-voltage grounding wire installing, operation is very convenient, is connect with fuse switch stationary contact
Touch well, disclosure satisfy that the safety requirements of working earthing, eliminate and install high-voltage grounding wire on fuse switch stationary contact
Potential safety hazard present on this link.Dismantled after the completion of use also very convenient.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (3)
- A kind of 1. high-voltage ground wire installation method, it is characterised in that：Comprise the following steps：1), two hooks of crane branch pipe bottom are suspended on connecting cross beam (1)；2) three or more montants (2), are fixedly connected with connecting cross beam (1), intert spacing transverse slat (3) in one end of montant (2)；3) spring (4), is set with every montant (2), then interts pressing plate (5) in the other end of montant (2)；4), the other end outer surface of montant (2) sets external screw thread, covers nut (7) on the external screw thread of the other end of montant (2), will Nut (7) is screwed on external screw thread, and spring (4) is compressed, spacing transverse slat (3) and pressing plate (5) is parallel with crossbeam (1) sets Put；5), the montant (2) positioned at centre is provided with elongated end (2.1), clamping jaw (6) is fixedly connected with elongated end (2.1), by high pressure The dropper clamps of ground wire are provided with fixing hole in clamping jaw (6) on clamping jaw (6), and projection is set on the hook of high-voltage grounding wire, The projection of high-voltage grounding wire is filled into fixing hole, strengthens weight capacity of the clamping jaw (6) in gravity direction.
- 2. high-voltage ground wire installation method according to claim 1, it is characterised in that：Described three or more montants (2) In, the montant (2) positioned at centre is circle, and the montant (2) positioned at both sides is ellipse.
- 3. high-voltage ground wire installation method according to claim 1 or 2, it is characterised in that：The connecting cross beam (1), erect Bar (2), transverse slat (3), spring (4), nut (7), clamping jaw (6) are the copper material with good conductive ability and corrosion resistance Material makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001639.1A CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001639.1A CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103762517A CN103762517A (en) | 2014-04-30 |
| CN103762517B true CN103762517B (en) | 2017-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410001639.1A Expired - Fee Related CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103762517B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958373B (en) * | 2016-06-01 | 2017-10-03 | 王月娟 | A kind of high-tension cable is broken fast joint structure |
| CN107910814B (en) * | 2017-07-14 | 2019-08-02 | 国网浙江省电力公司湖州供电公司 | It is grounded Pilot Operational Equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201490351U (en) * | 2009-09-03 | 2010-05-26 | 华北电网有限公司秦皇岛电力公司 | Grounding wire connecting device |
| JP4749143B2 (en) * | 2005-12-16 | 2011-08-17 | 中国電力株式会社 | Grounding equipment and grounding short-circuit device |
| CN203166322U (en) * | 2013-03-27 | 2013-08-28 | 浙江顺豪电器有限公司 | Grounding clamp of switch cabinet |
| CN203300819U (en) * | 2013-05-23 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Insulating busbar bridge protecting grounding device |
| CN203367502U (en) * | 2013-07-02 | 2013-12-25 | 国家电网公司 | Wire grounding device |
-
2014
- 2014-01-03 CN CN201410001639.1A patent/CN103762517B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749143B2 (en) * | 2005-12-16 | 2011-08-17 | 中国電力株式会社 | Grounding equipment and grounding short-circuit device |
| CN201490351U (en) * | 2009-09-03 | 2010-05-26 | 华北电网有限公司秦皇岛电力公司 | Grounding wire connecting device |
| CN203166322U (en) * | 2013-03-27 | 2013-08-28 | 浙江顺豪电器有限公司 | Grounding clamp of switch cabinet |
| CN203300819U (en) * | 2013-05-23 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Insulating busbar bridge protecting grounding device |
| CN203367502U (en) * | 2013-07-02 | 2013-12-25 | 国家电网公司 | Wire grounding device |
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| Publication number | Publication date |
|---|---|
| CN103762517A (en) | 2014-04-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171208 Termination date: 20200103 |