CN105870865A - Secondary anchor tension device for high-voltage all-insulated overhead line terminal - Google Patents
Secondary anchor tension device for high-voltage all-insulated overhead line terminal Download PDFInfo
- Publication number
- CN105870865A CN105870865A CN201610181513.6A CN201610181513A CN105870865A CN 105870865 A CN105870865 A CN 105870865A CN 201610181513 A CN201610181513 A CN 201610181513A CN 105870865 A CN105870865 A CN 105870865A
- Authority
- CN
- China
- Prior art keywords
- strain insulator
- inner sleeve
- wire
- tapered
- overhead line
- Prior art date
- 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.)
- Pending
Links
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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
- H02G7/056—Dead-end clamps
Abstract
The invention discloses a secondary anchor tension device for a high-voltage all-insulated overhead line terminal. A tapered hole is formed in the middle part of a tension inner sleeve; a semi-conical wedge strip is arranged in the tapered hole of the tension inner sleeve; and a lacing outer sleeve is arranged outside an outer screw sleeve, so that the secondary anchor tension device has the characteristics that after the tensioned terminal insulating wire penetrates into the tapered hole in the middle part of the tension inner sleeve after a sheath layer is removed, the target that the semi-conical wedge strip can be reinserted into two side ends of a lead wire from which the sheath layer is removed can be achieved; and after the lacing outer sleeve is fastened to the outer screw sleeve, the tension can also be multiplied by the semi-conical wedge strip and the effect of fixing a heavy load by one point is achieved.
Description
Technical field
The present invention relates to high-tension overhead line, be directly related to high pressure all-insulated overhead line terminal secondary and anchor resistance to prop, especially
It is applicable to high pressure 10 kilovar all-insulated overhead line construction usage.
Background technology
Set up high pressure all-insulated overhead line circuit corner, continue and terminal be typically all use strain clamp for anchoring,
Strain clamp presses structure and the difference of mounting condition, generally can be divided into two classes.
The first kind: strain clamp wire to be born or whole pulling force of lightning conducter, grip of clamp is not less than mounted wire or keeps away
The specified stretching resistance of thunder line, this kind of wire clamp can also be pulled down after wire is installed, use separately.Such wire clamp has the resistance to bracing cable of screw bolt-type
Folder and wedge shape strain clamp etc..
Equations of The Second Kind: strain clamp is in addition to bearing whole pulling force of wire or lightning conducter, again as electric conductor.The most this kind of wire clamp
After once installing, cannot go dismounting again, be also called dead wire and press from both sides.Along with development and the needs of society of science and technology, existing
The newest High-Voltage Insulation wire rod comes out the most therewith, and the gold utensil being assigned in new high voltage insulated cable material is the most supporting.Now set up all insulation
Overhead transmission line terminal, corner, etc. the assorted golden tool of use generally use the strain insulator wedge type clamp of insulation reinforced plastics wedge core normal
For generally.
This strain insulator wedge type clamp has following characteristics: one, clamp is the casting of anti-oxidant high-strength aluminum alloy, simple installation.Two,
Reinforced plastics wedge core industrial frequency withstand voltage >=18kV, pressurize does not punctures for 1 minute.Three, it is not required to divest insulating barrier, leads to insulation aluminum heart yearn
With.
In Long-Time Service it has also been found that: though the existing assorted golden tool strain insulator wedge type clamp used is convenient and practical, but in whole confession
Electricity yarn system in also have the technical barrier do not captured by people: owing to being affected by naturally expanding with heat and contract with cold for a long time, clamp and
The insulated overhead conductor termination of strain insulator wedge type clamp wedge core easily can occur quality sex change, and after there is quality sex change, insulating barrier easily can go out
Now peeling, after there is decortication, wire easily outwards can delay sliding in the insulated cladding after quality sex change.The most more seriously: when
Outwards delay in wire insulated cladding after there is quality sex change after sliding, easily there will be span wire loose, after wire is loose
Easily can cause conducting wire end slip and land, the most easily there will be the generation of other unpredictable dangerous accident.
Now set up high pressure all-insulated overhead line circuit corner, continue and terminal be typically all use wedge shape strain clamp complete
Become strain insulator anchoring.In Long-Time Service it has also been found that: though the existing assorted golden tool strain insulator wedge type clamp used is convenient and practical, but
The whole nation whole power supply yarn system the most also has the technical barrier do not captured by people: wire insulation is subject to certainly due to long-term
So expand with heat and contract with cold impact in boundary, and clamping easily can occur quality sex change, generation quality with the wire insulation of strain insulator wedge type clamp wedge core
After sex change insulating barrier easily there will be become fragile, bark etc., occur becoming fragile, wire the most easily can be the slowest in insulated cladding after bark
Slow sliding, when in the wire insulated cladding from becoming fragile, after bark the most slow sliding after, easily there will be electric pole span wire loose.Special
The most more seriously: when after wire is the most loose again by blast quiver by force when being affected, be more easy to cause conducting wire end slip
With land, the most easily there will be the generation of other unpredictable dangerous accident.
Summary of the invention
Present invention aim to provide a kind of high pressure all-insulated overhead line terminal secondary to anchor resistance to prop, it can be effectively
Overcome: owing to being affected by naturally expanding with heat and contract with cold for a long time, clamp easy with the insulated overhead conductor termination of strain insulator wedge type clamp wedge core
Quality sex change can occur, and after there is quality sex change, insulating barrier easily there will be decortication, and after there is decortication, wire easily can be after quality sex change
Insulated cladding in outwards slow sliding.Especially the most more seriously: when outwards delaying in wire insulated cladding after there is quality sex change
After cunning, easily there will be span wire loose, after wire is loose, easily can cause conducting wire end slip and lands, the most easily can go out
The technical barrier that other unpredictable dangerous accident existing occurs.
The object of the present invention is achieved like this: the very heavy strain insulator of high pressure all-insulated overhead line terminal is mended and increased device, has in strain insulator
Overlapping and tighten overcoat, described strain insulator inner sleeve middle part arranges tapered eyelet, and strain insulator inner sleeve rear portion arranges outer silk braid cylinder, in strain insulator
Set coniform hole intraocular arranges the tapered spline of semicircle, and outer silk cartridge exterior arranges and tightens overcoat, tightens overcoat rearward end and arranges hexagonal and pull
Dynamic cap.
Due to the fact that have employed and arrange tapered eyelet in strain insulator inner sleeve middle part, strain insulator inner sleeve coniform hole intraocular arranges semicircle
Tapered spline, outer silk cartridge exterior arranges and tightens overcoat, and its feature is: the terminating insulation lead removal cortex after being tensioned
Penetrating to the tapered eyelet of strain insulator inner sleeve middle part, the tapered spline of semicircle can realize self can being inserted into removal again
Wire two side ends after cortex, when tightening overcoat silk braid cylinder outside after upper fastening, the tapered spline of semicircle also can realize doubling resistance to
The most solid very heavy effect of Zhang Xianxian.
Use the present invention, be fully solved: when after strain insulator wedge type clamp tensioning insulated overhead conductor, due to long-term by nature heat expansion
The impact of shrinkage, clamping easily can occur quality sex change with the insulated overhead conductor termination of strain insulator wedge type clamp wedge core, quality occurs
After sex change, insulating barrier easily there will be decortication, and after there is decortication, wire easily outwards can delay sliding in the insulated cladding after quality sex change, when
Outwards delay in wire insulated cladding after quality sex change after sliding, easily there will be span wire loose, time serious, be also more easy to meeting
Occur that wire lands, the most easily there will be the technical barrier that other unpredictable dangerous accident occurs.
Accompanying drawing explanation
Fig. 1 is strain insulator inner sleeve structural representation, and Fig. 2 is semicircle tapered spline structural representation, and Fig. 3 is to tighten jacket structure
Schematic diagram, accompanying drawing is the structure principle chart that high pressure all-insulated overhead line terminal secondary of the present invention anchors resistance to prop, below in conjunction with attached
The invention will be further described for figure.
Detailed description of the invention
Accompanying drawing shows that the structure of the present invention, strain insulator inner sleeve 1 middle part arrange tapered eyelet 2, and strain insulator inner sleeve 1 rear portion sets
Putting outer silk braid cylinder 3, arrange the tapered spline of semicircle 4 in the tapered eyelet of strain insulator inner sleeve 12, the outside setting of outer silk braid cylinder 3 tightens overcoat
5, tighten overcoat 5 rearward end and hexagonal is set pulls cap 6.
The assembling process of the present invention is: be first previously inserted tapered for Fig. 2 semicircle spline 4 to Fig. 1 strain insulator inner sleeve 1 pars intermedia
The tapered eyelet 2 of position, tightens Fig. 3 after overcoat 5 is threaded into the outer silk braid cylinder 3 of Fig. 1 more again and can complete annex assembling.
The process that makes of the present invention is: operating procedure one: (should be to use routine tightly to have the insulated conductor that will be tensioned operating personnel
Use after implementing complete tensioning), when after wire (sign) tensioning being tensioned, first from the strain insulator wedge type of tensioning insulated conductor
Wire clamp (sign) back root part exploitation peeling certain length, is inserted into Fig. 1 by the nude conducting wire end after exploitation peeling the most again
In tapered eyelet 2, after nude conducting wire end is inserted into Fig. 1 tapered eyelet 2 inside, then by tapered for Fig. 2 semicircle spline 4 again
It is inserted into nude conducting wire end two side ends within tapered eyelet 2 (use instrument by tapered for semicircle spline 4 to push-tight), when half
Pyramid type spline 4 held tight and nude conducting wire end two rear flank, tighten Fig. 3 overcoat 5 the most again and be threaded into Fig. 1 strain insulator again
On the outer silk braid cylinder 3 at inner sleeve 1 rear portion, after tightening overcoat 5 and being threaded on the outer silk braid cylinder 3 at Fig. 1 strain insulator inner sleeve 1 rear portion,
Re-using pulling tool firmly to turn Fig. 3 and tighten the hexagonal of overcoat 5 rearward end and pull cap 6, now, Fig. 3 tightens overcoat 5 i.e.
Tapered for Fig. 2 semicircle spline 4 is inwardly pushed up pressure again, when Fig. 3 tighten can complete after overcoat 5 fastens completely exploitation peeling after
Terminal nude wire time anchoring.
Claims (1)
1. the very heavy strain insulator of high pressure all-insulated overhead line terminal is mended and is increased device, has strain insulator inner sleeve (1) and tightens overcoat (5), its feature
It is: described strain insulator inner sleeve (1) middle part arranges tapered eyelet (2), and strain insulator inner sleeve (1) rear portion arranges outer silk braid cylinder (3),
Arranging the tapered spline of semicircle (4) in strain insulator inner sleeve (1) tapered eyelet (2), the outside setting of outer silk braid cylinder (3) tightens overcoat (5),
Tighten overcoat (5) rearward end to arrange hexagonal and pull cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181513.6A CN105870865A (en) | 2016-03-18 | 2016-03-18 | Secondary anchor tension device for high-voltage all-insulated overhead line terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181513.6A CN105870865A (en) | 2016-03-18 | 2016-03-18 | Secondary anchor tension device for high-voltage all-insulated overhead line terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105870865A true CN105870865A (en) | 2016-08-17 |
Family
ID=56626045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610181513.6A Pending CN105870865A (en) | 2016-03-18 | 2016-03-18 | Secondary anchor tension device for high-voltage all-insulated overhead line terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105870865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786281A (en) * | 2017-01-13 | 2017-05-31 | 国网福建省电力有限公司 | Strain insulator pressure connecting pipe for lead wire means of defence |
-
2016
- 2016-03-18 CN CN201610181513.6A patent/CN105870865A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786281A (en) * | 2017-01-13 | 2017-05-31 | 国网福建省电力有限公司 | Strain insulator pressure connecting pipe for lead wire means of defence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |