CN101382579B - Detection device for quality of rubber stress cone of high-pressure cross-linking cable - Google Patents
Detection device for quality of rubber stress cone of high-pressure cross-linking cable Download PDFInfo
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- CN101382579B CN101382579B CN2008100438839A CN200810043883A CN101382579B CN 101382579 B CN101382579 B CN 101382579B CN 2008100438839 A CN2008100438839 A CN 2008100438839A CN 200810043883 A CN200810043883 A CN 200810043883A CN 101382579 B CN101382579 B CN 101382579B
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- stress cone
- cable
- rubber stress
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- cylindrical shell
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Abstract
The invention discloses a quality detection device of a high-voltage cross-linked cable rubber stress cone, which comprises a testware, a testware live end a testware measuring end. The invention is characterized in that: the testware is the rubber stress cone (6), the testware measuring end is a sealed cylindrical shell, the rubber stress cone (6) which is sheathed on a test cable (12) in series is arranged at the center of the sealed cylindrical shell, an epoxy sleeve is arranged outside the test cable (12) and the rubber stress cone (6), and a cavity evacuation port (9) is arranged; a cavity between the epoxy sleeve and the rubber stress cone is subject to evacuation and filled with pressure SF6 gas or N2, the sealed cylindrical shell is formed by the epoxy sleeve (7) and a housing cylindrical shell (1), and a housing evacuation port (5) is arranged; the housing is subject to evacuation and filled with pressure SF6 gas or N2, one end the test cable (12) extending out from the sealed cylindrical shell is connected with a basic cable (11) which is used as the testware live end. The quality detection device greatly shortens the detection time and can ensure the accuracy and reliability of the test.
Description
Technical field
The present invention relates to a kind of high-pressure cross-linking cable delivery test device, particularly disclose a kind of detection device for quality of rubber stress cone of high-pressure cross-linking cable, be applicable to that 110kV and above electric pressure high-pressure cross-linking cable Primary Component detect fast as the glue stress cone.
Background technology
The puncture of insulating material is often begun by the discharge at local defect place, and organic material is easy to deterioration under long-term shelf depreciation effect.Therefore the shelf depreciation measurement in the insulating material is become one of important method of insulation inherent vice check.At present adopt import equipment to carry out the test of shelf depreciation mostly at cable industry, be mainly used in shelf depreciation, the voltage-withstand test of high-tension cable, the application of this testing apparatus is very ripe.And the key components that is used for HV cable accessories all will carry out the factory inspection test according to standard-required, at 1.5U
0Under measure shelf depreciation, and to carry out 2.5U
00.5 hour withstand voltage test.How to carry out these tests two kinds of methods are arranged usually, a kind of employing simulation test, under rubber stress cone and above-mentioned trial voltage, have under the same electric field intensity situation, in addition low voltage is carried out above-mentioned shelf depreciation and withstand voltage delivery test, and another kind is to apply to carry out shelf depreciation test and withstand voltage test under the regulation high pressure.The former uses less, and what the latter was more is that rubber stress cone is enclosed within on the cable, in the sealing load cylindrical shell, fills with SF
6Gas or N
2Gas applies assigned voltage at the other end and tests (seeing accompanying drawing 1).Though this method is easy, but the pumpdown time is oversize, each sample is wanted 3～3.5 hours too approximately from being installed to the off-test time, and this method cable should vertically be placed usually, the inconvenience horizontal positioned, because horizontal positioned cable deflection causes puncture easily, the vertical placement brought work high above the ground, give rise to trouble easily, increase the framing scaffold and the danger of easily falling.How to improve installation capability, improve test efficiency, shorten the test period, proposed a new problem to the scientific worker.
Summary of the invention
Quality inspection exists drawback and defective to rubber stress cone of high-pressure cross-linking cable to the objective of the invention is to change prior art, a kind of detection device for quality of rubber stress cone of high-pressure cross-linking cable is disclosed, realize fast simple installation, improve rubber stress cone check test efficient, shorten the test period, hold cable core with epoxy bushing, avoid the sagging off-centre that causes of cable when ground level is installed.
The present invention is achieved in that a kind of detection device for quality of rubber stress cone of high-pressure cross-linking cable, comprise test block, test block live end and test block measuring junction, it is characterized in that: described test block is a rubber stress cone 6, the test block measuring junction is the closed type cylindrical shell, string cover rubber stress cone 6 occupy closed type cylindrical shell center on the test cable 12, outside test cable 12 and the rubber stress cone 6 epoxy bushing is arranged, and establish cavity vacuum orifice 9, cavity between epoxy bushing and rubber stress cone is vacuumized and fill with pressure SF
6Gas or N
2Gas, epoxy bushing 7 is formed the closed type cylindrical shell with casing cylinder 1, and establishes shell vacuum orifice 5, shell is vacuumized and fills with pressure SF
6Gas or N
2The end that gas, test cable 12 stretch out the closed type cylindrical shell connects basic cable 11, and basic cable 11 is made the test block live end.Described test cable 12 seals rubber stress cone and 7 cavitys of epoxy bushing with outlet bar 4 and shielding cap 3 at an end of closed type cylindrical shell, and described rubber stress cone 6 endoporus apertures and test cable 12 lines directly mate.It is 0.2～0.6MPa that described cavity and shell vacuumize the back charge pressure.Described closed type cylindrical shell and test block live end all bearing on the rack wheel car 2 that contour and moveable convenient detects.
The invention has the beneficial effects as follows: apparatus of the present invention can be used under the intact situation of cable for a long time, and the installation of counter stress awl is also very convenient, and the time of detection can shorten greatly, reaches the effect of fast detecting.Apparatus of the present invention are not influenced by external factor, can guarantee the accuracy and the reliability of testing.
Description of drawings
Fig. 1 is a prior art detection device for quality of rubber stress cone of high-pressure cross-linking cable structural drawing;
Fig. 2 is a detection device for quality of rubber stress cone of high-pressure cross-linking cable structural drawing of the present invention.
Embodiment
With reference to the accompanying drawings 2, a kind of detection device for quality of rubber stress cone of high-pressure cross-linking cable comprises test block, test block live end and test block measuring junction.Test block is a rubber stress cone 6, and the test block measuring junction is the closed type cylindrical shell.
Epoxy bushing 7, high-tension shielding cap 3 are installed together in advance, and overlap with casing cylinder, epoxy bushing 7 is formed the closed type cylindrical shell with casing cylinder 1, and establishes shell vacuum orifice 5, with shell be evacuated down to be lower than 6.67Pa (0.05mmHg) after, fill with 0.2～0.6MPa pressure SF
6Gas or N
2Gas, and keep certain pressure.String cover rubber stress cone 6 occupy closed type cylindrical shell center on the test cable 12, outside test cable 12 and the rubber stress cone 6 epoxy bushing is arranged, and establish cavity vacuum orifice 9, cavity between epoxy bushing and rubber stress cone is evacuated down to 6.67Pa (0.05mmHg) after, fill with 0.2～0.6MPa pressure SF
6Gas or N
2Gas, and keep 0.2～0.6MPa pressure, can carry out rubber stress cone and detect.
The end that test cable 12 stretches out the closed type cylindrical shell connects basic cable 11, and basic cable 11 is made the test block live end.Test cable 12 seals rubber stress cone and 7 cavitys of epoxy bushing with outlet bar 4 and shielding cap 3 at an end of closed type cylindrical shell, and the outlet bar is connected with the high-tension shielding cap, and rubber stress cone 6 endoporus apertures and test cable 12 lines directly mate.Hold the measuring junction closed type cylindrical shell of rubber stress cone 6 and the basic cable 11 of live end all bearing on contour and rack wheel car 2 that moveable convenient detects.
Adopt apparatus of the present invention, rubber stress cone is installed delivery test than only adopting the detection of casing cylinder can shorten 1 hour in the prior art (seeing accompanying drawing 1).Owing to adopt epoxy bushing, make cable in casing cylinder, be in the center, even horizontal positioned can be offset high-tension shielding owing to cable is sagging yet in cylindrical shell, prevent from detection, to produce breakdown accident.
Claims (3)
1. detection device for quality of rubber stress cone of high-pressure cross-linking cable, comprise test block, test block live end and test block measuring junction, it is characterized in that: described test block is rubber stress cone (6), the test block measuring junction is the closed type cylindrical shell, test cable (12) is gone up string cover rubber stress cone (6) and is occupy closed type cylindrical shell center, epoxy bushing is arranged outside test cable (12) and the rubber stress cone (6), and establish cavity vacuum orifice (9), cavity between epoxy bushing and rubber stress cone is vacuumized and fill with pressure SF
6Gas or N
2Gas, epoxy bushing (7) and casing cylinder (1) are formed the closed type cylindrical shell, and establish shell vacuum orifice (5), shell is vacuumized and fill with pressure SF
6Gas or N
2The end that gas, test cable (12) stretch out the closed type cylindrical shell connects basic cable (11), and basic cable (11) is made the test block live end; Described test cable (12) an end of closed type cylindrical shell with outlet bar (4) and shielding cap (3) with rubber stress cone and epoxy bushing (7) between cavity seal, described rubber stress cone (6) endoporus aperture and test cable (12) line directly mate.
2. detection device for quality of rubber stress cone of high-pressure cross-linking cable according to claim 1 is characterized in that: it is 0.2～0.6MPa that described cavity and shell vacuumize the back charge pressure.
3. detection device for quality of rubber stress cone of high-pressure cross-linking cable according to claim 1 is characterized in that: described closed type cylindrical shell and test block live end all bearing on the rack wheel car (2) that contour and moveable convenient detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100438839A CN101382579B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone of high-pressure cross-linking cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100438839A CN101382579B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone of high-pressure cross-linking cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101382579A CN101382579A (en) | 2009-03-11 |
| CN101382579B true CN101382579B (en) | 2011-04-20 |
Family
ID=40462526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100438839A Active CN101382579B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone of high-pressure cross-linking cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101382579B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609102B (en) * | 2009-07-13 | 2011-08-31 | 上海三原电缆附件有限公司 | Power frequency withstand voltage and partial discharge test terminal structure of medium-low voltage crosslinked cable |
| CN105116310A (en) * | 2015-08-27 | 2015-12-02 | 江苏普朗克电力科技有限公司 | Novel high voltage cable test device |
| CN105259440A (en) * | 2015-10-21 | 2016-01-20 | 中国电力科学研究院 | DC cable test terminal |
| CN109347052B (en) * | 2018-12-10 | 2023-09-19 | 重庆科技学院 | High-pressure-resistant one-hole multi-line sealing structure |
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2008
- 2008-10-28 CN CN2008100438839A patent/CN101382579B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101382579A (en) | 2009-03-11 |
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