CN205789242U - A kind of power cable semi-conductive layer resistivity test device - Google Patents
A kind of power cable semi-conductive layer resistivity test device Download PDFInfo
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- CN205789242U CN205789242U CN201620523256.5U CN201620523256U CN205789242U CN 205789242 U CN205789242 U CN 205789242U CN 201620523256 U CN201620523256 U CN 201620523256U CN 205789242 U CN205789242 U CN 205789242U
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- constant force
- pellet electrode
- force spring
- conductive layer
- power cable
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Abstract
A kind of power cable semi-conductive layer resistivity test device, including cylinder, constant force spring and pellet electrode, cylindrical sidewall is wound around and is provided with four constant force springs, and constant force spring one end is provided with pellet electrode.On cylindrical sidewall with 1/2nd position as zero graduation, it is provided with the first draw-in groove in the position of the upper and lower two ends of zero graduation 25mm, 50mm respectively, constant force spring is not provided with one end of pellet electrode and is provided with the first fixture block, and constant force spring inserts the first draw-in groove by the first fixture block and is fixed in cylindrical sidewall.Cylinder is provided with axial through hole.By using said structure, it is ensured that fitting tightly and contacting between spring with sample, and in cylinder through hole, intert the fixing post of a level, it is possible to make whole device unsettled, it is ensured that experimental result accurate；The equally distributed pit in pellet electrode surface can enable fixture and the pellet electrode compact siro spinning technology of experimental apparatus, it is ensured that the stability of connection.
Description
Technical field
This utility model relates to semi-conductive layer resistivity measurement field, particularly a kind of power cable semi-conductive layer resistivity test device.
Background technology
Along with development and the enlargement of cities of power industry scale, the relevant improvement project that aerial line transform power cable as is increasing.More and more for the relevant structure optimization of power cable, material property transformation research, the research of the semi-conductive layer such as improved about material property, concentrate to relax cable internal electric field, improve the distribution of insulating barrier surfaces externally and internally electric field stress, improve the electrical strength of cable, it is desirable to respectively added with one layer of semiconductive shielding layer between conductor wire core and insulating barrier, insulating barrier and metal screen layer.Chinese scholars research shows, controlling semiconductive shielding layer performance is to improve cable operation characteristic, the important technique measure of raising cable service life, and semi-conductive layer resistivity is one of them important indicator.Therefore, the correlation test research carrying out semi-conductive layer resistivity is significant, by analyzing semi-conductive layer resistivity test data, instructs semi-conductive layer optimization of material, improves cable operation characteristic, improves cable service life.
The measurement of existing semi-conductive layer resistivity generally uses simple iron wire colligation, it is impossible to ensureing contacting good between instrument and sample, and in test apparatus, sample, mould easily and instrument contact internal walls, easily cause the deviation of testing result equally.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of power cable semi-conductive layer resistivity test device, ensure various piece good contact, can effectively avoid systematic error, simultaneously its simple in construction simultaneously, easy for installation, greatly facilitate relevant staff and test.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of power cable semi-conductive layer resistivity test device, including cylinder, constant force spring and pellet electrode, cylindrical sidewall being wound around and is provided with four constant force springs, constant force spring one end is provided with pellet electrode.
Preferably in scheme, on described cylindrical sidewall with 1/2nd position as zero graduation, it is provided with the first draw-in groove in the position of the upper and lower two ends of zero graduation 25mm, 50mm respectively, constant force spring is not provided with one end of pellet electrode and is provided with the first fixture block, and constant force spring inserts the first draw-in groove by the first fixture block and is fixed in cylindrical sidewall.
Preferably in scheme, described pellet electrode is provided with the second fixture block, and constant force spring is provided with contiguous block on the one end being connected with pellet electrode, and contiguous block is provided with the second draw-in groove, inserts the second draw-in groove by the second fixture block and fix between pellet electrode and constant force spring.
Preferably in scheme, described cylinder is provided with axial through hole.
Preferably in scheme, described pellet electrode surface is provided with equally distributed pit.
This novel provided a kind of power cable semi-conductive layer resistivity test device, by using said structure, has the advantages that
(1) constant force spring is utilized to be fixed in cylindrical sidewall by sample, it is ensured that fitting tightly and contacting between spring with sample, it is to avoid because not reaching the experimental error that position is caused；
(2) when testing in instrument, by interting the fixing post of a level in cylinder through hole, it is possible to make the whole device unsettled, it is to avoid the experimental error that device causes with experimental apparatus contact internal walls；
(3) the equally distributed pit in pellet electrode surface can enable fixture and the pellet electrode compact siro spinning technology of experimental apparatus, it is ensured that the stability of connection.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is cylindrical structure schematic diagram of the present utility model.
Fig. 3 is constant force spring structural representation of the present utility model.
Fig. 4 is pellet electrode structural representation of the present utility model.
In figure: cylinder 1, constant force spring 2, pellet electrode 3, the first draw-in groove 101, through hole 102, contiguous block 201, the second draw-in groove 202, the first fixture block 203, the second fixture block 301.
Detailed description of the invention
In figure, a kind of power cable semi-conductive layer resistivity test device, including cylinder 1, constant force spring 2 and pellet electrode 3, it is characterized in that: being wound around on cylinder 1 sidewall and be provided with four constant force springs 2, constant force spring 2 one end is provided with pellet electrode 3.
Preferably in scheme, on the sidewall of described cylinder 1 with 1/2nd position as zero graduation, it is provided with the first draw-in groove 101 in the position of the upper and lower two ends of zero graduation 25mm, 50mm respectively, constant force spring 2 is not provided with one end of pellet electrode 3 and is provided with the first fixture block 203, and constant force spring 2 inserts the first draw-in groove 101 by the first fixture block 203 and is fixed on cylinder 1 sidewall.Use said structure, utilize constant force spring 2, it is possible to realize sample is fixed, ensure that simultaneously between spring with sample contact good.
Preferably in scheme, described pellet electrode 3 is provided with the second fixture block 301, constant force spring 2 is provided with contiguous block 201 on the one end being connected with pellet electrode 3, and contiguous block 201 is provided with the second draw-in groove 202, inserts the second draw-in groove 202 by the second fixture block 301 and fix between pellet electrode 3 and constant force spring 2.
Preferably in scheme, described cylinder 1 is provided with axial through hole 102.Set through hole 102, when device is in experimental apparatus, by fixing post through through hole, makes device be in vacant state, ensures that device does not comes in contact with experimental apparatus inwall with this, it is ensured that the accuracy of experimental result.
Preferably in scheme, described pellet electrode 3 surface is provided with equally distributed pit.Set pit, it is possible to enable fixture and the pellet electrode compact siro spinning technology of experimental apparatus, it is ensured that the stability of connection.
Use this most novel carry out testing specifically comprise the following steps that
By the cylinder of this mould before test, constant force spring, pellet electrode carries out assembling (such as Fig. 1), then tested sample is clamped on cylindrical body outer wall by constant force spring, four wiring fixtures of semi-conductive layer resistivity measurement instrument are clipped on the pellet electrode on the constant force spring on cylindrical body outer wall, then the cylinder being clamped sample is put into test apparatus, utilize the fixing post that level is set in device, fixing post is in vacant state through what the through hole on cylinder ensured pig capsule, mould is avoided to contact with instrument internal sample mounting table, it is configured finally by the externally measured button of measuring instrument, just semi-conductive layer resistivity can be measured.
Claims (5)
1. a power cable semi-conductive layer resistivity test device, including cylinder (1), constant force spring (2) and pellet electrode (3), it is characterized in that: being wound around on cylinder (1) sidewall and be provided with four constant force springs (2), constant force spring (2) one end is provided with pellet electrode (3).
A kind of power cable semi-conductive layer resistivity test device the most according to claim 1, it is characterized in that: on the sidewall of described cylinder (1) with 1/2nd position as zero graduation, it is provided with the first draw-in groove (101) in the position of the upper and lower two ends of zero graduation 25mm, 50mm respectively, constant force spring (2) is not provided with one end of pellet electrode (3) and is provided with the first fixture block (203), and constant force spring (2) inserts the first draw-in groove (101) by the first fixture block (203) and is fixed on cylinder (1) sidewall.
A kind of power cable semi-conductive layer resistivity test device the most according to claim 1, it is characterized in that: described pellet electrode (3) is provided with the second fixture block (301), constant force spring (2) is provided with contiguous block (201) on the one end being connected with pellet electrode (3), contiguous block (201) is provided with the second draw-in groove (202), inserts the second draw-in groove (202) by the second fixture block (301) and fix between pellet electrode (3) and constant force spring (2).
A kind of power cable semi-conductive layer resistivity test device the most according to claim 1, it is characterised in that: described cylinder (1) is provided with axial through hole (102).
A kind of power cable semi-conductive layer resistivity test device the most according to claim 1, it is characterised in that: described pellet electrode (3) surface is provided with equally distributed pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523256.5U CN205789242U (en) | 2016-06-01 | 2016-06-01 | A kind of power cable semi-conductive layer resistivity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523256.5U CN205789242U (en) | 2016-06-01 | 2016-06-01 | A kind of power cable semi-conductive layer resistivity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789242U true CN205789242U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523256.5U Expired - Fee Related CN205789242U (en) | 2016-06-01 | 2016-06-01 | A kind of power cable semi-conductive layer resistivity test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205789242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133056A (en) * | 2019-05-30 | 2019-08-16 | 浙江大学 | A kind of conductivity measurement system of highly conductive liquid |
| CN113625053A (en) * | 2021-07-07 | 2021-11-09 | 广东电网有限责任公司广州供电局 | Cable, cable insulation interface resistance measuring circuit, method and device |
-
2016
- 2016-06-01 CN CN201620523256.5U patent/CN205789242U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133056A (en) * | 2019-05-30 | 2019-08-16 | 浙江大学 | A kind of conductivity measurement system of highly conductive liquid |
| CN113625053A (en) * | 2021-07-07 | 2021-11-09 | 广东电网有限责任公司广州供电局 | Cable, cable insulation interface resistance measuring circuit, method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170601 |