CN101738554A - Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging - Google Patents
Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging Download PDFInfo
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- CN101738554A CN101738554A CN200910245212A CN200910245212A CN101738554A CN 101738554 A CN101738554 A CN 101738554A CN 200910245212 A CN200910245212 A CN 200910245212A CN 200910245212 A CN200910245212 A CN 200910245212A CN 101738554 A CN101738554 A CN 101738554A
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Abstract
The invention relates to a cross-linked polyethylene insulated cable and a method for testing cable insulation and sheath aging, which belong to the technical field of cables. The cross-linked polyethylene insulated cable meets the national standard GB/T2951.12 to 2008, and the method for testing the cable insulation and the sheath aging is a universal method for performing a cable insulation and thermal ageing test. The method is characterized in that: the thickness of an adopted test strip is 1.00+/0.05 mm in test preparation and treatment processes; only two dumbbell test pieces can be cut on each test strip, one dumbbell test piece is used before the aging, and the other one is used after the aging; and a mark is made for improving the comparability of the aging test data. The method improves the accuracy and credibility of the ultimate test data, improves the quality of the cable and prolongs the service life of the cable. The method has the advantages of simplicity, convenient operation, economical practicality, time and labor conservation, simplicity and convenience, accurate data and high detection reliability, high reliability and the like.
Description
Technical field
The invention belongs to the cable technology field, particularly relate to insulation of a kind of cross-linked polyethylene insulated cable and optical cable and sheath aging testing method.
Background technology
At present, the power cable with cross-linked polyethylene insulation insulated wire cores is in production run, because cooling velocity is too fast, the unrelieved stress that in insulation course, produces, remaining very big to its insulating property influence, if unrelieved stress is excessive in the insulation course, can cause insulation layering when cable moves, thereby cause insulation breakdown, influence the serviceable life of cable.Detection by mechanical property rate of change before and after the insulation ag(e)ing can, grasp the size of the unrelieved stress in the insulation course.And existing GB/T2951.12-2008 cable and optical cable insulation and general test method the 12nd part of sheath material: general test method-thermal aging test method, comparatively loose in test test sample preparation and processing procedure.Often a sample is sent to different electric wire testing agencies, and is different in test preparation and processing procedure owing to detect the problem of gimmick, causes the gained data deviation bigger.
Summary of the invention
The present invention provides a kind of cross-linked polyethylene insulated cable and optical cable insulation and sheath aging testing method for solving the technical matters that exists in the known technology.
The purpose of this invention is to provide that a kind of to have method simple, easy to operate, economical and practical, time saving and energy saving, simple and easy to do, data are accurate, the cross-linked polyethylene insulated cable of characteristics such as detecting reliability and credible degree height and optical cable insulation and sheath aging testing method.
The present invention is in conjunction with existing GB/T2951.12-2008 cable and optical cable insulation and general test method the 12nd part of sheath material: general test method-thermal aging test method, at insulation ag(e)ing test in GB/T12706-2008 and the GB/T11017-2002 standard, innovation to some detailed problems of test preparation and processing procedure and process of the test, thereby improved final test figure accuracy and credible, for crosslinked polyethylene electrical isolation cable improves technology in process of production, promote the quality of cable, prolong the serviceable life of cable.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
Cross-linked polyethylene insulated cable and optical cable insulation and sheath aging testing method, adopt insulation of standard GB/T2951.12-2008 cable and optical cable and the general test method of sheath material to carry out the cable insulation thermal aging test, be characterized in: in test preparation and the processing procedure, the strip thickness of employing is 1.00 ± 0.05mm; Can only cut two dumbbell test pieces on each strip, one be used for aging before, one be used for aging after, and carry out mark, improve the comparability of aging test data.
The present invention can also adopt following technical scheme:
Described cross-linked polyethylene insulated cable and optical cable insulation and sheath aging testing method, be characterized in: aging test is by same personnel operation, use, and is being tested aging and unaged test specimen on same the machine in same laboratory on the same day with a kind of method of testing.
Advantage and good effect that the present invention has are:
Cross-linked polyethylene insulated cable and optical cable insulation and sheath aging testing method, owing to adopted brand-new technology scheme of the present invention, compared with prior art, the present invention improved final test figure accuracy and credible, can make crosslinked polyethylene electrical isolation cable improve technology in process of production, promote the quality of cable, prolong the serviceable life of cable.It is simple, easy to operate, economical and practical, time saving and energy saving that the present invention has method, simple and easy to do, and data are accurate, detecting reliability and credible degree advantages of higher.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, be described in detail as follows:
Embodiment 1
Cross-linked polyethylene insulated cable and optical cable insulation and sheath aging testing method, adopt insulation of standard GB/T2951.12-2008 cable and optical cable and the general test method of sheath material to carry out the cable insulation thermal aging test, be characterized in: in test preparation and the processing procedure, the strip thickness of employing is 1.00 ± 0.05mm; Can only cut two dumbbell test pieces on each strip, one be used for aging before, one be used for aging after, and carry out mark, improve the comparability of aging test data.
Cross-linked polyethylene insulated cable and optical cable insulation and sheath aging test are used with a kind of method of testing by same personnel operation, on same the machine in same laboratory, and on the same day aging and unaged test specimen are being tested.
Specific implementation process of the present invention:
Insulation of present embodiment GB/T2951.12-2008 cable and optical cable and general test method the 12nd part of sheath material: general test method-thermal aging test method, 1) require strip thickness should be not less than 0.8mm in the primary standard, be not more than 2.0mm.The strip thickness that requires gained in the innovation is must be between 1.00 ± 0.05mm.Because if the strip thickness deviation is bigger, the tensile strength and the breaking elongation data dispersiveness that can cause testing before and after aging are bigger.2) the innovation requires can only to cut two dumbbell test pieces on each strip of gained, one be used for aging before, one be used for aging after, and carry out mark, thereby improve the comparability of data.3) in the primary standard test is recommended by same operating personnel, used, on same the machine in same laboratory, aging and unaged test specimen are tested with a kind of method of testing.The innovation has been strict with test and must have been used with a kind of method of testing by same operating personnel, on same the machine in same laboratory, and on the same day aging and unaged test specimen is being tested.Thereby increase the reliability of test.Again in conjunction with GB/T2951.12-2008, insulation ag(e)ing is tested in to GB/T12706-2008 and GB/T11017-2002 standard according to above-mentioned novelty test method, and the test findings deviation of gained is comparatively little, and reliability increases.Thereby grasped the STRESS VARIATION of crosslinking insulated cable insulation course timely,, promoted the cable quality, accurate believable data are provided for manufacturing enterprise improves manufacturing process.
Claims (2)
1. cross-linked polyethylene insulated cable and optical cable insulate and the sheath aging testing method, adopt insulation of standard GB/T2951.12-2008 cable and optical cable and the general test method of sheath material to carry out the cable insulation thermal aging test, it is characterized in that: in test preparation and the processing procedure, the strip thickness of employing is 1.00 ± 0.05mm; Can only cut two dumbbell test pieces on each strip, one be used for aging before, one be used for aging after, and carry out mark, improve the comparability of aging test data.
2. cross-linked polyethylene insulated cable according to claim 1 and optical cable insulation and sheath aging testing method, it is characterized in that: aging test is by same personnel operation, use is with a kind of method of testing, on same the machine in same laboratory, and on the same day aging and unaged test specimen are being tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910245212A CN101738554A (en) | 2009-12-30 | 2009-12-30 | Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910245212A CN101738554A (en) | 2009-12-30 | 2009-12-30 | Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging |
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| CN101738554A true CN101738554A (en) | 2010-06-16 |
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| CN200910245212A Pending CN101738554A (en) | 2009-12-30 | 2009-12-30 | Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735970A (en) * | 2012-06-15 | 2012-10-17 | 安徽中兴继远信息技术股份有限公司 | Insulation monitoring and life prediction method of cross linked polyethylene cable |
| CN102830309A (en) * | 2012-08-24 | 2012-12-19 | 华南理工大学 | Testing method for aging factor of 110 kV cross-linked cable |
| CN103308831A (en) * | 2013-05-31 | 2013-09-18 | 国家电网公司 | Crosslinked polyethylene cable water-resistant tree performance rapid detection method based on power-frequency voltage withstanding method |
| CN104049154A (en) * | 2013-03-11 | 2014-09-17 | 江苏核电有限公司 | Sample reservation method for nuclear-power-station reactor control protection system cable |
| CN104459486A (en) * | 2014-11-25 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | Method for evaluating insulation of crosslinked polyethylene medium-voltage cable through polarization current |
| CN104793111A (en) * | 2015-03-31 | 2015-07-22 | 华南理工大学 | Insulating cable residual service life comprehensive evaluation method based on physical, chemical and electric properties |
| CN107505255A (en) * | 2017-07-28 | 2017-12-22 | 深圳市宏商材料科技股份有限公司 | A kind of preprocess method of heat-shrink tube and its application |
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
-
2009
- 2009-12-30 CN CN200910245212A patent/CN101738554A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735970A (en) * | 2012-06-15 | 2012-10-17 | 安徽中兴继远信息技术股份有限公司 | Insulation monitoring and life prediction method of cross linked polyethylene cable |
| CN102735970B (en) * | 2012-06-15 | 2014-06-25 | 安徽中兴继远信息技术股份有限公司 | Insulation monitoring and life prediction method of cross linked polyethylene cable |
| CN102830309A (en) * | 2012-08-24 | 2012-12-19 | 华南理工大学 | Testing method for aging factor of 110 kV cross-linked cable |
| CN104049154A (en) * | 2013-03-11 | 2014-09-17 | 江苏核电有限公司 | Sample reservation method for nuclear-power-station reactor control protection system cable |
| CN103308831A (en) * | 2013-05-31 | 2013-09-18 | 国家电网公司 | Crosslinked polyethylene cable water-resistant tree performance rapid detection method based on power-frequency voltage withstanding method |
| CN104459486A (en) * | 2014-11-25 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | Method for evaluating insulation of crosslinked polyethylene medium-voltage cable through polarization current |
| CN104793111A (en) * | 2015-03-31 | 2015-07-22 | 华南理工大学 | Insulating cable residual service life comprehensive evaluation method based on physical, chemical and electric properties |
| CN104793111B (en) * | 2015-03-31 | 2017-11-07 | 华南理工大学 | Based on reason, change, the insulated cable residual life comprehensive estimation methods of electrical characteristics |
| CN107505255A (en) * | 2017-07-28 | 2017-12-22 | 深圳市宏商材料科技股份有限公司 | A kind of preprocess method of heat-shrink tube and its application |
| CN109323897A (en) * | 2018-09-27 | 2019-02-12 | 安徽滁州德威新材料有限公司 | A kind of CABLE MATERIALS 1024 test piece of antioxidant and its assessment experimental method |
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Open date: 20100616 |