CN104049154A - Sample reservation method for nuclear-power-station reactor control protection system cable - Google Patents
Sample reservation method for nuclear-power-station reactor control protection system cable Download PDFInfo
- Publication number
- CN104049154A CN104049154A CN201310075704.0A CN201310075704A CN104049154A CN 104049154 A CN104049154 A CN 104049154A CN 201310075704 A CN201310075704 A CN 201310075704A CN 104049154 A CN104049154 A CN 104049154A
- Authority
- CN
- China
- Prior art keywords
- sample
- cable
- protection system
- control protection
- reactor control
- 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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a sample reservation method for a nuclear-power-station reactor control protection system cable. The method includes the following steps: 1. checking and determining the specification and model of a sample cable; 2. determining an installation position, wherein the sample cable should be adjacent to an in-service cable of the same model in position, but mutual friction should be prevented; 3. laying the sample cable in the installation position straightly; 4. the sampling period being 2 years and the sampling length of each cable sample being 10cm and cutting an insulating wire core axially and pulling out a conductor and manufacturing an insulating-layer sample; 5. carrying out rubdown or bevelment on the sample and removing burrs of a reagent strip, the thickness of which is larger than 0.8mm and smaller than 2.0mm. The sample reservation method for the nuclear-power-station reactor control protection system cable is capable of obtaining a cable sample in an on-site typical environment and carrying out different kinds of tests on the sample so that representative data is obtained and through analysis of the data, the aging state and aging tendency of an in-service cable are evaluated.
Description
Technical field
The present invention relates to a kind of nuclear power plant reactor control protection system cable method that keeps sample, particularly relate to a kind of nuclear power plant reactor control protection system cable that is applied to the aging management of containment vessel inner cable method that keeps sample.
Background technology
Reactor control protection system cable and nuclear safety are closely related, and cable is installed in the cable cavern in containment vessel, are not easy to change even not replaceable within the phase in power station longevity.If there is cause electric property to lose efficacy because cable is aging, will cause reactor control protection system fault, the safe and stable operation of unit is brought and had a strong impact on.
Carrying out the aging management work of reactor control protection system cable needs a large amount of in-service cable sample, but the sample of in-service cable is difficult to obtain even and can not obtains.If there is the cable of keeping sample, just can regularly extract the cable that the keeps sample analysis of doing experiment, obtain in time cable status index parameter, can within the phase in cable longevity, carry out Efficient Evaluation to cable ageing state and aging tendency, judge whether cable occurs in advance aging, determine whether cable can lengthen the life, and the solution problem of aging of taking the necessary measures, the aging adverse effect that unit operation is produced of cable avoided.Therefore a kind of novel nuclear power plant reactor control protection system cable method that keeps sample that provides is provided badly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of collection for in-service cable status data and provides and facilitate feasible approach; improve the accuracy of cable status data; for providing basic data, aging management, the state estimation of cable from now on support, for the maintenance of cable, change and the application of lengthening the life provides the nuclear power plant reactor control protection system cable of reference and the suggestion method that keeps sample.
For solving the problems of the technologies described above, a kind of nuclear power plant reactor control of the present invention protection system cable method that keeps sample, comprises the following steps successively:
Step 1, check and confirm to keep sample the specifications and models of cable;
Step 2, definite position of laying; Keeping sample the position of cable should be adjacent with the in-service cable of same model, but avoids rubbing each other;
Step 3, the cable that will keep sample is straight unfolds in laying position;
Step 4, sample period are 2 years, and the sample length of each cable sample is 10cm, and insulated wire cores is axially cut, and extract conductor out, produce insulation course sample;
Step 5, sample is polished or scabbled, then remove the burr of examination bar, examination bar thickness is greater than 0.8mm, is less than 2.0mm.
The Cable Bending Radius that keeps sample is not less than 10 times of cable sizes that keep sample.
The cable length that keeps sample is 10 meters.
The present invention can obtain at the scene cable sample under typical environment, this sample is carried out to various tests (comprising destructive test), obtained representative data, by the analysis to these data, ageing state and aging tendency to in-service cable have been made assessment.Through qualification, the sample typical case that this scheme that keeps sample obtains, data are abundant and representative, can meet the assessment requirement of cable ageing state.
Embodiment
The present invention comprises the following steps successively:
Step 1, check and confirm to keep sample the specifications and models of cable;
Step 2, definite position of laying; Keeping sample the position of cable should be adjacent with the in-service cable of same model, but avoids rubbing each other;
Step 3, the cable that will keep sample is straight unfolds in laying position; The Cable Bending Radius that keeps sample is not less than 10 times of cable sizes that keep sample; The cable length that keeps sample is 10 meters;
Step 4, sample period are 2 years, do breaking elongation test at every turn and need 5 cable samples, and the sample length of each cable sample is 10cm, and insulated wire cores is axially cut, and extracts conductor out, produces insulation course sample;
Step 5, sample is polished or scabbled, then remove the burr of examination bar, examination bar thickness is greater than 0.8mm, is less than 2.0mm.
Claims (3)
1. the nuclear power plant reactor control protection system cable method that keeps sample, comprises the following steps successively:
Step 1, check and confirm to keep sample the specifications and models of cable;
Step 2, definite position of laying; Keeping sample the position of cable should be adjacent with the in-service cable of same model, but avoids rubbing each other;
Step 3, the cable that will keep sample is straight unfolds in laying position;
Step 4, sample period are 2 years, and the sample length of each cable sample is 10cm, and insulated wire cores is axially cut, and extract conductor out, produce insulation course sample;
Step 5, sample is polished or scabbled, then remove the burr of examination bar, examination bar thickness is greater than 0.8mm, is less than 2.0mm.
2. a kind of nuclear power plant reactor control protection system cable according to claim 1 method that keeps sample, is characterized in that: the Cable Bending Radius that keeps sample is not less than 10 times of cable sizes that keep sample.
3. a kind of nuclear power plant reactor control protection system cable according to claim 1 method that keeps sample, is characterized in that: the cable length that keeps sample is 10 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075704.0A CN104049154A (en) | 2013-03-11 | 2013-03-11 | Sample reservation method for nuclear-power-station reactor control protection system cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075704.0A CN104049154A (en) | 2013-03-11 | 2013-03-11 | Sample reservation method for nuclear-power-station reactor control protection system cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104049154A true CN104049154A (en) | 2014-09-17 |
Family
ID=51502247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310075704.0A Pending CN104049154A (en) | 2013-03-11 | 2013-03-11 | Sample reservation method for nuclear-power-station reactor control protection system cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104049154A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932221A (en) * | 2015-12-30 | 2017-07-07 | 核动力运行研究所 | A kind of cable for nuclear power station keeps sample device |
| CN109738225A (en) * | 2018-11-27 | 2019-05-10 | 福建福清核电有限公司 | A kind of npp safety shell concrete keeps sample method |
| CN110864977A (en) * | 2019-12-06 | 2020-03-06 | 芜湖航天特种电缆厂股份有限公司 | Low-temperature tensile test method for cable |
| CN111366824A (en) * | 2020-04-10 | 2020-07-03 | 国网浙江省电力有限公司电力科学研究院 | Aging sensor based on conductive composite material and manufacturing method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03179245A (en) * | 1989-12-07 | 1991-08-05 | Japan Atom Energy Res Inst | Diagnosis of aging of electric wire and cable |
| CN101470058A (en) * | 2007-12-27 | 2009-07-01 | 大连理工大学 | Method for evaluating residual service life of marine low-pressure rubber-insulated cable |
| CN101701842A (en) * | 2009-11-03 | 2010-05-05 | 杭州海康雷鸟信息技术有限公司 | Method and system for real-time monitoring of analog wire coated by ice of overhead power transmission line |
| CN101738554A (en) * | 2009-12-30 | 2010-06-16 | 天津塑力线缆集团有限公司 | Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging |
| CN101738572A (en) * | 2008-11-11 | 2010-06-16 | 上海久隆电力（集团）有限公司 | Method for testing service life of medium-voltage solid insulation power cable |
| CN102539310A (en) * | 2011-12-15 | 2012-07-04 | 广东工业大学 | Method for atmospheric exposure test for photovoltaic cable |
| CN102778638A (en) * | 2012-09-11 | 2012-11-14 | 中国电力科学研究院 | Method for judging aging state of cross linked polyethylene (XLPE) cable insulation water tree |
| 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 |
| CN102927884A (en) * | 2012-09-11 | 2013-02-13 | 湖南省电力公司科学研究院 | Method for determining scrapping of galvanized steel strands of power transmission line caused by atmospheric corrosion |
-
2013
- 2013-03-11 CN CN201310075704.0A patent/CN104049154A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03179245A (en) * | 1989-12-07 | 1991-08-05 | Japan Atom Energy Res Inst | Diagnosis of aging of electric wire and cable |
| CN101470058A (en) * | 2007-12-27 | 2009-07-01 | 大连理工大学 | Method for evaluating residual service life of marine low-pressure rubber-insulated cable |
| CN101738572A (en) * | 2008-11-11 | 2010-06-16 | 上海久隆电力（集团）有限公司 | Method for testing service life of medium-voltage solid insulation power cable |
| CN101701842A (en) * | 2009-11-03 | 2010-05-05 | 杭州海康雷鸟信息技术有限公司 | Method and system for real-time monitoring of analog wire coated by ice of overhead power transmission line |
| CN101738554A (en) * | 2009-12-30 | 2010-06-16 | 天津塑力线缆集团有限公司 | Cross-linked polyethylene insulated cable and method for testing cable insulation and sheath aging |
| CN102539310A (en) * | 2011-12-15 | 2012-07-04 | 广东工业大学 | Method for atmospheric exposure test for photovoltaic 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 |
| CN102778638A (en) * | 2012-09-11 | 2012-11-14 | 中国电力科学研究院 | Method for judging aging state of cross linked polyethylene (XLPE) cable insulation water tree |
| CN102927884A (en) * | 2012-09-11 | 2013-02-13 | 湖南省电力公司科学研究院 | Method for determining scrapping of galvanized steel strands of power transmission line caused by atmospheric corrosion |
Non-Patent Citations (1)
| Title |
|---|
| 麻芳义等: "核电站工程建设时期电缆老化管理的探讨", 《中国核科学技术进展报告》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932221A (en) * | 2015-12-30 | 2017-07-07 | 核动力运行研究所 | A kind of cable for nuclear power station keeps sample device |
| CN106932221B (en) * | 2015-12-30 | 2023-11-21 | 核动力运行研究所 | Cable sample reserving device for nuclear power station |
| CN109738225A (en) * | 2018-11-27 | 2019-05-10 | 福建福清核电有限公司 | A kind of npp safety shell concrete keeps sample method |
| CN110864977A (en) * | 2019-12-06 | 2020-03-06 | 芜湖航天特种电缆厂股份有限公司 | Low-temperature tensile test method for cable |
| CN111366824A (en) * | 2020-04-10 | 2020-07-03 | 国网浙江省电力有限公司电力科学研究院 | Aging sensor based on conductive composite material and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104569481B (en) | Buchholz relay oil stream flow velocity acquisition system and grave gas setting valve method of calibration | |
| CN103323707B (en) | Based on the transformer fault rate Forecasting Methodology of half Markov process | |
| CN102788932B (en) | A kind of discrimination method of transmission line thunderbolt fault | |
| CN103971024A (en) | Method for evaluating reliability of relaying protection systems under small sample failure data | |
| CN109474333B (en) | Electric power optical cable real-time monitoring protection system based on deep learning | |
| CN104049154A (en) | Sample reservation method for nuclear-power-station reactor control protection system cable | |
| CN104538233A (en) | State monitoring and early warning system and method for electric disconnecting link of transformer substation | |
| CN103296757A (en) | Multi-parameter identification based secondary system fault diagnosing method for intelligent substation | |
| CN103399241A (en) | Distribution transformer fault diagnosis system and method based on relation between temperature rise and load | |
| CN102759684A (en) | Device and method for detecting and locating defects in underground cables | |
| CN104463707A (en) | Fault-recording-based protection action information analyzing method | |
| CN105305640A (en) | Intelligent substation fault record protection motion information diagnosis method | |
| CN104460607A (en) | Production system graphic ticketing method based on simulated rehearsal | |
| CN105223293A (en) | Based on the transformer state method for early warning of oil chromatography on-line monitoring | |
| CN102721889A (en) | Detection method of early fault of cable based on complex wavelet singularity detection | |
| CN105069701A (en) | Monte Carlo method based risk evaluation method for power transmission system | |
| CN103675357B (en) | The method of anemoscope fault pre-alarming and system | |
| Honarmand et al. | Reliability modeling of process-oriented smart monitoring in the distribution systems | |
| CN103529337B (en) | The recognition methods of nonlinear correlation relation between equipment failure and electric quantity information | |
| KR101600698B1 (en) | System and Method for Predicting Life of Power Transformer | |
| CN106771474B (en) | A kind of power points temperature prediction and alarm method suitable for electric control system for drilling machine | |
| CN103389457B (en) | By determining that melt activation energy detects the method for fuse life | |
| CN103163402A (en) | Relaying protection equipment state monitoring device and monitoring method based on secondary circuit | |
| CN202041788U (en) | Detection system of GPS time synchronous device | |
| CN116840614A (en) | Cable line defect sensing and early warning method based on harmonic fluctuation characteristics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |
|
| WD01 | Invention patent application deemed withdrawn after publication |