CN102252787A - Method for measuring pressure of insulation interface of cable terminal - Google Patents
Method for measuring pressure of insulation interface of cable terminal Download PDFInfo
- Publication number
- CN102252787A CN102252787A CN 201110178313 CN201110178313A CN102252787A CN 102252787 A CN102252787 A CN 102252787A CN 201110178313 CN201110178313 CN 201110178313 CN 201110178313 A CN201110178313 A CN 201110178313A CN 102252787 A CN102252787 A CN 102252787A
- Authority
- CN
- China
- Prior art keywords
- pressure
- stress cone
- cable termination
- strain
- cable
- 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
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The invention provides a method for measuring the pressure of the insulation interface of a cable terminal. The invention adopts a method combining on-site measurement and numerical simulation; the spring stress of a spring compression device at the high-voltage cable terminal is directly measured on site to achieve the aim of indirectly measuring the axial pressure of the stress cone, according to the stress relationship of a rubber stress cone and the spring compression device at the high-voltage cable terminal; and an overall numerical simulation model of the high-voltage cable terminal is established, the reliability of the simulation model is checked according to the axial pressure of the rubber stress cone, and finally the distribution and change law of the insulation interface of the cable terminal are calculated according to the numerical simulation of the mechanical-electric thermal load condition. The method can be used to avoid the problem that the interface pressure can not be measured directly owning to the structure of the high-voltage cable terminal. The method is characterized by reliability, effectiveness and convenience.
Description
Technical field
The invention belongs to the high-voltage fence technical field of measurement and test, can measure the distribution and the Changing Pattern of hv cable termination insulator interface pressure accurately and reliably.
Background technology
Electrical network belongs to the intermediate link of carrying and distributing electric energy, and it is mainly formed by connecting power transmission sequence into the net, electric substation, distribution substation and distribution line.China's electrical network mainly is based on high pressure and UHV (ultra-high voltage) transmission line of alternation current at present,
,
Ac grid system is the key electrical network of present China.
In the electrical network ingredient, transmission system is being born the task of electric power being transported and being assigned to each electricity consumption department, and its operation to electric system also has the greatest impact.Transmission system mainly is made up of cable, cable accessory and circuit structures three parts.Cable accessory is meant parts of other except that cable body and equipment in the cable line, comprises cable termination and cable splice.The probability of electric power system fault generation in the past shows that the fault that cable accessory takes place accounts for the over half of cable operation troubles.Cable termination is the important component part in the power transmission and distribution system.But because this body structure of cable termination, making and be connected and the complicacy of service condition, terminal fault always can not be avoided.Hv cable termination is the cable accessory that is connected with high-voltage fence or other electrical equipment in order to high-tension cable, be installed in the power network line end, in whole power network line, play the vital role of carrying switching, therefore become the key link that guarantees the operation of high-voltage fence line security.
The tight ness rating of cable termination internals contact interface is very important to cable termination interface stability and reliability, and it will directly influence the insulation characterisitic of cable termination, as shelf depreciation, instantaneous breakdown intensity and index such as disruptive strength when long.The prefabricated stress cone type hv cable termination of widespread use rubber in the engineering, by the prefabricated stress cone of rubber, the copper holder, epoxy resin bushing, base, insulator, top cover, canopy, the outlet bar, cable insulation and cable core are formed, its technical characterstic is that prefabricated stress cone of rubber and epoxy resin bushing work as insulation enhancing element and electric stress control element jointly, adopt spring attachment that the prefabricated stress cone of rubber is exerted pressure simultaneously, the prefabricated stress cone of rubber is withstood on the epoxy resin bushing inboard, thereby make prefabricated stress cone of rubber and epoxy resin bushing, interface between the cable insulation closely contacts, and keep reliably and with long-term interfacial pressure, increase the reliability of cable termination.
The prefabricated stress cone of rubber is the critical component of hv cable termination, should closely contact between prefabricated stress cone of rubber and epoxy resin bushing, the cable insulation, and keep certain interfacial stress, the size of interfacial stress and distribution situation directly have influence on the Electric Field Distribution of cable termination, directly have influence on the cable termination electric property.The cable termination breakdown field strength increases with the increase of interfacial stress, and the disruptive strength of terminal reaches capacity after interfacial stress arrives to a certain degree.The place that interfacial stress is different, breakdown field strength are also different.Before reaching capacity, place, breakdown field strength that interfacial stress is more little are also more little, and when interfacial stress is inhomogeneous, make the terminal non-uniform electric electric field concentration phenomenon to occur that the end face that some interfacial stress is little may be by electric field breakdown.Therefore, understanding and grasping the size of hv cable termination interfacial pressure and distribution is crucial to stability and the reliability that guarantees cable termination.
But because hv cable termination is a labyrinth that is made of multiple material parts, and structure is tight, cause directly measuring insulator interface pressure, particularly the insulator interface pressure in installation process and the operational process is very difficult, still there is not the ripe effectively measuring method of a cover at present, therefore, it is very necessary having the method for measuring insulator interface pressure in hv cable termination installation and the operational process.
Summary of the invention
In order to overcome the difficulty of direct measurement cable terminal insulation interfacial pressure, the invention provides a kind of method of measuring the cable terminal insulation interfacial pressure, this is a kind of method of indirect measurement interfacial pressure.This method adopts on-the-spot actual measurement to combine with numerical simulation, finally calculates hv cable termination insulator interface pressure by Finite Element Method.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method of measuring the cable terminal insulation interfacial pressure, the method that adopts in-site measurement and numerical simulation to combine, directly measure the spring strain of hv cable termination spring attachment by the scene, according to the stressed relation of hv cable termination rubber stress cone and spring attachment, reach and measure stress cone axle pressure purpose indirectly; Set up the whole numerical simulator of hv cable termination, check the analogy model reliability, go out the distribution and the Changing Pattern of cable terminal insulation interfacial pressure at last according to power electric heating load-up condition numerical simulation calculation according to the rubber stress cone axle pressure.
Install under the operating mode initial, described in-site measurement spring strain concrete steps are as follows:
1) the static number electric wire strain gauge is installed;
2) foil gauge is connected to the static number electric wire strain gauge with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished statical strain indicator is demarcated;
When 4) tightening the spring inner bolt and nut, carry out data collection task;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, the axle pressure that rubber stress cone is subjected under the operating mode initially is installed.
Under operating condition, described in-site measurement strain concrete steps are as follows:
1) the dynamic strain tester is installed;
2) foil gauge is connected to the dynamic strain tester with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished the dynamic strain test macro is carried out balance and zero clearing;
4) cable termination of every kind of voltage operating mode is identical with data acquisition time working time;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, obtain the axle pressure that rubber stress cone is subjected under the operating condition.
Above-mentioned method for numerical simulation is a Finite Element Method, and its concrete steps are as follows:
1), sets up the whole nonlinear Finite Element Method Simulation model of hv cable termination according to hv cable termination practical structures size;
2) according to the rubber stress cone axle pressure result who measures indirectly, the reliability of checking finite element model;
3) apply power electric heating load-up condition and carry out the nonlinear Finite Element Numerical analog computation, obtain the distribution and the Changing Pattern of hv cable termination insulator interface pressure.
The invention has the beneficial effects as follows, the method that adopts in-site measurement and numerical simulation to combine, utilize the on-the-spot test laboratory facilities of simple possible to measure, obtain net result by numerical evaluation, thereby the difficult problem that can't directly measure interfacial pressure of having avoided the hv cable termination structure to be determined, this method have reliably, effectively, characteristics easily.
Description of drawings
Fig. 1 is hv cable termination stress cone part-structure figure of the present invention.
Fig. 2 is the operational flowchart of the inventive method.
Fig. 3 is the whole numerical simulator of cable termination of the present invention.
Fig. 4 is an interfacial pressure distribution curve between the hv cable termination stress cone that calculates and the cable insulation.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
A kind of method of measuring the cable terminal insulation interfacial pressure, the method that adopts in-site measurement and numerical simulation to combine, directly measure the spring strain of hv cable termination spring attachment by the scene, according to the stressed relation of hv cable termination rubber stress cone and spring attachment, reach and measure stress cone axle pressure purpose indirectly; Set up the whole numerical simulator of hv cable termination, check the analogy model reliability, go out the distribution and the Changing Pattern of cable terminal insulation interfacial pressure at last according to power electric heating load-up condition numerical simulation calculation according to the rubber stress cone axle pressure.
As shown in Figure 1, the hv cable termination stress cone comprises insulating oil 1, epoxy resin bushing 2, the prefabricated stress cone 3 of rubber, magnetosheath 4, screen layer 5 and spring supporting device 6.On spring supporting device 6, paste foil gauge, utilize dynamic and static strainmeter to measure spring strain in the installation and operation process respectively.
As shown in Figure 2, install under the operating mode initial, described in-site measurement spring strain concrete steps are as follows:
1) the static number electric wire strain gauge is installed;
2) foil gauge is connected to the static number electric wire strain gauge with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished statical strain indicator is demarcated;
When 4) tightening the spring inner bolt and nut, carry out data collection task;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, the axle pressure that rubber stress cone is subjected under the operating mode initially is installed.
Under operating condition, described in-site measurement strain concrete steps are as follows:
1) the dynamic strain tester is installed;
2) foil gauge is connected to the dynamic strain tester with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished the dynamic strain test macro is carried out balance and zero clearing;
4) cable termination of every kind of voltage operating mode is identical with data acquisition time working time;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, obtain the axle pressure that rubber stress cone is subjected under the operating condition.
The enforcement principle is: the hv cable termination rubber stress cone is under pressure and measures the gained strain relation and is
Wherein,
The pressure that is subjected to for stress cone,
Be the measurement strain,
Be the spring wire diameter,
Poor for spring diameter and spring wire diameter,
Shear elasticity for spring material.
Calculate pressure that rubber stress cone is subjected to reliability according to formula (a), and adopt Finite Element Method to calculate hv cable termination insulator interface pressure according to the installation and operation boundary condition that applies with the checking numerical simulator.
Above-mentioned method for numerical simulation is a Finite Element Method, and its concrete steps are as follows:
1), sets up the whole nonlinear Finite Element Method Simulation model of hv cable termination according to hv cable termination practical structures size;
2) according to the rubber stress cone axle pressure result who measures indirectly, the reliability of checking finite element model;
3) apply power electric heating load-up condition and carry out the nonlinear Finite Element Numerical analog computation, obtain the distribution and the Changing Pattern of hv cable termination insulator interface pressure.
Hv cable termination integral body is carried out finite element analogy, set up Thermal-mechanical Coupling field nonlinearity finite element solving equation according to material and geometrical non-linearity and be
Wherein,
Be the integral rigidity matrix, it is the cell node displacement
Function,
Be transposed matrix,
Be the overall load matrix.According to the stressing conditions of hv cable termination, comprise the temperature loading that causes by the cable temperature strain and the rubber stress cone load that is under pressure in the loading matrix, that is:
(c)
In the formula,
Be gravity and pressure load matrix,
The loading matrix item that causes for the cable temperature strain,
Be the rubber stress cone loading matrix that is under pressure.
As shown in Figure 3, according to hv cable termination practical structures size, set up the whole nonlinear Finite Element Method Simulation model of hv cable termination; As shown in Figure 4, calculate interfacial pressure distribution curve between hv cable termination stress cone and the cable insulation, function curve is got on the approximate rank of shape trend.Near the stress cone compression-side, interfacial pressure is big, and away from side, interfacial pressure is little.Between 0-60mm, pressure increases gradually, changes comparatively mild; Between 60mm-80mm, force value increases rapider; Between 80mm-140mm, pressure increases gradually, changes comparatively mild; After 140mm, pressure diminishes again gradually; A minimal value appears near 210mm; Between 210mm-220mm, force value increases rapidly, at the 220mm place, reaches maximal value; Along with the rising of voltage, the insulator interface pressure distribution is identical with the trend that interface location changes, but the curve fluctuating range increases the interfacial pressure increase.
Claims (4)
1. method of measuring the cable terminal insulation interfacial pressure, it is characterized in that, the method that adopts in-site measurement and numerical simulation to combine, directly measure the spring strain of hv cable termination spring attachment by the scene, according to the stressed relation of hv cable termination rubber stress cone and spring attachment, reach and measure stress cone axle pressure purpose indirectly; Set up the whole numerical simulator of hv cable termination, check the analogy model reliability, go out the distribution and the Changing Pattern of cable terminal insulation interfacial pressure at last according to power electric heating load-up condition numerical simulation calculation according to the rubber stress cone axle pressure.
2. a kind of method of measuring the cable terminal insulation interfacial pressure according to claim 1 is characterized in that, installs under the operating mode initial, and described in-site measurement spring strain concrete steps are as follows:
1) the static number electric wire strain gauge is installed;
2) foil gauge is connected to the static number electric wire strain gauge with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished statical strain indicator is demarcated;
When 4) tightening the spring inner bolt and nut, carry out data collection task;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, the axle pressure that rubber stress cone is subjected under the operating mode initially is installed.
3. a kind of method of measuring the cable terminal insulation interfacial pressure according to claim 1 is characterized in that, under operating condition, described in-site measurement strain concrete steps are as follows:
1) the dynamic strain tester is installed;
2) foil gauge is connected to the dynamic strain tester with the half-bridge connection, is the influence of factors such as elimination temperature to test, serviceability temperature dummy gauge in the experiment;
3) strainmeter is fed the good AC power preheating of ground connection, after preheating is finished the dynamic strain test macro is carried out balance and zero clearing;
4) cable termination of every kind of voltage operating mode is identical with data acquisition time working time;
5) be subjected to axle pressure and measure the gained strain relation according to the hv cable termination rubber stress cone, obtain the axle pressure that rubber stress cone is subjected under the operating condition.
4. a kind of method of measuring the cable terminal insulation interfacial pressure according to claim 1 is characterized in that described method for numerical simulation is a Finite Element Method, and its concrete steps are as follows:
1), sets up the whole nonlinear Finite Element Method Simulation model of hv cable termination according to hv cable termination practical structures size;
2) according to the rubber stress cone axle pressure result who measures indirectly, the reliability of checking finite element model;
3) apply power electric heating load-up condition and carry out the nonlinear Finite Element Numerical analog computation, obtain the distribution and the Changing Pattern of hv cable termination insulator interface pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110178313 CN102252787A (en) | 2011-06-29 | 2011-06-29 | Method for measuring pressure of insulation interface of cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110178313 CN102252787A (en) | 2011-06-29 | 2011-06-29 | Method for measuring pressure of insulation interface of cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102252787A true CN102252787A (en) | 2011-11-23 |
Family
ID=44980186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110178313 Pending CN102252787A (en) | 2011-06-29 | 2011-06-29 | Method for measuring pressure of insulation interface of cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252787A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076116A (en) * | 2012-12-29 | 2013-05-01 | 上海捷锦电力新材料有限公司 | Method for detecting interfacial pressure of prefabricated cable accessory |
| CN104197990A (en) * | 2014-09-11 | 2014-12-10 | 金海新源电气江苏有限公司 | Intelligent cable stress cone |
| CN105890835A (en) * | 2016-03-21 | 2016-08-24 | 广州供电局有限公司 | Measuring method for interface pressure of thermal-contraction intermediate connector of cable |
| CN106404250A (en) * | 2016-03-21 | 2017-02-15 | 广州供电局有限公司 | Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof |
| CN106768572A (en) * | 2016-12-27 | 2017-05-31 | 广州供电局有限公司 | Test device and method of testing for detecting ring main unit cable termination stress |
| CN108007622A (en) * | 2017-12-18 | 2018-05-08 | 中国电力科学研究院有限公司 | Cable connector interfacial pressure measuring method |
| CN109063245A (en) * | 2018-06-25 | 2018-12-21 | 国网江苏省电力有限公司南京供电分公司 | A kind of thermotropic expansion performance calculation method of 220kV electric cable with large cross-section based on Thermal-mechanical Coupling |
| CN109443605A (en) * | 2018-12-14 | 2019-03-08 | 上海三原电缆附件有限公司 | The detection device and its detection method of rubber prefabricated component and cable insulation interfacial pressure |
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| CN113237587A (en) * | 2021-02-02 | 2021-08-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Cable joint interface pressure measurement system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864309A (en) * | 2003-10-08 | 2006-11-15 | 昭和电线电缆株式会社 | Polymer bushing and cable terminal end connector using the same |
-
2011
- 2011-06-29 CN CN 201110178313 patent/CN102252787A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864309A (en) * | 2003-10-08 | 2006-11-15 | 昭和电线电缆株式会社 | Polymer bushing and cable terminal end connector using the same |
Non-Patent Citations (2)
| Title |
|---|
| 《中国电力》 20050731 马永其等 220 kV 电缆终端应力锥在力场中的 第23-27页 1-4 第38卷, 第7期 * |
| 《高电压技术》 20110228 马永其等 安装运行中电缆终端绝缘界面压力的测试分析 第347-353页 1-4 第37卷, 第2期 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076116A (en) * | 2012-12-29 | 2013-05-01 | 上海捷锦电力新材料有限公司 | Method for detecting interfacial pressure of prefabricated cable accessory |
| CN103076116B (en) * | 2012-12-29 | 2015-02-25 | 上海捷锦电力新材料有限公司 | Method for detecting interfacial pressure of prefabricated cable accessory |
| CN104197990A (en) * | 2014-09-11 | 2014-12-10 | 金海新源电气江苏有限公司 | Intelligent cable stress cone |
| CN106404250B (en) * | 2016-03-21 | 2019-04-19 | 广州供电局有限公司 | The measuring device and its method of cable cold-shrinking intermediate joint interfacial pressure |
| CN106404250A (en) * | 2016-03-21 | 2017-02-15 | 广州供电局有限公司 | Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof |
| CN105890835A (en) * | 2016-03-21 | 2016-08-24 | 广州供电局有限公司 | Measuring method for interface pressure of thermal-contraction intermediate connector of cable |
| CN106768572A (en) * | 2016-12-27 | 2017-05-31 | 广州供电局有限公司 | Test device and method of testing for detecting ring main unit cable termination stress |
| CN106768572B (en) * | 2016-12-27 | 2023-01-20 | 广州供电局有限公司 | Testing device and testing method for detecting stress of cable terminal of ring main unit |
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| CN108007622A (en) * | 2017-12-18 | 2018-05-08 | 中国电力科学研究院有限公司 | Cable connector interfacial pressure measuring method |
| CN109063245A (en) * | 2018-06-25 | 2018-12-21 | 国网江苏省电力有限公司南京供电分公司 | A kind of thermotropic expansion performance calculation method of 220kV electric cable with large cross-section based on Thermal-mechanical Coupling |
| CN109443605A (en) * | 2018-12-14 | 2019-03-08 | 上海三原电缆附件有限公司 | The detection device and its detection method of rubber prefabricated component and cable insulation interfacial pressure |
| CN109443605B (en) * | 2018-12-14 | 2023-09-29 | 上海三原电缆附件有限公司 | Device and method for detecting pressure of insulation interface between rubber prefabricated part and cable |
| CN113237587A (en) * | 2021-02-02 | 2021-08-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Cable joint interface pressure measurement system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102252787A (en) | Method for measuring pressure of insulation interface of cable terminal | |
| CN202794367U (en) | Electrothermal aging test device of cross-linked polyethylene cable accessory | |
| CN104155526A (en) | Method for measuring impact earthing impedance of electric transmission overhead line structure earthing device with lightning conductor | |
| CN102645596B (en) | High-voltage and high-current composite thermally stable test method and device for high-voltage casing pipe | |
| CN102445642A (en) | Hardware fitting corona test method of power equipment | |
| CN106129823A (en) | Extra-high-voltage alternating current mixed gas GIL line segment and method for arranging | |
| CN102798757A (en) | Method and system for detecting contact resistance of bus joint of GIS (Geographic Information System) | |
| CN103969558A (en) | Testing device for simulating process of triggering trip by transmission line forest fire | |
| CN103618266A (en) | Electrifying defect eliminating tool of drainage plate | |
| CN201251622Y (en) | Heavy current up-flow aggregate unit for field test of 750v current transformator | |
| CN106771774A (en) | It is a kind of while many transformers are carried out with the device of overcurrent test | |
| CN103280792A (en) | Voltage limiter with porcelain housing for series compensation device | |
| Liu et al. | Numerical modeling and analysis of thermal and mechanical behavior for ground wire-clamp system under short-circuit current | |
| CN106199361B (en) | GIS equipment solid insulation multifactor aging test platform | |
| CN202057763U (en) | Experimental device of simulating high voltage transmission line flashover discharge triggered by forest fire | |
| CN208270622U (en) | A kind of power distribution network arrester, isolator detecting bracket | |
| Cao et al. | Development and application of lightning flashover limited equipment for 220 kV AC transmission line | |
| CN101995557B (en) | Method for testing bearing capability of short trouble in high-power converter | |
| CN103595350A (en) | Photovoltaic module wetting electric leakage test method | |
| CN204732236U (en) | 10kV lightning-protection ice used for transmission line needle type composite insulator | |
| CN204789889U (en) | Multi -functional high -voltage testing device | |
| CN204101638U (en) | A kind of 110kV combined type Zinc-Oxide Arrester does not remove high-voltage connection preventive trial connection circuit | |
| CN103454536A (en) | Power transformer test method | |
| CN203479896U (en) | Directly access type high voltage electric energy metering system | |
| CN202838770U (en) | Ground resistor simulation device for skill training |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111123 |