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GB/T 4585-2024: Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a. c. systems
Status: Valid GB/T 4585: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4585-2024 | English | 779 |
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Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a. c. systems
| Valid |
GB/T 4585-2024
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| GB/T 4585-2004 | English | 919 |
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Artificial pollution tests on high-voltage insulators to be used on a.c. systems
| Obsolete |
GB/T 4585-2004
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| GB/T 4585.1-1984 | English | 239 |
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Artificial pollution tests on high-voltage insulators to be used on a. c. systems--Salt-fog method
| Obsolete |
GB/T 4585.1-1984
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PDF similar to GB/T 4585-2024
Basic data | Standard ID | GB/T 4585-2024 (GB/T4585-2024) | | Description (Translated English) | Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a. c. systems | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K48 | | Classification of International Standard | 29.080.10 | | Word Count Estimation | 38,338 | | Date of Issue | 2024-06-29 | | Date of Implementation | 2025-01-01 | | Older Standard (superseded by this standard) | GB/T 4585-2004 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4585-2024: Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a. c. systems
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.080.10
CCSK48
National Standards of People's Republic of China
Replace GB/T 4585-2004
High voltage porcelain and glass insulators for AC systems
Artificial pollution test
(IEC 60507.2013,MOD)
Released on 2024-06-29
2025-01-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General test requirements 3
4.1 General requirements 3
4.2 Test method 3
4.3 Preparation of the test insulator
4.4 Requirements for test equipment 4
5 Salt spray method 6
5.1 General requirements 6
5.2 Salt solution 6
5.3 Spray system 7
5.4 Conditions before the start of the test 9
5.5 Preprocessing 10
5.6 Tolerance test 10
5.7 Acceptance criteria for withstand tests 10
6 Solid layer method10
6.1 General requirements 10
6.2 Main properties of inert materials 11
6.3 Composition of sewage 11
6.4 Coating of fouling layer 13
6.5 Determination of the contamination degree of the tested insulators 14
6.6 General requirements for soil layer wetting 15
6.7 Test procedure 15
7 Solid layer method resistance test and acceptance criteria (common to procedures A and B) 17
7.1 Acceptance criteria for insulator withstand 17
7.2 Determination of 50% withstand voltage of insulators 17
Appendix A (Informative) Supplementary information on artificial pollution test for insulators in voltage systems of 800 kV and above (solid layer method---procedure B) 19
Appendix B (Informative) Supplementary information for assessing whether the test equipment meets the requirements 20
Appendix C (Informative) Determination of Insulator Withstand Characteristics 21
Appendix D (Normative) Supplementary information on artificial pollution test for HTM insulators 23
Appendix E (Informative) Measurement of the conductivity of the fouling layer to verify the uniformity of the fouling layer 24
Appendix F (informative) Supplementary recommendations related to the solid layer method procedure 26
References 29
Figure 1 Relationship between the minimum short-circuit current Iscmin required by the test equipment and the unified creepage distance USCD of the insulator under test
Figure 2 Relationship between b value and temperature θ 7
Figure 3 Typical structure of spray nozzle 8
Figure 4 Test arrangement of tilted insulators 9
Figure 5 Relationship curve between gray density and gray scale of dirty liquid (DL/T 810-2012) 12
Figure 6 Typical arrangement of steam mist generator 16
Figure E.1 Arrangement of probe electrodes 24
Figure E.2 Instrument circuit diagram 25
Figure F.1 Control of the steam mist wetting effect on hydrophilic surface insulators; During the test, the selected simulated insulators (Table B.1
Standard type) Recording the conductivity of the dirt layer 28
Table 1 Salt spray method. Corresponding relationship between salinity, volume conductivity and density of solution at 20℃
Table 2 Main characteristics of inert materials for solid layer sewage 11
Table 3 Diatomaceous earth mixture. Approximate correspondence between the reference contamination degree on the insulator and the volume conductivity of the contamination liquid at 20°C 12
Table 4 Kaolin (or grinding stone powder) mixture. the approximate relationship between the base pollution degree on the insulator and the volume conductivity of the pollutant at 20℃
Correspondence 13
Table B.1 Ihmax values corresponding to different USCD values 20
Table C.1 Scope of tolerance characteristics of reference suspension insulators in artificial pollution test Single string vertical arrangement 22
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 4585-2004 "Artificial pollution test for high voltage insulators for AC systems" and is consistent with GB/T 4585-2004.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Extend the voltage level in the scope to UHV (see Chapter 1, Chapter 1 of the.2004 edition);
--- Deleted the chapter "Purpose" (see Chapter 2 of the.2004 edition);
--- Change the term "creepage distance of insulators" to "unified creepage distance" (see 3.3, 3.3 of the.2004 edition);
--- Added the term "gray density" (see 3.17);
--- Added the term "hydrophobic migrating material" (see 3.18);
--- Added explanation on the purpose of pollution test (see 4.1);
--- Added meteorological correction to the requirements for test equipment (see 4.4.2);
--- Added the relationship curve between the gray density and gray scale of the dirty liquid (see 6.3);
--- Added quantitative brushing method to the solid layer method (see 6.4.2);
--- The general requirements for wetting of the dirt layer are detailed (see 6.6, Chapter 17 of the.2004 edition);
--- Added common tolerance tests and acceptance criteria for Procedure A and Procedure B (see Chapter 7);
--- Added the determination of 50% withstand voltage of insulators (see 7.2);
--- Added "Supplementary information on artificial pollution test for HTM insulators" (see Appendix D).
This document is modified to adopt IEC 60507.2013 "Artificial pollution tests for high voltage porcelain and glass insulators for AC systems".
This document has made the following structural adjustments compared to IEC 60507.2013.
--- Deleted 6.8 of IEC 60507.2013;
---Added Chapter 7;
--- Appendix A corresponds to Appendix E of IEC 60507.2013;
--- Appendix B corresponds to Appendix A of IEC 60507.2013;
--- Appendix C corresponds to Appendix B of IEC 60507.2013;
--- Added Appendix D;
--- Appendix E corresponds to Appendix C of IEC 60507.2013;
--- Appendix F corresponds to Appendix D of IEC 60507.2013.
The technical differences between this document and IEC 60507.2013 and their reasons are as follows.
--- Added normative references GB/T 2900.8 (see Chapter 3) and DL/T 810-2012 (see 6.3);
--- Changed the definition of unified creepage distance (see 3.3) to make it consistent with GB/T 26218.1-2008;
--- The definition of the shape factor of the insulator has been changed (see 3.4) to make it conform to the actual usage habits in my country;
--- Added the term "hydrophobic migration material" (see 3.18), taking into account the test content of HTM insulators;
--- The normative reference GB/T 311.1-2012 replaces IEC 60071-1 (see 4.4.1) to apply my country's technical conditions and
The actual situation of the power grid;
--- The normative reference GB/T 26218.1-2010 replaces IEC /T S60815-1 (see 5.1, 6.1) to apply to my country's technical
Technical conditions and actual power grid conditions;
--- Added the relationship curve between the gray density and gray scale of the dirty liquid (see 6.3), based on my country's test experience;
--- Added relevant statements on the test method for HTM insulators (see 6.4.1), based on my country's test experience;
--- Added quantitative brushing method to the solid layer method (see 6.4.2). my country's testing agencies usually use the quantitative brushing method for testing;
--- Added relevant provisions on the surface fog of the test sample (see 6.6), based on my country's test experience;
--- Added the solid layer method tolerance test and acceptance criteria common to Procedure A and Procedure B (see Chapter 7), based on the relevant tests in my country
the actual situation;
--- The normative reference GB/T 16927.1-2011 replaces IEC 60060-1 (see 7.2, C.4) to apply to my country's technology
conditions and grid realities;
--- Added "Supplementary information on artificial pollution test for HTM insulators", considering the artificial pollution test of HTM insulators.
Requirements (see Appendix D).
The following editorial changes were made to this document.
--- This document incorporates the contents of IEC 60507.2013/COR1.2018;
--- Added a note on recommending the use of a long string of test pieces close to the actual configuration for testing (see 4.1);
--- Deleted Notes 1 to 3 in meteorological correction (see 4.4.2 of IEC 60507.2013);
--- Deleted the two notes on tonoko (see 6.3.3 of IEC 60507.2013);
--- Added notes on the pollution layer conductivity method (see 6.5.1);
--- Deleted the note about the plastic tent replacing the fog chamber (see 6.6 of IEC 60507.2013);
--- Added the note on the saturation time of insulators (see 6.7.3);
--- Deleted the note on the method for determining the withstand characteristics of insulators (see 6.8 of IEC 60507.2013).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee for Standardization of Insulators (SAC/TC80).
This document was drafted by. China Electric Power Research Institute Co., Ltd., Xi'an High Voltage Electric Equipment Research Institute Co., Ltd., Tsinghua University
Shenzhen International Graduate School, Tsinghua University, Chongqing University, China Southern Power Grid Research Institute Co., Ltd., Yunnan Power Grid Co., Ltd.
Science Research Institute, Wuhan Branch of China Electric Power Research Institute Co., Ltd., State Grid Shandong Electric Power Company Electric Power Research Institute, State Grid Jiangsu
Provincial Electric Power Co., Ltd. Electric Power Research Institute, State Grid Corporation of China Operation Branch, Inner Mongolia Electric Power Research Institute, State Grid Zhejiang Province
Power Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Electric Power Research Institute, State Grid Jiangxi Electric Power Co., Ltd., China Southern Power Grid
The maintenance and test center of the ultra-high voltage transmission company of China Southern Power Grid Co., Ltd., the Dali Bureau of the ultra-high voltage transmission company of China Southern Power Grid Co., Ltd., and the State Grid West
Tibet Electric Power Co., Ltd. Electric Power Research Institute, State Grid Xinjiang Electric Power Co., Ltd. Electric Power Research Institute, Guangdong Yudean Zhanjiang Wind Power Co., Ltd.
Company, Dalian Electric Porcelain Group Power Transmission and Transformation Materials Co., Ltd., Suzhou Electric Porcelain Factory Co., Ltd., Shandong Gaoya Insulator Co., Ltd., Sichuan Huan
Ball Insulator Co., Ltd., Nanjing Electric Insulator Co., Ltd., Xiangyang State Grid Synthetic Insulator Co., Ltd., Changyuan High Energy Electric Co., Ltd.
Ltd.
The main drafters of this document are. Zhou Jun, Yu Xinzhe, Wang Yunpeng, Wang Liming, Liang Xidong, Yao Junrui, Jiang Xingliang, Jing Qian, Zhang Fuzeng, Huang Ruiping,
Ma Yi, Wu Guangya, Wan Xiaodong, Shen Qinghe, Liu Yunwei, Liu Yang, Shan Huaping, Che Chuanqiang, Chen Nan, Jiang Wendong, Li Te, Guo Zhifeng, Yin Fanghui, Wei Peng,
Wei Xiaoxing, Liu Shizeng, Wang Dafei, Liu Ling, Yan Yun, Yu Qingbo, Zhou Yongxin, Lü Xiguang, Zeng Hong, Zhang Shangang, Yang Hongjun, Xu Wenrong.
The previous versions of this document and the documents it replaces are as follows.
---GB/T 4585.1-1984, GB/T 4585.2-1991;
--- The first revision in.2004 was merged into GB/T 4585-2004;
---This is the second revision.
High voltage porcelain and glass insulators for AC systems
Artificial pollution test
1 Scope
This document specifies the artificial pollution test procedure applicable to insulators and bushings for overhead lines, substations, traction lines.
This document is applicable to porcelain, glass and other insulation materials used outdoors and exposed to polluted atmosphere in AC systems with a nominal voltage of 1000V and above.
Determination of power frequency withstand characteristics of electronic components.
Composite insulators, grease-coated insulators, special insulators (semiconductor glaze insulators or insulators with organic insulating coating on the surface) refer to
Execute this document.
If this document is applied to hollow insulators, appropriate measures need to be taken to avoid flashover inside the insulator.
When testing equipment, it is necessary to develop preventive measures against the effects of the test procedures on the equipment.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 311.1-2012 Insulation coordination Part 1.Definitions, principles and rules (IEC 60071-1.2006, MOD)
GB/T 2900.8 Electrical terminology insulator
GB/T 16927.1-2011 High voltage test technology Part 1.General definitions and test requirements (IEC 60060-1.2010,
MOD)
GB/T 26218.1-2010 Selection and sizing of high-voltage insulators for use under polluted conditions Part 1.Definitions, information
and general principles (IEC /T S60815-1.2008,MOD)
DL/T 810-2012 Technical requirements for DC rod-shaped composite suspension insulators of voltage levels of ±500 kV and above
3 Terms and definitions
The terms and definitions defined in GB/T 2900.8 and the following apply to this document.
3.1
Test voltagetestvoltage
The root mean square value of the voltage applied continuously to the insulator during the entire test period
3.2
ISC
The root mean square value of the current supplied by the test equipment when the test item is short-circuited at the test voltage.
3.3
The ratio of the creepage distance of an insulator to the root mean square value of the highest operating voltage carried by the insulator.
Note 1.Usually expressed in mm/kV.
NOTE 2 This definition differs from the definition of creepage distance where the maximum voltage of the equipment (Um) is used as the line-to-line value (usually Um/3 for AC systems).
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