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GB/T 25084-2010: Insulator strings and sets for overhead lines with a nominal voltage greater than 1000 V -- AC power arc tests
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Insulator strings and sets for overhead lines with a nominal voltage greater than 1000 V -- AC power arc tests
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GB/T 25084-2010
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Basic data | Standard ID | GB/T 25084-2010 (GB/T25084-2010) | | Description (Translated English) | Insulator strings and sets for overhead lines with a nominal voltage greater than 1000 V -- AC power arc tests | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K48 | | Classification of International Standard | 29.080.10 | | Word Count Estimation | 27,227 | | Date of Issue | 2010-09-02 | | Date of Implementation | 2011-02-01 | | Quoted Standard | GB/T 22709-2008; IEC 60862 | | Adopted Standard | IEC 61467-2008, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 4 of 2010 (total 159) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the insulator string group frequency arc test standard test procedures, but also on a short string frequency arc test standard test procedures, This standard applies to a nominal voltage greater than 1000V, frequency 15HZ ~ 100HZ AC overhead lines and traction line with porcelain, glass or composite material consisting of string insulator insulator strings and insulation in the string group, this standard also applies to similar structures substation insulator strings and insulator string group, this standard does not apply to non-metallic pole mounted or tower on the insulator string group, this standard can not be directly used for line post insulators and insulator sets, can not be used bracing type line post insulators, which is described as the standard mounting arrangements can not reproduce their installation conditions, However, the basic principles of this standard can be used to test these insulators in its mounting arrangement, purpose of this standard are: definition of the terms used, the required standard test procedures, evaluation of test results required criteria arc tests not a line insulator specification must-try items specified in this standard standard test procedures and evaluation criteria that are necessary in order to test the elbow arc which provides guidance, not trying to take power arc tests must be done as a common pilot project, | GB/T 25084-2010: Insulator strings and sets for overhead lines with a nominal voltage greater than 1000 V -- AC power arc tests
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Insulator strings and sets for overhead lines with a nominal voltage greater than 1000 V.AC power arc tests
ICS 29.080.10
K48
National Standards of People's Republic of China
The overhead voltage is higher than 1000V overhead lines
Use insulator strings and insulator strings
AC frequency arc test
(IEC 61467..2008, Insulatorsforoverheadlines-
Insulatorstringsandsetslines withanominal
voltagegreaterthan1000V-ACpowerarctests, MOD)
2010-09-02 release.2011-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Directory
Preface I
1 Scope 1
2 normative reference document 1
3 Terms and definitions 1
4 symbols and abbreviations 2
5 test current characteristics 3
6 power supply circuit and return circuit condition 3
7 Insulator string test
7.1 Introduction 5
7.2 Test arrangement 5
7.3 Test current 5
7.4 Power supply circuit and return circuit condition 5
7.5 starting arc 5
7.6 Environmental conditions 7
7.7 Characteristics of test group and power frequency arc 7
8 short string test
8.1 Introduction 7
8.2 Test arrangement 7
8.3 Test current 9
8.4 Power supply circuit and return circuit condition 9
8.5 starting arc 9
8.6 Environmental conditions 9
8.7 Test group and power frequency arc characteristics 9
9 Test Report 9
10 Results 10
10.1 Introduction 10
10.2 Visual inspection 10
10.3 porcelain or glass insulator 10
10.4 composite insulator 10
10.5 Criteria 10
Appendix A (normative appendix) Test arrangement and tower simulation Applicable method example (return circuit) 12
Appendix B (normative appendix) Determination of current square root value 15
B.1 Determination of the square root value of the AC component during the actual duration of the test current
B.2 Three peaks method 15
Appendix C (informative) No-load voltage for power frequency power supply 17
Appendix D (informative) Insulated arcs on insulator strings and their true simulation (proper arrangement of fuses) 18
Appendix E (informative) Wind speed in arc test
Appendix F (informative) Fault current size and selection of test parameters
Appendix G (informative) Technical differences between this standard and IEC 61467..2008 and its causes 22
Reference 23
Foreword
This standard is modified using IEC 61467..2008 "overhead lines with insulators nominal voltage higher than 1000V overhead lines with insulation
Sub - string and insulator string AC frequency arc test "(English version).
This standard makes some technical changes compared to IEC 61467..2008, with the vertical single line (|) in the chapter
And the description of the changes and their reasons in Appendix G.
This standard refers to the adoption of international standards of national standards.
For ease of use, this standard has been modified as follows.
a) Replace the comma as a decimal point with the decimal point "."
b) delete the preamble of IEC 61467..2008;
c) the word "international standard" is changed to "this standard".
Taking into account the applicability of the text, this standard removes Appendix G and Appendix H of IEC 61467..2008. The standard section number of this standard
IEC 61467..2008.
Appendix A and Appendix B of this standard are normative, Appendix C, Appendix D, Appendix E, Appendix F and Appendix G are informative
appendix.
This standard is proposed by China Electrical Equipment Industry Association.
This standard is nationalized by the National Insulator Standardization Technical Committee (SAC/TC80).
The drafting unit of this standard. China Electric Power Research Institute, Xi'an High Voltage Electric Appliance Research Institute Co., Ltd. Xi'an Electric Porcelain Research Institute, State Grid
Wuhan High Voltage Research Institute, National Insulator Surge Arrester Quality Supervision and Inspection Center, Dalian Electric Porcelain Co., Ltd., Guangzhou Maike Lin Electric Power Co., Ltd.
Division, Xiangfan State Grid Synthetic Insulator Co., Ltd., Dongguan City High Energy Electric Co., Ltd., Xinjiang Xinneng Tianning electrical insulation materials
Limited company, Hebei Xinhua High Voltage Electric Co., Ltd., Shandong Thai Light Electric Co., Ltd., Jiangsu Xiangyuan Electric Equipment Co., Ltd.
The main drafters of this standard. Wang Lai, Yao Junrui, Wu Guangya, Wei Peng, Fan Jianbin, Zhang Rui, Ren Guixing, Ouyang Xu Dan, Yang Hongjun,
Qi Dongbao, and Rong Jun, Teng Guoli, Zhang Hongxiang.
The overhead voltage is higher than 1000V overhead lines
Use insulator strings and insulator strings
AC frequency arc test
1 Scope
This standard specifies the insulator string of the frequency of the arc test standard test procedures, but also proposed a short string of the frequency of arc test standard test
program.
This standard applies to the nominal voltage higher than 1000V, frequency 15Hz ~ 100Hz AC overhead lines and traction lines with porcelain, glass
Or composite insulator string components of the insulator string and insulator string group.
This standard also applies to substructural insulator strings and insulator strings of similar structures.
This standard does not apply to insulator strings installed on non-metallic poles or towers.
This standard can not be directly used for line column insulators and their insulator groups, nor can they be used for pendulum type column insulators, due to
The installation arrangement described in this standard does not reproduce its installation. However, the basic principles of this standard can be used for the testing of these insulators and
Its installation layout.
The purpose of this standard is.
Define the terminology used;
- standard test procedures;
- Criteria for the evaluation of test results.
The arc test is not a mandatory item in the line insulator specification. The standard test procedures and evaluation criteria set forth in this standard are for the purpose of being available
It is necessary to carry out the arc test to provide guidance, not to arc test as a common test items must be done.
2 normative reference documents
The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all
(Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard
Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard.
GB/T 22709-2008 Porcelain or glass insulator string for overhead lines Insulator mechanical residual strength after damage
(IEC 60797. 1984, MOD)
Code for design of IEC 60862 overhead transmission lines
3 terms and definitions
The following terms and definitions apply to this standard.
Note. Other terms and definitions used in this standard can be found in GB/T 2900.8, GB/T 1001.1-2003 and IEC 60383-2..1993.
3.1
Test test
A specified test current is applied to the insulator string or string for a specified duration.
3.2
Test sequence testsequence
Three consecutive tests on the same insulator string or string.
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