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GB/T 13542.2-2021: Plastic films for electrical purposes - Part 2: Methods of test
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Basic data | Standard ID | GB/T 13542.2-2021 (GB/T13542.2-2021) | | Description (Translated English) | Plastic films for electrical purposes - Part 2: Methods of test | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K15 | | Word Count Estimation | 54,593 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 13542.2-2021: Plastic films for electrical purposes - Part 2: Methods of test---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.
Plastic films for electrical purposes - Part 2.Methods of test
ICS 29.035.99
CCSK15
National Standards of People's Republic of China
Replace GB/T 13542.2-2009
Films for electrical insulation. Part 2.Test methods
(IEC 60674-2.2019, Specificationforplasticfilmsforelectricalpurposes-
Released on 2021-10-11
2022-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅸ
IntroductionⅫ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 General description of the test 2
4.1 Sampling 2
4.2 Pretreatment conditions 2
4.3 Test condition 2
5 thickness 2
5.1 Overview 2
5.2 Mechanical Law 3
5.2.1 Overview 3
5.2.2 Single layer method 3
5.2.2.1 Principle 3
5.2.2.2 Measuring instrument 3
5.2.2.3 Measurement 3
5.2.2.4 Results 3
5.2.3 Stacking method 3
5.2.3.1 Measuring instrument 3
5.2.3.2 Measurement 3
5.2.3.3 Results 3
5.3 Gravimetric method (mass density method) 4
5.3.1 Determine the average thickness of the sample by gravimetric method 4
5.3.1.1 Principle 4
5.3.1.2 Measuring instrument 4
5.3.1.3 Measurement 4
5.3.1.4 Results 4
5.3.2 Determine the average thickness of rolls by gravimetric method 4
5.4 Lateral thickness distribution and longitudinal thickness variation 4
6 Density 4
7 width 4
8 Windability (offset/curved or recessed) 5
8.1 Principle 5
8.2 Overview 6
8.3 Method A 6
8.3.1 Principle 6
8.3.2 Offset/arc measurement 6
8.3.2.1 Equipment 6
8.3.2.2 Sample 7
8.3.2.3 Procedure 7
8.3.2.4 Results 7
8.3.3 Measurement of depression 7
8.3.3.1 Equipment 7
8.3.3.2 Sample 7
8.3.3.3 Procedure 7
8.3.3.4 Results 8
8.4 Method B 8
8.4.1 Principle 8
8.4.2 Equipment 8
8.4.3 Sample 8
8.4.4 Procedure 8
8.4.5 Results 9
9 Surface roughness 9
9.1 Overview 9
9.2 Measuring principle 9
9.3 Test equipment and supplies 9
9.4 Sample 9
9.5 Procedure 9
9.6 Results 9
10 Porosity 9
10.1 Test equipment 9
10.2 Sample 9
10.3 Procedure 10
10.4 Results 10
11 Coefficient of friction 10
12 Wetting tension (polyolefin film) 10
12.1 Principle 10
12.2 Equipment 10
12.3 Reagent 10
12.4 Sample 11
12.5 Condition processing 11
12.6 Procedure 12
12.7 Evaluation 12
12.8 Results 12
13 Tensile strength and elongation at break 12
13.1 Overview 12
13.2 Sample 12
13.3 Test speed 12
13.4 Procedure 12
13.5 Test results 13
14 Edge tearing 13
14.1 Overview 13
14.2 Sample 13
14.3 Procedure 13
14.4 Test results 14
15 Internal tear 14
16 Stiffness 14
17 Surface resistivity 14
18 Volume resistivity 14
18.1 Method 1 Electrode method 14
18.2 Method 2 Model capacitor method (applicable to winding capacitor dielectric films or thinner films for method 1) 15
18.2.1 Principle 15
18.2.2 Sample 15
18.2.3 Equipment or appliances 16
18.2.4 Procedure 16
18.2.5 Results 16
19 Dielectric dissipation factor and permittivity 16
19.1 Overview 16
19.2 Method 1 Contact electrode method 16
19.2.1 Overview 16
19.2.2 Sample and specimen handling 16
19.2.3 Sample condition processing before measurement 16
19.2.4 Contact electrode measurement 17
19.2.4.1 Overview 17
19.2.4.2 Electrode material 18
19.2.4.2.1 Evaporating or vacuum spraying metal 18
19.2.4.2.2 Conductive silver paint 18
19.2.4.2.3 Metal foil 18
19.3 Method 2 Non-contact electrode measurement 18
19.3.1 Overview 18
19.3.2 Air substitution method 18
19.3.2.1 Variable pitch method 18
19.3.2.1.1 Principle 18
19.3.2.1.2 Electrode structure 19
19.3.2.1.3 Measuring the bridge 19
19.3.2.1.4 Sample 19
19.3.2.1.5 Procedure 19
19.3.2.1.6 Results 20
19.3.2.2 Variable capacitance method 20
19.3.2.2.1 Principle 20
19.3.2.2.2 Electrode structure 20
19.3.2.2.3 Measuring the bridge 20
19.3.2.2.4 Sample 20
19.3.2.2.5 Procedure 20
19.3.2.2.6 Results 21
19.3.3 Fluid discharge method 21
19.4 Method 3 Model capacitor method 21
19.4.1 Overview 21
19.4.2 Equipment 21
19.4.3 Sample 22
19.4.4 Procedure 22
19.4.5 Test results 22
20 Dielectric loss factor in the immersed state 23
21 Electric strength 23
21.1 AC and DC test (sheet-like film sandwiched between metal electrodes) 23
21.2 DC test (model capacitor element) 23
21.2.1 Test device 23
21.2.2 Samples and their preparation 23
21.2.3 Procedure 23
21.2.4 Test results 23
21.3 DC test with film thickness less than or equal to 6μm 23
22 Electric Weakness 24
22.1 Overview 24
22.2 Method A---Narrow Strip Test Method 24
22.2.1 Test device 24
22.2.2 Sample 25
22.2.3 Procedure 25
22.2.4 Results 25
22.3 Method B---plate method 25
22.3.1 Overview 25
22.3.2 Test device 26
22.3.3 Procedure 26
22.3.4 Results 26
22.4 Method C---wide strip roll test method 27
22.4.1 Overview 27
22.4.2 Unwinding system 27
22.4.2.1 Overview 27
22.4.2.2 Method C1 27
22.4.2.3 Method C2 27
22.4.2.4 Method C3 28
22.4.3 Weakness Counter 29
22.4.4 Procedure 29
22.4.5 Results 29
23 Resistance to surface discharge breakdown 29
24 Electrolytic corrosion 30
25 melting point 30
25.1 Method A---DSC Method 30
25.2 Method B-Meniscus Method 30
25.2.1 Overview 30
25.2.2 Test equipment and materials 30
25.2.3 Sample 30
25.2.4 Procedure 30
25.2.5 Results 31
26 Shrinkage rate 31
26.1 Sample 31
26.2 Procedure 31
26.3 Results 32
27 Dimensional stability under tension 32
27.1 Equipment 32
27.2 Sample 32
27.3 Procedure 32
27.4 Results 33
28 Dimensional stability under pressure 33
28.1 Equipment 33
28.2 Sample 33
28.3 Procedure 33
28.4 Results 34
29 High temperature penetration resistance 34
29.1 Overview 34
29.2 Principle 34
29.3 Equipment 34
29.4 Specimen 35
29.5 Procedure 35
29.6 Results 35
30 Volatile content (thermal weight loss) 35
30.1 Equipment 35
30.2 Sample 35
30.3 Procedure 36
30.4 Results 36
31 Long-term heat resistance 36
32 Combustibility 36
32.1 Method A 36
32.1.1 Principle 36
32.1.2 Equipment 36
32.1.3 Sample 37
32.1.4 Conditional processing 37
32.1.5 Procedure 37
32.1.6 Explanation of results 37
32.2 Method B 38
33 Hygroscopicity in humid air 38
33.1 Equipment or appliances 38
33.2 Specimen 38
33.3 Procedure 38
33.3.1 Hygroscopicity of materials in receipt state 38
33.3.2 Hygroscopicity of dry materials 38
33.3.3 Results 39
34 Liquid absorption 39
34.1 Principle 39
34.2 Equipment 39
34.3 Sample 39
34.4 Procedure 39
34.5 Results 40
35 Ionic impurity extraction 40
36 Influence of insulating varnish/liquid polymerizable resin compound 40
36.1 Equipment 40
36.2 Sample 40
36.3 Procedure 40
36.3.1 Insulating paint 40
36.3.2 Liquid polymerizable resin compound 41
36.4 Results 41
References 42
Figure 1 Schematic diagram of winding property measurement (method A offset/arc measurement) 5
Figure 2 Schematic diagram of winding property measurement (method A offset/arc measurement and method B offset/arc, dent measurement) 5
Figure 3 Schematic diagram of winding property measurement (measurement of dent) 6
Figure 4 Schematic diagram of edge tear test 14
Figure 5 Schematic diagram of the sample structure of a model capacitor for measuring volume resistivity 15
Figure 6 Three-electrode system for low frequency (maximum 50kHz) measurement 17
Figure 7 Two-electrode system for high frequency (above 50kHz) measurement 17
Figure 8 The principle of non-contact electrode structure Figure 19
Figure 9 Schematic diagram of sample structure for measuring dielectric loss factor and permittivity 22
Figure 10 The principle diagram of the breakdown measurement system for thin films with a thickness less than or equal to 6 μm 24
Figure 11 Schematic diagram of electric weakness test (Method A) 25
Figure 12 Schematic diagram of electric weakness test (Method B) 26
Figure 13 Schematic diagram of electric weakness test (Method C1) 27
Figure 14 Schematic diagram of electrical weakness test (Method C2) 28
Figure 15 Schematic diagram of electric weakness test 28
Figure 16 Schematic diagram of melting point determination by meniscus method 31
Figure 17 Schematic diagram of dimensional stability test under tension 33
Figure 18 Schematic diagram of dimensional stability test under pressure 34
Figure 19 Schematic diagram of high temperature resistance penetration tester 35
Table 1 The concentration of the mixture of ethylene glycol monoethyl ether and formamide used when measuring the wetting tension of polyethylene and polypropylene films 11
Table 2 Material self-extinguishing classification 38
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 of Standardization Documents"
Drafting.
This document is Part 2 of GB/T 13542 "Film for Electrical Insulation". GB/T 13542 has released the following parts.
---Part 1.Definitions and general requirements;
---Part 2.Test method;
---Part 3.Biaxially oriented polypropylene film for capacitors;
---Part 4.Polyester film;
---Part 6.Polyimide film for electrical insulation.
This document replaces GB/T 13542.2-2009 "Films for Electrical Insulation Part 2.Test Methods", and is compatible with GB/T 13542.2-2009
Compared with.2009, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Modified the measurement value of the single-layer method in 5.2.2 thickness measurement from 27 times to 9 times (see 5.2.2.3, 4.1.1.3 of the.2009 edition);
b) In 5.4 "Transverse thickness distribution and longitudinal thickness change", "Usually use infrared or laser non-contact measurement methods to measure thickness
Spend. If the film forming and winding thickness changes are required, the manufacturer installs this measuring device on the production line. Measurement minimum score
The resolution, accuracy, and measurement surface area (width and length) are specified in the product standard (see 5.4,.2009 edition
4.4);
c) Chapter 8 "Coilability (Offset/Curved and Concavity)", adds the content of the principles of Method A and Method B (see 8.3.1 and 8.4.1,
7.2 and 7.3 of the.2009 edition);
d) Chapter 11 "Coefficient of Friction", "Principle" is added (see Chapter 11, Chapter 9 of the.2009 edition);
e) Chapter 13 "Tensile Strength and Elongation at Break" is revised to the method according to GB/T 1040.3-2006 (see Chapter 13,.2009
Chapter 11 of the edition); Chapter 14 "Edge tearing" is modified to follow the method of Chapter 10 in GB/T 1310.2-2009 (see Chapter
Chapter 14, Chapter 12 of the.2009 edition); Chapter 15 "Internal tearing" adds the measurement method of GB/T 16578.1 (see Chapter 15
Chapter, Chapter 13 of the.2009 edition);
f) Chapter 17 "Surface resistivity" is revised to the method according to GB/T 31838.3 (see Chapter 17, Chapter 15 of the.2009 edition);
Chapter 18 "Volume Resistivity" Method 1 The electrode method is modified to the method of GB/T 31838.2, and the diameter of the high-voltage electrode is determined by
27mm is modified to at least 40mm (see 18.1, 16.1 of the.2009 edition);
g) Chapter 20 "Dielectric loss factor under immersion state" is added (see Chapter 20);
h) Chapter 21 "Electrical Strength" has added the DC test method according to GB/T 1408.2 (see 21.1, 18.2 of the.2009 edition) and
Direct current test clauses for thin films less than or equal to 6μm (see 21.3);
i) Chapter 22 "Electrical Weakness", modify Method C to Method C1, Method C2 or Method C3 (see 22.4,.2009 edition of 19.3);
j) Chapter 23 "Surface discharge breakdown resistance", amended to comply with GB/T 22689 (see Chapter 23, Chapter 20 of the.2009 edition); Chapter 25
Chapter "Melting Point" DSC method was revised from the method according to IEC 61074.1991 to the method according to GB/T 19466.3 (see 25.1,.2009 edition)
22.1); Chapter 29 "High Temperature Penetration Resistance", amended to be in accordance with Chapter 10 of GB/T 20631.2-2006 (see Chapter 29,
Chapter 26 of the.2009 edition);
k) Chapter 32 "Combustibility", method B is added, according to the test method in Chapter 20 of GB/T 20631.2-2006 (see 32.2).
This document uses the redrafting method to modify and adopt IEC 60674-2.2019 "Plastic Film for Electrical Use Part 2.Test Methods".
Compared with IEC 60674-2.2019, this document combines Chapter 35 and Chapter 36 into one chapter in structure.
Compared with IEC 60674-2.2019, this document has technical differences.
The vertical single line (%00) of the position is marked.
The technical differences between this document and IEC 60674-2.2019 and the reasons are as follows.
a) Regarding normative reference documents, this document has made adjustments with technical differences to adapt to my country's technical conditions and adjustments.
The situation is collectively reflected in Chapter 2 "Normative Reference Documents", and the specific adjustments are as follows.
1) Replace ISO 534 with GB/T 451.3, which is equivalent to adopting international standards;
2) Replace ISO 1183 with GB/T 1033.1, which is equivalent to the international standard;
3) Replace IEC 60243-2 with GB/T 1408.2 which is equivalent to adopting international standards;
4) Replace IEC 60250.1969 with GB/T 1409-2006 which is modified to adopt international standards;
5) Replace ISO 4593 with GB/T 6672 which is equivalent to adopting international standards;
6) Replace ISO 4592 with GB/T 6673 which is equivalent to adopting international standards;
7) Replace IEC 60589 with GB/T 7196 which is equivalent to adopting international standards;
8) Replace ISO 8295 with GB/T 10006, which is equivalent to adopting international standards;
9) Replace IEC 60426 with GB/T 10582 which is equivalent to adopting international standards;
10) Replace IEC 60216 (all parts) with GB/T 11026 (all parts) equivalent to adopting international standards;
11) Replaced with GB/T 13542.3, GB/T 13542.4, and GB/T 13542.6 which are modified to adopt international standards
IEC 60674-3 (all parts);
12) Replace ISO 6383-1 with GB/T 16578.1 which is equivalent to adopting international standards;
13) Replace ISO 6383-2 with GB/T 16578.2 which is equivalent to the international standard;
14) Replace ISO 11357-3.2011 with GB/T 19466.3 which is equivalent to adopting international standards;
15) Replace IEC 60454-2.2007 with GB/T 20631.2-2006, which is equivalent to adopting international standards;
16) Replace IEC 60343 with GB/T 22689 which is equivalent to adopting international standards;
17) Replace IEC 62631-3-1 with GB/T 31838.2 which is equivalent to adopting international standards;
18) Replace IEC 62631-3-2 with GB/T 31838.3 which is equivalent to adopting international standards;
19) Added normative reference document GB/T 25915.1-2010.
b) A chapter "Terms and Definitions" has been added (see Chapter 3).
c) For ease of use, test conditions have been added in 4.3 (see 4.3).
d) For the convenience of use, in Chapter 5 "Thickness", the regulations on measuring instruments, measurement procedures and calculation formula of "mass density method" have been added.
Formula (see 5.2.2.2, 5.2.3.1, 5.3.1.2~5.3.1.4).
e) Taking into account the actual needs of our country, in Chapter 8 "Winding", the "Diameter of the roller in the "equipment" clause is 100mm ±
"10mm" is revised to "The diameter of the roller is 100mm±1mm" (see Chapter 8).
f) Taking into account the actual needs of our country, specific measurement methods have been added to Chapter 9 "Surface Roughness" (see Chapter 9).
g) Taking into account the actual needs of our country, in Chapter 10 "void ratio" added test instruments, samples and procedures (see 10.1, 10.2, 10.3).
h) Taking into account the actual needs of our country, in Chapter 13 "Tensile Strength and Elongation at Break", test procedures and result calculations have been added (see
13.4 and 13.5).
i) Taking into account the actual needs of our country, in Chapter 14 "Edge Tearness", samples, test procedures, test results and schematic diagrams have been added
(See 14.2, 14.3, 14.4).
j) Taking into account the actual needs of our country, in Chapter 18 "Volume Resistivity", Figure 4 and equipment or appliances are added (see 18.2.2 and
18.2.3).
k) Taking into account the actual needs of our country, in Chapter 19 "Dielectric Dissipation Factor and Permittivity", IEC 60674-2 (2001 No.
1st revision) "Non-contact electrode measurement" method (variable capacitance method, variable spacing method), and refined the calculation formula;
The "Capacitor Method" has been refined and the calculation formula has been added (see 19.3.2.1 and 19.3.2.2); in the "Fluid Discharge Method" has been added
Equipment, samples and test results (see 19.4).
l) For the convenience of use, in Chapter 21 "Electrical Strength", the test device, sample and its preparation and procedures have been added to the "DC Test"
And test results (see 21.2.1~21.2.4).
m) Taking into account the actual needs of our country, the thickness of the aluminum foil electrode in the "Electrical Weakness" test in Chapter 22 is changed from 6μm to 7μm, and the
The applied DC voltage is changed from 100V/μm to the voltage value of.200V/μm specified in the product standard (see 22.2.1 and 22.3.2).
n) Taking into account the actual needs of our country, "Method B-Meniscus Method" (see 25.2) has been added to Chapter 25 "Melting Point".
o) For ease of use, in Chapter 26 "Shrinkage Rate", the calculation formula for the result has been added (see 26.3).
p) For ease of use, in Chapter 27 "Dimensional stability under tension" and Chapter 28 "Dimensional stability under pressure", equipment and
Schematic diagram of the test (see 27.1, 28.1 and Figure 18).
q) For ease of use, in Chapter 29 "High Temperature Penetration Resistance", equipment, procedures and test diagrams have been added (see 29.3 and 29.5).
r) For ease of use, in Chapter 30 "Volatile Content", equipment has been added (see 30.1).
s) Taking into account the actual needs of our country, in Chapter 32 "Combustibility", the "sample distance from the top of the burner 9.5mm" is changed to "sample distance
The tip of the burner is 10mm" (see 32.1.5); test method B has been added (see 32.2).
t) For ease of use, in Chapter 33 "Hygroscopicity in Moist Air", the calculation formula for the result has been added (see 33.3.3).
The following editorial changes have been made to this document.
--- In order to coordinate with existing standards, the standard name is revised to "Electrical Insulating Film Part 2.Test Methods."
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Insulation Material Standardization Technical Committee (SAC/TC51).
Drafting organizations of this document. Guilin Saimeng Testing Technology Co., Ltd., Global Energy Internet Research Institute Co., Ltd., Sichuan Dongcai Technology Co., Ltd.
Group Co., Ltd., Quanzhou Jiadeli Electronic Materials Co., Ltd., Zhejiang Nanyang Technology Co., Ltd., Jiangsu Yuxing Film Technology Co., Ltd.
Company, Anhui Tongfeng Electronics Co., Ltd., Guilin Electrical Apparatus Research Institute Co., Ltd., Guilin Power Capacitor Co., Ltd., CRRC
Yongji Electric Co., Ltd., Taizhou Yuming New Material Co., Ltd., Dongfang Electric Group Dongfang Electric Co., Ltd., Guangxi Nanbaote Electric Manufacturing
Co., Ltd., China Southern Power Grid Co., Ltd. EHV Transmission Company, Xiamen Farah Electronics Co., Ltd., Guangdong Yisheng Testing Co., Ltd.
Co., Ltd., Shaanxi Runzheng Testing Technology Co., Ltd., Yiwu Yuantai Intelligent Technology Co., Ltd., Xi'an Kaijinzhe Testing Co., Ltd., Guangdong Quanqing
Testing Co., Ltd., Guangdong Yonghui Technology Co., Ltd.
The main drafters of this document. Wang Xianfeng, Song Yuxia, Zhao Jie, Xing Liangliang, Li Jiexia, Luo Chuanyong, Sun Yu, Ji Yuping, Zhou Yuli, Wenyu,
Huang Zezhong, Ding Bangjian, Meng Zhao, Chu Songchao, Chen Song, Shi Kaihua, Hou Xiaojun, Zhu Yongming, He Mingpeng, Tang Shiping, Deng Jun, Huang Shunda, Xiang Xiaoyun,
Deng Daicong, Chen Shuangjie, Zhang Zhihuan, Peng Yijun, Chen Ying.
The previous releases of this document and the documents it replaced are as follows.
---First published as GB/T 13541-1992 in.1992;
--- The first revision in.2009 was GB/T 13542.2-2009;
---This is the second revision.
Introduction
The electrical insulation film standards are widely used in the research and development, production, quality inspection, sales, acceptance and technical exchanges of this series of products.
GB/T 13542.2-2009 mainly solves the problem that the standard is too long because of its long standard age, and many contents need to be based on new changes in the current product test method.
The actual needs and urgent need to amend and improve the problem, IEC also launched IEC 60674-2.2019 (version 2.1) according to technological development, so it is necessary
Follow the changes in international standards to revise the original national standards. The revised standard can ensure its timeliness and scientificity, and it is suitable for electrical insulating films.
The test method standards have been re-regulated, which can guide the industry to more effectively carry out the testing and evaluation of electrical insulating films, which can improve electrical
The quality and application reliability of gas insulating film products.
Electrical insulating films involve many types of products, and the corresponding IEC 60674 (Plastic Film Specification for Electrical Uses) standard is divided into different parts.
Compiled separately (or articles), in order to maintain the basic consistency with the corresponding IEC standard compilation method, plus the technical performance of different types of film products
The requirements are also different, and different parts need to be listed separately when compiling this product standard.
GB/T 13542 specifies the definition and general requirements, test methods, and product standards of individual materials for electrical insulating films.
Partial composition.
---Part 1.Definitions and general requirements. The purpose is to determine the terms and definitions and general requirements of electrical insulating films.
---Part 2.Test method. The purpose is to determine the test method for electrical insulating films.
---Part 3.Biaxially oriented polypropylene film for capacitors. The purpose is to determine the classification of biaxially oriented polypropylene film for capacitors
And naming, size, performance requirements and film characteristics.
---Part 4.Polyester film. The purpose is to determine the classification, size, performance requirements and film characteristics of polyester film for electrical insulation.
---Part 6.Polyimide film for electrical insulation. The purpose is to determine the classification and naming and size of polyimide film for electrical insulation
Dimensions, performance requirements and film roll characteristics.
Films for electrical insulation. Part 2.Test methods
1 Scope
This document describes the test methods for films used for electrical insulation.
This document applies to films for electrical insulation.
2 Normative references
The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 451.3 Measurement of paper and cardboard thickness (GB/T 451.3-2002, idtISO 534.1988)
GB/T 1033.1 Determination of the density of plastic non-foam plastics Part 1.Immersion method, liquid pycnometer method and titration method
(GB/T 1033.1-2008, ISO 1183-1.2004, IDT)
GB/T 1040.3-2006 Determination of tensile properties of plastics Part 3.Test conditions for films and sheets (ISO 527-3.
1995, IDT)
GB/T 1310.2-2009 Impregnated fabrics for electrical purposes Part 2.Test methods (IEC 60394-2.1972, IDT)
GB/T 1408.1-2016 Insulating material electric strength test method Part 1.Power frequency test (IEC 60243-1.2013,
IDT)
GB/T 1408.2 Insulating material electric strength test method Part 2.Additional requirements for applied DC voltage test
(GB/T 1408.2-2016, IEC 60243-2.2013, IDT)
GB/T 1409-2006 Determines the permittivity and dielectric loss of electrical insulating materials at power frequency, audio frequency, and high frequency (including meter wave wavelength)
Recommended method of dissipation factor (IEC 60250.1969, MOD)
GB/T 6672 Plastic film and sheet thickness determination mechanical measurement method (GB/T 6672-2001, idtISO 4593.1993)
GB/T 6673 Determination of the length and width of plastic films and sheets (GB/T 6673-2001, idtISO 4592.1992)
GB/T 7196 Test method for determination of ionic impurities in electrical insulating materials by liquid extraction (GB/T 7196-2012, IEC 60589.
1997, IDT)
GB/T 10006 Plastic film and sheet friction coefficient determination method (GB/T 10006-2021, ISO 8295.1995, IDT)
GB/T 10580-2015 Standard conditions for solid insulating materials before and during the test (IEC 60212.2010, IDT)
GB/T 10582 Test method for electrical insulating materials to determine electrolytic corrosion caused by insulating materials (GB/T 10582-2008,
IEC 60426.2007, IDT)
GB/T 11026 (all parts) Heat resistance of electrical insulating materials [IEC 60216 (all parts)]
GB/T 13542.3 Films for electrical insulation Part 3.Biaxially oriented polypropylene film for capacitors (GB/T 13542.3-
2006, IEC 60674-3-1..1998, MOD)
GB/T 13542.4 Film for electrical insulation Part 4.Polyester film (GB/T 13542.4-2009, IEC 60674-3-2.
1992, MOD)
GB/T 13542.6 Film for electrical insulation Part 6.Polyimide film for electrical insulation (GB/T 13542.6-2006,
IEC 60674-3-4/6.1993, MOD)
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