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GB/T 13542.2-2021 English PDF

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GB/T 13542.2-2021: Plastic films for electrical purposes - Part 2: Methods of test
Status: Valid

GB/T 13542.2: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 13542.2-2021989 Add to Cart 7 days Plastic films for electrical purposes - Part 2: Methods of test Valid
GB/T 13542.2-2009RFQ ASK 7 days Film for electrical insulation -- Part 2: Methods of test Obsolete

Similar standards

GB/T 20632.2   GB/T 20632.3   GB/T 11026.1   GB/T 13542.4   GB/T 13542.5   GB/T 13542.4   

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 Yish......
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