GB/T 4074.4-2024 English PDFUS$354.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4074.4-2024: Test methods of winding wires - Part 4: Chemical properties Status: Valid GB/T 4074.4: Historical versions
Basic dataStandard ID: GB/T 4074.4-2024 (GB/T4074.4-2024)Description (Translated English): Test methods of winding wires - Part 4: Chemical properties Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K12 Classification of International Standard: 29.060.10 Word Count Estimation: 18,118 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 4074.4-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 4074.4-2024: Test methods of winding wires - Part 4: Chemical properties---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 29:060:10 CCSK12 National Standards of People's Republic of China Replaces GB/T 4074:4-2008 Winding wire test methods Part 4: Chemical properties (IEC 60851-4:2016, Winding wires-Test methods- Part 4: Chemical properties, IDT) Released on 2024-04-25 2024-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test Method 12: Solvent Resistance 1 4:1 Overview 1 4:2 Test equipment 2 4:3 Test Procedure 2 5 Test method 16: Refrigerant resistance 3 5:1 Overview 3 5:2 Extraction 3 5:3 Breakdown voltage 6 6 Test method 17: Direct solderability 6 6:1 Overview 6 6:2 Test equipment 7 6:3 Test procedures 7 7 Test Method 20: Hydrolysis and transformer oil resistance 8 7:1 Overview 8 7:2 Round wire 8 7:3 Flat wire 9 Appendix A (Informative) Alternative refrigerants to chlorodifluoromethane 11 Reference 12ForewordThis 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 is part 4 of GB/T 4074 "Test methods for winding wires": GB/T 4074 has been published in the following parts: --- Part 1: General provisions; --- Part 2: Dimensional measurement; --- Part 3: Mechanical properties; --- Part 4: Chemical properties; --- Part 5: Electrical properties; --- Part 6: Thermal properties; --- Part 7: Test method for determining the temperature index of enameled winding wire; --- Part 8: Test method for determination of temperature index of enameled winding wire - Rapid method; --- Part 21: High frequency pulse voltage resistance: This document replaces GB/T 4074:4-2008 "Test methods for winding wires Part 4: Chemical properties" and is compatible with GB/T 4074:4-2008 Compared with the previous version, in addition to structural adjustments and editorial changes, the main technical changes are as follows: --- Added general principles for refrigerant resistance test (see 5:1); --- Added other refrigerants in the refrigerant resistance test (see 5:1); --- Changed the test procedure for refrigerant resistance test (see 5:2:4, 4:1:4 of the:2008 edition); --- Added an overview of direct solderability test (see 6:1); --- Changed the free length between the holding points in the direct solderability test equipment (see 6:2, 5:1 of the:2008 edition); --- Deleted the sample preparation for direct solderability test (see 5:2 in the:2008 edition); --- Added an overview of hydrolysis resistance and transformer oil resistance tests (see 7:1); --- Changed the test equipment in "hydrolysis resistance and transformer oil resistance test" (see 7:2:1, 6:1:1 of the:2008 edition); --- Changed the test procedure for hydrolysis resistance of flat wire (see 7:3:3:1, 6:2:3:1 of the:2008 edition): This document is equivalent to IEC 60851-4:2016 "Test methods for winding wires - Part 4: Chemical properties": A new chapter “Terms and Definitions” has been added to this document: The following minimal editorial changes were made to this document: --- In order to coordinate with the existing standards, the name of the standard is changed to "Test methods for winding wires Part 4: Chemical properties": 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 Wire and Cable (SAC/TC213): This document was drafted by: Shanghai Cable Research Institute Co:, Ltd:, Datong (Fujian) New Materials Co:, Ltd:, Xiandeng Hi-Tech Electric Co:, Ltd: Co:, Ltd:, Shanghai Yusheng Special Wire Co:, Ltd:, Jiangsu Jiahe Electronic Materials Co:, Ltd:, Ningbo Jintian New Materials Co:, Ltd:, Guangdong Wei Qi Electrical Materials Co:, Ltd:, Shanghai Guolan Testing Co:, Ltd:, and Shanghai Yangtong Electrical Equipment Co:, Ltd: The main drafters of this document are: Xie Li, Zheng Ying, Liu Wei, Tang Haifeng, Wang Chengyi, Li Jun, Xue Feng, Pan Guoliang, Zhang Yanfeng, Li Jiaxing, Zhu Ranran, Li Fu: The previous versions of the documents replaced by this document are as follows: ---First published in:1999 as GB/T 4074:4-1999; ---2008 was the first revision; ---This is the second revision:IntroductionWinding wire is one of the main raw materials for power, motor, electrical appliances, home appliances, electronics, communications, transportation, power grid, aviation and other fields: It has a wide range and covers many fields, and has become an important mechanical industrial product: GB/T 4074 Winding Wire Test Methods is the only test method standard for measuring winding wire products in China: It is very important for product testing and market regulation: It plays an important role in both market and product improvement: GB/T 4074 aims to establish the test method standards for the performance of different types of winding wire products and is intended to consist of the following 9 parts: --- Part 1: General provisions: The purpose is to establish the terms, definitions and general test principles for winding wire test methods: --- Part 2: Dimensional measurement: The purpose is to establish test methods for measuring the dimensions of different products of winding wire: --- Part 3: Mechanical properties: The purpose is to establish test methods for the mechanical properties of different types of winding wire products: --- Part 4: Chemical properties: The purpose is to establish the test methods for the chemical properties of different types of winding wire products: --- Part 5: Electrical properties: The purpose is to establish test methods for the electrical properties of different types of winding wire products: --- Part 6: Thermal properties: The purpose is to establish test methods for the thermal properties of different types of winding wire products: --- Part 7: Test method for determining the temperature index of enameled winding wire: The purpose is to establish a method for determining the temperature index of enameled winding wire: Test procedures: --- Part 8: Test method for determining the temperature index of enameled winding wire: Rapid method: The purpose is to establish the determination of the temperature index of enameled winding wire: Rapid test procedure for the sensitivity index: --- Part 21: High-frequency impulse voltage resistance performance: The purpose is to establish the test method for the high-frequency impulse voltage resistance performance of winding wires: Winding wire test methods Part 4: Chemical properties1 ScopeThis document describes the following test methods for winding wires: ---Test method 12: Solvent resistance ---Test method 16: Refrigerant resistance ---Test method 17: Direct solderability ---Test method 20: Transformer oil resistance For terms, definitions, general principles for test methods and a catalogue of test methods for winding wires, see IEC 60851-1:2 Normative referencesThe 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 4074:3-2024 Winding wire test methods Part 3: Mechanical properties (IEC 60851-3:2023, IDT) Note: There is no technical difference between the referenced content of GB/T 4074:3-2024 and the referenced content of IEC 60851-3:2009: GB/T 4074:5-2024 Winding wire test methods Part 5: Electrical properties (IEC 60851-5:2019, IDT) Note: There is no technical difference between the referenced content of GB/T 4074:5-2024 and the referenced content of IEC 60851-5:2008: Note: GB/T 20422-2018 Lead-free solder (ISO 9453:2014, MOD) Note: GB 2536-2011 Unused mineral insulating oils for electrical fluid transformers and switches (IEC 60296:2003, MOD) Note: GB/T 20628:1-2006 Specification for cellulose paper for electrical use Part 1: Definitions and general requirements (IEC 60554-1:1977, MOD)3 Terms and definitionsThere are no terms or definitions that require definition in this document: 4 Test Method 12: Solvent Resistance 4:1 Overview This test is applicable to enameled round wire and enameled rectangular wire with a conductor nominal diameter greater than 0:250 mm: This test is not applicable to enameled round wires with a nominal conductor diameter less than or equal to 0:250 mm: Solvent resistance is expressed by the pencil hardness of the enameled wire after solvent treatment: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4074.4-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 4074.4-2024_English as soon as possible, and keep you informed of the progress. 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