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GB/T 6109.11-2025: Enamelled round winding wire - Part 11: Solderable polyurethane enamelled round copper wireovercoated with polyamide, class 155
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GB/T 6109.11: Evolution and historical versions
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 6109.11-2025 | English | 274 |
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Enamelled round winding wire - Part 11: Solderable polyurethane enamelled round copper wireovercoated with polyamide, class 155
| Valid |
| GB/T 6109.11-2008 | English | 174 |
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Enamelled round winding wire -- Part 11: Solderable polyurethane enamelled round copper wire overcoated with polymide, class 155
| Valid |
| GB/T 6109.11-1990 | English | 279 |
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Enamelled round winding wires--Part 11: Polyester (imide) enamelled round copper wires overcoated with polyamide-imide, class 200
| Obsolete |
Basic data | Standard ID | GB/T 6109.11-2025 (GB/T6109.11-2025) | | Description (Translated English) | Enamelled round winding wire - Part 11: Solderable polyurethane enamelled round copper wireovercoated with polyamide, class 155 | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K12 | | Classification of International Standard | 29.060.01 | | Word Count Estimation | 14,173 | | Date of Issue | 2025-10-05 | | Date of Implementation | 2026-05-01 | | Older Standard (superseded by this standard) | GB/T 6109.11-2008 | | Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China | GB/T 6109.11-2025: Enamelled round winding wire - Part 11: Solderable polyurethane enamelled round copper wireovercoated with polyamide, class 155
---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 29.060.01
CCSK12
National Standards of the People's Republic of China
Replaces GB/T 6109.11-2008
Enameled round winding wire
Part 11.Grade 155 Polyamide Composites
Direct welding of polyurethane enameled copper round wire
(with polyamide, class 155, IDT)
Released on October 5, 2025; to be implemented on May 1, 2026.
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction V
1.Scope 1
2 Normative References 1
3.Terms, Definitions, General Rules, and Appearance 1
4 Dimensions 2
5 resistors 2
6.Elongation 2
7 Resilience 2
8.Flexibility and adhesion 2
9.Thermal shock 2
10 Softening and Breakdown 2
11.Scratch resistance (conductor nominal diameter 0.250mm and above, 1.600mm and below) 2
12 Solvent resistant 3
13 Breakdown voltage 3
14.Coating film continuity 5
Temperature index 5
16.Refrigerant 5
17.Direct weldability 5
18.Thermal bonding or solvent bonding 5
19.Dielectric loss coefficient 5
20 Transformer oil resistant 5
21 Weightlessness 5
23.Pinhole Test 6
30 packs 6
References 7
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is Part 11 of GB/T 6109 "Enamelled Round Winding Wire". GB/T 6109 has already published the following parts.
---Part 1.General Provisions;
---Part 2.Grade 155 Polyester Enameled Copper Round Wire;
---Part 3.Grade 120 acetal enameled copper round wire;
---Part 4.Grade 130 direct-welding polyurethane enameled copper round wire;
---Part 5.Grade 180 Polyesterimide Enameled Copper Round Wire;
---Part 6.Grade 220 polyimide enameled copper round wire;
---Part 7.130L grade polyester enameled copper round wire;
---Part 9.Grade 130 Polyamide Composite Direct Soldering Polyurethane Enameled Copper Round Wire;
---Part 10.Grade 155 direct-welding polyurethane enameled copper round wire;
---Part 11.Grade 155 Polyamide Composite Direct Soldering Polyurethane Enameled Copper Round Wire;
---Part 12.Grade 180 polyamide composite polyester or polyesterimide enameled copper round wire;
---Part 13.Grade 180 direct-welding polyesterimide enameled copper round wire;
---Part 14.Grade.200 polyamide-imide enameled copper round wire;
---Part 15.Grade 130 self-adhesive direct-soldering polyurethane enameled copper round wire;
---Part 16.Grade 155 self-adhesive direct-soldering polyurethane enameled copper round wire;
---Part 17.Grade 180 self-adhesive direct-soldering polyesterimide enameled copper round wire;
---Part 18.Grade 180 self-adhesive polyesterimide enameled copper round wire;
---Part 19.Grade.200 self-adhesive polyamide-imide composite polyester or polyesterimide enameled copper round wire;
---Part 20.Grade.200 polyamide-imide composite polyester or polyesterimide enameled copper round wire;
---Part 21.Grade.200 Polyester-Amide-Imine Enameled Copper Round Wire;
---Part 22.Grade 240 Aromatic Polyimide Enameled Copper Round Wire;
---Part 23.Grade 180 direct-welding polyurethane enameled copper round wire.
This document replaces GB/T 6109.11-2008 "Enamelled Round Winding Wire - Part 11.Grade 155 Polyamide Composite Direct Welding Polyurethane Enamelled Wire".
Compared with GB/T 6109.11-2008, the main technical changes in "Copper Round Wire" are as follows, except for structural adjustments and editorial modifications.
---Added "Method for Representing Linear Products" (see 3.2.2);
---The technical requirements for the "dielectric loss factor" have been changed (see Chapter 19, Chapter 19 of the.2008 edition);
---The technical requirements for the “pinhole test” have been changed (see Chapter 23, Chapter 23 of the.2008 edition).
This document is equivalent to IEC 60317-21.2019 "Special winding wire product standard Part 21.155 grade polyamide composite direct welding polyamide".
"Urban ester enameled copper round wire".
The following minimal editorial changes have been made to this document.
---To harmonize with existing standards, the standard name has been changed to "Enameled Round Winding Wire Part 11.Grade 155 Polyamide Composite Direct Welding Polyamide".
Ester-coated copper round wire.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no 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 on Standardization of Wires and Cables (SAC/TC213).
This document was drafted by. Shanghai Cable Research Institute Co., Ltd., Jiangsu Datong Electromechanical Co., Ltd., and Xiandeng High-Tech Electric Co., Ltd.
Zhuhai Rongsheng Ultra-Micro Wire Co., Ltd., Zhejiang Great Wall Electric Technology Co., Ltd., Tongling Jingda Special Electromagnetic Wire Co., Ltd.
Luxiao Technology Co., Ltd., Jufeng Electrical Materials (Yangzhou) Co., Ltd., Henan Huayang Electrical Technology Group Co., Ltd., Zhejiang Hongbo Technology
Technology Co., Ltd., Shanghai Yusheng Special Wire Co., Ltd., Shandong Saite Electric Co., Ltd., Shenyang Hongyuan Electromagnetic Wire Co., Ltd.
The company, Shanghai Guolan Testing Co., Ltd.
The main drafters of this document are. Zhang Zhao, Xiao Xianxiong, Liu Wei, Huang Guiming, Yao Guihua, Zhang Wei, Zhang Dongxu, Li Huiwen, Du Mingxin, and Yan Qinhua.
Tang Haifeng, He Jun, Yang Xuqing, Zhu Ranran, Peng Bo.
The release history of this document and the document it replaces is as follows.
---First published in.2008 as GB/T 6109.11-2008;
---This is the first revision.
Introduction
Enamelled round winding wire is a major supporting raw material in the fields of power, motors, electrical appliances, home appliances, electronics, communications, transportation, power grids, and aviation.
First, it has a wide range of applications and covers many fields, and has become an important mechanical industrial product.
GB/T 6109 "Enamelled Round Winding Wire" is an important basic standard for enamelled round winding wire products, and it is proposed to consist of the following 22 parts.
---Part 1.General Requirements. This section specifies the performance requirements for self-adhesive or non-self-adhesive enameled copper round windings.
---Part 2.Grade 155 Polyester Enameled Copper Round Wire. The purpose is to specify Grade 155 enameled copper wire with a single enamel layer based on polyester resin.
Performance requirements for circular wires.
---Part 3.Grade 120 Acetal Enameled Copper Round Wire. The purpose is to specify Grade 120 for single-layer enamel coatings based on polyvinyl acetal resin.
Performance requirements for enameled copper round wire.
---Part 4.Grade 130 direct-soldering polyurethane enameled copper round wire. The purpose is to specify Grade 130 single-layer polyurethane resin-based enamel coatings.
Performance requirements for direct-welded enameled copper round wire.
---Part 5.Grade 180 Polyesterimide Enameled Copper Round Wire. The purpose is to specify Grade 180 for single-layer polyesterimide enamel coatings.
Performance requirements for enameled copper round wire.
---Part 6.Grade 220 Polyimide Enameled Copper Round Wire. The purpose is to specify Grade 220 for single-layer polyimide enamel coatings.
Performance requirements for enameled copper round wire.
---Part 7.130L Grade Polyester Enameled Copper Round Wire. The purpose is to specify 130L grade enameled wire with a single enamel coating based on polyester resin.
Performance requirements for copper round wire.
---Part 9.Grade 130 Polyamide Composite Direct Soldering Polyurethane Enameled Copper Round Wire. The purpose is to specify the grade 130 direct soldering enamel wire with a double-layer coating.
The performance requirements for copper-clad round wires include a primer layer based on polyurethane resin and a topcoat layer based on polyamide resin.
---Part 10.Grade 155 direct-soldering polyurethane enameled copper round wire. The purpose is to specify Grade 155 single-coat polyurethane resin-based wires.
Performance requirements for direct-welded enameled copper round wire.
---Part 11.Grade 155 Polyamide Composite Direct Soldering Polyurethane Enameled Copper Round Wire. The purpose is to specify the grade 155 direct soldering enamel wire with a double-layer coating.
The performance requirements for copper-clad round wires include a primer layer based on polyurethane resin and a topcoat layer based on polyamide resin.
---Part 12.Grade 180 polyamide composite polyester or polyesterimide enameled copper round wire. The purpose is to specify a Grade 180 enameled wire with double coatings.
The performance requirements for copper-clad round wires include a primer layer based on polyester or polyesterimide resin and a topcoat layer based on polyamide resin.
---Part 13.Grade 180 direct-soldering polyesterimide enameled copper round wire. The purpose is to specify a single-layer enamel coating based on polyesterimide resin.
Performance requirements for Grade 180 direct-welding enameled copper round wire.
---Part 14.Grade.200 polyamide-imide enameled copper round wire. The purpose is to specify single-component polyamide-imide resin-based...
Performance requirements for.200-grade enameled copper round wire.
---Part 15.Grade 130 Self-adhesive Direct Soldering Polyurethane Enamelled Copper Round Wire. The purpose is to specify Grade 130 self-adhesive direct soldering wire with double coating.
The performance requirements for enameled copper round wires include a primer layer based on polyurethane resin and a topcoat layer based on thermoplastic resin, which is a self-adhesive layer.
---Part 16.Grade 155 Self-Adhesive Straight Solderable Polyurethane Enameled Copper Round Wire. The purpose is to specify Grade 155 self-adhesive straight solderable wire with double coating.
The performance requirements for enameled copper round wires include a primer layer based on polyurethane resin and a topcoat layer based on thermoplastic resin, which is a self-adhesive layer.
---Part 17.Grade 180 Self-adhesive Straight Solderable Polyesterimide Enameled Copper Round Wire. The purpose is to specify Grade 180 self-adhesive straight solderable wire with double coating.
The performance requirements for soldering enameled copper round wires, wherein the primer layer is based on polyesterimide resin and the topcoat layer is based on thermoplastic resin.
Adhesive layer.
---Part 18.Grade 180 self-adhesive polyesterimide enameled copper round wire. The purpose is to specify the grade 180 self-adhesive enameled copper wire with double coating.
The performance requirements for round wires include a primer layer based on polyesterimide resin and a topcoat layer based on thermoplastic resin, which is a self-adhesive layer.
---Part 19.Grade.200 self-adhesive polyamide-imide composite polyester or polyesterimide enameled copper round wire. The purpose is to specify the three-layer coating.
The performance requirements for grade.200 enameled copper round wires include a primer layer based on polyester or polyesterimide resin, and an intermediate layer based on polyamide.
A self-adhesive layer with an imide resin base and a topcoat layer based on a thermoplastic or thermosetting resin.
---Part 20.Grade.200 polyamide-imide composite polyester or polyesterimide enameled copper round wire. The purpose is to specify double-layer enameling.
The performance requirements for Grade.200 enameled copper round wire include a primer layer based on polyester or polyesterimide resin, and a topcoat layer based on polyamide-imide resin.
It is based on amine resin.
---Part 21.Grade.200 Polyester-Amide-Imine Enameled Copper Round Wire. The purpose is to specify the type of polyester-amide-imide resin-based...
Performance requirements for a single-layer,.200-grade enameled copper round wire.
---Part 22.Grade 240 Aromatic Polyimide Enameled Copper Round Wire. The purpose is to specify single-component aromatic polyimide resin-based...
Performance requirements for 240-grade enameled copper round wire.
---Part 23.Grade 180 direct-soldering polyurethane enameled copper round wire. The purpose is to specify Grade 180 for single-layer polyurethane resin-based enamel coatings.
Performance requirements for direct-welded enameled copper round wire.
This document needs to be used in conjunction with GB/T 6109.1-2025.
Enameled round winding wire
Part 11.Grade 155 Polyamide Composites
Direct welding of polyurethane enameled copper round wire
1 Scope
This document specifies the requirements for double-coated 155-grade direct-soldering enameled copper round wire. The primer layer is based on polyurethane resin; if the original...
If the resin's chemical properties meet all the requirements specified for the enameled wire, then the resin can be modified. The topcoat layer is based on polyamide resin.
Note. Modified resin is a resin that has undergone chemical changes or contains one or more additives to improve its certain properties or performance characteristics.
The nominal diameter range of conductors specified in this document is.
---Level 1.0.050mm and above to 1.600mm and below;
---Level 2.0.050mm and above to 1.600mm and below.
The nominal diameter of the conductor shall conform to the provisions of Chapter 4 of GB/T 6109.1-2025.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 6109.1-2025 Enamelled round windings – Part 1.General requirements (IEC 60317-0-1.2019, IDT)
Note. The content referenced in GB/T 6109.1-2025 has no technical differences from the content referenced in IEC 60317-0-1.2013.
3.Terms, Definitions, General Rules and Appearance
3.1 Terms and Definitions
The terms and definitions defined in GB/T 6109.1-2025 apply to this document.
3.2 General Rules
3.2.1 Test Methods
Section 3.2.1 of GB/T 6109.1-2025 applies.
If there is any conflict between GB/T 6109.1-2025 and this document, this document shall prevail.
3.2.2 Method for representing winding wire products
Class 155 indicates the thermal class, which requires a minimum temperature index of 155 and a thermal shock temperature of at least 175°C.
The Celsius temperature corresponding to the temperature index is not necessarily the recommended operating temperature for enameled wire, as this depends on factors including the type of equipment used.
Many internal factors.
3.3 Appearance
Section 3.3 of GB/T 6109.1-2025 applies.
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