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GB/T 33594-2025: Charging cables for electric vehicles
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Similar standards

GB/T 31489.4 | GB/T 34016 | GB/T 32129 | GB/T 33596 |

GB/T 33594-2025: Charging cables for electric vehicles

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ICS 29.060.20 CCSK13 National Standards of the People's Republic of China Replaces GB/T 33594-2017 Electric vehicle charging cable Published on 2025-10-05 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3 Terms and Definitions 4.Usage Features 5.Codes, Model Numbers, and Product Representation Methods 6.Technical Requirements 7. 7 Cable marking 13 8.Insulated wire core identification 13 9.Routine test 15 10 Sampling test 15 11 Type testing 16 12 Inspection Rule 32 13 Packaging, transportation and storage 34 Appendix A (Normative) Insulation Hardness Test 35 Appendix B (Normative) Acid and Alkali Resistance Test Methods 37 Appendix C (Normative) Hydrolysis Resistance Test Method 38 Appendix D (Normative) Sheath Tear Resistance Test Method 39 Appendix E (Normative) Saponification Test Method 41 Appendix F (Normative) Test Methods for Compatibility of Coolant and Materials 43 Appendix G (Normative) Cable Sheath Thickness and Dimensions 45

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 replaces GB/T 33594-2017 "Cables for Charging Electric Vehicles". Compared with GB/T 33594-2017, the main differences are in the structural design. Aside from editorial changes, the main technical changes are as follows. ---The rated voltage range of the product and the scope of application of the standard have been expanded (see Chapter 1); ---Added explanation of recommended sheath material codes in the scope of material application (see Table 1); ---Added the product code "LCC DC liquid-cooled charging" (see 5.1.1); ---Change the material designation EY to "thermosetting halogen-free synthetic materials" (see 5.1.3,.2017 version 5.1.3); ---Add structural characteristic designations “X” and “Ⅱ” (see 5.1.5); ---The recommended models for overall shielding structures containing "P" in the model designation have been removed (see Table 2 in the.2017 edition); ---The nominal cross-sectional area of each core type of DC charging cable has been changed (see Table 3,.2017 version of Table 3); ---Added descriptions of commonly used non-standard conductor requirements for DC charging cables, as well as conductor requirements for liquid-cooled charging cables (see 6.1); ---Added requirements for insulation thickness uniformity when the liquid cooling pipe and conductor are in contact (see 6.3.3); ---Added requirements for the nominal insulation thickness of AC 0.6/1kV and DC 1.5kV voltage level cables (see Table 4); ---The braided structure of composite shielded bare copper wire for signal or control conductors has been removed (see 6.4.1 in the.2017 version); ---A method for calculating weaving density has been added (see 6.4.1); ---The requirement that the insulation material of the signal or control conductor be "consistent with the main insulation material" has been removed (see 6.4.2 in the.2017 version); ---A new section on "Liquid Cooling Tubing" has been added (see 6.5); ---Change "inner sheath" to "inner liner" (see 6.7, 6.6 in the.2017 edition); ---The mechanical and physical performance requirements for the inner protective layer have been removed (see 6.6.2 in the.2017 edition); ---The requirement for inner sheath thickness has been removed (see 6.6.3 in the.2017 version); ---Change "Total Shielding" to "Total Braided Layer" (see 6.8, 6.7 in the.2017 version); ---A new section on sheath structure has been added (see 6.9.1); ---Added requirements for sheath spark testing (see 6.9.4); ---Added relevant labeling requirements for liquid-cooled charging cables (see 7.1); ---The requirement that "each insulated core of the cable should be a different color" in the general requirements for color spectrum has been removed (see the.2017 version). 8.2.2); ---Added requirements for the color markings of the main insulation and grounding protection conductors of DC charging cables (see 8.2.2); ---The requirement that other conductor colors "be different from the main insulated conductor color" has been removed (see 8.2.2 in the.2017 version); ---The voltage test requirements in routine tests have been changed (see 9.2,.2017 version 9.2); ---Added "Liquid Cooling Pipe Withstand Voltage Test", "Liquid Cooling Pipe Insulation Resistance", and "DC Charging Cable Inductance Test" (see 11.2.2.3, 11.2.4.2) (and 11.2.7); ---Added voltage test requirements and long-term DC withstand voltage application for AC 0.6/1kV, DC 1.0kV and 1.5kV cables. Requirements (see Table 8); ---The thermal elongation test temperature for insulation material EY has been changed (see Table 9, Table 13 in the.2017 edition); ---The low-temperature test temperature for insulation material S and sheath material S is changed to "-30℃" (see Tables 9 and 10,.2017 edition). Tables 13 and 14); ---Change the xenon arc lamp irradiation intensity for the artificial climate aging test to "not less than (60±2) W/m2", and change it to "no xenon arc lamp irradiation" when spraying water. The phrase "sunlight" has been changed to "irradiated by a xenon arc lamp, blackboard temperature uncontrolled" (see 11.5.3,.2017 version 11.5.3). ---The cable's resistance to crushing has been enhanced by adding vehicle crush test requirements (see 11.5.7.2); ---Added requirements for liquid cooling pipe burst pressure testing after compression and sway tests (see 11.7.5.2 and 11.7.5.3); ---Added requirements for flame retardant testing of individual cables (see 11.5.8); ---Added burst pressure test for liquid-cooled charging cable liquid-cooled tubes (see 11.5.9); ---A torsional stretch test for DC charging cables has been added (see 11.5.10); ---A cable current carrying capacity test has been added (see 11.5.11); ---Added acid and alkali resistance test methods (see Appendix B); ---A hydrolysis resistance test method has been added (see Appendix C); ---Added a test method for the compatibility of coolant and materials (see Appendix F); ---The cable sheath thickness and external dimensions have been increased (see Appendix G). 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 Guolan Testing Co., Ltd., Shanghai Cable Research Institute Co., Ltd., Guangzhou Cable Co., Ltd., and Jiangsu... Shangshang Cable Group Co., Ltd., Zhongtian Technology Equipment Cable Co., Ltd., China Quality Certification Center Co., Ltd., Wuxi Xinhongye Cable Technology Co., Ltd. Technology Co., Ltd., Jiangsu Zhongli Group Co., Ltd., Jinbei Electric Hengyang Cable Co., Ltd., Changzhou Marine Cable Co., Ltd. Company, Zhejiang Zhengtai Cable Co., Ltd., Guangdong Tianhong Cable Co., Ltd., Zhejiang Wanma Special Cable Technology Co., Ltd., Yangzhou Yaguang Cable Co., Ltd. Limited Company, Guangdong Nanlan Cable Co., Ltd., Changsha Hengfei Cable Co., Ltd., Jiangxi Copper (Guangzhou) Optoelectronic Technology Co., Ltd., Guangdong Aomeige Transmission Guide Technology Co., Ltd., TÜV Rheinland (Shanghai) Co., Ltd., Phoenix Contact (Nanjing) New Energy Vehicle Technology Co., Ltd., and DEKRA Quality Certification (Shanghai) Co., Ltd., Shanghai Jieli New Material Technology Co., Ltd., Wuxi Mingzhu Cable Co., Ltd., and Haolishi Wire Assembly (Suzhou) Co., Ltd., Jiangsu Hengtong Electronic Wire & Cable Technology Co., Ltd., Far East Cable Co., Ltd., Sichuan Yonggui Technology Co., Ltd., Wuxi Jie Kexin Materials Co., Ltd. The main drafters of this document are. Li Na, Guo Rongrong, Zhu Xudong, Liu Yufeng, Zhang Guangzhu, Xu Pengfei, Xie Zhiguo, Cui Jiude, and Sun Jianyu. Hu Shaozhong, Zhang Rui, Tao Ruixiang, Liang Mingchun, Liu Fenghua, Lu Yonglin, Ke Zhixin, Xia Haojie, Chen Faxin, Yang Xu, Hong Jian, Lu Bin, He Wenbin Chen Junjie, Feng Yaocai, Wang Gang, Qian Ziming, Chen Xingwu, Ouyang Xuemei, You Yong, Li Chungang, Guan Lili. The release history of this document and the document it replaces is as follows. ---First published in.2017 as GB/T 33594-2017. ---This is the first revision. Electric vehicle charging cable

1 Scope

This document specifies the usage characteristics, representation methods, technical requirements, markings, test methods and requirements, and inspection procedures for electric vehicle charging cables. Rules, as well as packaging, transportation, and storage. This document applies to conductive charging connection devices for electric vehicles with rated voltages of AC 0.6/1kV and below, and DC 1.5kV and below. Charging cables (including signal or control conductors) are also suitable for electric vehicles with discharge capabilities, for use with external conductive discharge devices. Discharge cables with AC voltage of 0.6/1kV and below, and DC voltage of 1.5kV and below.

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 1690-2010 Test methods for resistance to liquids in vulcanized or thermoplastic rubber GB/T 2423.3-2016 Environmental Testing - Part 2.Test Methods - Test Cab. Constant Damp Heat Test GB/T 2900.10 Electrical Terminology - Cables GB/T 3048.4 Electrical Performance Test Methods for Wires and Cables - Part 4.DC Resistance Test of Conductors GB/T 3048.5 Electrical Performance Test Methods for Wires and Cables - Part 5.Insulation Resistance Test GB/T 3048.8 Electrical Performance Tests for Wires and Cables - Part 8.AC Voltage Tests GB/T 3048.9 Electrical Performance Test Methods for Wires and Cables - Part 9.Spark Test of Insulated Cores GB/T 3048.14 Electrical Performance Test Methods for Wires and Cables - Part 14.DC Voltage Test GB/T 3956 Conductors of Cables GB/T 4909.2-2009 Bare wires - Test methods - Part 2.Dimensional measurement GB/T 5013.2-2008 Rubber-insulated cables with rated voltage of 450/750V and below - Part 2.Test methods GB/T 5563-2013 Hydrostatic Test Methods for Rubber and Plastic Hoses and Hose Assemblies GB/T 6031-2017 Determination of hardness of vulcanized rubber or thermoplastic rubber (10IRHD~100IRHD) GB/T 7113.2 Insulating hoses - Part 2.Test methods GB/T 16422.2-2022 Plastics - Laboratory Light Source Exposure Test Methods - Part 2.Xenon Arc Lamps GB/T 17650.1-2021 Test methods for gases released during combustion of materials derived from cables or optical fibers—Part 1.Halogenated gases Total amount determination GB/T 17650.2-2021 Test methods for gases released during combustion of materials derived from cables or optical fibers—Part 2.Acidity (using...) pH measurement and conductivity determination GB/T 18380.12-2022 Cables and optical fibers – Burning tests under flame conditions – Part 12.Single-strand insulated wires and cables Flame Vertical Spread Test 1kW Premixed Flame Test Method GB/T 18380.13-2022 Cables and optical fibers – Burning tests under flame conditions – Part 13.Single-strand insulated wires and cables Test method for determining combustion drips/particles by vertical flame propagation test. GB/T 20234.1-2023 Connecting devices for conductive charging of electric vehicles - Part 1.General requirements ...