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Similar standardsQC/T 1023-2015: General requirement of traction battery system for electric vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT1023-2015QC AUTOMOTIVE INDUSTRY STANDARD ICS 43.040 T 35 General requirement of traction battery system for electric vehicles Issued on. OCTOBER 10, 2015 Implemented on. MARCH 01, 2016 Issued by. Ministry of Industry and Information Technology of the People's Republic of China Table of ContentsNotice... 3 Foreword... 5 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 8 4 Traction battery pack model... 9 5 Requirements... 9 6 Assembly of traction battery system... 14 7 Component interface of traction battery system... 16 8 Test methods... 16 9 Identification and marking... 21 10 Transportation and storage... 21ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009 Directive for standardization – Part 1.Structure and drafting of standards. This standard was proposed by AND shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114/SC 27). The drafting organizations of this standard. Beijing Institute of Technology, Chongqing Changan New Energy Automobile Co., Ltd., Tianjin Qingyuan Electric Vehicle Limited Liability Company, China Automotive Technology Research Center, Shenzhen BYD Automobile Co., Ltd., Huizhou Yineng Electronics Co., Ltd., Shanghai Hengdong Automobile Battery Co., Ltd., Chery New Energy Vehicle Technology Co., Ltd., Beijing Jiaotong University, Putian New Energy Co., Ltd., Shanghai Motor Vehicle Testing Center, Harbin Guangyu Power Co., Ltd., Shanghai Kanai Energy Co., Ltd., Technology Center of Dongfeng Automobile Group Co., Ltd., China First Automobile Co., Ltd., Zhejiang Gushen Energy Technology Co., Ltd., Beiqi Foton Automobile Co., Ltd., China Automotive Engineering Research Institute Co., Ltd., Jiangsu Chunlan Clean Energy Research Institute Co., Ltd., CITIC Guoan MGL Power Technology Co., Ltd., Shanghai Aowei Technology Development Co., Ltd. The main drafters of this standard are. Wang Zhenpo, Sun Fengchun, Liu Peng, Yuan Changrong, Ruan Xusong, Yao Lei, Li Haitao, Zhou Nenghui, He Xiangyun, Yang Endong, Jiang Wenfeng, Wang Wei, Jiang Jiuchun, Wang Zhanguo, Shao Zhehai, Wu Zhiqiang, Zhu Shunliang, Ma Lishuang, Yu Hongtao, Xia Yang, Pei Xiaojuan, Sun Japing, Yang Chongke, Zhang Yongsheng, Yang Tao, Yu Jianjun, Liu Zhenyao, Miao Xiaoli. General requirement of traction battery system for electric vehicles1 ScopeThis standard specifies the general requirements of traction battery system for electric vehicles. This standard is applicable to traction battery systems for electric vehicles.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard. GB 2893 Safety colors GB 2894-2008 Safety signs and guideline for the use GB 4208-2008 Degrees of protection provided by enclosure (IP code) GB 21966 Safety of primary and secondary lithium cells and batteries during transport GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test A. Cold GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test B. Dry heat GB/T 2423.3-2006 Environmental testing for electric and electronic products - Part 2.Test methods - Test Cab. Damp heat steady state GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2.Test methods - Test Ea and guidance. Shock GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test Fc. Vibration (sinusoidal) GB/T 2423.17-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test Ka. salt mist GB/T 5013.1 Rubber insulated cables of rated voltages up to and including 450/750 V - Part 1.General requirements GB/T 5023.1 Polyvinyl chloride insulated cables of rated voltages up to and including 450/7 50 V - Part 1.General requirements GB/T 18384.1-2001 Electric vehicles - Safety specification - Part 1. On-board energy storage3 Terms and definitionsThe terms and definitions as defined in GB/T 19596 AND the following terms and definitions apply to this standard. 3.1 Traction battery It refers to the assembly which is used to contain the battery pack, the battery management module, and the corresponding auxiliary components, AND is composed of mechanical connection, electrical connection, protection and other functions. It is shortly referred to as the battery box. 3.2 Traction battery pack It refers to the unit which usually contains a battery module, a battery management module (not including BCU), a battery box, and the corresponding accessories, AND is able to obtain electric power from outside AND to output power to outside. 3.3 Swapping traction battery pack It refers to a battery pack that can be installed in an electric vehicle within a short period of time (typically no more than 5 minutes) by means of human or mechanical assistance AND is capable of charging its installed battery in an off-board condition.4 Traction battery pack modelNote. It is made from the identification card, the electric energy precision is one decimal AND the other is integer; if it is less than hundreds place, USE 0 to fill it in front.5 Requirements5.1 Environmental requirements 5.2 General requirements 5.2.1 The traction battery system shall have information collection, information transmission, and security monitoring function. 5.2.2 The traction battery system shall be easy to check and repair. 5.2.5 The traction battery system shall have a certain degree of anti-electromagnetic interference, AND its work shall not affect the operation of other electrical equipment. 5.3 Requirements for use 5.4 Electrical performance 5.4.1 Traction battery. 5.4.3 Traction battery system energy (kW • h). When the traction battery system is tested in accordance with 8.5.1, its energy shall be not less than the manufacturer's nominal value. 5.4.4 Traction battery system capacity (A • h). When the traction battery system is tested in accordance with 8.5.2, its capacity shall be neither less than the manufacturer's nominal value, NOR more than 110% of the manufacturer's nominal value. 5.5 Safety requirements 5.5.1 IP protection degree. After the tests of 8.6.1.1 and 8.6.1.2, the protection degree of the traction battery system not be lower than IP55. 5.5.4 Overcurrent protection. When the output current of the traction battery system rises up to the set overcurrent value, it shall limit the discharge power of the battery system OR otherwise require the vehicle control ECU to perform power limit, AND meanwhile it is preferable for the battery system to be able to output alarm signal. 5.5.5 Overtemperature protection. When the traction battery system temperature reaches up to the overtemperature protection value, it shall limit the discharge power of the battery system OR otherwise require the vehicle control ECU to perform power limit, AND meanwhile it is preferable for the battery system to be able to output alarm signal. 5.5.6 Shielding/enclosure. The shielding and enclosure of the traction battery system shall comply with the requirements of 6.3 in GB/T 18384.3-2001. 5.6 Mechanical strength 5.6.1 Vibration strength. After the traction battery system is tested in accordance with 8.4.1, it shall be free from mechanical damage, deformation, or loosening of the fastening parts, or the damage of the locking device. 5.6.2 Impact strength. After the traction battery system is tested in accordance with 8.4.2, it shall be free from mechanical damage, deformation, or loosening of the fastening parts, or the damage of the locking device. 5.6.3 Locking fixation As for the battery pack which is fixed by the locking device, the locking device shall be reliable AND have anti-misuse measures. 5.7 Parameter management 5.7.1 Functional requirements. 5.8.3.4 As for the plug-in type power line connector, the insertion force of a single connector shall be not less than 50 N. 5.8.3.5 The protection degree of the power line connector shall comply with the IP67 requirements. 5.9 Control line requirements 5.9.1 Material requirements. The wiring harness material shall comply with the requirements of QC/T 413. 5.9.2 Harness requirements. The wiring harness shall comply with the requirements of QC/T 417.1.The flame retardant and fire resistance shall comply with the requirements of GB/T 19666. 5.9.3 Connector requirements. The connector of the low-voltage control circuit AND the collection circuit shall comply with the requirements of QC/T 417.1, QC/T 417.3, and QC/T 417.4.6 Assembly of traction battery system6.1 Assembly of power line and related electrical components 6.1.1 Electrical connection requirements. 6.1.3 Connection of power lines. The connections shall be subjected to surface anti-corrosion treatment. 6.1.4 Safety device layout. The installation location of the safety device of the traction battery system shall be such that the fuse blowing will not cause combustion of other components. 6.2 Assembly of traction battery pack and system 6.2.1 Fixation of traction battery. 6.2.2 The polarity identification of the battery pack. The positive and negative polarity of the traction battery pack shall be identified near the terminal AND clearly visible; the color used for the identification shall comply with the requirements of GB 2893. 6.2.3 Assembly of traction battery. 6.3 Management system installation 6.3.1 Management module. 6.3.2 Sensing elements. As for the installation of the total current, total voltage and module voltage, temperature and other sensor components, if they cannot be integrated into the corresponding box, it shall take reliable protective measures AND comply with the requirements of 6.3 in GB/T 18384.3-2001. 6.3.3 Acquisition circuit layout. The wiring harness shall be securely secured, the alignment shall be smooth and reliable, AND it shall be reliably isolated from other circuits.7 Component interface of traction battery system7.1 Component requirements Traction battery charging interface shall comply with the requirements of GB/T 20234.1, GB/T 20234.2 and GB/T 20234.3. 7.2 Mechanical interface Mechanical interface shall be accurately positioned and reliably fixed; it is preferable to design it into asymmetric structure; AND it shall comply with the accurate interface joint and mis-installation prevention requirements. 7.3 High power electrical interface High power electrical interface shall have anti-corrosion function, and has anti-loose measures, AND it shall comply with the reliable power transmission requirements in the process of use.8 Test methods8.1 Test conditions 8.1.1 Test environmental conditions. Unless otherwise specified, the test shall be conducted under normal environmental conditions. 8.1.3 Instrumentation. Measuring instrumentation and instruments, including the test equipment which is used to monitor the test parameters, shall have qualification certificates; the metering instruments shall have the metering calibration certificate within the valid period. AND the test instrument and equipment precision shall comply with the following requirements. 8.2 Charging of traction battery pack It shall follow the requirements of the traction battery pack manufacturer to conduct charging. 8.3 Environmental adaptability test 8.3.1 High temperature test. High temperature work test shall be conducted in accordance with the requirements that “Test Bd. high temperature test of temperature gradual change of heat-dissipating sample – The test sample is not energized in the temperature rise regulation period” in GB/T 2423.2-2008.In this test, the high temperature test temperature is taken as 55 °C; AND the test duration is 16 h. 8.4 Mechanical strength test 8.4.1 Vibration test. With reference to the installation position of the tested device in the vehicle, FIX the traction battery system onto the vibration test bench surface; MAKE the locking device in the locked state. CONDUCT vibration test along three directions; the test is started from axis Z, then axis Y, AND finally axis Z. The vibration frequency range is 10 Hz ~ 55 Hz, the maximum acceleration is 30 m/s2, CONDUCT 10 sweep cycles respectively along the three vertical axis; AND the sweep rate is 1 oct/min. 8.5 Electrical performance test 8.6.1.2 Waterproof test. In accordance with the method specified in Chapter 14 of GB 4208-2008, CONDUCT the waterproof test of the battery pack. If the battery pack uses other protective enclosures outside, the battery pack and its protective enclosure shall be tested together. 8.6.2 Electrical insulation test. The connections, terminals, electrical contacts, etc. in the traction battery system shall be subjected to insulation treatment. They shall comply with the requirements of the chapter 6 in GB/T 18384.3-2001.The equipment shall follow the category II requirements. In accordance with the test voltage level as specified in Table 3, USE the megger (or other instrument with the same function and accuracy level) to measure the insulation resistance between the positive or negative pole and the metal enclosure. 8.6.3 Overcurrent protection test. The test is conducted in accordance with the test method in GB/T 31467.3-2015. 8.6.4 Overtemperature protection test. 8.6.4.1 The traction battery system shall be charged in accordance with the requirements of 8.2. 8.6.4.2 The traction battery system discharges at 1 I3 (A), AND the simulated ambient temperature exceeds the set value during discharge.9 Identification and marking9.1 Identification The outer surface of the traction battery pack shall have a permanent nameplate. The nameplate shall include. product name, product model or specification, traction battery pack code, rated capacity (A • h), mass (kg), manufacturer mark, implementation standard number, production lot number, and production date. 9.2 Marking 9.2.1 The marking of the traction battery pack shall be placed on the first 9.2.4 The interface between the traction battery pack and the external power cable and control cable shall be clearly marked. 9.2.5 The marking of the prohibition, warning and instruction signs shall comply with the requirements of GB 2894-2008. 9.2.6 Battery box assembly requires identification of polarity. The polarity identification mark shall be located near the terminal post, AND it may use the following identifiers. QC/T 1023-2015 QC AUTOMOTIVE INDUSTRY STANDARD ICS 43.040 T 35 General requirement of traction battery system for electric vehicles Issued on. OCTOBER 10, 2015 Implemented on. MARCH 01, 2016 Issued by. Ministry of Industry and Information Technology of the People's Republic of ChinaTable of ContentsNotice... 3 Foreword... 5 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 8 4 Traction battery pack model... 9 5 Requirements... 9 6 Assembly of traction battery system... 14 7 Component interface of traction battery system... 16 8 Test methods... 16 9 Identification and marking... 21 10 Transportation and storage... 21ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009 Directive for standardization – Part 1.Structure and drafting of standards. This standard was proposed by AND shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114/SC 27). The drafting organizations of this standard. Beijing Institute of Technology, Chongqing Changan New Energy Automobile Co., Ltd., Tianjin Qingyuan Electric Vehicle Limited Liability Company, China Automotive Technology Research Center, Shenzhen BYD Automobile Co., Ltd., Huizhou Yineng Electronics Co., Ltd., Shanghai Hengdong Automobile Battery Co., Ltd., Chery New Energy Vehicle Technology Co., Ltd., Beijing Jiaotong University, Putian New Energy Co., Ltd., Shanghai Motor Vehicle Testing Center, Harbin Guangyu Power Co., Ltd., Shanghai Kanai Energy Co., Ltd., Technology Center of Dongfeng Automobile Group Co., Ltd., China First Automobile Co., Ltd., Zhejiang Gushen Energy Technology Co., Ltd., Beiqi Foton Automobile Co., Ltd., China Automotive Engineering Research Institute Co., Ltd., Jiangsu Chunlan Clean Energy Research Institute Co., Ltd., CITIC Guoan MGL Power Technology Co., Ltd., Shanghai Aowei Technology Development Co., Ltd. The main drafters of this standard are. Wang Zhenpo, Sun Fengchun, Liu Peng, Yuan Changrong, Ruan Xusong, Yao Lei, Li Haitao, Zhou Nenghui, He Xiangyun, Yang Endong, Jiang Wenfeng, Wang Wei, Jiang Jiuchun, Wang Zhanguo, Shao Zhehai, Wu Zhiqiang, Zhu Shunliang, Ma Lishuang, Yu Hongtao, Xia Yang, Pei Xiaojuan, Sun Japing, Yang Chongke, Zhang Yongsheng, Yang Tao, Yu Jianjun, Liu Zhenyao, Miao Xiaoli. General requirement of traction battery system for electric vehicles1 ScopeThis standard specifies the general requirements of traction battery system for electric vehicles. This standard is applicable to traction battery systems for electric vehicles.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard. GB 2893 Safety colors GB 2894-2008 Safety signs and guideline for the use GB 4208-2008 Degrees of protection provided by enclosure (IP code) GB 21966 Safety of primary and secondary lithium cells and batteries during transport GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test A. Cold GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test B. Dry heat GB/T 2423.3-2006 Environmental testing for electric and electronic products - Part 2.Test methods - Test Cab. Damp heat steady state GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2.Test methods - Test Ea and guidance. Shock GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test Fc. Vibration (sinusoidal) GB/T 2423.17-2008 Environmental testing for electric and electronic products - Part 2.Test methods - Test Ka. salt mist GB/T 5013.1 Rubber insulated cables of rated voltages up to and including 450/750 V - Part 1.General requirements GB/T 5023.1 Polyvinyl chloride insulated cables of rated voltages up to and including 450/7 50 V - Part 1.General requirements GB/T 18384.1-2001 Electric vehicles - Safety specification - Part 1. On-board energy storage3 Terms and definitionsThe terms and definitions as defined in GB/T 19596 AND the following terms and definitions apply to this standard. 3.1 Traction battery It refers to the assembly which is used to contain the battery pack, the battery management module, and the corresponding auxiliary components, AND is composed of mechanical connection, electrical connection, protection and other functions. It is shortly referred to as the battery box. 3.2 Traction battery pack It refers to the unit which usually contains a battery module, a battery management module (not including BCU), a battery box, and the corresponding accessories, AND is able to obtain electric power from outside AND to output power to outside. 3.3 Swapping traction battery pack It refers to a battery pack that can be installed in an electric vehicle within a short period of time (typically no more than 5 minutes) by means of human or mechanical assistance AND is capable of charging its installed battery in an off-board condition.4 Traction battery pack modelNote. It is made from the identification card, the electric energy precision is one decimal AND the other is integer; if it is less than hundreds place, USE 0 to fill it in front.5 Requirements5.1 Environmental requirements 5.2 General requirements 5.2.1 The traction battery system shall have information collection, information transmission, and security monitoring function. 5.2.2 The traction battery system shall be easy to check and repair. 5.2.5 The traction battery system shall have a certain degree of anti-electromagnetic interference, AND its work shall not affect the operation of other electrical equipment. 5.3 Requirements for use 5.4 Electrical performance 5.4.1 Traction battery. 5.4.3 Traction battery system energy (kW • h). When the traction battery system is tested in accordance with 8.5.1, its energy shall be not less than the manufacturer's nominal value. 5.4.4 Traction battery system capacity (A • h). When the traction battery system is tested in accordance with 8.5.2, its capacity shall be neither less than the manufacturer's nominal value, NOR more than 110% of the manufacturer's nominal value. 5.5 Safety requirements 5.5.1 IP protection degree. After the tests of 8.6.1.1 and 8.6.1.2, the protection degree of the traction battery system not be lower than IP55. 5.5.4 Overcurrent protection. When the output current of the traction battery system rises up to the set overcurrent value, it shall limit the discharge power of the battery system OR otherwise require the vehicle control ECU to perform power limit, AND meanwhile it is preferable for the battery system to be able to output alarm signal. 5.5.5 Overtemperature protection. When the traction battery system temperature reaches up to the overtemperature protection value, it shall limit the discharge power of the battery system OR otherwise require the vehicle control ECU to perform power limit, AND meanwhile it is preferable for the battery system to be able to output alarm signal. 5.5.6 Shielding/enclosure. The shielding and enclosure of the traction battery system shall comply with the requirements of 6.3 in GB/T 18384.3-2001. 5.6 Mechanical strength 5.6.1 Vibration strength. After the traction battery system is tested in accordance with 8.4.1, it shall be free from mechanical damage, deformation, or loosening of the fastening parts, or the damage of the locking device. 5.6.2 Impact strength. After the traction battery system is tested in accordance with 8.4.2, it shall be free from mechanical damage, deformation, or loosening of the fastening parts, or the damage of the locking device. 5.6.3 Locking fixation As for the battery pack which is fixed by the locking device, the locking device shall be reliable AND have anti-misuse measures. 5.7 Parameter management 5.7.1 Functional requirements. 5.8.3.4 As for the plug-in type power line connector, the insertion force of a single connector shall be not less than 50 N. 5.8.3.5 The protection degree of the power line connector shall comply with the IP67 requirements. 5.9 Control line requirements 5.9.1 Material requirements. The wiring harness material shall comply with the requirements of QC/T 413. 5.9.2 Harness requirements. The wiring harness shall comply with the requirements of QC/T 417.1.The flame retardant and fire resistance shall comply with the requirements of GB/T 19666. 5.9.3 Connector requirements. The connector of the low-voltage control circuit AND the collection circuit shall comply with the requirements of QC/T 417.1, QC/T 417.3, and QC/T 417.4.6 Assembly of traction battery system6.1 Assembly of power line and related electrical components 6.1.1 Electrical connection requirements. 6.1.3 Connection of power lines. The connections shall be subjected to surface anti-corrosion treatment. 6.1.4 Safety device layout. The installation location of the safety device of the traction battery system shall be such that the fuse blowing will not cause combustion of other components. 6.2 Assembly of traction battery pack and system 6.2.1 Fixation of traction battery. 6.2.2 The polarity identification of the battery pack. The positive and negative polarity of the traction battery pack shall be identified near the terminal AND clearly visible; the color used for the identification shall comply with the requirements of GB 2893. 6.2.3 Assembly of traction battery. 6.3 Management system installation 6.3.1 Management module. 6.3.2 Sensing elements. As for the installation of the total current, total voltage and module voltage, temperature and other sensor components, if they cannot be integrated into the corresponding box, it shall take reliable protective measures AND comply with the requirements of 6.3 in GB/T 18384.3-2001. 6.3.3 Acquisition circuit layout. The wiring harness shall be securely secured, the alignment shall be smooth and reliable, AND it shall be reliably isolated from other circuits.7 Component interface of traction battery system7.1 Component requirements Traction battery charging interface shall comply with the requirements of GB/T 20234.1, GB/T 20234.2 and GB/T 20234.3. 7.2 Mechanical interface Mechanical interface shall be accurately positioned and reliably fixed; it is preferable to design it into asymmetric structure; AND it shall comply with the accurate interface joint and mis-installation prevention requirements. 7.3 High power electrical interface High power electrical interface shall have anti-corrosion function, and has anti-loose measures, AND it shall comply with the reliable power transmission requirements in the process of use.8 Test methods8.1 Test conditions 8.1.1 Test environmental conditions. Unless otherwise specified, the test shall be conducted under normal environmental conditions. 8.1.3 Instrumentation. Measuring instrumentation and instruments, including the test equipment which is used to monitor the test parameters, shall have qualification certificates; the metering instruments shall have the metering calibration certificate within the valid period. AND the test instrument and equipment precision shall comply with the following requirements. 8.2 Charging of traction battery pack It shall follow the requirements of the traction battery pack manufacturer to conduct charging. 8.3 Environmental adaptability test 8.3.1 High temperature test. High temperature work test shall be conducted in accordance with the requirements that “Test Bd. high temperature test of temperature gradual change of heat-dissipating sample – The test sample is not energized in the temperature rise regulation period” in GB/T 2423.2-2008.In this test, the high temperature test temperature is taken as 55 °C; AND the test duration is 16 h. 8.4 Mechanical strength test 8.4.1 Vibration test. With reference to the installation position of the tested device in the vehicle, FIX the traction battery system onto the vibration test bench surface; MAKE the locking device in the locked state. CONDUCT vibration test along three directions; the test is started from axis Z, then axis Y, AND finally axis Z. The vibration frequency range is 10 Hz ~ 55 Hz, the maximum acceleration is 30 m/s2, CONDUCT 10 sweep cycles respectively along the three vertical axis; AND the sweep rate is 1 oct/min. 8.5 Electrical performance test 8.6.1.2 Waterproof test. In accordance with the method specified in Chapter 14 of GB 4208-2008, CONDUCT the waterproof test of the battery pack. If the battery pack uses other protective enclosures outside, the battery pack and its protective enclosure shall be tested together. 8.6.2 Electrical insulation test. The connections, terminals, electrical contacts, etc. in the traction battery system shall be subjected to insulation treatment. They shall comply with the requirements of the chapter 6 in GB/T 18384.3-2001.The equipment shall follow the category II requirements. In accordance with the test voltage level as specified in Table 3, USE the megger (or other instrument with the same function and accuracy level) to measure the insulation resistance between the positive or negative pole and the metal enclosure. 8.6.3 Overcurrent protection test. The test is conducted in accordance with the test method in GB/T 31467.3-2015. 8.6.4 Overtemperature protection test. 8.6.4.1 The traction battery system shall be charged in accordance with the requirements of 8.2. 8.6.4.2 The traction battery system discharges at 1 I3 (A), AND the simulated ambient temperature exceeds the set value during discharge.9 Identification and marking9.1 Identification The outer surface of the traction battery pack shall have a permanent nameplate. The nameplate shall include. product name, product model or specification, traction battery pack code, rated capacity (A • h), mass (kg), manufacturer mark, implementation standard number, production lot number, and production date. 9.2 Marking 9.2.1 The marking of the traction battery pack shall be placed on the first 9.2.4 The interface between the traction battery pack and the external power cable and control cable shall be clearly marked. 9.2.5 The marking of the prohibition, warning and instruction signs shall comply with the requirements of GB 2894-2008. 9.2.6 Battery box assembly requires identification of polarity. The polarity identification mark shall be located near the terminal post, AND it may use the following identifiers. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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