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GB/T 37133-2018

Chinese Standard: 'GB/T 37133-2018'
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Detail Information of GB/T 37133-2018; GB/T37133-2018
Description (Translated English): Technical specifications of high duty cables and connectors for electric vehicles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: T35
Classification of International Standard: 43.040.99
Word Count Estimation: 18,182
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Drafting Organization: Linyi Haina Electronics Co., Ltd., Suzhou Zhilv Environmental Protection Technology Co., Ltd., Sichuan Yonggui Technology Co., Ltd., Shenzhen Basba Technology Development Co., Ltd., Tianjin Kewen Mould Injection Co., Ltd., China Automotive Technology Research Center Co., Ltd. Amphenol Precision Connector (Shenzhen) Co., Ltd., Shanghai Automotive Group Co., Ltd. Commercial Vehicle Technology Center, BYD Auto Industry Co., Ltd., China First Automobile Group Corporation Technology Center, Chongqing Changan New Energy Automobile Co., Ltd., AVIC Optoelectronics Technology Co., Ltd. Co., Ltd., Chery New Energy Automotive Technology Co., Ltd., Shenzhen Woer Nuclear Materials Co., Ltd., Shanghai Automotive Group Co., Ltd. Technology Center, Great Wall Motor Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd., Yueqing Bada Optoelectronics Technology Co., Ltd. Limited company
Administrative Organization: National Automotive Standardization Technical Committee
Proposing organization: Ministry of Industry and Information Technology

GB/T 37133-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
T 35
Technical Specifications of High Duty Cables and
Connectors for Electric Vehicles
电动汽车用高压大电流线束和连接器技术要求
ISSUED ON. DECEMBER 28, 2018
IMPLEMENTED ON. JULY 1, 2019
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 5 
4 General Requirements ... 5 
5 Electrical Performance ... 7 
6 Physical Properties ... 7 
7 Environmental Adaptability ... 8 
8 Electromagnetic Shielding Effectiveness ... 9 
9 Test Methods ... 9 
10 Inspection Rules ... 11 
Appendix A (Normative) Some Requirements of High Voltage Connector ... 13 
Appendix B (Normative) Some Requirements of High Voltage Cables ... 15 
Appendix C (Informative) Measuring Method of Electromagnetic Shielding
Effectiveness of High Voltage Connection System ... 17 
References ... 20 
Technical Specifications of High Duty Cables
and Connectors for Electric Vehicles
1 Scope
This Standard specifies the general requirements, electrical performance, physical
properties, environmental adaptability, electromagnetic shielding effectiveness, test
methods and inspection rules of high-voltage connection system, which is constituted
of high duty cables and connectors for the purpose of electric vehicles.
This Standard is applicable to Class-B voltage high-voltage connection system for
electric vehicles, which complies with the stipulation in GB/T 18384.3-2015.
NOTE. in the connection system, the part that is used to conduct non-Class-B voltage
circuit can take this Standard as a reference.
This Standard is not applicable to connection set of conductive charging for electric
vehicles.
2 Normative References
The following documents are indispensable to the application of this Standard. In terms
of references with a specified date, only versions with a specified date are applicable
to this Standard. The latest version (including all the modifications) of references
without a specified date is applicable to this Standard.
GB/T 4208 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 5169.11-2017 Fire Hazard Testing for Electric and Electronic Products - Part
11. Glowing/hot-wire Based Test Methods - Glow-wire Flammability Test Method
for End-products (GWEPT)
GB/T 11918.1-2014 Plugs, Socket-outlet and Couplers for Industrial Purposes -
Part 1. General Requirements
GB/T 18384.3-2015 Electrically Propelled Road Vehicles - Safety Specifications -
Part 3. Protection of Persons Against Electric Shock
GB/T 19596 Terminology of Electric Vehicles
GB/T 20234.1 Connection Set of Conductive Charging for Electric Vehicles - Part
1. General Requirements
GB/T 25085-2010 Road Vehicles - 60 V and 600 V Single-core Cables
GB/T 25087-2010 Road Vehicles - Round, Screened and Unscreened 60 V and
600 V Multi-core Sheathed Cables
GB/T 28046.3-2011 Road Vehicles - Environmental Conditions and Testing for
Electrical and Electronic Equipment - Part 3. Mechanical Loads
GB/T 28046.4-2011 Road Vehicles - Environmental Conditions and Testing for
Electrical and Electronic Equipment - Part 4. Climatic Loads
GB/T 28046.5-2013 Road Vehicles - Environmental Conditions and Testing for
Electrical and Electronic Equipment - Part 5. Chemical Loads
GB/T 30038 Road Vehicles - Degrees of Protection (IP Code) - Protection of
Electrical Equipment Against Foreign Objects, Water and Access
3 Terms and Definitions
The following terms and definitions, and what is defined in GB/T 18384.3-2015, GB/T
19596 and GB/T 20234.1 are applicable to this document.
3.1 High Voltage Cable
High voltage cable refers to cable assembly, which is constituted of one or multiple
high voltage cables for the conduction of Class-B voltage circuit.
3.2 High Voltage Connector
High voltage connector refers to a component that possesses one or multiple groups
of conductor terminal that provides the function of connection and separation among
high voltage cables, and between high voltage cables and high voltage components of
electric vehicles.
3.3 High Voltage Connection System
High voltage connection system refers to the connection set, which is constituted of
high voltage cables and high voltage connectors for the conduction of Class B voltage
circuit among high voltage components of electric vehicles.
NOTE. high voltage connection system can also include accessory components, such as
corrugated tubes, heat shrinkable tubes, fixtures and protective tubes (slots), etc.
4 General Requirements
4.1 Appearance
9.3 Voltage Resistance
Impose the test voltage that is stipulated in 7.3.3.3 in GB/T 18384.3-2015, inspect the
voltage resistance performance of the high voltage connection system.
9.4 Insulation Resistance
Among conductors, between conductors and outer shell, and between conductors and
shielding layer of the high voltage connection system, respectively impose the
stipulated test voltage to test the insulation resistance. The DC voltage of the tested
loop shall be 1,000 V ± 50 V. Read stable insulation resistance value. If it does not
reach stability, then, read the value within 60 s ± 5 s after imposing the voltage.
9.5 Temperature Rise
Conduct normal operation temperature rise test of the high voltage connection system;
the test does not include interlocking signal terminal. Test current is the system’s rated
current value. Please refer to Chapter 22 in GB/T 11918.1-2014 for the test time.
NOTE. rated current is the designed value of normal operating current of the high voltage
connection system; it does not consider the continuous or peak current in
temporary operation.
9.6 Protection Level
The test method of protection level shall comply with GB/T 30038 or GB/T 4208.
9.7 Constant Temperature Storage
The test method of low-temperature and high-temperature storage shall respectively
comply with 5.1.1.1 and 5.1.2.1 in GB/T 28046.4-2011.
9.8 Salt Spray Resistance
The test method of salt spray resistance shall comply with 5.5.1 in GB/T 28046.4-2011.
9.9 Chemical Resistance
The test method of chemical resistance shall comply with GB/T 28046.5-2013.
9.10 Random Vibration
The test method of random vibration shall comply with GB/T 28046.3-2011.
9.11 Electromagnetic Shielding Effectiveness
The test method of electromagnetic shielding effectiveness shall refer to Appendix C.
Appendix A
(Normative)
Some Requirements of High Voltage Connector
A.1 Structure
A.1.1 When high voltage connector is is coordinating, the various conductor terminals
shall correspond with a unique contact terminal.
A.1.2 Under the connected state, high voltage connector shall have the function of
maintenance; when the mechanical retaining mechanism is moving, there shall be
sound or visual warning.
A.2 Flammability
Flammability of high voltage connector shall comply with the requirement in Chapter
10 in GB/T 5169.11-2017. Please refer to GB/T 5169.11-2017 for the test method of
flammability; test temperature shall be 850 °C. The test is applicable to insulating
material components, which maintains high voltage current-carrying components in a
normal position.
A.3 Inserting and Extracting Requirement of Insertable and Extractable
Connectors
A.3.1 Insertion and extraction force
Direct insertion and extraction force of high voltage connector, or the operating force
of the adopted power assisting device shall be less than 100 N. During mis-inserting
and mis-extracting operation, impose insertion and extraction force that is not more
than the value listed in Table A.1. The high voltage connector shall not be damaged,
and the contact condition of the terminal shall comply with A.1.1.
Table A.1 -- Insertion and Extraction Test Force
Appendix C
(Informative)
Measuring Method of Electromagnetic Shielding Effectiveness of High Voltage
Connection System
C.1 Measurement Principle
Adopt current probe method to measure the electromagnetic shielding effectiveness
of high voltage connection system within the frequency range of 150 kHz ~ 108 MHz.
C.2 Measurement Equipment
C.2.1 RF signal source and receiving device
RF signal source and receiving device can have several options as follows.
---Independent signal source and spectrum analyzer (or electromagnetic
interference measuring receiver);
---Spectrum analyzer, which is equipped with tracking source (or electromagnetic
interference measuring receiver);
---Network analyzer.
C.2.2 Current probe
Adopt current probe that complies with the requirement in GB/T 18655-2010. Current
probe can be 1 PCS or a group; it shall cover a range of frequencies of 150 kHz ~ 108
MHz.
C.2.3 Matched impedance
Matched impedance refers to load whose characteristic impedance is 50 Ω; it is
adopted to absorb test signal injected by signal source.
C.2.4 Shielding tool
Shielding tool is a fully shielded shell. One end of the shell is imbedded in RF connector,
which makes it convenient to connect signal source output or 50 Ω matched
impedance; the other end of the shell is imbedded in high voltage connector or
shielding layer of the high voltage connection system.
C.3 Test Arrangement
C.3.1 Test arrangement of the high voltage connection system shall be consistent with
the practical working condition. Please refer to Figure C.1 for a sketch diagram of the
C.4 Test Procedure
C.4.1 If network analyzer is adopted, after calibration, measure the value of forward
transmission parameter S21.
C.4.2 If signal source and receiver are adopted, adjust the output of signal source and
read the value of various frequency points on the terminal of the receiver.......
Related standard:   GB/T 36282-2018  GB/T 37153-2018
   
 
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