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GB/T 34668-2017

Chinese Standard: 'GB/T 34668-2017'
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Standard ID GB/T 34668-2017 (GB/T34668-2017)
Description (Translated English) Safety requirements and test methods for electrical self-balancing vehicles
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J28
Classification of International Standard 25.040.30
Word Count Estimation 22,271
Date of Issue 2017-10-14
Date of Implementation 2018-01-01
Drafting Organization NARB (Beijing) Technology Co., Ltd., Beijing Institute of Machinery Industry Automation, Beijing University of Aeronautics and Astronautics, Shanghai New Century Robot Co., Ltd., Institute of Intelligent Science and Technology Application, Jiangsu CAS, Mechanical Engineering Beijing Institute of Electrical Technology and Economy, Shanghai Electric Science Research Institute (Group) Co., Ltd., Suzhou UL Mei Wah Certification Co., Ltd., Shanghai Motor Vehicle Testing and Certification Technology Research Center Co., Ltd., National Light Electric Vehicle and Battery Product Quality Supervision and Inspection Center (Wuxi City Product Quality Supervision and Inspection Institute) Certification Center, China Electronics Standardization Institute, the world music Shenzhen Science and Technology Co., Ltd., Shanghai Institute of Quality Supervision, Inspection and Technology, Guangdong Institute of Product Quality Supervision, Scud Power Technology Co., Ltd., CAS Chongqing Green Intelligent
Administrative Organization National Automation Systems and Integration Standardization Technical Committee (SAC/TC 159)
Proposing organization China Machinery Industry Federation
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of PRC; China National Standardization Administration

GB/T 34668-2017
ICS 25.040.30
J 28
Safety requirements and test methods
for electrical self-balancing vehicles
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Test conditions ... 7 
5 General safety requirements ... 8 
6 Electrical safety ... 12 
7 Mechanical safety ... 14 
8 Environmental reliability ... 15 
9 Test methods ... 16 
10 Marking and description ... 27 
Annex A (Informative) Protective circuit and safety analysis ... 31 
References ... 33 
This Standard was drafted in accordance with the provisions given in GB/T 1.1-
Some of the elements of this document may be the subject of patent rights. The
issuing authorities of this document shall not be held responsible for identifying
any or all such patent rights.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of the National Technical
Committee for Standardization of Automation Systems and Integration
(SAC/TC 159).
Drafting organizations of this Standard. Ninebot (Beijing) Tech Co., Ltd; Beijing
Research Institute of Automation for Machinery Industry; Beihang University;
Shanghai New Century Robot Co., Ltd; Institutes of Intelligent Science and
Technology Application Research, Jiangsu and Chinese Academy of Sciences;
Machinery Industry Beijing Electrotechnical Institute of Economic Research;
Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd; UL-CCIC
Company Limited in Suzhou; Shanghai Motor Vehicle Testing and Certification
Technology Research Center Co., Ltd; National Quality Supervision and
Inspection Center for LEV and Battery Products (Wuxi Product Quality
Supervision and Inspection Institute); China Quality Certification Centre; China
Electronics Standardization Institute; Shenzhen INMOTION Technologies Co.,
Ltd; Shanghai Institute of Quality Inspection and Technical Research;
Guangdong Testing Institute of Product Quality Supervision; Fujian SCUD
Power Technology Co., Ltd; Chongqing Institute of Green and Intelligent
Technology, Chinese Academy of Sciences; Shenzhen Institute of Standards
and Technology; Dongguan UTL Electronic Technology Co., Ltd; Zhejiang
University; Zhejiang Academy of Science & Technology for Inspection &
Quarantine; Alibaba (China) Co., Ltd; Beijing Jingdong Century Trading Co., Ltd.
Main drafters of this Standard. Wang Tianmiao, Wang Ye, Yang Shuping, Chen
Zhongyuan, Du Chao, Wang Jiankuan, Ma Xin, Li Xiaodong, Lu Shenyu, Zheng
Junqi, Le Yanfei, Tong Xiaomin, Ye Xian, Xia Jing, He Penglin, Cai Youfei, Liu
Huwei, He Longping, Liu Yongming, He Guotian, Yang Ge, Dai Hanqi, Zhu Ling,
Feng Hui, Liu Ying, Li Sha.
Safety requirements and test methods
for electrical self-balancing vehicles
1 Scope
This Standard specifies the terms and definitions, test conditions, general
safety requirements, electrical safety, mechanical safety, environmental
reliability, test methods, marking and description of the electrical self-balancing
This Standard is applicable to the battery-powered electrical self-balancing
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the editions with the dates indicated are applicable to
this document. For undated references, only the latest editions (including all the
amendments) are applicable to this document.
GB/T 2423.22-2012 Environmental testing - Part 2. Test methods - Test N.
Change of temperature
GB 3565-2005 Safety requirements for bicycles
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code)
GB 4943.1-2011 Information technology equipment - Safety - Part 1. General
GB/T 5169.16-2008 Fire hazard testing for electric and electronic products -
Part 16. Test flames - 50W horizontal and vertical flame test methods
GB/T 12350-2009 Safety requirements of small-power motors
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 Electrical self-balancing vehicle
A wheeled manned mobile platform that is based on the inverted pendulum
model and the principle of static instability, and is equipped with a rechargeable
electric drive system, thus maintaining dynamic balance in an autonomous or
manual mode of operation.
NOTE. The electrical self-balancing vehicle is referred to as the self-balancing vehicle for short.
3.2 Safety alarm
An alarm that may be clearly noticed by the user after being sent to the user,
when an electrical self-balancing vehicle detects internal faults (such as
abnormal battery voltage, balance control unit failure) or dangerous driving
actions or abnormal working conditions of the vehicle.
3.3 Footrest tilting function
The function enabled for limiting the user to continue driving in case of
overspeed, low-battery driving or overload driving detected in an electrical self-
balancing vehicle, thus protecting the safety of the user, by automatically tilting
up the front end of the footrest on the self-balancing vehicle.
3.4 Enclosure
A component of the equipment with one or more of the functions specified in
3.5, 3.6, 3.7 or 3.8.
NOTE. One type of enclosures may be inside another type of enclosures (for instance, an electrical
enclosure is inside a fire enclosure, or a fire enclosure is inside an electrical enclosure). In addition,
one type of enclosures may provide the functions of multiple types of enclosures (for instance,
with the functions of both electrical enclosures and fire enclosures).
NOTE. REWRITE the definition in of GB 4943.1-2011.
3.5 Fire enclosure
A component of the equipment, which is designed to minimize the outbreak of
fire or spread of flames in the equipment.
[Definition in of GB 4943.1-2011]
3.6 Mechanical enclosure
A component of the equipment, which is designed to reduce the risk of damage
caused by mechanical and other physical hazards.
[Definition in of GB 4943.1-2011]
3.7 Electrical enclosure
5.3 Sharp edges
Tubular objects that may cause stab injuries to the users on the outside of the
electrical self-balancing vehicles or hard protrusions of equipment components
shall be adequately designed (such as obtuse angle design, etc.) to guard
against stab injuries to the human bodies.
For threads that may pose a risk of stabbing, the length of the thread beyond
its internal attachment shall be limited to the length of a thread outside diameter.
5.4 Safety protection functions
5.4.1 Overspeed protection
The electrical self-balancing vehicle shall have such protection functions as
continuous safety alarm beyond the spe......
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