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GB 17761-2018 English PDF (GB17761-2018)

GB 17761-2018 English PDF (GB17761-2018)

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GB 17761-2018: Safety technical specification for electric bicycle
GB 17761-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.140
Y 14
Replacing GB 17761-1999
Safety technical specification for electric bicycle
ISSUED ON. MAY 15, 2018
IMPLEMENTED ON. APRIL 15, 2019
Issued by. State Administration for Market Regulation of the People's
Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 General rules ... 7
5 Complete bicycle marking ... 8
6 Safety requirements ... 9
7 Test method ... 17
Annex A (Normative) Major technical parameter settings for electric bicycles
... 29
Safety technical specification for electric bicycle
1 Scope
This Standard specified the major technical requirements and corresponding test
methods for the complete bicycle safety, mechanical safety, electrical safety, fire
resistance property, radio disturbance characteristics and instructions for use of
electric bicycles.
This Standard applies to electric bicycles.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced documents (including all
amendments) applies to this document.
GB/T 755-2008, Rotating Electrical Machines – Rating and Performance (IEC
60034-1.2004, IDT)
GB 3565-2005, Safety requirements for bicycles (ISO 4210.1996)
GB/T 4208-2017, Degrees of protection provided by enclosure (IP code) (IEC
60529.2013, IDT)
GB/T 5169.11, 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 5169.11-2017, IEC 60695-2-11.2014, IDT)
GB/T 5169.16, Fire hazard testing for electric and electronic products – Part 16.
Test flames – 50 W horizontal and vertical flame test methods (GB/T 5169.16-
2017, IEC 60695-11-10.2013, IDT)
GB/T 5269.1, Instructions for use of products of consumer interest – Part 1.
General principles (GB/T 5269.1-2012, ISO/IEC Guide 37.1995, MOD)
GB 8410-2006, Flammability of automotive interior materials
GB/T 12742, The specifications of testing equipment and measuring appliance for
bicycle
The dimensional limits on electric bicycle shall comply with the following requirements.
a) the complete bicycle height is less than or equal to 1,100 mm; the bicycle width
(except the handlebar and pedal parts) less than or equal to 450 mm; the center
distance between front and rear wheels less than or equal to 1,250 mm; the
saddle height greater than or equal to 635 mm;
b) the length of saddle is less than or equal to 350 mm;
c) the maximum width of the flat part of the clothes rack over the rear wheel is less
than or equal to 175 mm.
6.1.6 Construction
6.1.6.1 Pedal clearance
The pedal clearance of electric bicycle shall be as specified in 11.2 of GB 3565-2005.
6.1.6.2 Protrusion
The protrusion of electric bicycle shall be as specified in 4.2 of GB 3565-2005.
6.1.6.3 Collision prevention
The motionless parts of electric bicycle shall not collide with moving parts.
6.1.7 Speed prompt tone
Electric bicycle shall have a speed prompt tone, which shall comply with the following
requirements.
a) it will give a continuous prompt tone when the riding speed achieves 15 km/h;
b) the sound pressure range of prompt tone is 55 dB(A) ~ 62 dB(A).
NOTE. Bicycle bell tone is recommended to be used as the speed prompt tone. The cycle of a
single sound production can be 3 s; the time of a single sound production can be about 700 ms.
6.1.8 Water pouring and wading property
Carry out test in accordance with the water pouring and wading test method specified
in 7.2.8. After test, electric bicycle shall be capable of riding normally, all electrical
components function normally, and the insulation resistance shall be greater than or
equal to 1 MΩ.
6.2 Mechanical safety
6.2.1 Frame/front fork assembly
6.3.2.1 Braking power-off function
When electric bicycle of the electric drive mode, its electrical control system shall have
the function to power off the motor.
6.3.2.2 Overcurrent protection function
The electrical control system of electric bicycle shall have the overcurrent protection
function.
6.3.2.3 Anti-loss-of-control function
The electrical control system of electric bicycle shall have the anti-loss-of-control
function.
6.3.3 Motor rated continuous output power
The motor rated continuous output power of electric bicycle shall be less than or equal
to 400 W.
6.3.4 Chargers and storage batteries
6.3.4.1 Chargers
The chargers of electric bicycle shall comply with the following requirements.
a) under abnormal working conditions, the chargers have the protection function
and there is no damage in the chargers in case of any reverse or short-circuit of
their output wires;
b) the chargers have the anti-electric shock protection function, whose construction
and enclosure shall have sufficient protection for the easily accessible and live
parts, except the chargers whose peak AC voltage and DC voltage are less than
or equal to 42.4 V.
6.3.4.2 Maximum output voltage of storage batteries
The maximum output voltage of storage batteries of electric bicycles shall be less than
or equal to 60 V.
6.3.4.3 Tamper-proofing of storage batteries
The tamper-proofing of storage batteries of electric bicycle shall comply with the
following requirements.
a) storage batteries are fixed in the battery pack box. Storage batteries shall be well
matched with battery pack box. Battery pack boxes are well matched with the
mounting location of battery pack box to prevent alteration of battery capacity or
The radio disturbance characteristics shall be as specified in GB 14023.
6.7 Instructions for use
Each electric bicycle shall be accompanied by instructions for use in delivery and sales.
The compilation of the instructions for use shall be as specified in GB/T 5296.1, at least
including the safety-related content as follows.
a) it is indicated on the cover of the instructions for use that user shall not use
electric bicycle before reading the instructions for use carefully and knowing
about the properties of electric bicycle, and the instructions for use shall be kept
properly by user;
b) it prompts user to abide by the traffic laws and regulations and pay attention to
traffic safety, e.g..
1) it is forbidden for people under the age of 16 to ride an electric bicycle on road;
2) electric bicycle shall be ridden in the bicycle lane with the maximum speed not
exceeding 15 km/h. On a road without a bicycle lane, it shall be ridden on the
right side of the road;
3) it shall warn that electric bicycle shall not be borrowed to those who are unable
to ride to prevent hazards;
4) electric bicycle shall carry passengers or goods as provided by law;
5) it is suggested that a helmet should be worn during the ride;
6) during the ride on a rainy or snowy day, the braking distance will increase, so
the speed should be lowered for safety. During severe weather like storm, trip
should be avoided as much as possible.
c) it prompts user to pay attention to the use safety of electric bicycle, e.g..
1) electric bicycle should not be parked in building hallways, emergency
staircases, pa...
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