GB/T 31887.4-2023_English: PDF (GB/T31887.4-2023)
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Cycles -- Lighting and retro-reflective devices -- Part 4: Lighting systems powered by the cycle' s movement
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| Standard ID | GB/T 31887.4-2023 (GB/T31887.4-2023) | | Description (Translated English) | Cycles -- Lighting and retro-reflective devices -- Part 4: Lighting systems powered by the cycle' s movement | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y14 | | Classification of International Standard | 43.150 | | Word Count Estimation | 18,174 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Management Committee |
GB/T 31887:4-2023: Bicycle lighting and retro-reflective devices Part 4: Lighting systems powered by bicycle generators
ICS 43:150
CCSY14
National Standards of People's Republic of China
Bicycle Lighting and Retro-reflectors
Part 4: Lighting systems powered by bicycle generators
Cycles-Lighting and retro-reflective devices-
(ISO 6742-4:2015, IDT)
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface III
Introduction IV
1 Range 1
2 Normative references 1
3 Terms and Definitions 1
4 lights and replaceable generator 2
4:1 General 2
4:2 Requirement 2
4:3 Test method 3
5 lights and dedicated generator 4
5:1 General 4
5:2 Requirement 4
5:3 Security requirements 5
6 General requirements and test methods for lighting systems and loads 5
6:1 Requirement 5
6:2 Test method 6
7 Manual 6
8 signs 6
8:1 Requirement 6
8:2 Durability test 6
Appendix A (informative) Electronic load for power measurement of 6V/1:5W LED generator 8
Appendix B (Informative) Efficiency Calculation 10
Appendix C (Informative) Electronic Load Verification 11
Reference 13
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
This document is Part 4 of GB/T 31887 "Bicycle Lighting and Retro-reflective Devices": GB/T 31887 has been issued with
Lower part:
--- Part 1: Lighting and light signaling devices;
--- Part 2: Retro-reflective devices;
--- Part 3: Installation and use of lighting and retro-reflective devices;
--- Part 4: Lighting systems powered by bicycle generators;
--- Part 5: Lighting systems for bicycles powered by non-generators:
This document is equivalent to ISO 6742-4:2015 "Bicycle lighting and retro-reflective devices - Part 4: Bicycle generator power supply
lighting installations":
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China National Light Industry Council:
This document is under the jurisdiction of the National Bicycle Standardization Technical Committee (SAC/TC155):
This document is drafted by: Jiaxing Xingcheng Electronics Co:, Ltd:, Satelight (Foshan) Plastic Products Co:, Ltd:, Kunshan Huimei Huade Hardware
Products Co:, Ltd:, Yantai Changhong Plastic Products Co:, Ltd:, Jiande City Five Star Vehicle Industry Co:, Ltd:, Kunshan Tangze New Energy Technology Co:, Ltd:,
Zhejiang Luyuan Electric Vehicle Co:, Ltd:, Jiashan Acousto-optic Electronics Co:, Ltd:, Kunshan Customs Comprehensive Technical Service Center, Taizhou City Product Quality and Safety
Testing Research Institute, Wuxi Inspection, Testing and Certification Research Institute, China Bicycle Association, Shanghai Xiedian Technology Service Co:, Ltd:
The main drafters of this document: Sun Liping, Li Dechao, Yao Li, Jia Gang, Li Fanghong, Liu Jianhua, You Yingchun, Zhang Fangyong, Gu Jinquan, Jiang Juchang,
Yuan Xingqi, Ruan Li, Li Xiang, Yang Li:
introduction
GB/T 31887 "Bicycle Lighting and Retro-reflective Devices" was drafted according to the safety requirements of bicycles at night, and its purpose is to ensure that
To ensure the safety of bicycle lighting and retro-reflective devices manufactured in accordance with this document for consumers riding at night: GB/T 31887 "Bicycle
Lighting and Retro-reflector >Consists of 5 parts:
--- Part 1: Lighting and light signaling devices: The purpose is to make requirements on the light performance of bicycle lighting and light signal devices, so as to facilitate
Product quality is uniformly regulated and consumers ride safely at night:
--- Part 2: Retro-reflective devices: The purpose is to make requirements on the light performance of the retro-reflective device of the bicycle, which is convenient for product quality:
Uniform specifications and consumer night riding safety:
--- Part 3: Installation and use of lighting and retroreflective devices: The purpose is to ensure the safety of bicycle lighting and retro-reflective devices:
It is convenient for product installation and use to uniformly standardize the quality and ensure the safety of consumers riding at night:
--- Part 4: Lighting systems powered by bicycle generators: Performance of lighting fixtures aimed at powering bicycle generators
Requirements are made to facilitate the unified specification of product quality and the safety of consumers riding at night:
--- Part 5: Lighting systems for bicycles powered by non-generators: The purpose is to protect the bicycle non-generator powered lighting device
It is convenient for the unified specification of product quality and the safety of consumers riding at night:
GB/T 31887 (all parts) is a recommended national standard, designed to ensure the light performance and
Reliability meets the requirements, and it is required to consider safety aspects from the design stage:
The scope of GB/T 31887 (all parts) is limited to product light performance safety considerations: If the bicycle is used on public roads, the
Comply with relevant management regulations such as the Road Traffic Safety Law of the People's Republic of China:
The safety and quality of bicycles is related to the life safety of consumers in traffic: Since:1995, my country has released three versions of the "Self-initiated
Bicycle Reflector" and 2 versions of "Bicycle Lighting Equipment" standards, for the upgrading of bicycle lighting and reflector products in my country, the product
Optical performance improvement provides technical support: GB/T 22791-2008 is equivalent to ISO 6742-1:1987 "Bicycle lighting and reflectors
Optical and Physical Requirements Part 1: Lighting Equipment", GB/T 31887-2015 is equivalent to ISO 6742-2:1985 "Bicycle Photos
Optical and physical requirements for reflective devices - Part 2: Retro-reflective devices": In:2015, ISO 6742 was revised and released again, from the original
The 2 standards were revised into 5 standards: For this reason, GB/T 22791 was incorporated into the GB/T 31887 standard, and the original two standards were revised to
5 standards: The standard level is synchronized with the international standard, and continues to provide technical support for the safety of bicycle products in my country:
Bicycle Lighting and Retro-reflectors
Part 4: Lighting systems powered by bicycle generators
1 Scope
This document specifies the performance requirements for lighting systems powered by bicycle generators, describes the corresponding test methods, and is applicable to compliance with
GB/T 31887:1-2019 lighting devices: The lighting system includes a lighting device and a power source provided by the rotation of the bicycle, such as a generator:
This document applies to bicycles used on public roads, especially bicycles in accordance with ISO 4210-2 and ISO 8098
Lighting system:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 31887:1-2019 Bicycle lighting and retro-reflective devices Part 1: Lighting and light signaling devices (ISO 6742-
1:2015, MOD)
Note: There is no technical difference between the referenced content of GB/T 31887:1-2019 and the referenced content of ISO 6742-1:2015:
ISO 6742-1 Bicycle lighting and retro-reflective devices Part 1: Lighting and light signaling devices (Cycles-Lighting
tests)
Note: GB/T 10125-2021 Artificial atmosphere corrosion test salt spray test (ISO 9227:2017, MOD)
Note: GB/T 4208-2017 enclosure protection level (IP code) (IEC 60529:2013, IDT)
3 Terms and Definitions
The terms and definitions defined in ISO 6742-1 and the following apply to this document:
3:1
A generator that connects a rotor or stator to rollers that are pressed against the drive wheels by force on rotating bearings:
3:2
Generators defined in friction-driven generators (3:1) are not involved:
3:3
Including a system designed to be used together with a power supply and at least one lamp, closed system:
Note 1: Generator characteristics depend on vehicle rotation:
Note 2: The light output performance depends on the speed of the vehicle or the time the bicycle is stopped:
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