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GB 23255-2009 English PDF (GB23255-2009)

GB 23255-2009 English PDF (GB23255-2009)

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GB 23255-2009: Photometric characteristics of daytime running lamps for motor vehicles

This standard specifies technical requirements, test methods and inspection rules for photometric characteristics of daytime running lamps for motor vehicles. This standard applies to various types of daytime running lamps of category M and N vehicles used.
GB 23255-2009
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 43.040.20
T38
Photometric characteristics of
daytime running lamps for motor vehicles
ISSUED ON. MARCH 6, 2009
IMPLEMENTED ON. JANUARY 1, 2010
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Different types of daytime running lamps ... 6
5 Requirements ... 6
6 Test methods ... 8
7 Inspection rules ... 10
Foreword
The technical content of this standard is mandatory.
This standard corresponds to the United Nations Economic Commission for Europe ECE R87 Rev 1 Amend 4 ?€?Uniform provisions concerning the
approval of daytime running lamps for power-driven vehicles?€?, the degree of consistency is not equivalent, and the main differences are as follows. -- Modified the scope;
-- Added normative references;
-- Removed the following chapters and annexes on management in ECE
R87.
4. Mark;
5. Certification;
12. Daytime running lamps model improvements and certification
expansion;
13. Production consistency;
14. Punishment of failing to meet production consistency;
15 Products completely terminate production;
16. The name and address of the technical service department and
management department that conducted the certification test;
Annex 1 Notice of the approval / extension / abolish / recovery or
product discontinuation of the certification for certain daytime running lamps in accordance with ACT 87 code;
Annex 2 Example of the layout of the certification mark;
Annex 4 Light color chromaticity coordinates;
Annex 5 Minimum requirements of production conformity control
process;
Annex 6 Minimum requirements for inspector sampling;
-- Added inspection rules.
The main technical requirements of this standard are as follows. general technical requirements, luminous intensity, light color, heat resistance, methods, etc., which is in line with ECE R87. This standard is proposed by the National Development and Reform Commission.
This standard is attributed by the National Automotive Standardization
Technical Committee.
The responsible drafting organization of this standard. Shanghai Automotive Lighting Institute and Changchun Hella Automotive Lighting Ltd.
The main drafters of this standard. Wang Hua, Yu Peifeng, Yu Yali, Ye Lin. Photometric characteristics of
daytime running lamps for motor vehicles
1 Scope
This standard specifies technical requirements, test methods and inspection rules for photometric characteristics of daytime running lamps for motor vehicles.
This standard applies to various types of daytime running lamps of category M and N vehicles used.
In this standard, daytime running lamps are also called luminaires.
2 Normative references
Through referencing of this standard, the following documents provisions become the terms of this standard. For dated references, subsequent
amendments (not including errata content) or revisions do not apply to this standard. However, encourage the parties who reach an agreement in
accordance with this standard to make a research on whether to use the
latest version of these documents. For undated references, the latest version applies to this standard.
GB 4599 Motor vehicle headlamps equipped with filament lamps
GB 4785 Prescription for installation of the external lighting and
light-signalling devices for motor vehicles and their trailers
GB 15766.1 Lamps for road vehicles. Dimensional, electrical and luminous requirements
ECE R37 Uniform provisions concerning the approval of filament lamps for use in approved lamp units of power-driven vehicles and of their trailers 3 Terms and definitions
Established terms and definitions in GB 4785 apply to this standard.
4 Different types of daytime running lamps
The daytime running lamps that differ in the following main areas.
- Trademark name or trademark;
- Characteristics of the optical system (luminous intensity level, minimum angle of light distribution, types of used filament bulb or light source module, etc.);
However, the change of filament bulb color or filter color can be considered the same type.
5 Requirements
5.1 The daytime running lamps shall be designed and manufactured such
that, under regular using condition, even if the lamps subject to vibration, they can still meet the requirements and the specifications of this standard. 5.2 For the light source module used, it shall be designed such that, even in the dark, it can be installed in the correct position, and can also prevent mis-operation.
5.3 If daytime running lamps can use the same light source in combination with other functions, it may use electric light source controller to manipulate luminous intensity.
5.4 The light color of daytime running lamps should be white, and the color property should be consistent with GB 4785 provisions.
5.5 Filament bulbs used shall comply with the provisions of GB 15766.1 or ECE R37.
5.6 Luminous surface area shall not be less than 40cm2.
5.7 Photometric characteristics
5.7.1 The luminous intensity of daytime running lamps in reference axis shall not be less than 400 cd.
5.7.2 The luminous intensity of each measurement direction emitted by each luminaire, projecting to the point on the distribution of light distribution in Figure 1, shall not be lower than the PRODUCT OF the percentage value of each point as shown in Figure 1 AND 400 cd.
5.7.3 In any direction, light intensity emitted by the lamp shall not exceed 800 cd.
5.7.4 For the daytime running lamps consisting of more than one light source, when any one of the light sources fails to shine due to a fault, the lamps shall meet the prescribed minimum luminous intensity; when all light sources are lit, the lamps cannot exceed the specified maximum luminous intensity.
Figure 1 -- Light Distribution
5.7.5 The directions of H = 0?? and V = 0?? correspond to the reference axis (when installed on the vehicle, it is horizontal and parallel to the longitudinal surface of the vehicle, pointing to the direction of the required visibility) which passes through the reference center. Figure 1 already shows the minimum value in different directions, which is expressed as a percentage of the minimum value required on the axis of each luminaire (directions of H = 0?? and V = 0??).
5.7.6 In the light distribution area of 6.10 below, it shall be the same as 5.7.5. That is, the luminous intensity of each direction emitted in the area formed by the grid lines shall reach the lowest required percentage value in the specified direction on the grid lines.
5.8 Heat resistance
5.8.1 After the heat resistance test for lamps, under stable ambient
temperature, there shall not have phenomenon for any distortion, deformation, cracks or color changes for the lamps.
5.8.2 If there is any doubt as to the result of 5.8.1, retest is needed for the photometric characteristics. The measuring result shall be at least 90% of the result it measured before the heat-resistance test.
6 Test methods
6.1 Test dark-room, equipment and facility shall comply with the provisions of GB 4599.
6.2 Determine the visual surface boundary in the direction of the reference axis of luminaires.
6.3 Voltage when testing light distribution
6.3.1 For the daytime running lamps with replaceable filament bulbs, use a colorless, standard bulb in accordance with GB 15766.1 or ECE R37 for light distribution testing; and perform the measurement at the specified test luminous flux.
6.3.2 For the daytime running lamps with non-replaceable or other light sources. make measurements at 6.75V, 13.5V or 28.0V. Where necessary,
the manufacturer shall provide the dedicated power supply required for such light source and make measurements at the voltages specified by the
manufacturer.
6.4 Before the light distribution test, lighten the light source at the test voltage to stabilize its light performance.
6.5 When performing light distribution test, proper shading is needed to avoid stray light.
6.6 Light measurement requirements of daytime running lamps for different light source.
6.6.1 For non-replaceable light sources, apply the existing light source in the lamps.
6.6.2 For the daytime running lamps with replaceable light sources. When using filament lamps to measure at 6.75V, 13.5V or 28.0V, correct the value of luminous intensity produced. The RATIO of the average flux of the specified test flux AND test voltage (6.75V, 13.5V or 28. 0V) is a correction factor. It shall use each filament bulb of which the deviation BETWEEN the measured light flux AND its average value is not more than ?? 5%; Alternatively, it may, at positions of each filament bulb, use standard filament lamps in turn. Measure at the specified test flux; and add the measuring results at each position. 6.6.3 For luminaires using electro-optic source controller.
6.6.3.1 If using electro-optic sour...

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