GB 5920-2008 Photometric characteristics of front and rear position lamps end-outline marker lamps and stop lamps for motor vehicles and their trailers
This standard specifies technical specifications, test procedure and inspection rules of photometric characteristics of front and rear position lamps, end-outline marker lamps and stop lamps for motor vehicles and their trailers
This standard is applicable to all kinds of front and rear position lamps, end-outline marker lamps and stop lamps for motor vehicles and their trailers of category M, N and O. In this standard, all kinds of signal lamps above are also called devices.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.
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 Filament Lamps for Road Vehicles-Dimensional, Electrical and Luminous Requirements (GB 15766.1-2000 idt IEC 60809:1995)
ECE R37 Uniform Provisions Concerning the Approval of Filament Lamps for Use in Lamp on Motor Vehicles and Their Trailers
3 Terms and Definitions
The terms and definitions which are established in GB 4785 are applicable to this standard.
4 Different Types of Devices
Devices different in the following aspects:
a) The trade name or mark;
b) The characteristics of the optical system, (levels of intensity, light distribution angles, category of filament lamp, light source module, etc.)
c) The system used to reduce illumination at night-in the case of stop lamps with two levels of intensity.
A change of the colour of the filament lamp or the colour of any filter does not constitute a change of type.
