GB/T 43081-2023 Lamps and light sources for road vehicles - Dimensional, electrical and luminous requirements
1 Scope
This document is applicable to electric light sources (see Note 1) for use in automotive applications, for example in road illumination devices and/or light signalling devices for road vehicles.
It is especially applicable to light sources listed in UN Resolution R.E.5 and light sources subject to other legislations.
This document specifies the technical requirements for interchangeability for example dimensional, electrical and photometrical characteristics, and includes test methods.
For the light sources listed in this document, the data sheets are contained either in this document or are included by reference to UN Resolution R.E.5.
Performance requirements are specified in IEC 60810, for example life, torsion strength, resistance to vibration and shock.
The requirements for miniature light sources for supplementary purposes, not subject to legislation, are specified in IEC 60983.
Note 1: The terms "lamp" and "light source" are both used in this document to mean the same product, so the two terms are interchangeable throughout this document.
Note 2: In various vocabularies and standards, different terms are used for "incandescent lamp" (GB/T 2900.65-2004, 845-07-04), "discharge lamp" (GB/T 2900.65-2004, 845-07-17) and "LED lamp". In this document "filament lamp", "discharge lamp" and "LED light source" are used, however, where only "lamp" or "light source" is written, all light sources, independent of the technology used, are meant, unless the context clearly shows that it applies to one kind of technology only. In the UN Regulations, the word "light source" is used for the products specified in this document.
Note 3: Wherever the term "device" is used, it is meant to designate equipment which is used as a luminaire. It can for instance take the form and purpose of a headlight or signal light.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050-845 International Electrotechnical Vocabulary - Part 845: Lighting
IEC 60061-1 Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 1: Lamp caps
IEC 60810:2017 Lamps, light sources and LED packages for road vehicles - Performance requirements
R.E.5 United Nations Consolidated Resolution on the common specification of light source categories (R.E.5)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-845, IEC 60810, R.E.5 and UN-Regulation No. 48 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
?IEC Electropedia: available at http://www.electropedia.org/
?ISO Online browsing platform: available at http://www.iso.org/obp
3.1
ageing period
preconditioning period of the light source before initial values are taken
[SOURCE: IEC 60050-845:2020, 845-27-108, modified - "period" has been added to the term and the note to entry has been deleted.]
3.2
category
basic design of standardized light sources
Note: Each specific designation, for example P21/5W, H4, D2R forms a category. Most of these designations are taken from the R.E.5.
3.3
conformity of production
compliance of the series production of a given type with the requirements of the relevant
Specification
Note: Local regulations may require checking the conformity of production by a government agency.
3.4
dipped beam; passing beam; low beam
headlight designed to illuminate the road ahead of the vehicle without causing undue glare to people in front of the vehicle carrying it, particularly to the drivers of approaching vehicles
Note: The term used in the UN regulation No. 48 is "passing-beam".
3.5
initial luminous flux
luminous flux measured at the end of the ageing period
3.6
life B10
time during which 10 % of a number of the tested light sources of the same type have reached the end of their individual lives
Note: In general the Weibull distribution method is used.
3.7
limiting value
lowest and/or highest value for a characteristic with which the light source has to comply when operated under specified conditions
3.8
luminous flux maintenance factor
ratio of the luminous flux of a light source at a given time in its operational life to its initial luminous flux, the light source being operated under specified conditions
Example: 70 % after 500 h.
Note: In IEC 60810 "luminous flux maintenance" is used with the same meaning.
[SOURCE: IEC 60050-845:2020, 845-27-114, modified - "electric light source" has been
replaced with "light source" and the 3 notes to entry have been replaced with a new note to entry and example.]
3.9
main beam; driving beam; high beam
headlight designed to illuminate the road for a considerable distance ahead of the vehicle
Note: The term used in the UN regulations is "driving-beam".
[SOURCE: IEC 60050-845:2020, 845-31-066, modified - "headlight" has been deleted from the terms, "driving beam" has become a second preferred term and "high beam" an admitted term; in the definition "the road" has been added, "carrying it" has been deleted and the notes have been replaced with a new note.]
3.10
nominal voltage
voltage used to designate a light source
Note 1: The term used in the UN regulations is "rated voltage".
Note 2: The nominal voltage is the battery voltage (6 V, 12 V or 24 V) of the road vehicle supply network.
3.11
nominal wattage
wattage used to designate a light source
3.12
non-replaceable light source
light source which cannot be removed from the device or luminaire
Note: Non-replaceable light sources are usually intended as components for integration into the luminaire or device by manufacturers. They are designed and intended to be indivisible parts of a lighting or light signalling device, or of parts or modules or units of such devices.
3.13
rated value
value of a characteristic specified for operation of a light source at test voltage and/or other specified conditions
Note 1: To express the "rated value" of a particular quantity, the term "value" is replaced by the quantity name, for example, rated power, rated voltage, rated current, and rated temperature.
Note 2: The standard test conditions are given in the relevant standard.
Note 3: The term used in the UN regulations is "objective value".
Note 4: In this document the rated value(s) are given in the relevant data sheets.
3.14
reference axis
axis defined with reference to the cap or base and with respect to which the positions of certain parts of the light source are referred
3.15
reference plane
plane defined with reference to the cap or base and with respect to which positions of certain parts of the light source are referred
3.16
standard lamp; étalon lamp
special light source with reduced dimensional, electrical and photometric tolerances, used for the photometric testing of lighting and light-signalling devices
Note 1: Standard lamps or standard light sources are specified for only one nominal voltage for each category.
Note 2: The term used in this document differs from the term used in general illumination.
3.17
test voltage
voltage at the light sources for which some characteristics are specified and at which they are tested
Note 1: The test voltage for filament light sources is specified for the terminals of a filament lamp or light source.
Note 2: The test voltage for discharge light sources is specified for the terminals of the input terminals of the electronic controlgear for discharge lamps or light sources.
Note 3: The test voltage for LED light sources is specified for the terminals of the input terminals of the LED light source.
