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GB 11554-2008Photometric characteristics of rear fog lamp for power-driven vehicles and their trailers (English PDF)

机动车和挂车用后雾灯配光性能

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Level / Type

National · Mandatory

Issue date

December 31, 2008

Implementation date

January 1, 2010

Scope

GB 11554-2008 is the English-translated version of 机动车和挂车用后雾灯配光性能.

GB 11554-2008 — This Standard specifies the technical specifications, test methods and inspection rules of rear fog lamps for motor vehicles and their trailers.

This Standard applies to all types of rear fog lamps for power-driven vehicles of categories L3, L4, L5, L7, M, N and trailer of category O. In this Standard, the rear fog lamps of power-driven vehicles and their trailers are referred to as rear fog lamps. L7 refers to four-wheeled motorcycles.

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Document preview — GB 11554-2008

National Standard of the People's Republic of China

ICS: 43.040.20
Classification: T 38

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Foreword...3
1 Scope...5
2 Normative References...5
3 Terms and Definitions...5
4 Specifications...6
5 Test Procedure...7
6 Inspection Rules...9

Foreword

All the technical content of this Standard is mandatory.

This Standard corresponds to United Nations Economic Commission for Europe ECE

R38 Rev.2 Amend.2 "Uniform Provisions Concerning the Approval of Rear Fog Lamps

for Power-driven Vehicles and Their Trailers". This Standard is not equivalent to ECE

R38, with the main differences as follows.

-- it modifies Chapter 1 "Scope";

-- it increases Normative References;

-- it deletes the following chapters and annexes concerning management of ECE

R38.

2 Application for approval;

3 Markings;

4 Approval;

10 Conformity of production;

11 Penalties for non-conformity of production;

12 Production definitively discontinued; and

13 Names and addresses of Technical Services responsible for conducting

approval tests, and of Type Approval Authorities;

-- it increases Inspection Rules.

The main technical specifications of this Standard are the same as ECE R38, such as

Specifications and Test procedure.

This Standard replaces GB 11554-1998 "Uniform Provisions Concerning the Approval

of Rear Fog Lamps for Power-driven Vehicles and Their Trailers". Compared with the

previous edition, the main changes of this Standard are as follows.

-- it modifies Chapter 1 "Scope" of the previous edition;

-- it modifies Chapter 2 "Normative References" of the previous edition;

-- it modifies relevant provisions on Definitions in Chapter 3 of the previous edition;

-- it modifies relevant provisions in the Technical specifications of Chapter 4 of the

previous edition;

-- it modifies Chapter 5 "Test procedure" of the previous edition;

-- it modifies Chapter 6 "Inspection rules" of the previous edition;

-- it increases relevant provisions on rear fog lamps equipped with light source

modules; and

-- it increases relevant provisions on rear fog lamps that use a variable intensity

control.

For the newly-applied type approval tests of rear fog lamps for power-driven vehicles

and their trailers, this Standard shall be implemented from January 1, 2010; and for

the rear fog lamps for power-driven vehicles and their trailers which have passed type

approval tests before the implementation of this Standard, this Standard shall be

implemented from January 1, 2012.

This Standard was proposed by the National Development and Reform Commission.

This Standard shall be under the jurisdiction of the National Technical Committee of

Auto Standardization.

The drafting organization of this Standard. Shanghai Institute of Automotive Lamps.

1 Scope

This Standard specifies the technical specifications, test methods and inspection rules

of rear fog lamps for motor vehicles and their trailers.

This Standard applies to all types of rear fog lamps for power-driven vehicles of

categories L3, L4, L5, L7, M, N and trailer of category O.

In this Standard, the rear fog lamps of power-driven vehicles and their trailers are

referred to as rear fog lamps.

L7 refers to four-wheeled motorcycles.

2 Normative References

The provisions in following documents become the provisions of this Standard through

reference in this Standard. For dated references, the subsequent amendments

(excluding corrigendum) or revisions do not apply to this Standard, however, parties

who reach an agreement based on this Standard are encouraged to study if the latest

versions of these documents are applicable. For undated references, the latest edition

of the referenced document 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

3 Terms and Definitions

For the purpose of this Standard, the terms and definitions given in GB 4785 apply.

4 Specifications

4.1 General specifications

4.1.1 Rear fog lamps shall be so designed and constructed that under normal

conditions of use and notwithstanding the vibrations to which they may be subjected

in such use, their satisfactory operation remains assured and they retain the

characteristics prescribed by this Standard.

4.2 Photometric performance

4.2.1 Within the angle range specified below, the luminous intensity of a rear fog lamp

in all directions shall meet the following specifications.

4.2.1.1 The intensity along the H-H and V-V axes, between 10° to the left and 10° to

the right and between 5° up and 5° down (see Figure 1), shall not be less than 150 cd.

4.2.2 In the case of a single lamp containing more than one light source, the lamp

shall comply with the minimum intensity required when any one light source has failed

and when all light sources are illuminated the maximum intensities shall not be

exceeded.

4.2.3 The apparent surface in the direction of the reference axis shall not exceed 140

cm2.

4.3 The colour and colorimetric characteristics of rear fog lamps shall meet the

specifications of GB 4785.

4.4 Heat resistance test

The lamp must be subjected to a one-hour test of continuous operation following a

warm-up period of 20 minutes.

5 Test Procedure

5.1 The test darkroom, apparatus and equipment shall meet the specifications of GB

4599.

5.2 Test conditions for photometric performance

5.2.1 In the case of a lamp equipped with non-replaceable light sources (filament

lamps and other), it shall be tested at 6.75 V, 13.5 V or 28.0 V respectively.

5.2.4 For any lamp except those equipped with filament lamps, the luminous

intensities, measured after one minute and after 30 minutes of operation, shall comply

with the specifications of 4.2.The luminous intensity distribution after one minute of

operation can be calculated from the luminous intensity distribution after 30 minutes of

operation by applying at each test point the ratio of luminous intensities measured at

HV after one minute and after 30 minutes of operation.

Rhombus field

5.2.5 Photometric measurement of lamps equipped with several light sources

5.3 Conditions of heat resistance test

5.3.1 In the case of a lamp equipped with non-replaceable light sources (filament

lamps and other), it shall be tested at 6.75 V, 13.5 V or 28.0 V respectively.

5.3.3 In the case of light sources equipped with a variable luminous intensity control,

the test shall be carried out under the conditions given at minimum 90 per cent of the

higher luminous intensity.

5.4 Before the photometric performance test, a rear fog lamp or filament lamp

equipped with non-replaceable light sources shall be illuminated at the testing voltage

and its photometric performance shall be stabilized.

5.8 The measurement of measuring angle shall be based on reference axes and

reference centres which shall be indicated on the drawings of the manufacturer.

5.9 A light sources (colour temperature 1 856 K) shall be used for colorimetric

measurements. For a rear fog lamp that uses non-replaceable light sources, it shall be

tested in the test conditions specified in 5.2.1;

6 Inspection Rules

6.1 Rear fog lamps of different types.

Lamps which differ in such essential respects as.

6.2 Type approval test

6.2.1 Rear fog lamps of different types shall be determined according to the

specifications of 6.1 mentioned above.

6.2.2 The manufacturer shall provide.

6.2.3 Each sample lamp shall meet the specifications in 4.1.

6.2.4 The test shall be conducted in accordance with Chapter 5 and each sample

lamp shall meet the specifications in 4.2, 4.3 and 4.4.

6.3 Conformity of production procedure

6.3.1 For the devices qualified by type approval test, use the sample lamps taken at

random from the products mass-produced to determine their conformity of production.

6.3.2 The 2 sample lamps taken at random shall meet the specifications of 4.1.

......

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

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