Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 9473-2008 Performance Requirements for Table Lamps for Paper Task.
The following main technical changes have been made with respect to GB/T 9473-2008 (the previous edition):
——In Scope of Application, LED light source is added into optical source type, and table lamps for reading/writing illumination in families, classrooms and similar places and those declared to be "eye-protective" are added, see Chapter 1);
——Requirements for electromagnetic radiation and optical biosafety of human body (see 5.5 and 5.6) are added;
——Color temperature suggestions to LED luminaires (see 6.2.2.2 and 6.2.2.3) are given;
——Requirements and test methods for photochromic characteristics of light- and color-adjustable luminaries are added (see 6.3.2 and 7.3.2);
——Requirements for opacity and its test of luminaries are modified (refer to 6.3.3 and 7.3.3);
——Requirements for flickering are introduced and an indicative annex is given (see 6.3.5, Annex A);
——Requirements for noise are raised, and test methods are modified (see 6.4 and 7.4).
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of Subcommittee on Luminaire of National Technical Committee on lighting of Standardization Administration of China (SAC/TC 224 / SC 2).
The previous editions replaced by this standard are as follows:
——GB/T 9473-1988 and GB/T 9473-2008.
Performance Requirements for Table Lamps for Paper Task
1 Scope of Application
This standard specifies the performance requirements of table lamps for paper tasks with tungsten lamp, fluorescent lamp or LED as light source and with supply voltage not exceeding 250 V (hereinafter referred to as "luminaries").
This standard is applicable to table lamps for reading/writing illumination in families, classrooms and similar places and those declared to be "eye-protective".
The test in this standard is type test. See 3.3 for its definition.
Note: the test for entrusted type-test sample is required in this standard. That the sample is qualified in the type test does not guarantee that all the products manufactured by the manufacturer are qualified. The manufacturer is responsible for the product conformity and may carry out routine test and quality guarantee in addition to type test.
2 Normative References
The following referenced documents are indispensable for the application 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.
GB/T 6882 Acoustics - Determination of Sound Power Levels and Sound Energy Levels of Noise Sources Using Sound Pressure - Precision Methods for Anechoic Rooms and Hemi-anechoic Rooms
GB 7000.1-2015 Luminaires - Part 1: General Requirements and Tests
GB 7000.204 Luminaires - Part 2-4: Particular Requirements - Portable General Purpose Luminaires
GB/T 10681 Tungsten Filament Lamps for Domestic and Similar General Lighting Purposes - Performance Requirements
GB/T 17263 Self-ballasted Lamps for General Lighting Service - Performance Requirements
GB 17625.1 Electromagnetic Compatibility - Limits - Limits For Harmonic Current Emissions (Equipment Input Current≤16A Per Phase)
GB/T 17743 Limits and Methods of Measurement of Radio Disturbance Characteristics of Electrical Lighting and Similar Equipment
GB/T 19654 Auxiliaries for Lamps - D.C. Or A.C. Supplied Electronic Step-down Convertors for Filament Lamps - Performance Requirements
GB/T 24823 LED Modules for General Lighting - Performance Requirements
GB/T 24825 DC Or AC Supplied Electronic Control Gear for LED Modules - Performance Requirements
GB/T 24908 Non-directional Self-Ballasted LED-lamps for General Lighting Services - Performance Requirements
GB/T 29296 Self-ballasted LED Reflector Lamps - Performance Requirements
GB/T 31275 Assessment of Lighting Equipment Related to Human Exposure to Electromagnetic Fields
GB/T 34452-2017 Performance Requirements for Portable LED Luminaires for General Lighting
JJG 245 Illuminometer Verification Regulation
IEC TR 62778 Application of IEC 62471 for the Assessment of Blue Light Hazard to Light Sources and Luminaires
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 7000.1 and the following apply.
3.1
table lamp
portable luminaires placed on the furniture
3.2
table lamp for paper task
table lamp providing lighting for reading, writing and similar activities
3.3
illuminance
light flux projected on unit area, with the unit as lx.
Note: 1 lux is defined as the illuminance generated with 1 lumina light flux evenly distributed on 1 square meter of surface
3.4
normal attitude of a luminaire
luminarie posture and arrangement direction on the desk specified by the manufacturer to meet the photometry requirements
3.5
modulation depth
modulation
the ratio of the difference between maximum and minimum of light output for a period to the sum of that, %
Note: the corresponding English of term "波动深度" in GB/T 2900.65 is "amplitude of fluctuation", and “modulation depth” is from IEEE 1789, so they are corresponding to the same definition.
4 Classification
The luminaires may be classified into Levels A and AA according to the illuminance, and classification requirements are detailed in 6.3.4.
5 General Requirements
5.1 Safety requirements
The luminaires shall meet the requirements of GB 7000.204.
5.2 Performance requirements for portable LED luminaires for general lighting
The luminaires with LED as the light source shall meet the requirements of GB/T 34452-2017 (except Chapter 9).
5.3 Radio disturbance characteristic
It shall meet the requirements of GB/T 17743.
5.4 Limit of harmonic electric current for power
It shall meet the requirements GB 17625.1.
5.5 Electromagnetic radiation of luminaire against human body
It shall meet the requirements of GB/T 31275.
5.6 Optical biosafety
The blue light hazard category of luminaires with LED light source evaluated according to IEC/TR 62778 shall not exceed RG 0.
5.7 Light source and control device for luminaires
Light source and control device for luminaires shall be in accordance with those specified in Table 1.
Foreword i 1 Scope of Application 2 Normative References 3 Terms and Definitions 4 Classification 5 General Requirements 6 Technical Requirements 7 Test Methods 8 Photometry Test Report Annex A (Informative) Flicker Bibliography
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 9473-2008 Performance Requirements for Table Lamps for Paper Task.
The following main technical changes have been made with respect to GB/T 9473-2008 (the previous edition):
——In Scope of Application, LED light source is added into optical source type, and table lamps for reading/writing illumination in families, classrooms and similar places and those declared to be "eye-protective" are added, see Chapter 1);
——Requirements for electromagnetic radiation and optical biosafety of human body (see 5.5 and 5.6) are added;
——Color temperature suggestions to LED luminaires (see 6.2.2.2 and 6.2.2.3) are given;
——Requirements and test methods for photochromic characteristics of light- and color-adjustable luminaries are added (see 6.3.2 and 7.3.2);
——Requirements for opacity and its test of luminaries are modified (refer to 6.3.3 and 7.3.3);
——Requirements for flickering are introduced and an indicative annex is given (see 6.3.5, Annex A);
——Requirements for noise are raised, and test methods are modified (see 6.4 and 7.4).
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of Subcommittee on Luminaire of National Technical Committee on lighting of Standardization Administration of China (SAC/TC 224 / SC 2).
The previous editions replaced by this standard are as follows:
——GB/T 9473-1988 and GB/T 9473-2008.
Performance Requirements for Table Lamps for Paper Task
1 Scope of Application
This standard specifies the performance requirements of table lamps for paper tasks with tungsten lamp, fluorescent lamp or LED as light source and with supply voltage not exceeding 250 V (hereinafter referred to as "luminaries").
This standard is applicable to table lamps for reading/writing illumination in families, classrooms and similar places and those declared to be "eye-protective".
The test in this standard is type test. See 3.3 for its definition.
Note: the test for entrusted type-test sample is required in this standard. That the sample is qualified in the type test does not guarantee that all the products manufactured by the manufacturer are qualified. The manufacturer is responsible for the product conformity and may carry out routine test and quality guarantee in addition to type test.
2 Normative References
The following referenced documents are indispensable for the application 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.
GB/T 6882 Acoustics - Determination of Sound Power Levels and Sound Energy Levels of Noise Sources Using Sound Pressure - Precision Methods for Anechoic Rooms and Hemi-anechoic Rooms
GB 7000.1-2015 Luminaires - Part 1: General Requirements and Tests
GB 7000.204 Luminaires - Part 2-4: Particular Requirements - Portable General Purpose Luminaires
GB/T 10681 Tungsten Filament Lamps for Domestic and Similar General Lighting Purposes - Performance Requirements
GB/T 10682-2010 Double-capped Fluorescent Lamps - Performance Specifications
GB/T 14044 Ballasts for Tubular Fluorescent Lamps - Performance Requirements
GB/T 14094 Tungsten Halogen Lamps (Non-vehicle) - Performance Requirement
GB/T 15144 A.C. Supplied Electronic Ballasts for Tubular Fluorescent Lamps - Performance Requirements
GB/T 17262 Single-capped Fluorescent Lamps - Performance Requirements
GB/T 17263 Self-ballasted Lamps for General Lighting Service - Performance Requirements
GB 17625.1 Electromagnetic Compatibility - Limits - Limits For Harmonic Current Emissions (Equipment Input Current≤16A Per Phase)
GB/T 17743 Limits and Methods of Measurement of Radio Disturbance Characteristics of Electrical Lighting and Similar Equipment
GB/T 19654 Auxiliaries for Lamps - D.C. Or A.C. Supplied Electronic Step-down Convertors for Filament Lamps - Performance Requirements
GB/T 24823 LED Modules for General Lighting - Performance Requirements
GB/T 24825 DC Or AC Supplied Electronic Control Gear for LED Modules - Performance Requirements
GB/T 24908 Non-directional Self-Ballasted LED-lamps for General Lighting Services - Performance Requirements
GB/T 29296 Self-ballasted LED Reflector Lamps - Performance Requirements
GB/T 31275 Assessment of Lighting Equipment Related to Human Exposure to Electromagnetic Fields
GB/T 34452-2017 Performance Requirements for Portable LED Luminaires for General Lighting
JJG 245 Illuminometer Verification Regulation
IEC TR 62778 Application of IEC 62471 for the Assessment of Blue Light Hazard to Light Sources and Luminaires
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 7000.1 and the following apply.
3.1
table lamp
portable luminaires placed on the furniture
3.2
table lamp for paper task
table lamp providing lighting for reading, writing and similar activities
3.3
illuminance
light flux projected on unit area, with the unit as lx.
Note: 1 lux is defined as the illuminance generated with 1 lumina light flux evenly distributed on 1 square meter of surface
3.4
normal attitude of a luminaire
luminarie posture and arrangement direction on the desk specified by the manufacturer to meet the photometry requirements
3.5
modulation depth
modulation
the ratio of the difference between maximum and minimum of light output for a period to the sum of that, %
Note: the corresponding English of term "波动深度" in GB/T 2900.65 is "amplitude of fluctuation", and “modulation depth” is from IEEE 1789, so they are corresponding to the same definition.
4 Classification
The luminaires may be classified into Levels A and AA according to the illuminance, and classification requirements are detailed in 6.3.4.
5 General Requirements
5.1 Safety requirements
The luminaires shall meet the requirements of GB 7000.204.
5.2 Performance requirements for portable LED luminaires for general lighting
The luminaires with LED as the light source shall meet the requirements of GB/T 34452-2017 (except Chapter 9).
5.3 Radio disturbance characteristic
It shall meet the requirements of GB/T 17743.
5.4 Limit of harmonic electric current for power
It shall meet the requirements GB 17625.1.
5.5 Electromagnetic radiation of luminaire against human body
It shall meet the requirements of GB/T 31275.
5.6 Optical biosafety
The blue light hazard category of luminaires with LED light source evaluated according to IEC/TR 62778 shall not exceed RG 0.
5.7 Light source and control device for luminaires
Light source and control device for luminaires shall be in accordance with those specified in Table 1.
Contents of GB/T 9473-2017
Foreword i
1 Scope of Application
2 Normative References
3 Terms and Definitions
4 Classification
5 General Requirements
6 Technical Requirements
7 Test Methods
8 Photometry Test Report
Annex A (Informative) Flicker
Bibliography
