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This criteria is developed in accordance with the rules given in GB/T 1.1-2009.
This criteria replaces CQC 1601-2013 Certification Criteria for Table Lamps for Visual Task, and the following revisions have been made with respect to CQC 1601-2013 (the previous edition):
——Scope: the applicable places for light sources and table lamps applicable to the criteria are given;
——Normative References: update according to the latest formulation and revision of relevant national and IEC standards;
——The title is revised as "Criteria";
——Retina blue light hazard: the limit for retina blue light hazard of LED table lamps is increased from category RG1 to RG0;
——Electromagnetic radiation for human body: the reference standard is change from IEC standard to equivalent national standard;
——The requirements for luminous flux of table lamps for VDT visual task are deleted;
——The photometric requirements for lamps with adjustable light and/or color are increased;
——The photometric requirements for table lamps with adjustable position are increased;
——Unify requirements for the chromaticity performance of luminaires which take fluorescent lamp or LED as light source; as for LED table lamps, the correlated color temperature is changed from "shall not be higher than 4,000 K" to "should not exceed 4,000 K"; the requirements on color-rendering index for nominally high color-rendering table lamps are increased;
——"stroboflash" is changed to "scintillation" which shall meet the limit requirements of low risk grade in IEEE Std 1789-2015, and as for nominally imperceptible grade, it shall meet the limit requirements of imperceptible grade in IEEE Std 1789-2015;
——The appearance requirements are increased;
——Mark: prompts are required for LED table lamps with the color temperature possibly exceeding 4,000K; as for table lamps with adjustable position, the position or adjustment range suitable for visual task shall be given; as for table lamps with adjustable light and/or color, the explanation of adjustment method and the range suitable for visual task are required.
——Test method: the test methods are collected in Part 6.
This criteria was proposed and is under the jurisdiction of China Quality Certification Center (CQC).
This criteria was issued in 2013 for the first time and is revised for the first time (this edition).
Performance Certification Criteria for Table Lamps for Visual Task
1 Scope
This criteria specifies the performance requirements of table lamps for visual task with tungsten lamp, fluorescent lamp or LED as light source for which the power supply voltage is not exceeding 250V (hereinafter referred to as "table lamps").
This criteria is applicable to table lamps for paper lighting in families and similar places and those providing lighting for VDT visual task, including those declaring "eye-care".
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 2900.65 Electrotechnical Terminology - Lighting
GB 7000.1 Luminaires - Part 1: General Requirements and Tests
GB 7000.204 Luminaires - Part 2-4: Particular Requirements - Portable General Purpose Luminaires
GB/T 9473-2008 Performance Requirements for Table Lamps for Paper Task
GB/T 29293-2012 Measurement Methods of the Performance for LED Downlights
GB/T 31275 Assessment of Lighting Equipment Related to Human Exposure to Electromagnetic Fields
JJG 245-2005 Illuminometer
IEC/TR 62778 Application of IEC 62471 for the Assessment of Blue Light Hazard to Light Sources and Luminaires
IEEE Std 1789-2015 IEEE Recommended Practices for Modulating Current in High-brightness LEDs for Mitigating Health Risks to Viewers
IES LM-79-08 IES Approved Method for the Electrical and Photometric Measurements of Solid-state Lighting Products
3 Terms and Definitions
For the purposes of this document, the terms and definitions specified in GB/T 2900.65, GB 7000.204 and GB/T 9473 and those listed below apply.
3.1
table lamp for visual task
the table lamp which provides lighting for visual task of paper or visual display terminal (VDT)
3.2
modulation depth
the ratio of the difference between maximum and minimum of light output in a period to the sum of those, %
Note: the corresponding English of this term in GB/T 2900.65 is "amplitude of fluctuation", and "modulation depth" is from IEEE 1789, so the corresponding definitions of them are identical.
4 Classification
According to the usage type, table lamps for visual task are classified into table lamps for paper visual task and table lamps for VDT visual task.
5 Technical Requirements
Table lamps shall meet the security requirements of GB 7000.204, and the light sources and control devices used shall meet related safety and performance requirements.
5.1 Retina blue light hazard
Table lamps which use LED as light source shall be hazard-free class (RG0) when assessed according to IEC/TR 62778.
5.2 Electromagnetic radiation for human body
It shall meet the requirements of GB/T 31275.
5.3 Photometric requirements
5.3.1 Tabletop illuminance and uniformity of illuminance
Tabletop illuminance and uniformity of illuminance shall meet the requirements of Grade A in Article 5.8.2, GB/T 9473-2008. If it is indicated with Grade AA, the requirements of Grade AA in Article 5.8.2, GB/T 9473 shall apply.
5.3.2 Opacity
It shall meet the requirements of Article 5.8.1, GB/T 9473-2008.
For table lamps which use LED as light source, where a person is in sitting position, the surface brightness of all luminous components observed through human eyes shall not be greater than 2,000 cd/m2.
5.3.3 Brightness of lampshade edge
Table lamps for VDT visual task shall also meet the following requirements:
Where the height of light emitting opening surface in normal attitude is lower than 750mm, and when a seated person look at it in any position of normal use, as for table lamps for VDT visual task with upper light, the bright area of the lampshade side shall not be less than 10cm2, and the brightness of the surface shall be 170cd/m2~510cd/m2.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Technical Requirements
6 Test Methods
