GB/T 29293-2012Measurement methods of the performance for LED downlights (English PDF)

1 Scope

This standard specifies the LED light source, the power supply voltage not exceeding 250V general lighting LED downlight performance measurement.

This standard applies to the use of integrated LED module, LED module semi-integrated, non-integrated LED module, semi-integrated LED lights

Integrated LED lights or downlights.

This standard does not apply to integrated LED lights downlight.

This standard and GB/T 29294-2012 together.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2. Test methods Test A. Cold (IEC 60068-2-1.

2007, IDT)

GB 7000.1-2007 Lamps - Part 1. General requirements and tests (IEC 60598-1.2003, IDT)

General requirements GB/T 9468 luminaire photometric distribution

GB/T 24824-2009 LED modules for general lighting test methods

GB/T 29294-2012 LED Downlight performance requirements

3 Terms and Definitions

Terms and definitions GB/T 29294-2012 defined in Chapter 3 apply to this document.

General requirements Test Method 4

Unless otherwise specified, shall be measured at a relative humidity of not more than 65% and a temperature of 25 °C ± 1 °C free air convection environment, and should be

The LED downlight should be in a stable state.

The test voltage should be stable within ± 0.2% range measurement. Luminous flux maintaining rate during the test test voltage stable within ± 2% range.

Input current total harmonic content should not exceed 3%.

Before measurement, the sample needs to stabilize lit long enough, the time required depends on the type of test sample stability, and stability

Time is generally 30min ~ 120min or longer. Once every 15min measuring light output and electric power, when the light output and electricity within 30min

Differences three readings of power - when the (maximum and minimum) less than the average of three readings of 0.5% considered stable. Stable sample

Time shall be stated in the test report.

All tests should be carried out at the rated power frequency, except as otherwise specified for a particular purpose by the manufacturer or responsible vendor.

In the luminous flux maintaining rate during the test, in order not to affect the measurement results, avoid sample contamination that may occur during the test (ash

Dust, etc.).