GB/T 31897.201-2016 Luminaire performance—Part 2-1:Particular requirements for LED luminaires

Scope

This part of GB/T 31897 specifies the performance requirements for LED luminaires and the test methods and conditions used to demonstrate their compliance with these requirements. It applies to LED luminaires for general lighting purposes. LED luminaires include the following types: Type A - luminaires using LED modules that comply with IEC 62717; Type B - luminaires using LED modules that do not comply with IEC 62717; Type C - luminaires using LED lamps, which are covered by IEC 62722. The requirements of this part only pertain to type testing. This part does not apply to Type C luminaires. This part does not apply to LED luminaires that produce colored light, nor to luminaires using OLEDs (organic LEDs). Unless this 21st part specifies alternative measurement methods or limits, these performance requirements supplement Chapters 1 to 9 of GB/T 31897.1. Since this part was developed and written concurrently with the LED module standard, IEC 62717, where applicable, the module compliance specified in IEC 62717 can be extended to the entire luminaire. In most cases, the lifespan of LED luminaires far exceeds the feasible test duration. Therefore, verifying the manufacturer's claimed lifespan cannot be conducted with sufficient confidence. For this reason, accepting or rejecting the manufacturer's claimed lifespan based on exceeding 25% of the rated lifespan (maximum 6,000 hours) falls outside the scope of this part. This part instead selects luminous flux maintenance rating levels defined by test duration to replace lifespan verification. Therefore, the rating numbers do not predict achievable lifespan. The rating represents the luminous flux attenuation characteristics, which reflect consistency with the manufacturer's information provided before the test. To verify the claimed lifespan, extrapolation of test data is required. General methods for predicting measurement data beyond limited test durations are currently under consideration. For an explanation of reco

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