GB/T 39018-2020 in English

Interpretation of the core content of the standard

This standard establishes a unified measurement method for the power consumption of smart lighting equipment in non-main function modes (including standby, network standby, off and no-load modes). Key specifications:

Key technical requirements

1. Test environment control

The laboratory needs to maintain a constant temperature of 25℃±1℃, the power supply voltage fluctuation is ≤0.2%, and the total harmonic content of the AC power supply is <3%. Accuracy requirements for power measurement equipment:

• AC instrument: uncertainty ≤0.5%
• DC instrument: uncertainty ≤0.1%

2. Special processing for network connection

For devices with wireless function, the test configuration must meet the following requirements:

Comparison of test methods

Implementation suggestions

1. Key points of equipment configuration

For devices with Rechargeable battery devices:

• Before testing, make sure the battery is fully charged or physically disconnected
• Charging circuit power consumption needs to be measured separately

2. Data recording specifications

Must record:

1. Test environment temperature and humidity
2. Power supply voltage waveform distortion
3. Wireless signal strength (if applicable)
4. Mode switching time trajectory

3. Standard evolution direction

With the development of IoT technology, future versions may add:

• Power consumption assessment of edge computing devices
• Test methods for 5G communication modules
• Special provisions for energy harvesting systems