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Standard No.: GB 17625.2-1999
Language: Chinese, Available in English version
Release Date: 1999
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2008-01
Replace By: GB 17625.2-2007; GB/T 17625.2-2007
Latest: GB 17625.2-2007; GB/T 17625.2-2007

Scope: This standard is concerned with the limitation of voltage fluctuations and flicker produced by public low-voltage systems. This standard specifies the possible voltage variation limits of the equipment under test under certain conditions. And gives the evaluation method guidance. This standard applies to electrical and electronic equipment with an input current of no more than 16A per phase and intended to be connected to a public low-voltage power distribution system with a phase voltage of 220V~250V and a frequency of 50Hz. The standard test is a type test, and the specific test conditions are given in Appendix A. The test circuit is shown in Figure 1. Note: The limit value of this standard is mainly determined according to the subjective severity of the flickering of the 230V/60W spiral filament lamp due to the fluctuation of the supply voltage. For the power supply system whose nominal voltage (phase line-neutral line) is lower than 220V and (or) frequency is 60Hz, its limit value and reference circuit parameters have not been considered yet.

GB 17625.2-1999 history

2007 GB 17625.2-2007 Electromagnetic compatibility (EMC).Limits.Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16A per phase and not subject to conditional connection
1999 GB 17625.2-1999 Electromagnetic compatibility. Limits. Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current≤16A