GB/T 12325-2008
ActivePower quality - Deviation of supply voltage
电能质量 供电电压偏差
Application Summary AI generated
This standard specifies the allowable limits for voltage deviation at the point of common coupling in public power supply systems, covering both low-voltage (220/380V) and medium-voltage (10kV and above) networks. It is applied by electric power utilities and industrial users in China to assess and control voltage quality, ensuring that voltage levels remain within ±7% for low-voltage and ±10% for medium-voltage systems under normal operating conditions. The standard is used in power system planning, operation, and compliance testing to prevent equipment damage and performance degradation caused by excessive voltage variation.
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