GB/T 17626.34-2012 in English

《GB/T 17626.34-2012电磁兼容 试验和测量技术 主电源每相电流大于16A的设备的电压暂降、短时中断和电压变化抗扰度试验》由TC246（全国电磁兼容标准化技术委员会）归口，TC246SC2（全国电磁兼容标准化技术委员会低频现象分会）执行，主管部门为国家标准化管理委员会。

Scope

This section specifies the test methods and preferred test level ranges for the immunity of electrical and electronic equipment connected to the low-voltage power supply network to voltage dips, short interruptions and voltage changes. This part applies to electrical and electronic equipment with a rated current of more than 16A per phase of the main power supply (see Appendix E for guidance on electrical and electronic equipment with a rated current of more than 200A per phase). This standard applies to single-phase and three-phase equipment installed in residential and industrial areas connected to a 50Hz or 60Hz AC network where voltage dips and short interruptions may occur. This section does not apply to electrical and electronic equipment connected to 400Hz AC networks. Testing of equipment connected to these networks will be covered in future standards. The purpose of this standard is to establish a general criterion for evaluating the immunity of electrical and electronic equipment when subjected to voltage dips, short interruptions and voltage changes. The test methods specified in this standard are consistent methods for evaluating the immunity of equipment or systems to defined electromagnetic phenomena. This part is a part of the basic standard of electromagnetic compatibility. The professional standardization technical committee is responsible for determining whether this immunity test standard is applicable, and if applicable, is responsible for determining the appropriate test level and performance criteria. The Electromagnetic Compatibility Standardization Technical Committee and its subcommittees are prepared to cooperate with relevant professional standardization technical committees to evaluate specific immunity test values for their products.