GB/T 17626.11-2008

This part of GB/T 17626 specifies the test methods and preferred test level ranges for the immunity of electrical and electronic equipment connected to low-voltage power supply networks to voltage sags, short-term interruptions, and voltage changes. This part applies to electrical and electronic equipment with a rated input current of no more than 16 A per phase, connected to 50 Hz or 60 Hz AC networks. This part does not apply to electrical and electronic equipment connected to 400 Hz AC networks. The testing of these networks will be addressed in future standards. The purpose of this part is to establish a common criterion for evaluating the immunity of electrical and electronic equipment to voltage sags, short-term interruptions, and voltage changes.