Voltage dips，short interruptions and voltage variations immunity
tests
Assess the resistance of electrical and electronic equipment to
voltage sag, short interruption, and voltage change.
Standard：EN 61000-4-11; IEC
61000-4-11; GB/T 17626.11
Electrical fast transient/Burst immunity test
Assess electrical and electronic power supply ports, signal and control ports in response to repeated rapid transient interference performance. Verify that electrical and electronic devices are resistant to various types of transient disturbance from switching transient processes.
Standard：EN 61000-4-4; IEC 61000-4-4; GB/T 17626.4
Surge immunity test
Assess the resistance of electrical and electronic devices to surges caused by switching and lightning transient overvoltage.
Standard：EN 61000-4-5; IEC 61000-4-5; GB/T 17626.5
