National standard electrical fast transient burst immunity test of GB / T17626.4, which is equivalent to the international standard IEC61000-4-4. Electrical fast transient burst immunity test is a more common use immunity test project, but also a relatively difficult immunity test in all items, the majority of R & D staff to reflect this test repeatability and comparable rather poor, a pilot project is also more difficult to pass. Intelligent EFT61004 series burst generator requirements for electrical fast transient burst immunity test specifically designed to evalsuate the electrical and electronic equipment power supply port, signal, control and earth ports by electrical fast transient performance (EFT) interfering time to provide a basis for assessment.