EFT

The electrical fast transients are generated by the switching of inductive loads. Generally, the EFT/B has no unique parameters that depend upon the characteristics of the switching contact or the switched load. The necessity to have a tool to assist in the prevention of undesirable effects due to the Electrical Fast Transients on equipment, have initiated the development of the standard testing procedure described in IEC-61000-4-4.

IEC 61000-4-4 is about immunity testing (measurement techniques) against repetitive electrical fast transients (EFT), also called bursts. This standard is part of the Basic EMC Publications. IEC 61000-4-4 defines immunity requirements, test setups, test procedures, test equipment (and their calibration and verification) and ranges of test levels related to repetitive electrical fast transients (EFTs, bursts). In reality, bursts originate from switching transients: interruption of inductive loads, relay contact bounce, etc. The object of IEC 61000-4-4 is to establish a common and reproducible reference in order to evaluate the immunity when subjected to bursts on ​Supply ports, IO (signal, control) ports (if cable length >3m) and Earth ports

Accutest Can offer Compliance Testing for Electrical Fast Transient/Burst immunity Test as per IEC-61000-4-4 in the below mentioned list of product family standard. However, for Developmental testing we can offer other standards that are not listed on the list below.