This part of IEC 61000 relates to the immunity requirements, test methods, and range of
recommended test levels for equipment to unidirectional surges caused by overvoltages from
switching and lightning transients. Several test levels are defined which relate to different
environment and installation conditions. These requirements are developed for and are
applicable to electrical and electronic equipment.
The object of this standard is to establish a common reference for evaluating the immunity of
electrical and electronic equipment when subjected to surges. The test method documented in
this part of IEC 61000 describes a consistent method to assess the immunity of an equipment
or system against a defined phenomenon.
NOTE As described in IEC Guide 107, this is a basic EMC publication for use by product committees of the IEC.
As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity
test standard should be applied or not, and if applied, they are responsible for determining the appropriate test
levels and performance criteria. TC 77 and its sub-committees are prepared to co-operate with product committees
in the evaluation of the value of particular immunity tests for their products.