This part of IEC 61000 relates to the conducted immunity of electrical and electronic 
equipment to electromagnetic disturbances coming from intended and/or unintended 
broadband signal sources in the frequency range 150 kHz up to 80 MHz. 
The object of this standard is to establish a common reference to evaluate the immunity of 
electrical and electronic equipment when subjected to conducted disturbances caused by 
intended and/or unintended broadband signal sources on AC mains ports. The test method 
documented in this standard describes a consistent method to assess the immunity of an 
equipment or system against a defined phenomenon. 
Equipment not having at least one AC mains port is excluded. The power ports not intended 
to be connected to AC mains distribution networks are not considered as “AC mains ports” 
and therefore are excluded. 
This standard is applicable only to single phase equipment having rated input current ≤ 16 A; the application of the broadband disturbance to multiple phase equipment and/or equipment with rated input current > 16 A is under consideration. 
NOTE As described in IEC Guide 107, this standard 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 is to 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.dition 1.0 2016-07 INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM Electromagnetic compatibility (EMC) – Part 4-31: Testing and measurement techniques – AC mains ports broadband conducted disturbance immunity test Compatibilité électromagnétique (CEM) – Partie 4-31: Techniques d'essai et de mesure – Essai d'immunité aux perturbations conduites à large bande sur les accès d'alimentation secteur en courant alternatif