Electromagnetic compatibility(EMC) – Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low- voltage systems with input current >16 A and ≤ 75 A per phase.
IEC 61000-3-12:2011 deals with the limitation of harmonic currents injected into the public supply system. The limits given in this International Standard are applicable to electrical and electronic equipment with a rated input current exceeding 16 A and up to and including 75 A per phase.
Major changes:
The significant technical changes with respect to the previous edition are:
The replacement of the reference fundamental current I1 by the reference current Iref for the calculation of emission limit
A new added table of current emission limits (Table 5)
New added annex (Annex A) to define test conditions for some types of requirements
Deletion of the former Annexes B (Approximate interpolation formulas) and D (Information on the PWHD factor)
