I am trying to understand the IEC1000-3-2 standard. My equipment is classified as Class D.
Table 3 - Limits for Class D Equipment, has two columns for the limits, one is maximum harmonic current per watt and the other is maximum permissible harmonic current. The two columns don't appear to agree. Since the maximum input power for Class D equipment is 600W, should the maximum permissible harmonic current for the third harmonic not be 600x.0034 or 2.04A? The table gives a maximum limit of 2.30A. The only harmonic that agrees with my interpretation is the fifth. All the rest are higher than when doing the calculation. Am I missing something? I do not have a copy of EN61000-3-2, what is the difference between the two standards? Thanks for you help. Fred Waechter SMPS Consulting [email protected]
