In my personal experience looking at just the 3d harmonic is going to get you in trouble. Please take the time to look all the way out to the 39th and be prepared for some unpleasent news. You might be able to create an arguement that the current wave shape falls out of the 'special D' with sufficient parallel loading and be allowed to use Table 1. Then the 3d harmonic permitted is 2.3A.
And don't forget JEIDA which requires testing at 100v and 50/60 Hz. Bob
