Don (rescapt19), Scott 35, others;

Explain the problems with harmonics on the 1 Ø panelboards on the 3Ø 4W 208/120V.

Is the problem only at the main panelboard equipment where the 1Ø systems are split-up or at the computer terminals in each apartment unit?

I would think that the neutral can not be reduced in such installations just due to 220-22 (last paragraph) .

Glenn

[This message has been edited by Gwz (edited 06-09-2002).]