Let me try this again.....I'm new to this BB.
The facility I work at is filled w/ multiwire branch circuits. It is and was very common years ago. What we are experiencing is massive harmonic distortion as dept's decide to add computer labs where their were once broom closets.
The work they are creating for us here is endless as the neutrals are burning up because of it.
Tough to teach some of these electricians about harmonic distortion and the dangers of it. They are so use to dragging a single neutral along with the three phase conductors.
Now if I could only get them to start isolating their grounds 8^)
Great forum for these types of discussions. Lots of great postings.
