Wait, there are special electricians for three-phase in the US, is this like an additional certification or are the normal ones scared of three phases?
Electricians specialize. Resi guys do residential and rarely to never handle 3 phase. I do commercial and light industrial because heavy industry isn't around here and I despise doing resi work. Three phase is usually run everywhere by the power co and a transformer (pole pig) converts to single phase near the residence.
Not sure if there's an additional certification, but it would not surprise me at all that an electrician here would not want to work on a home with an unusual setup that they're not particularly familiar with.
