irbirb
Member
Of course, poly-phase feeds can cause problems if one is not careful. I had a telephone technician blow two computers and interface boards before he called for help. It turned out that the outlets in the room were on different phases. The telephone switch was on one and the outlet he plugged his service PC into was on another causing a 208 VAC differential between the two hot sides instead of the expected 0 VAC. This was in Manhattan but it could have been almost anywhere.
hmmmmm. the electricity in my place here is just plain weird sometimes.
i wonder if that's not somehow related to it coming in as 3 phase.