[QUOTE]Originally posted by sparky:
[B]Why can't i run my home @ 480V 3ph like a factory? Won't i save $$$, that's why they do it right?


I've had this Q repetively and am wondering how the rest of you field it
[Linked Image]


Never had anyone ask that but here are few reasons of why not that I can think of.

480 3Ø was designed for heavy power. 277/480 was designed for heavy power/ heavy lighting. Residential areas don't need such power.

They would have to buy/maintain a stepdown trans. Would have to worry about there A/C single phasing if one leg was out. The cost of such an installation would be prohibitive to the savings involved if any. A utility is not going to provide 480 to a residence. There again the cost would also be prohibitive to the utility because the revenue generated from that customer would take a long time to pay for installation and maintenance. 480 fires(faults) don't just go out. They keep burning.

Well theres a few ideas you can throw at them next time they ask.

If I think of more I'll let ya know. [Linked Image]