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| 480 isn't more efficient in electricity use, just in copper wire use. Along the way it increases the cost of panels and switches, won't support 120 volt loads without an added transformer that draws power all the time. Arcs in 480 volt circuits tend to burn down the whole panel, while 240 volt arcs tend to burn a gap and quit. Some experienced electricians injured by 480 some time in the past simply refuse to work on 480 for any reason.
Gerald J. | |
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Which electric power should I use?
