220 wiring for spa

[Richard J Kinch]

By this principle, no shorted conductors can carry current.

[Rudy]

Swords ! Clubs ! Guns ! Knives !

C'mon guys, drop the war of words and REALLY go at it ! Lets see some 'Gladiator' type action !

[Doug Miller]

Not if they're at the same potential, no.

-- Regards, Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt. And who wants to leave buttprints in the sands of time?

[Doug Miller]

Wrong again.

-- Regards, Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt. And who wants to leave buttprints in the sands of time?

[trader4]

"> If two points are at the same potential, it is _impossible_ for there

"By this principle, no shorted conductors can carry current. "

Did you even take basic high school science? If you take a short piece of wire and connect a dead short from hot to neutral, the conductors are then not at the same potential. The huge current flow through the wire equals the potential difference. If we had a perfect 120V voltage source that could supply any amount of current and connect a short piece of wire to it, the voltage across the wire will be 120V for the brief time until it melts. In the real world, the voltage would be less, but still substantial. And the remaining voltage which would still add to 120V would be distributed along the supply wires due to their resistance. Class dismissed!

[Doug Miller]

Cut poor Richard some slack. He's not from around here. Richard comes from a planet with some really unusual chemistry, where (according to his posts) it's safe to drink gasoline and breathe carbon monoxide, but common household borax is a deadly poison. Apparently, electricity doesn't work quite the same way on his planet as it does here, either.

-- Regards, Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt. And who wants to leave buttprints in the sands of time?

[Richard J Kinch]

I skipped high school physics class. Actually, they kicked me out and gave me credit for it, because I was a know-it-all-show-off. I got sent to the principal's office for arguing with the math teacher about whether the empty-set symbol was a phi or zero-slash. I was right, but respect for authority was more important than truth. Eventually they took me out of the last two years of math class, too. Over time I must have calmed down, because the big research U's gave me three engineering degrees, and industry some flattering job titles.

And my point remains unanswered, herr professor.