Home Automation - Tanning bed, 220 but on same side of breaker box.
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07-26-00, 12:39 PM
Hypothetically speaking, if I had a friend who wired a 220v tanning bed for someone several years ago, but wired both legs to the same side in the breaker box, meaning, I er, uh, he did not use a breaker built for a 220v, but instead wired each hot leg to a its own single breaker on the same side of breaker box, what would be the consequences?
I've heard that some motors require the two legs to be on separate poles in the box in order to get the 180 degree out of phase benefit. I also realize that their is danger if only 1 breaker trips without the other, since they are not tied together as a 220 breaker is. Since they are just tanning light bulbs, I think these 2 risks would be minimized. However, I am wondering if the white wire would be overloaded. Is that a danger? If so, how real is that danger? As I recall, it is on its own circuit, and I did not share the white wire with any other circuit, so it is only carrying the tanning bed load.
On behalf of my hypothetical friend,
Mark
I've heard that some motors require the two legs to be on separate poles in the box in order to get the 180 degree out of phase benefit. I also realize that their is danger if only 1 breaker trips without the other, since they are not tied together as a 220 breaker is. Since they are just tanning light bulbs, I think these 2 risks would be minimized. However, I am wondering if the white wire would be overloaded. Is that a danger? If so, how real is that danger? As I recall, it is on its own circuit, and I did not share the white wire with any other circuit, so it is only carrying the tanning bed load.
On behalf of my hypothetical friend,
Mark
07-26-00, 08:10 PM
hello mark,
ok from the info in your post it sounds like your hypothetical friend,did ok as long as the 2 singel pole breakers r on top of each other, which they would have to be or you wouldnt have 220. your hypothetical friend, shuld have used a handel tie so both breakers would operate at the same time.
to be on oposet phases you do not have to be on oposet sides of the panel. heres a crude drawing of a panel
L1 L2
l l
l l
breaker 2----l----------breaker 1
breaker 4----------l----breaker 3
breaker 6----l----------breaker 5
breaker 8----------l----breaker 7
breaker10----l----------breaker 9
breaker12----------l----breaker11
as u c breaker 2 and 1 r both tied to line 1(same phase), and breaker 2 and 4 r on oposet phases.
hope this helped u out.
oops drawing looked fine till i sumited l1 and l2 shuld line up with the l in the breaker rows. the l is the line.
[This message has been edited by sprky (edited July 26, 2000).]
ok from the info in your post it sounds like your hypothetical friend,did ok as long as the 2 singel pole breakers r on top of each other, which they would have to be or you wouldnt have 220. your hypothetical friend, shuld have used a handel tie so both breakers would operate at the same time.
to be on oposet phases you do not have to be on oposet sides of the panel. heres a crude drawing of a panel
L1 L2
l l
l l
breaker 2----l----------breaker 1
breaker 4----------l----breaker 3
breaker 6----l----------breaker 5
breaker 8----------l----breaker 7
breaker10----l----------breaker 9
breaker12----------l----breaker11
as u c breaker 2 and 1 r both tied to line 1(same phase), and breaker 2 and 4 r on oposet phases.
hope this helped u out.
oops drawing looked fine till i sumited l1 and l2 shuld line up with the l in the breaker rows. the l is the line.
[This message has been edited by sprky (edited July 26, 2000).]
07-27-00, 09:00 AM
Thanks Sprky. My hypothetical friend thanks you too. I feel a little silly not realizing that it would only be 110v if wired incorrectly. At any rate, I appreciate the good clear advice you gave. Thank you for taking the time to help me with that.
Mark
Mark