wyliesdiesels
Well-known member
per 250.122, the EGC is sized the same for #14, #12, and #10.
Also a bond is not the same thing as an EGC
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Multiple 240v outlets on one circuit?
- Thread starter Aaron_W
- Start date
per 250.122, the EGC is sized the same for #14, #12, and #10.
Also a bond is not the same thing as an EGC
per 250.122, the EGC is sized the same for #14, #12, and #10.
Also a bond is not the same thing as an EGC
The OP being in California, better to follow the NEC rules. Would need to be a considerable length run @240V to require upsizing the wire.
I do believe NEC's EGC is the same as the CEC's bonding conductor. CEC is devoid of the EGC term. This thread touches on it by post #3.
https://www.electriciantalk.com/f2/cec-nec-terminology-94377/
AntonLargiader
Well-known member
I don't know if this is exactly the same thing, but my dad's house has some sort of situation where it seems two items (the furnace and I think the pool) are apparently physically swapped on the same 240V breaker each spring and fall!! I just found out about this and am going up to investigate now because he needs his furnace hooked up again. He has lived there for about 15 years and apparently this has been going on the whole time with a friend switching wires around. This year we have been keeping the pool open longer so it has become an issue.
Given that his 240V loads each have a disconnect anyway and are therefore enabled and disabled at will, is there anything wrong with two simply being on the same breaker (if the breaker will take double taps) since he will only use one at a time?
Given that his 240V loads each have a disconnect anyway and are therefore enabled and disabled at will, is there anything wrong with two simply being on the same breaker (if the breaker will take double taps) since he will only use one at a time?
@AntonLargiader IMHO, decide this one for yourself. You clearly understand the practical limitation. I doubt its code compliant however. (I have lots of things like that.)
I'm assuming the circuits are the same ampacity where the breaker continues to protect the conductors. Only certain breakers are approved to land 2 wires, otherwise you need a splice.
I'm assuming the circuits are the same ampacity where the breaker continues to protect the conductors. Only certain breakers are approved to land 2 wires, otherwise you need a splice.
AntonLargiader
Well-known member
The compliance thing is the only thing I'm asking. I know it would be manageable. Many people here talk about using few enough items on a circuit that they wouldn't overload it. With 120V circuits we are all in that position (I can plug three vacuums and a blow dryer into one circuit any time I want) but I don't know if hard-wired 240V is the same. I could look it up but I thought I'd ask first as it seems like one of those things that deserves more context.
theoldwizard1
Well-known member
Not sure what kind of furnace requires 240V !I don't know if this is exactly the same thing, but my dad's house has some sort of situation where it seems two items (the furnace and I think the pool) ...
Given that his 240V loads each have a disconnect anyway and are therefore enabled and disabled at will, is there anything wrong with two simply being on the same breaker (if the breaker will take double taps) since he will only use one at a time?
If you put them both on the same breaker at the same time, you are violating NEC.
AntonLargiader
Well-known member
Turns out it was a baseboard heater, not the furnace. What section?
I’m not an electrician, but I’ve been around quite a bit of wiring in my life. Electricians have always re-enforced to me that the breakers job is to protect the wire between the outlet and the breaker. Assuming your wire and breaker are sized correctly, I see no harm in pigging backing another outlet off the existing line. In the event both machines were started at the same time (typically max amp draw is on start up, once the tool is running, amp draw typically drops), the breaker would trip protecting the wiring. I might be oversimplifying it, but it seems logical to me that you could have 10 outlets on a line, as long as the breaker is sized to the wire size, not the machine amp draw.
AntonLargiader
Well-known member
Yeah, but thinking back I think there's a restriction on doing that with 240. This comes up sometimes when people ask about having several receps to allow powering a single welder from multiple spots. Been a while since I've had to think about this.
nadogail
Well-known member
I see no problem in having multiple outlets on a circuit as long as they don’t overload the conductors and the breaker.
The compliance thing is the only thing I'm asking.
Who's checking?
No permit or receipt... no record any work happened.
Real estate laws usually have a time limit on disclosure... 2 years for my jurisdiction. (Good luck proving/disproving.)