GFCI on a 12/3?

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Re: GFCI on a 12/3?

Originally posted by infinity:
Would sharing the neutral between one SA circuit and one Non-SA circuit be a violation?
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No, why do you think that it would?
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WEll, 210.52(B)(2) says ...the circuits shall have no other outlets.

The neutral is a major part of the circuit!

so, Since the neutral is part of the circuit, and the circuit can't have any other outlets, the neutral can't have any other outlets.

I don't like it, but I can't find an exception to allow it.

Dave
 
Re: GFCI on a 12/3?

Originally posted by davedottcom:
Originally posted by infinity:
Would sharing the neutral between one SA circuit and one Non-SA circuit be a violation?
Click to expand...
No, why do you think that it would?
Click to expand...
WEll, 210.52(B)(2) says ...the circuits shall have no other outlets.

The neutral is a major part of the circuit!

so, Since the neutral is part of the circuit, and the circuit can't have any other outlets, the neutral can't have any other outlets.

I don't like it, but I can't find an exception to allow it.

Dave
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Same goes for Bath GFCI's. 210.11(C)(3) says ...circuit shall have no other outlets.

Same for Laundry.

Unless the neutral isn't considered part of the circuit!?

Dave
 
Re: GFCI on a 12/3?

210.4(A) allows a shared neutral circuit to be considered to be multiple circuits. An SA circuit and a nonSA circuit can share the same neutral but CANNOT have phase to phase load.

At one time Mahoning County ( where Youngstown, Ohio is ) had a requirement that each receptacle location in a kitchen had to have 240 volts available in case somebody needed to plug in a 240 volt medium size appliance. Medium sized applicances appliances never materialized. I have seen a duplex receptacle that was both a duplex 120 volt receptacle and a DUPLEX 240 volt receptacle. Each half of the receptacle had 4 slots - 2 parallel and 2 tandem. Old houses have the strangest things.
 
Re: GFCI on a 12/3?

Originally posted by mc5w:
210.4(A) allows a shared neutral circuit to be considered to be multiple circuits. An SA circuit and a nonSA circuit can share the same neutral but CANNOT have phase to phase load.
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mc5w,you might want to look code sections up rather than shooting from the hip. :D

A multiwire branch circuit may feed both line to line and line to neutral loads.

MWBC.JPG


You could, if you wanted to, wire a circuit as pictured above.

210.4(C) Line-to-Neutral Loads. Multiwire branch circuits shall supply only line-to-neutral loads.

Exception No. 1: A multiwire branch circuit that supplies only one utilization equipment.

Exception No. 2: Where all ungrounded conductors of the multiwire branch circuit are opened simultaneously by the branch-circuit overcurrent device.
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Re: GFCI on a 12/3?

Originally posted by mc5w:
210.4(A) allows a shared neutral circuit to be considered to be multiple circuits. An SA circuit and a nonSA circuit can share the same neutral...
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Thanks Mc5w!

I can't believe I kept missing that!? :(

Dave

Has this site's "speed" really slowed down lately or is it my new PC?
 
Re: GFCI on a 12/3?

Dave, it's real slow here this morning. Maybe something to do with activity associated with the storm.

Roger
 
Re: GFCI on a 12/3?

Originally posted by davedottcom:
WEll, 210.52(B)(2) says ...the circuits shall have no other outlets.

The neutral is a major part of the circuit!

so, Since the neutral is part of the circuit, and the circuit can't have any other outlets, the neutral can't have any other outlets.

I don't like it, but I can't find an exception to allow it.

Dave
Click to expand...
Sometimes you guys amaze me with the stuff you come up with. :eek:
 
Re: GFCI on a 12/3?

Originally posted by electricmanscott:
Sometimes you guys amaze me with the stuff you come up with. :D

Apparently someone else (Who ever wrote 210.4(A) thought of it long before I did.
:p

Dave
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