resistance
Senior Member
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- WA
Is their something in the 2014 code that requires 12awg if the cable is over 50ft?
cable distance
- Thread starter resistance
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- Licensed Electrician
No.
- Location
- Illinois
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- retired electrician
There is nothing in the NEC, but there are enforceable voltage drop rules in the energy codes that have been adopted in some areas. A 12 amp load on #14 at 50' is approaching a 3% drop, but I am not sure what the actual requirements are in the energy codes.
MasterTheNEC
CEO and President of Electrical Code Academy, Inc.
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Actually I don't think it is in the energy code (that's a proposal to come), it is actually in the IgCC Code (where adopted) and Title 24 out in California.
mwm1752
Senior Member
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- Aspen, Colo
The only reference to 14 & 12 AWG along with max lenght in code I know of off hand is NEC 2014 210.12 (A) (3) b
Just to let others know without having to look that up it's pertaining dwelling unit AFCI 15 and 20A circuits to required locations
- Location
- Placerville, CA, USA
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- Retired PV System Designer
And as mentioned in another thread the UL standard for supplemental arc protection breaker does not even exist yet. 
mwm1752
Senior Member
- Location
- Aspen, Colo
And as mentioned in another thread the UL standard for supplemental arc protection breaker does not even exist yet.
so to those out there supplemental does not mean additional? I was understanding that a UL listed AFCI be it branch circuit rated or combination rated would be the supplement to the AFCI receptacle mentioned. Would it not mean the same as "supplemental electrode" is used in Art. 250 as a manner of additional?
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- Placerville, CA, USA
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- Retired PV System Designer
Nope. It is a new device type which does not qualify as a branch/feeder AFCI, but apparently has some reason to exist.
mwm1752
Senior Member
- Location
- Aspen, Colo
Would it make a difference it the statement was -- a supplemental listed arc protection circuit breaker?
Last edited:
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
It is mentioned in the code indirectly in that all of the other special wordings are referenced in a note to external standards. Supplemental is not, but in another thread one of our members quotes a UL rep as saying that the listing category is under development at this time.
mwm1752
Senior Member
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- Aspen, Colo
Well I sure hope it make projects cost effective---------:slaphead:
- Location
- Placerville, CA, USA
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- Retired PV System Designer
As I recall there was already a standard for branch/feeder AFCI breakers at the time they were added to NEC, there just were not any on the market yet.
This takes that forward view in the NEC to a higher level.
Apparently, for some reason, the CMP was not willing to wait another code cycle.
One would hope that the eventual devices will either be less expensive or less prone to nuisance trips, or both.
This takes that forward view in the NEC to a higher level.
Apparently, for some reason, the CMP was not willing to wait another code cycle.
One would hope that the eventual devices will either be less expensive or less prone to nuisance trips, or both.
resistance
Senior Member
- Location
- WA
This is what i was looking for! TY, and everyone for the feed back!
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