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Thread: 20 Amp AFCI overfusing
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01-23-2012, 02:56 PM #1
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20 Amp AFCI overfusing
Today I inspected a "total rehab" with a new 200 Amp panel with a city inspection sticker on it.
All of the AFCI circuit breakers were 20 Amp, with #14 conductors.
Did this guy just not have any 15 Amp AFCIs in the truck? Why would someone think this was ok?
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"There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
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01-23-2012, 04:05 PM #2
Robert Meier Guest Re: 20 Amp AFCI overfusing
A clear violation. NEC 240.4(D).
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01-23-2012, 04:07 PM #3
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Re: 20 Amp AFCI overfusing
Drugs?
"It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey
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01-23-2012, 04:34 PM #4
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Re: 20 Amp AFCI overfusing
call the city inspector and ask wtf
cvf
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01-24-2012, 07:49 AM #5
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Re: 20 Amp AFCI overfusing
disregard
Last edited by Mike Gault; 01-24-2012 at 07:51 AM. Reason: made no sense - referenced 240.4 (G)
We know why you fly: because the bus is too expensive and the railroad has a dress code...
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01-26-2012, 11:46 AM #6
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Re: 20 Amp AFCI overfusing
Probably. They're the same price and, well, it's a hassle driving back down to the supply shop.
Originally Posted by John Arnold
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01-26-2012, 11:53 AM #7
Robert Meier Guest Re: 20 Amp AFCI overfusing
Does he own a codebook? Originally Posted by John Arnold
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01-27-2012, 08:52 AM #8
cuba_pete Guest Re: 20 Amp AFCI overfusing
Did the city inspector own a code book? Originally Posted by Robert Meier
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02-05-2012, 03:04 PM #9
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Re: 20 Amp AFCI overfusing
Not to belabor the "knowns", 20 OPD with a 14 AWG conductor, but I am curious as to how you made the determination that these were 14 AWG conductors.
Did you pull the panelboard cover and view the connections on the panelboard? Or do just about all of the conductors going into this panelboard have 14 AWG on the cable sheaths?
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02-05-2012, 07:26 PM #10
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Re: 20 Amp AFCI overfusing
Based on this being a recent rehab it would not be had to see the gauge of the wiring used with type NM cables due to the color coding of the sheath. Also looking at a conductor you should be able to recognize the size.
All answers based on unamended National Electrical codes.
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02-06-2012, 05:04 AM #11
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Re: 20 Amp AFCI overfusing
Yes, I pulled the cover and looked at the individual conductors and traced them to the cable sheathing, as Jim said. Originally Posted by Donald Farrell
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Did you pull the panelboard cover and view the connections on the panelboard? Or do just about all of the conductors going into this panelboard have 14 AWG on the cable sheaths?
"There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
www.ArnoldHomeInspections.com
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