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11-25-2013, 09:08 PM #1
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- Mar 2007
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Smoke detectors on AFB protected circuit
Did a new construction today. The smoke and CO detectors were wired on an arc fault protected circuit. This can't be right, can it?
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11-26-2013, 05:38 AM #2
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- Columbus GA
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Re: Smoke detectors on AFB protected circuit
Yes, it is correct.
Originally Posted by Ernie Simpson
Newer codes require outlets to be arc fault protected, even smoke detectors.
Think of this
When there is an arc fault on that circuit the arc fault will trip. Since the arc fault tripped, there is no power to the circuit and therefore less chance of a fire. But since the smoke detector has battery backup the smoke detector still works.
This is a nearly perfect plan.
' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
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11-26-2013, 06:30 AM #3
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- Aug 2008
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- Maryland
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Re: Smoke detectors on AFB protected circuit
It is required by the NEC since shortly after 2000.
All answers based on unamended National Electrical codes.
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