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Does code allow to connect a light fixture to a smoke detector?

Does code allow to connect a light fixture to a smoke detector?

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Old 08-10-19, 07:33 AM
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Does code allow to connect a light fixture to a smoke detector?

I like to install a ceiling light fixture with remote dimmer in a location with no ceiling box. Very difficult to run conduit of any kind nearby. However, there is a hardwired smoke detector nearby. I could run a short flex conduit from smoke detector box to new location.
Is this code compliant? I don't think my smoke detector is on a dedicated circuit.
 
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Old 08-10-19, 08:37 AM
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The NEC does not prohibit lights and smoke alarms on the same circuit. Some areas require a dedicated circuit with a breaker lock for smoke alarms. Your local officials can tell you of any local amendments. They would also be able to tell you about conduit rules.
 
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Old 08-10-19, 09:17 AM
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I think you are right, sooner or later I need to find the local official. I am assuming I woudl find that person in the building permit department?

I am pretty certain that my smoke detectors are not on dedicated circuit. There is no dedicated circuit breaker. But I couldn't not figure on what circuit. Signal wire routing is a miser, maybe goes through shared circuits.
 
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Old 08-10-19, 09:49 AM
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Probably on a lighting circuit.
 
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Old 08-10-19, 10:02 AM
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I like to wire smoke detectors on a commonly used lighting circuit. That way if the circuit trips it will not go unnoticed.
 
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Old 08-10-19, 01:41 PM
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I like to wire smoke detectors on a commonly used lighting circuit. That way if the circuit trips it will not go unnoticed.
This is actually required by code on Ontario.
 
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Old 08-12-19, 07:53 AM
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This is actually required by code on Ontario.
I'm going to have to look this up. My 2015 Ontario book (yes out of date), required a dedicated uninterrupted circuit for smoke detectors.

The requirements for active strobe lights when the smoke detectors go off is a requirement in Ontario.
This along with other new construction requirements for fire/CO2 have made my proactive upgrades very, very expensive (I have 3 children with heading aids / cochlear implants).

To the OP, quick call to your local building inspector and or fire inspector should answer this quickly for you.
 
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Old 08-12-19, 08:45 AM
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It was in the 2012 code. The newest I have. If you have a link to a newer version I would love to have it.
From 2012 cec 32-110

(a) smoke alarms and carbon monoxide alarms shall be supplied from a lighting circuit, or from a circuit that supplies a mix of lighting and receptacles, and in any case shall not be installed
(i) where prohibited by Rules 26-720 to 26-724; and
(ii) where the circuit is protected by a GFCI or AFCI;
 
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