smoke alarms

[grm]

:dunce::?Are smoke & CO detectors required to be on a seperate circuit?:?

 

[480sparky]

Not per the NEC.

 

[Dennis Alwon]

This is not an Nec issue however it is not required by the building company. It is possible that your area may have an amendment to the code that requires an individual circuit.

 

[jxofaltrds]

Two good answers but why do you ask?

 

[Hendrix]

Two good answers but why do you ask?

I would never put them on a separate circuit. Too easy to forget to activate.

 

[RICK NAPIER]

2007 NFPA 72 11.6 does not require a dedicated circuit for household fire alarm systems but for other than household systems it is required 4.4.1.4.1

 

[JDB3]

One town in my area requires that smoke detectors in residences be on with a lighting circuit. Probably so the resident will not turn the circuit for the smokes off.

 

[WIMaster]

One town in my area requires that smoke detectors in residences be on with a lighting circuit. Probably so the resident will not turn the circuit for the smokes off.

I believe this is a good pratice as smokes usually won't tell you that they do not have AC power unlike a FA system beeping/flashing trouble.

 

[John120/240]

I believe this is a good pratice as smokes usually won't tell you that they do not have AC power unlike a FA system beeping/flashing trouble.

Required 120 V w/battery backup smoke dectors in new homes. If the smokes are on a

seperate circuit someone should notice the incessant chirping if 120 V power is lost. But nothing

protects from the Darwin principle if home owner removes the batteries.

 

[hurk27]

Required 120 V w/battery backup smoke dectors in new homes. If the smokes are on a

seperate circuit someone should notice the incessant chirping if 120 V power is lost. But nothing

protects from the Darwin principle if home owner removes the batteries.

E'rr is this something new??

I have 120/battery smokes in my house now and they only chirp when the 9 volt battery is dead? oh and they are not supplied by 120 volts just mounted to the ceiling running on battery only.

 

[WIMaster]

E'rr is this something new??

I have 120/battery smokes in my house now and they only chirp when the 9 volt battery is dead? oh and they are not supplied by 120 volts just mounted to the ceiling running on battery only.

I have the same setup with the exact same results.
The smokes have never chirped when I lost AC power due to me or the POCO.

 

[John120/240]

Maybe I am remembering it wrong. It has been 4 years since I installed smokes.

 

[spark master]

I have the same setup with the exact same results.
The smokes have never chirped when I lost AC power due to me or the POCO.

you guys are saying you have hard wired smokes, that are not hard wired or interconnected ????
why ????? to fool the inspector ?