smoke detectors

[marcin g]

Does a smoke detector need its own neutral or can it be on a network?

 

[mdshunk]

It can be part of the consist of a multiwire branch circuit, but all interconnected smokes must have the same neutral. The neutral is used as one lead of the DC circuit for the interconnect.

 

[bphgravity]

Take some time and read the installation and operation instructions found in the box with the smoke alarm. There is a lot of good information found on these instructions.

 

[William1978]

Does a smoke detector need its own neutral or can it be on a network?

It can be part of a multi-wire branch cir but why would you want to do that it would require to be put on a 2-pole AFCI breaker.

 

[William1978]

It can be part of a multi-wire branch cir but why would you want to do that it would require to be put on a 2-pole AFCI breaker.

Thats if your on the 2008 code for the 2 pole breaker, and by the way welcome to the forum.

 

[mdshunk]

Thats if your on the 2008 code and by the way welcom to the forum.

Actually, for the proper function of the AFCI, any code year that requires AFCI protection, not just 2008.


This is all assuming these smokes are even being installed in a dwelling, and that the installer is bound to install them in the bedrooms.

 

[William1978]

Actually, for the proper function of the AFCI, any code year that requires AFCI protection, not just 2008.


This is all assuming these smokes are even being installed in a dwelling, and that the installer is bound to install them in the bedrooms.

Yes that is correct I had to go back and change my post.

 

[iwire]

but all interconnected smokes must have the same neutral. The neutral is used as one lead of the DC circuit for the interconnect.

Now you know it will work on different neutrals.


I also have some smoke directions that say the smokes can be on different circuits with a small single conductor used as the interconnect.