Want to install light adding wire from smoke alarm network junction box.would that be ok and if yes - how???

Question

I' m pretty sure I can make it work: my major concern if that would interfere smoke alarm systems performance, or could it cause some other issues???

Thanks so much

Answer 1

just us a lamp or call an electrician diyer are the #1 firestarters

Answer 2

Your smoke alarm should stay on a circuit by itself.I would not recommend you use that junction for a light.

Answer 3

If you are talking about the junction box at the beginning of the network, then there should be no problem.  If you are talking about adding a light to go on when the alarm sounds to the 120 volt interconnect circuit where the alarms are all connected together and all go off when one goes off (required by code in recent installations) I don't know of the amps rating of that circuit.  I would feel much safer if a rather low current relay were added to the alarm circuit which would isolate the amps of the light to its own circuit.

Answer 4

code says they are to be wired with a min.14/3 wire. but it is a code violation to have anything connected to the interconnected smoke alarm circuit that's not a smoke alarm.

now if you don't care about codes,  then a light circuit on a 14/3 wire is fine. don't use the red wire. it is the signal wire for the smoke alarms *** IF*** it was installed correctly.  but my recommendation is DONT.

if you need a light that bad run a new wire from the closest wall plug