Re: smoke detectors/arc fault
What is the benefit of a dedicated circuit? (AFCI or not) :confused:
What would be the down side of sharing a circuit, the smokes are certainly a minimal load.
As Don said typical reaction to the chirp is to take batteries out, if on a general lighting circuit it will be looked into and in the mean time you have the batteries.
Most systems work best if they are kept simple rather than made complicated; therefore simplicity should be a key goal in design and unnecessary complexity should be avoided.