Sorry, every "story" must have at least one detector, not the actual floor...
I don't think that a dedicated circuit is specified, I've shared with the lighting in the past, the interconnecting part pretty much assures that they'll be on the same circuit, so it hasn't been an issue, yet. If the breaker trips on the circuit with the detectors, it would be noticed quicker if it shares a circuit with commonly used devices such as lights, that's the argument presented to me on sharing the circuit with lighting.
I'll have to check on any ordinances, that sound like the right avenue to me, though.
[This message has been edited by sparky66wv (edited 05-10-2001).]
