My understanding is that the 2008 NEC requires AFCI protection on all 15 and 20 amp branch circuits, including lighting circuits. I finishing a basement and have 3 circuits that are dedicated to lights, but 2 of these have a shared neutral. I have read that AFCI breakers don’t work with shared neutals. I don’t have other circuits available in the basement. Other options other than running a new circuit from the panel??
Thanks
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You really have to ask your AHJ but if they are enforcing the code as written yes, you will need AFCI protection and a two pole is either very expensive or unavailable depending on the brand you need.