My concern with AFCIs is I that I don't understand how they work. I can understand how GFCIs work but is there a unique electrical or electronic signature associated with arc faults?
And what is an arc fault anyway?
And are they that common?
Are there any statistics showing a lower incidence of fires in houses equiped with these devices or is it just that they are required only in new construction? [Compare this with the history of seat belts in cars.]
~Peter
