Redirect appreciated if needed.
How does an arc fault circuit interruptor work? What does it do in order to detect an arc?
So far, nobody, not even the dealer of our electric supplies has been able to explain how an arc fault circuit interruptor works. I've not found the answer on the internet either. The explanations say "unique circuitry," or "arc detection technology" and other vague words that do not explain _how_ it works, only what it does.