This is a purely hypothetical case that I'm posing.
Let's say you have an existing 20 amp branch circuit which you, for whatever reason, tap into somewhere with 14 gauge wire. So you downsize the fuse or circuit breaker in the panel to 15A to protect the 14 gauge wire.
Here is my question. Is there anything in the code that says you have to leave a note on the inside cover of the panel to explain why a 12 gauge wire in the panel has only 15A overcurrent protection? It seems to me that common sense indicates that you should. I'm just wondering if anyone knows offhand if the code has anything to say about this.
