Hello there! I am currently going through the Res. Electric Inspection module and have a question about Aluminum wiring. There is a section that has a diagram of all the wire gages, and two of the Aluminum wires (both of which are for 40 or 50 amp currents respectively) have this sequence on it…
4/4/4/6 AL SER
I have tried to research what it means, but have come up empty thus far. Thoughts?