I am replacing a 20 year old wall oven. When I opened the electrical box I noticed very large gauge aluminum wiring (6 gauge?). I purchased a box of AlumiConns (3 port style) to connect the aluminum wiring to the 10 gauge copper wire in my new oven.
Can I simply untwist a couple aluminum strands from the larger bundle? I plan to insert two aluminum strands into two ports on my AlumiConn and the 3rd port will go to the oven's copper wire.
Note in the 2nd photo below that there was no anti-corrosive paste inside the wire nuts. I was a little surprised how well this 20 year old connection stood the test of time, the wire nuts showed no sign of getting hot and the old copper and aluminum wire looked fresh. I'd still like to update the connection to current code and not have to worry about a future electrical fire decades from now.