Just as an FYI, CCA or copper clad aluminum is cheap, **** wire. When it corrodes the resistance shoots way up. Copper and brass are close enough metals that it takes a long time for corrosion to develop from dissimilar metals where the ends are crimped with connectors. Aluminum notsomuch. Multistrand copper turns green or black down the length under the shielding, but still conducts. Aluminum wire turns to powder under the copper cladding, then the only thing conducting IS the cladding.
For a time in the 1970s they were wiring homes with aluminum wire, then the fires started. Imagine having to have channels cut in your 10 year old homes sheetrock to pull all that bullshit out and rewire with OFC copper. Plus replace trouble prone Federal Pacific stab lock breaker box. What a mess. Thank God mine has all copper wire, but I did have to ditch the FP breaker box.
When I was building and selling A body battery cable assemblies, I had to really look at the listings for wire. A lot of places wont mention if its CCA or OFC. You WANT OFC wire. It means oxygen free copper. In other words pure copper not clad aluminum. I had to ask suppliers specifically for OFC. One time I returned a whole roll because it was CCA and my invoice said it was OFC.
You want reliability and less chance of a fire through internal wire resistance, now you have the answer you need.
