this post was submitted on 30 Jun 2026
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Electric Vehicles
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Copper clad aluminum is also an option, though not sure how it works with DC current. If I recall correctly, ac current travels on the skin so just a coating of copper is sufficient.
IIRC, the skin effect only occurs in AC and not DC, as the alternating current direction changes the magnetic fields and thereby causes eddie currents via Lens' Law. These eddie currents push the current out towards the skin.
These systems tend to be DC afaik, at least until you hit the motor where it needs some rectification anyway, so I'm not sure that a copper-clad cable would really make a big difference.
Not an electrical expert, though.
The issue with copper clad when it comes to DC is voltage drop issues. But that's just DC in a nutshell lol.