@bloor Yah, it's difficult to see what they've done with the black wires. I may have assumed they were weaved (if not twisted) – and my assumption might be wrong.

At first I thought they were doing something to minimize skin effect, but when it turned out to be power lines, it required a re-think.

I try to assume people aren't complete idiots and that there is some small effect they're chasing. Your cage dipole, effectively making a coaxial line, may be a better guess.

@bloor I think I see what they're trying to do. By breaking the wires up and interweaving them, my guess is they're trying to get the magnetic fields to cancel. Maybe minimize the magnetic coupling between the power and signal lines?

I think any improvement is going to be really minor, but I get it.

I think you could do something similar by splitting power through multiple pairs with differing twist rates (similar to how CAT6 cable is built). But that wouldn't look as AWESOME as this!