What would, with currently available mains cabling options (conductor metal, skin effect mitigation, shielding, etc, all of it) be an ideal dedicated line, as in as perfectly impedance and noise free and whatnot, as is today possible?
My haphazard guess is suitably thick-walled, cross-braided, hollow and ovally shaped pair of +/- conductors accompanied by a (solid core?) ground wire, with all Furutech rhodium connects. I haven’t the faintest idea whether or not skin effect affects the ground wire in any meaningful way. I’m not even sure if it matters much in mains transmission…
Well, the skin depth of 50Hz (50Hz mains here) in both silver and copper appears to be close to a centimeter. How come this is overcome without thick as ffff cabling with nearly 2cm diameter? This is something that mystifies me in the skin effect.
I understand how hollow conductors greatly mitigate skin effect for HF but what happens with lower freqs, like with mains? Do they just truncate to the inner edge?
Surely since quantifiable science confirms that optimized oval, hollow (parallel) +/- speaker cables to have the lowest field spread and lowest current bunching, this holds true for AC wire?
Please shed some light on my questions and tell me of a near-perfect dedicated line (excluding exotic nanocarbons and superconductors, they’re just too expensive for all but the wealthiest and most innovative audiophiles)