0,000000047% loss per block is almost no-loss.
U need to make cable in 1 000 000 000 blocks to have 0.47% loss.
That said, if you move LuV 32768 EU wich is the most EU you get out of any generator, there is absolutely no incentive to use Superconductor wires against Naquadah cables.
Interesting concept, but much easier is to transport charged batteries via quantum ME gate
For 32768EU, Lapotronic Energy Orb Clusters with Europium are not the kind of item you like to transport as batteries until very late game, and there are no higher tier rechargeable batteries. ZPM is not, No UV Batteries, No Max Batteries. And given price/tech level of LuV Lapotronic Energy Orb Clusters; I can't see anything a player could craft for higher tiers.