I think that's right. There's no indication that it's mechanically strong, so you'd have it wrapped in layers of rubber/epoxy and steel cables in order to suspe

I think that's right. There's no indication that it's mechanically strong, so you'd have it wrapped in layers of rubber/epoxy and steel cables in order to suspend it between power poles or transmission pylons. YBCO tape has a critical current in the 1-10 MA/cm2 range, so if the properties of this RT stuff is anywhere close, the actual superconducting element of the wire could potentially be very thin.