Thank you millercarbon

SUGGESTION: if you could thread the entire assembly through a thick walled PTFE tube, it would solve the problems.  It would like pass UL certification at that point, but there's the big expense of getting tested/certified for legit purposes.  The last section of cable that connects to IEC/male plugs need to be covered with a durable material as well.

ok, I’m going to have to be a warning/downer here. I took a look at this cable and the design definitely makes total sense, especially with the copper wires being 99% in free air. However, this cable is never going to pass UL certification. All it would take is rubbing against the techflex which will frey (which is extremely easy). and all of a sudden, you have exposed "live" wires which are definitely a fire hazard inside a house.  Any sharp object can just pierce through the holes in the techflex and make contact with live wires as well. I can definitely see that the performance of this cable would be exceptional because there is absolutely no restriction from any wire insulation, but anyone who uses this should do at their own risk.

Once again, I’m very sorry for stating a negative point of view here.

Why is this a fire hazard? I assume the conductors are covered in a slightly oversized clear Teflon tube…..right? At least this is another layer of protection. I doubt the copper conductors are naked. They would oxidize.

Nope, they are naked bare copper wires. At least the outer wires are tinned. The central wire does not looked tinned. They are threaded through plastic discs to allow them to sit in "free air" without touching each-other. However, he just slips over a single techflex coating and calls it a "finished cable". This is explained in both description as well as seen in the product pictures.

Sounds like the sort of *Quality* product MC would *enthuse* about

I believe I have also seen millercarbon recommend to people to take out the fuses from their equipment and substitute a hard solid copper bar/wire (i.e. no fuse).