A certain online retailer asked me for a review of Pangea power cords..

Some things that many audiophiles, always on the quest for something better and more expensive, don't get about hospital grade receptacles:1) they have to meet very stringent, Federal, State and Local Codes for quality, grip, conductance and reliability. 2) Their contacts, screws and blade contacts, are made of high quality nickle plated brass, the purpose being:  On point to point contact, as in a receptacle, the voltage transfer is considered lossless - meaning there is no measurable voltage loss and no altering affect on the transfer of voltage. Unlike copper - nickel plated brass is tough - it holds it's grip and stays durable, even after many cycles of plugging and un-plugging. While the surface of copper tends to glaze when exposed to oxygen, causing a lose of conductivity - nickel/bras does not. The properties of nickel plated brass, even after many years of continual current, have proven to be very stable. If there is a sonic quality attributed to a tight, conductive connection, you can expect it to start out very good and remain the same for a long time, without the many hours of break in associated with some outlets.
Re. cables: of course, insulated stranded 99.9 pure, Ox free copper, of adequate gauge (14, 12, or 10 AWG - depending on application) rubber sleeved and shielded or chocked with a ferrite clamp in areas of possible EMI/RFI interference.
If you live in one of those rare areas of bad power, don't expect expensive power cables to fix it for you - get a line conditioner. Much more effective and, in the end, would probably save you a considerable bit of $$$...JMO...Jim  

Yeah, hospital grade duplex. Last forever. grip well. But not one single person in a hospital cares about how audio components SOUND, connected to those hospital duplex.  
Same as asking what sport car to get, and the guy tries to tell you: "This truck can tow 20,000lbs..." And HE thinks he is giving you great advice.

Trucks and cars has nothing to do with wall outlets and the only thing unique and special about hospital grade wall outlets is their stringent quality, their ability to deliver unrestricted power from the source to a device and the ability to maintain a secure grip and contact with the blades of a plug. Wither a $100K medical device or a $10K amplifier is plugged into it, it’s job is the same; anything beyond that must be magic...Jim

" anything beyond that must be magic.." Anything folks fail to understand 'must be magic'...                          
No problem. If you think aftermarket powercords are magic? Fine by me.

Aside from working for one of the worlds largest manufacturers of all manner of electronic devices, I've built and wired (to code) three homes and a large shop building. I also organized and supervised construction projects on a large campus in CA - having to deal with all of the codes and permits involved. I don't believe I have a problem with the understanding of cables, cords and wall outlets.
Elizabeth -I do appreciate quality and performance but also good value, it seems that the Pangea cords of your original thread, checks all of those boxes.
Happy listening...Jim