Agree Cable Manf should burn in 100%. Some cables were over 500 hours to stop changing. Do not get me going with Rhodium plugs and receptacles. Torture but when done worth the pain.
charles
Companies that sell large volumes of cables will be hard pressed to do this. Smaller companies like TWL and me (in the past... and sometimes now) do this.
When I get a batch of wire in I find the destination end of the spool and hook it up to a load and burn the whole spool for about a week. Then, when I build the cable(s) I burn them for a couple of days, typically.
My burn-in device is a 3A 48V transformer with a variac controlling the voltage that has a random noise generator hooked up to the whole thing that cycles from 2Hz > a couple of GHz that was an inexpensive buy from eBay and it works well. The 3A @ 48V transformer really doe the job on power cables and speaker cables. I have switchable loads from 1 ohm to 500K ohms.
I can also run this puppy hooked up to wire when I cryo it
That method takes 3 days...
I have a batch of wire hooked up to it as I type.
OCD at it's best. I'm so me...