In news said, they use 1KV for ultrafast charge (400km in 5 minutes). Probably, three-phase.
And you hit bull eye - as I know, ultrafast charger cable usually have liquid cooling.
And you hit bull eye - as I know, ultrafast charger cable usually have liquid cooling.
If there’s liquid cooling for the conductors you can pump a lot more amps through them than you can at 75C. If you can keep the ambient temp to 0-10C, you multiply the ampacity in the 75C column by 1.36, I bet you can go way lower if it’s liquid cooled.