RE: TimberTrader3 Aug 2023 23:23
That's correct AgArCu.
That's why I referred to high current of EV's.
I said mains voltage and higher.
You will find aluminium was used, but VIR ( Vulcanised Indian Rubber) was used in house's and in the 1970's was replaced in house wiring as this was aluminium and cotton sheathed.
That's why we had so many house files.
The Steel wired armoured section of three phase cables is also aluminium, but cores are copper.
Overhead 400 kilovolt nowadays 440 kilovolt cables can be aluminium or copper depending on volt drop or what is known as the 2.5 % rule
Nobody uses aluminium to these days for long runs as even with high voltages you have large current carrying capacity.