04-27-2022, 11:24 AM
(04-27-2022, 10:34 AM)Stichill_imp Wrote:The reason Europe runs 220-240V is to double the voltage and halve the amperage, so the wire gauge can be smaller / cheaper. Smart in some ways, though I'm not a fan of the huge, awkward isolating plug/receptacle standards.(04-27-2022, 01:46 AM)Gone in 60_imp Wrote: I was thinking about that, Tev. So, you guys don't have to upgrade your household electrics to charge EVs, right?The reason Europe runs 220-240V is to double the voltage and halve the amperage, so the wire gauge can be smaller / cheaper. Smart in some ways, though I'm not a fan of the huge, awkward isolating plug/receptacle standards.
So, although the voltage is double, the circuit ampacity is half...so kVA is about equal.
US: 120V * 20A * 80% safety derating = 1.92 kVA
EU: 240V * 10A * 80% safety derating = 1.92 kVA
So, although the voltage is double, the circuit ampacity is half...so kVA is about equal.
US: 120V * 20A * 80% safety derating = 1.92 kVA
EU: 240V * 10A * 80% safety derating = 1.92 kVA
Mmmm, give me more coulombs per second - I'd say.
