Power in the UK is 440V 3 phase which gives 240V phase to neutral. Actually, they have gradually reduced that - probably around 220V phase to neutral now.
How about the voltage (or impedance) between neutral and earth? In the USA/CAN, neutral is connected to a ground-rod driven into the earth below the house.
In the US, every (modern) outlet has two paths to earth ground; one through the "neutral" (white) wire, which is the return for the load current, and the other through the "ground" (green or bare copper) wire, which is not-a-current-carrying conductor (unless there is a fault).
I'm trying to understand how that is done in the UK/EUR?
I believe that for most, if not all, the world's electrical systems the green wire (or a combination with green) has been reserved for exclusive use of a safety ground wire.
Many regulations request that even the holding screws to be tinted green
Straying off topic slightly but I just wanted to point out that the closest we have gotten to a world wide power connector and power supply convention is USB.
Could a UPB - Universal Power Bus - come into existence in the not too distant future?