Originally Posted by west lakes
Not sure I agree and your take on relation of phase to neutral & phase to phase Uk system is ph - ph is 1.732 (root3) times ph to n. i.e before europe standardised 415/240.
The figures I quoted were Holland, not too long ago (I'm talking about the 220V, the 127V went out of use in the late sixties.... I think The Hague was about the last town to have it).
UK is nominally "240V". "Europe" is nominally "220V", although most has now shifted to "230V".
So 127V/220V is right. And "Europe" is standardised "220/380". At least that's still the terminology, although it's now really "230/400". Only the UK is 240/415 nominal.
And another spot of trivia....
Nowadays a lot of equipment is capable of working over a very wide range of voltages. Thingies like hair curlers or traveling irons, or battery chargers, will often work between 100V and 240V without even having to set a switch.
But light bulbs.... we brought a batch of nominally 240V light bulbs back from the UK to France.... and boyo, they lasted
far longer than the nominally 230V bulbs we bought here..... Yet the difference is less than 5%.