like oldster said US 220v is just 2 110v with 2 hot wires/duel phase . the UK only uses one hot wire or leg single phase. the other issue here is Hertz maybe..
UK info
our 240vac is derived from a star ( Y ) connected transformer secondary with the center point connected earth at the transformer this is known as the neutral
the outer legs give 440 vac and 240 vac between any leg and the center point ( neutral )
now we use a PME system in which at the customer cutout, the neutral is strapped to the local earth with a 16 mm conductor this is to eliminate a neutral that is above earth due to transformer imbalance
so unlike the US you have a center tapped 220 vac transformer that is earthed hence you are only 110 vac above earth , here we are 240 vac above earth
UK info
our 240vac is derived from a star ( Y ) connected transformer secondary with the center point connected earth at the transformer this is known as the neutral
the outer legs give 440 vac and 240 vac between any leg and the center point ( neutral )
now we use a PME system in which at the customer cutout, the neutral is strapped to the local earth with a 16 mm conductor this is to eliminate a neutral that is above earth due to transformer imbalance
so unlike the US you have a center tapped 220 vac transformer that is earthed hence you are only 110 vac above earth , here we are 240 vac above earth