Why America Still Uses 120V — While Britain Uses 230V

0:00 Why British kettles boil faster 1:12 Edison and the first public power stations 3:17 The AC victory and Britain’s route to the National Grid 8:18 Ring circuits, fused plugs and kettle power 10:22 Why America kept 120 volts 13:30 Television surges and Dinorwig Power Station 15:59 Why construction sites use 110 volts 18:42 Voltage, adaptors and travelling between Britain and America Why does a British kettle boil so much faster than an American one? I trace the answer back to Thomas Edison, early power systems, and the voltage decisions that still shape everyday life. I explain how alternating current won, why America kept its lower household voltage, how Britain built the National Grid, and why the fused British plug and ring circuit made powerful kettles possible. I also look at television power surges, Dinorwig Power Station, safer 110-volt construction sites, and what travellers need to know about plug adaptors, voltage, and transformers.