UK has 240v, that's why their electronics don't work well in the US without an adapter and US electronics get fried in the UK. It's otherwise a really safe system though. Idk the details but (this is unless something goes wrong, it goes without saying that one should never actually try this) the outlets are designed so that you can touch an exposed prong or even stick a screwdriver in there without shocking yourself. They're also less prone to surges because the fuse is located at each plug, which was apparently the workaround to a copper shortage during WWII.
UK has 240v, that's why their electronics don't work well in the US without an adapter and US electronics get fried in the UK. It's otherwise a really safe system though. Idk the details but (this is unless something goes wrong, it goes without saying that one should never actually try this) the outlets are designed so that you can touch an exposed prong or even stick a screwdriver in there without shocking yourself. They're also less prone to surges because the fuse is located at each plug, which was apparently the workaround to a copper shortage during WWII.