110V is regularly used via transformers, generally for safety - 110V doesn't kick you as much as 240V. Perhaps I didn't emphasise that 110V is not grid deliver

110V is regularly used via transformers, generally for safety - 110V doesn't kick you as much as 240V. Perhaps I didn't emphasise that 110V is not grid delivered here. I have a 110V transformer and a 110V rated SDS hammer drill. The idea is that if I manage to hit an electrical cable then I will probably not die, with luck. We also have three phase which I think is normal in the US, for example and is why ethernet over power line is a bit fraught.