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We have 230v - not sure I'm inclined to check it for its ability to throw me across the room! I would say that it's just as safe as 110v in normal use, both are going to do you harm if you attempt to rewire the house without knocking the circuit breaker off first. What annoys me is that I have so many devices that have to take the domestic mains power then put it through a transformer (most electronics work like this). How about a 12v or 24v DC ring main for houses that would use one big transformer to provide a stabilised output? Would this have any benefit in terms of saving energy? It just seems daft to me that everything has a seperate transformer rather than having a single unit and a ring main supply. Waste heat from a single transformer could be used to help heat water too.
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