Ladies and gents, My electrical knowledge is not very complete and I have always had gaps which I'm slowly hoping to fill in! My current question is regarding Floating Circuits. As far as I understand, a floating circuit is a circuit, isolated from say the mains because it has no physical point of contact between it and a circuit of higher voltage. I.e. it gets its power via a transformer. (please interupt me where I start talking tosh) Now the reason these are considered 'safe' is because in the event of a malfunction you couldn't electrocute yourself because the circuit is running off a lower volatage. Is that right? I've always been told that 'it's the amps that kills you and not the voltage'. But I was also under the impression that stepping down the voltage with a transformer would increase current, so why is it safer? Is it the case that a lower voltage on the isolated circuit means that it doesn't have the electrical potential to flow through your body to ground? Help would be appreciated!!! Many thanks. P.S. my background is mathematical and computing though only high-school physics education.