Hello again to everyone, This time I have two questions. To begin with, when my grandfather would explain some things to me, he would always include the term "isolated". For example, he would say, "you must isolate the circuit", and I would have somewhat of an idea of what he meant. My question is, in a fully explained way (haha), what does the term "isolated" mean and how do you go about doing it? Also another grounding question that arose this morning (at least morning in America!). Why couldn't one ground the 'hot" side of a circuit to ensure its safety? Thanks a lot!