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This should be my last post on electricity, I know I have posted a lot over the last few days and gotten some great answers, but great answers can also push you towards something new to learn about. Anyways here goes. 1. Lots of homes where I live have an RCD/ safety switch which can detect imbalances between the neutral and live connections. If there is an imbalance (such as when current is going to ground) it will trip the power. In regards to the xbox, it does not have a ground prong on its power cable, so how can an RCD trip the power in the event of a electrical fault (such as water, corrosion and other damage)? And If the TV the xbox is connected too and other devices connected to the TV don't have have ground prongs either and are all connected to the same powerstrip, how does and RCD protect them? 2. I opened up two of my consoles that were water damaged a few years ago. I checked for corrosion. Didn't see much. A little on the underside of the psu (which I don't think I can clean off) and possibly small amounts on the main board. Although there is a risk that I may miss some of it as there is a lot to examine and it may be hidden under things. My main question with this is how bad is corrosion? I know it creates shorts and I do not particular care if these particular two xboxs fail but I do care about how it may effect other consoles connected to the same powerstrip and tv. My tv does not have a ground prong and neither do the consoles. If somone could fill me in on the outcomes of corrosion and if my other consoles are protected by something? like a RCD? Thanks guys once again, and I apologise for going on about things, It is just in my nature to want to be really sure about things.