Hi all. I live in Spain, where lack of earthing and other circuit protection for musicians is a real issue (as I am sure it is elsewhere too), especially when playing live when little attention has been paid to such necessities, and where the lack of earthing causes mayhem with the sound, leaving the guitars and mikes dangerously exposed to any electrical faults which might arise. On a recent visit to South America this came to a head for me after a disastrous live gig where I was almost electrocuted, and where the live sound was terrible due to lack of earthing, and I decided to seek help in designing a system for musicians to prevent injury or death. So after some time spent researching on various online forums, I designed a prototype which I was using during my stay in South America, but I never managed to get beyond that point for lack of materials, and I have the same problem here in Spain. The other problem is that I had to use the materials available to me, which were more suitable to the US systems than the European ones, but that is a minor issue as the circuit breakers are probably the same anyway. However the quality and finish of the materials is questionable. So what I could do is describe and photograph what I have put together, in the hope that someone will be able to help me find a way to house it all in a compact professional looking container. Please be aware however that it is in a very crude form at present, although it does what it was intended to do - if water enters any of the wiring one circuit breaker cuts the current, and if there is a short, another circuit breaker kicks in. It is basically the same system currently used in buildings for circuit protection, but adapted for portable applications. Then I have a makeshift earth which connects to the earth lug of the plug adaptor, and this is connected to a metal pipe or tap, or whatever can be found of that nature which runs to ground to provide an earth for the system. This was not always possible, but certainly when it did work it reduced the 50 cycle hum which played havoc with the sound of the audio system and reduced the tingling in the guitar strings enough to be able to play. Originally, I intended incorporating this isolating system into a typical guitarist's floor pedal board, but that did not work out because this system is more than a little unwieldy, although I am still up for that idea. I have never tried to do an instructable, but I think that this is vitally important to musicians, and could certainly save lives, and so far I have seen nothing of this nature on the site and feel that it is crucial that someone provides this information. So......anyone interested? I am basically seeking those of you who are more technically skilled than myself, and with more ideas of how to actually fabricate the sytem. It is really pretty basic - what is important is that it should be light, portable and easy to set up quickly. The wires are a problem, because they need to be sufficiently thick to carry the necessary current rating for the equipment connected to the circuit - basically all the band equipment, or at least a guitar rig. Thanks for your time.