It sounds to me like you have grounding issue. One easy way you can make a good ground, is to connect a wire to your plumbing (this assumes you have metal plumbing that goes underground, or is somehow grounded. You might try using that as a ground for a power strip, and just use that power strip. You of course would need to very careful to not short anything that might cause you injury.
If you happen to have a long metal rod, you could hammer it into the ground to get a good ground, its kind of extreme, but it may suit your circumstances.
We use 120 here, and they have a tester that costs a few bucks, less than 10 I think, and you just plug it in the wall socket, and it tells you if things are wired properly. Its a fairly common tool, you may know someone that has one that you can borrow.