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fffcj Tiny little 'shock' and earth question .

My Engl Fireball 60Watt amp and I are living in Spain . When I touched the front panel , I got a very very small shock on a finger which had recently been cut . Nothing was detectable with any of my other dry fingers .I voltage tested between ground at the wall socket and the amp , ac and dc . Nothing at all . Then , set on AC , I happened to be holding one of the probes , with the other attached to the wall point ground . 2 volts ac registered . I'm stumped . I don't appear to be attached to anything else ! Where is this small voltage coming from ? Do I need to worry about the earthing in this humble Spanish cottage ? Are little 'changes' like this normal , and quite safe ?

Reply to
fffcj
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You form a capacitive divider. There is say .2 picofarad between you and an isolated wire carrying 240 volts. Your capacity is about 20 picofarad, referred to ground.. that means you carry about 1/100 th of the mains voltage, or about 2 volts. At virtually no current. Everything is as it should be. This is also the reason you hear hum from the speaker, when you touch an audio iinput.

Reply to
Sjouke Burry

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