No clue what electrical in the Netherlands is supposed to look like but it sounds like it's a floating ground if you're sure you're feeling the same effect. Gra

No clue what electrical in the Netherlands is supposed to look like but it sounds like it's a floating ground if you're sure you're feeling the same effect. Grab a voltmeter and check and if you're seeing 60-70V AC then it's probably EMI filtering. It's completely safe and doesn't present any kind of shock risk other than the fact that it's an indication that the chassis is ungrounded which means you don't have the added safety of shorting out the circuit if a live wire came loose inside and energized the chassis. Personally I miss the days when protective earth was protective earth and you didn't have to worry about engineers doing foolish things like using it for EMI filtering or any sort of current path, even if miniscule. The safest class Y capacitor is the one that doesn't exist.