Hi,
I have discussed on the problem in past days too. And simple solution for the problem is to earth the case/chassis. However, which thing produces such electrically shocking leakage on the chassis? Here, most of the houses' wiring have no earth wire (just have two wire: 'neutral' and 'phase'). So when I stand in wet ground and touch the case, it gives painful shock, like I am touching mains.
If the leakage is from a particular part of SMPS, like through a resistor or capacitor for example and if I grounded the case then current starts to flow through the part to the earth and the part dissipates power. So I guessed the part will be damaged due to over power dissipation, won't it?
I am worrying because if I connected any devices to computer and touched any delicate parts of the device, I will get shock, as I explained before. Because USB cover are electrically connected to chassis too. So I think some part of the device may get explode from that current flow through my body to Earth.
I have discussed on the problem in past days too. And simple solution for the problem is to earth the case/chassis. However, which thing produces such electrically shocking leakage on the chassis? Here, most of the houses' wiring have no earth wire (just have two wire: 'neutral' and 'phase'). So when I stand in wet ground and touch the case, it gives painful shock, like I am touching mains.
If the leakage is from a particular part of SMPS, like through a resistor or capacitor for example and if I grounded the case then current starts to flow through the part to the earth and the part dissipates power. So I guessed the part will be damaged due to over power dissipation, won't it?
I am worrying because if I connected any devices to computer and touched any delicate parts of the device, I will get shock, as I explained before. Because USB cover are electrically connected to chassis too. So I think some part of the device may get explode from that current flow through my body to Earth.
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