Got a weird situation in my house. Sorry for the horrible "hand drawing" below and also for probably not using the correct terms (i'm not an electrician).
Here's one of the multiple circuits in my house: there's a circuit breaker (just a regular one that breaks on overcurrent, not the differential kind), then wires leaving through a long (5-10 meters), flexible PVC tube to another part of the house, through a wall socket and to an appliance (washing machine, let's say).
The question is: if the PE (protective earth) conductor - yellow in my drawing - is disconnected from the ground (?) at the distribution board, how normal is it to see a voltage between the points marked "Voltage here?" in the drawing (when there's also voltage on the live wire)? I've got multiple such circuits in my house and, for some, if you touch the disconnected PE conductor, you can feel a pinch in your fingers. Contact voltage detector also lights up slightly, and using a multimeter can show even ~60V in high impedance mode, or a much lower value in low impedance.
So, could this be ghost voltage (and therefore not a more serious problem)?
Otherwise, this could indicate a defective appliance (what if this phenomenon occurs with the appliance plugged in and disappears without?) ? Or an insulation fault between the line, neutral and PE conductors (this happened a few times before, because of probably broken conductor insulation and moisture in the PVC tube - from when the house was built)?