I've descovered that when the earth wire in a domestic
electrical installation is not connected back to the board
(ground) a voltage of between 9-24v is is found to be
present in the earth wire.
When connected at the board there is no voltage - is this
normal and why does it happen?
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Answer Posted / prof. dr. k. manjunath
The correct answer is there is no path for the leakage
current. If domestic power consuming power apparatus earth
connection is connected to the board, the correct ground
connection offers zero resistance to the leakage current.
This is the effect that, you noticed zero volts when
connected to the board.
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