wrote in message
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Yes. The pulses from the earth rod can feed back into earth pegs that are
being
used by domestic switchboards and telephone lines - this would lead to
your
radio clicking, your stereo, your telephone, possibly disrupt your
internet
connection.

I "buy" that. The "earthing" system is only supposed to "see" fault
currents. In "normal" circumstances, no current flows in you grounding
system.


That all depends upon how the utility has connected the primary of the
distribution transformer. In the US, it's quite common for on connection on
the transformer primary to be connected to a grounded neutral. If that's
the case, several amps will flow through the ground connection under normal
circumstances.