I admit to not having followed all this -- however I know an engineer
who works on building issues for people. Supposedly the most significant
problem is the neutral bonding to ground inside the house. If this is
done in such a way that significant neutral current flows through the
pipes instead of the wiring then there is significantly more 60Hz
magnetic field.
The folks most concerned are those with autistic kids, who seem to be
more sensitive to this.
The typical fix is to isolate (electrically) the pipes inside the house
>from the main (with a piece of plastic pipe).
If you want any more details please send questions to me and I will
forward to him.
As to personal experience, as a teenager I used to work on TV antennas
and found the voltage present at the terminal of a receive antenna on a
roof was surprisingly strong. Typically I couldn't keep my fingers on it
and needed insulation. It is possible this was related to weather
conditions.
Curt
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