On 10/02/2004 Martin H. Robinson a wrote :
I hope that this question is appropriate for this group. I was advised
by a colleague that many of the group regular members were
well-informed.

I have site that has a medium voltage powerline crossing it.

I am not suggesting it is inappropriate for this group, but if you want
expert advice on this, then repost your question in
alt.engineering.electrical

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.org