On 30/07/14 09:57, The Other Mike wrote:
On Tue, 29 Jul 2014 18:08:53 +0100, tony sayer wrote:

What lines are higher then the 400 kV grid then?..

None in the UK, there will be an undersea / underground 600kV DC link in the
next couple of years down the West Coast. No perching ostriches allowed.


DC of course would not be an issue on overhead lines.

There would be a small spark as some charge transferred to the
helicopter then that would be it - until it landed of course, then the
process would reverse.