Rob,
One of the consequences of transmission lines is bird strikes. A pdf dealin=
g with trials of bird strike detector might give you a starting point in th=
at literature:
www.energy.ca.gov/2007publications/CEC-500.../CEC-500-2007-076.PDF
The height of the towers and whether any of them will be illuminated for ai=
rcraft warning substantially affects mortality. A site focussed on free sta=
nding towers and lighting effects of birds may be helpful:
www.towerkill.org
Hissing or buzzing noises and sometimes weak erratic local illumination fro=
m corona discharge is a common observation on transmission lines in the SF =
Bay area. Though the wildlife consequences of this are uninvestigated AFAIK=
, the sound from corona discharge is, not surprisingly, fairly wide band an=
d extends well into the ultrasonic. This seems crudely analogous to a plasm=
a arc speaker. Bat detectors respond substantially around corona discharge =
and industrial diagnostic tools for detecting corona discharge (insulation=
faults,etc.) are ultrasound detectors:
http://www.sdt.be/index.php?page=3Dapplications-uaipm-detection_and_examina=
tion_of_electrical_effects
There are quite a lot of data on the corridor effects mentioned in the prev=
ious response.
Bill R.
> I'm meeting with a community board in two days to help them sketch
> out what we need to learn about the potential environmental impacts
> of a 345 Kv double circuit or 765 Kv electrical transmission line
> proposed to run across our 13,000 acre wildlife reserve in
> Southwestern Wisconsin.
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