W. eWatson
Guest
Sat Feb 27, 2010 7:18 pm
On the web, there's a video of a branch suspended across two hot lines
that is burning. I would have thought the conductivity of wood was so
low that wouldn't happen. Wet wood?
John Fields
Guest
Sat Feb 27, 2010 7:33 pm
On Sat, 27 Feb 2010 09:18:20 -0800, "W. eWatson"
<wolftracks_at_invalid.com> wrote:
Quote:
On the web, there's a video of a branch suspended across two hot lines
that is burning. I would have thought the conductivity of wood was so
low that wouldn't happen. Wet wood?
---
Sure, or damp, or sappy.
Anything that'll allow enough current through it so that the IČR losses
through it will ignite it.
JF
Guest
Sat Feb 27, 2010 10:18 pm
On Sat, 27 Feb 2010 09:18:20 -0800, "W. eWatson"
<wolftracks_at_invalid.com> wrote:
Quote:
On the web, there's a video of a branch suspended across two hot lines
that is burning. I would have thought the conductivity of wood was so
low that wouldn't happen. Wet wood?
A branch that might not be affected by the 240 volt line to your house
would most likely get very hot on a 7500 volt (or higher) distribution
line.
John
