alt.energy.renewable

sno wrote:

> Eeyore wrote:
> > sno wrote:
> > > Eeyore wrote:
> > > > sno wrote:
> > > >
> > > > > Wouldn't the skin effect tend to protect the cable....??
> > > >
> > > > Have you any other jokes you'd like to share ?
> > > >
> > > > Graham
> > >
> > > I do not see why my question was a joke...I would think
> > > the extremely high rise and fall time of a lightning strike
> > > could cause the electrons to flow on the outside of the
> > > conduit (skin effect)
> >
> > And why would that stop a current flowing in a conductor inside it ?
> >
> > > If you are not familiar with the the term you might look here.
> > >
> > > /wiki/Skin_effect
> >
> > Yes, I know what it is.
> >
> > Graham
>
> My thinking was that it would extenuate the current that would be
> induced into the cable...because it would give two alternate
> paths for current flow to ground (inside and outside of the conduit)-
> I would think the only current in the cable would be caused by
> the electromagnetic pulses.

The duration of lightning strikes is too long to be affected by skin effect. If
a lightning strike lasted a microsecond or so you might have a point.

Graham