[C320-list] Lightning Storm Damage

[Irving Grunes]

Guys,
When lightening strikes, it set up a huge expanding and contracting magnetic
field much like the field that is used in generators to create electricity.
There was the right hand rule,where the direction ogf the current causes the
field to rotate around the direction of the current.
This magnetic field is very large and when it expands and contracts,
anything metallic or electronic that is in the proximity of the field
expanding and contracting will get large voltages generated.
The electronics do not have to be on whatever the lightening strikes, but
only has to be in proximity of the large expanding and collapsing field to
get destroyed.
Surge protectors will only protect for the voltage surges that come over the
power lines.  Those devices in the field of the strike gets cooked.

So that even if someone has a lightening protector on top of the mast and a
chain going to ground, the path of the high amperage will set off the field
and cook whatever is close to it.  It will protect a person on the boat, but
its the field that does the damage.

Irv Grunes
#851















On Mon, Jun 16, 2008 at 9:04 PM, Stephen Cox <scox at timmin.com> wrote:

> There's only ways to reduce the possibility of a lightning strike and
> possibly the effects of a nearby one.  The energy involved will just
> totally
> swamp the normal "surge protectors".  If a boat nearby is struck the
> possibility of damage on boats around it are very high.
>
>
> Stephen Cox
> Tegwen C320 1141
>
> >
> > Quentin
> > Not 100% sure in your case, but downunder "surge protector"
> > are available and usually they are built into each individual
> > Marina power supply (one for each slip). Additionally, I have
> > a separate one (touch larger than the size on a computer
> > Mouse) for this purpose as well. We are on 240v supply and
> > our need is greater than yours at 110v.
> >
>
>