Re: Lightning - More Probs Found

["alcinababe" <alcinababe@xxxxxxx>]

Where I work (a large College) got hit by lightning a couple of years
ago - or rather the road by the side got hit (we think, judging by the
circle of devestation).  All the telephone, network and alarm cables
buried under the road had an induced voltage on them.  Every building
down the street was affected: ethernet ports (on both computers and
hubs) were blown, telephone sockets were blown, the doctor's surgery's
NHS direct ISDN was blown, all the alarms were blown.  Fun, fun, fun!
Interestingly not a single mains socket or psu was affected!

I don't know how effective the filters are, I suspect not particularly
effective.  I guess it all depends on how much kit you have (we have
too much to afford a filter at every connection) and how frequently
you expect to be hit!  I've worked here 13 years and we've only been
hit the once.

Alcina
=8-)

--- In ukha_d@xxxxxxx, "Keith Doxey" <ukha@d...> wrote:
> Were these unconnected ports or were thay patched to something.
>
> If they had cable connected it could just be induced voltage on the
wiring.
>
> Keith
>
> www.diyha.co.uk
> www.kat5.tv
>
>
> > -----Original Message-----
> > From: Mark McCall [mailto:lists@xxxxxxx...]
> > Sent: 10 August 2003 13:11
> > To: ukha_d@xxxxxxx
> > Subject: [ukha_d] Lightning - More Probs Found
> >
> >
> > I've now discovered that at least 2 ports on my rackmount hub
> > have been
> > killed by the lightning.
> >
> > I can't understand what path the lightning took to do this
though?
> >
> > Anyway, just a reminder to anyone planing their N0 -
> > lightning protection
> > should be a consideration.
> >
> > M.