[AusNOG] Lightning and FTTC - is it really this bad?
glp71s at gmail.com
Fri Jan 22 11:51:42 EST 2021
I wonder if it has anything to do with the old legacy copper that was
previously hooked up to the DPUs, which the NCDs trigger a cutover from.
There could potentially be rather a lot of it there, not necessarily
grounded if the old legacy infrastructure has been partially removed, so an
induced current could be quite substantial...
On Fri, Jan 22, 2021 at 11:44 AM Jrandombob <jrandombob at darkglade.com>
> Yeah, I'd say that's a good bet.
> Aerial lead-ins are always going to be more susceptible to induced
> spikes from nearby lightning than buried cable.
> On Fri, Jan 22, 2021 at 11:30 AM <mike at ozonline.com.au> wrote:
> > On Friday 15th we had 30 FTTC NCDs "fried"
> > in a single 1km2 area due to an electrical storm.
> > No other devices were impacted in the affected households and
> > damage occurred irrespective of whether NCDs were plugged to
> > surge protectors or not.
> > It seems unlikely that lightning hit lead-ins for the
> > affected services.
> > The area has mainly aerial lead-in delivery.
> > Induced power spike?
> > - Michael Bethune
> > Australia On Line
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