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Re: Carbon Monoxide warnings - keep generators outside 20ft away from doors and windows


From: Jay Hennigan <jay () west net>
Date: Wed, 1 Sep 2021 16:05:59 -0700

On 9/1/21 15:07, Haudy Kazemi via NANOG wrote:
Several articles have mentioned 8 transmission lines were lost to the hurricane (a single big event event). A casual reader might think 8 lines would offer an 8-way level of redundancy.

My WAG is the reality of load vs capacity is more like a N-1 or N-2 redundancy, but that's really just a WAG. It is unclear to me if all 8 lines were damaged by the storm, or if some failed/tripped when loads shifted onto the remaining lines after the first failure occurred (cascading failure).

Does anyone know, or has anyone seen, details?

Several pictures showing massive steel "cat-style" towers on the ground, as well as news reports that eight transmission lines are down.

Also saw a report that they will be isolating the storm area from the grid and bringing in temporary power plant(s), restoring critical load first.

--
Jay Hennigan - jay () west net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV


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