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Re: [TowerTalk] Arcfault Breakers

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Arcfault Breakers
From: "Joseph B. Fitzgerald" <jfitzgerald@alum.wpi.edu>
Date: Thu, 16 Mar 2023 22:08:15 +0000
List-post: <mailto:towertalk@contesting.com>
>Would everyone who has seen a fire caused by an arc fault please raise your 
>hand(s). 

Hand raised, I have seen several and I am not even paying that much attention.  
 

I had an arc fault problem in my own house that resulted in a scorched wall 
outlet and adjacent wall, fortunately no fire resulted.    Things could have 
been different had there been any lint build up from the clothes dryer attached 
to the outlet in question.     FWIW, the arcing was likely caused due to a nick 
in the conductor where the electrician stripped the insulation to attach it to 
the outlet.  Decades of thermal cycling at that high resistance point caused 
the copper to crack through and then start arcing.

de KM1P Joe
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