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Have you ever had a single phase arc flash at 277V or less?
No
Yes - Not bad, just got our attention
Yes - Pretty bad
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 Post subject: Single Phase Arc Flash
PostPosted: Sun Nov 06, 2011 9:29 am 
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1637
Location: Scottsdale, Arizona
IEEE presently does not have a method for calculating single phase arc flash.

Have you ever had a "serious" arc flash involving only one phase at 277V or less?
  • No
  • Yes - not bad just got our attention
  • Yes - pretty bad

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Jim Phillips, P.E.
Brainfiller.com


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PostPosted: Thu Nov 10, 2011 3:07 pm 

Joined: Tue Oct 25, 2011 1:42 pm
Posts: 1
The worst, and only arc flash I have seen was from a dryer plug where one of the phases went to ground while testing it phase to phase. It melted my meter lead, and was a small pop. Pretty small beans


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PostPosted: Thu Nov 10, 2011 6:31 pm 
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Joined: Mon Mar 29, 2010 5:02 am
Posts: 136
A friend of mine was hooking up his new kitchen receptacles hot and forgot to bust the tab off between the two hots.. After he touched the second hot to the plug, his main tripped and he had some black marks on his new back splash..


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