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Jim Phillips (brainfiller)
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Post subject: Arc Flash Studies < 15 kV?  Posted: Sun Aug 08, 2010 3:41 pm |
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1736
Location: Scottsdale, Arizona
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What method do you use for 3 Phase Arc Flash Studies < 15 kV?
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Jim Phillips, P.E.
Brainfiller.com
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jghrist
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Post subject: Posted: Sun Aug 08, 2010 8:10 pm |
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Joined: Wed Jun 04, 2008 9:17 am
Posts: 428
Location: Spartanburg, South Carolina
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I voted IEEE 1584, but it needs to be qualified. We don't use IEEE 1584 for all < 15 kV analyses. For overhead medium voltage distribution (>1 kV), we use ARCPRO software.
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acobb
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Post subject: Posted: Mon Aug 09, 2010 6:41 am |
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Joined: Sun Dec 23, 2007 1:44 pm
Posts: 348
Location: Charlotte, NC
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Same comment as jghrist, but it is considered a single phase event.
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Jim Phillips (brainfiller)
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Post subject: Posted: Mon Aug 09, 2010 7:49 am |
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1736
Location: Scottsdale, Arizona
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I probably could have been more clear about this. I meant for 3 Phase systems.
This is the first of what will likely be a weekly or bi-weekly survey question. It should help everyone see what the "industry norm" is for certain issues. - At least the norm according to the forum users.
Thanks Everyone!
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Jim Phillips, P.E.
Brainfiller.com
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MIEngineer
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Post subject: Posted: Mon Aug 09, 2010 8:01 am |
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Joined: Fri Sep 05, 2008 8:10 am
Posts: 36
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We are using the NFPA 70E tables as a starting point until a full software analysis can be performed.
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jghrist
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Post subject: Posted: Mon Aug 09, 2010 11:26 am |
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Joined: Wed Jun 04, 2008 9:17 am
Posts: 428
Location: Spartanburg, South Carolina
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brainfiller wrote: I probably could have been more clear about this. I meant for 3 Phase systems.
We use ARCPRO for 3Ø overhead systems. We only consider 1Ø faults.
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Jim Phillips (brainfiller)
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Post subject: Posted: Mon Aug 09, 2010 3:52 pm |
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1736
Location: Scottsdale, Arizona
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jghrist wrote: We use ARCPRO for 3Ø overhead systems. We only consider 1Ø faults.
So much for making a quick post when rushing off the airport this morning. Yes, I meant 3 phase arc flash modeling.
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Jim Phillips, P.E.
Brainfiller.com
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arcflash71
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Post subject: Posted: Thu Aug 12, 2010 3:52 pm |
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Joined: Mon Dec 14, 2009 4:24 pm
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BCR_1962
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Post subject: Posted: Fri Aug 13, 2010 8:29 am |
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Joined: Tue Feb 16, 2010 7:59 am
Posts: 21
Location: Minneapolis, MN
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Gentlemen,
Thanks for the feedback.
Jim, this is a great idea. Keep the surveys comming.
Bob Ragsdale P.E.
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Gary B
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Post subject: Posted: Wed Oct 06, 2010 9:56 pm |
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Joined: Thu Oct 18, 2007 7:10 pm
Posts: 262
Location: NW USA
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Our software is based on IEEE 1584 and that is what we use as an industry standard.
It would be interesting if anyone is using NFPA 70E calculations for systems above 600V, I don't believe that is recommended anymore.
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