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 Post subject: Different Arc Flash Boundary in ArcPro and IEEE1584
PostPosted: Fri Sep 16, 2022 11:20 pm 

Joined: Wed Nov 01, 2017 6:09 am
Posts: 29
Hello!
I am testing some calculations in ArcPro and IEEE1584.
I use the following inputs in ArcPro:
Voltage: 11kV
Current: 13.3kA
distance: 90cm
Arc gap: 15cm
duration: 0.25s
type: Enclosed, three phase

In ArcPro this gives an incident energy at working distance at 6.2 cal/cm2 and a Arc Flash Boundary at 205 cm. Comparing this with a calculation in IEEE1584 2012 (not the 2018 version) I get about the same energy 5.6 cal/cm2 but the Arc Flash Boundary 403 cm.
Very greatful for comments!


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 Post subject: Re: Different Arc Flash Boundary in ArcPro and IEEE1584
PostPosted: Mon Sep 19, 2022 6:08 am 

Joined: Fri Sep 24, 2021 7:17 am
Posts: 28
Does ArcPro use different bus configurations (horizontal, vertical, open air, etc.)?

Why not compare to IEEE-1548 2018? ..... out with the old and in with the new!!

I assume ArcPro is using the 2018 method, not 2012


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 Post subject: Re: Different Arc Flash Boundary in ArcPro and IEEE1584
PostPosted: Tue Sep 20, 2022 11:06 pm 

Joined: Wed Nov 01, 2017 6:09 am
Posts: 29
Still it is strange that the energy is quite much the same but very different distance. Any other comments on this?


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 Post subject: Re: Different Arc Flash Boundary in ArcPro and IEEE1584
PostPosted: Wed Sep 21, 2022 7:18 am 
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1682
Location: Scottsdale, Arizona
Jensaugust12 wrote:
Still it is strange that the energy is quite much the same but very different distance. Any other comments on this?


They are two different models.

IEEE 1584 equations are empirically derived - conduct many tests, record data, develop equations.

ArcPro does not use the IEEE 1584 2002 or 2018 model. It is independent and from what I understand, ArcPro is a physics based model and I believe it was created quite some time ago. ArcPro is generally used above 15 kV mostly because no other models exist. IEEE 1584 is for use below 15kV.


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 Post subject: Re: Different Arc Flash Boundary in ArcPro and IEEE1584
PostPosted: Wed Sep 21, 2022 7:40 am 
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Joined: Tue Jan 13, 2009 5:00 pm
Posts: 596
Arcpro doesn't use IEEE, and only the latest version considers electrode orientation. [url]https://www.kinectrics.com/Solutions/Pages/ARCPRO.aspx?creative=510930734634&keyword=arc%20flash%20software&matchtype=b&network=g&device=c&keyword=arc%20flash%20software&creative={creative]&gclid=EAIaIQobChMIqu7P_Y2m-gIVh2xvBB1a9QA7EAAYASAAEgIK_PD_BwE[/url]


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