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How are you performing incident energy calculations for metal clad switchgear above 15-kV?
Using the 1584 method
Using the Ralph Lee Method
Using the NFPA 70E Task Based Tables
Classifying equipment as "Extreme Danger" (above 40 cal/cm^2)
Other Method
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ekstra   ara
 Post subject: Poll: Metal-enclosed Switchgear above 15-kV
PostPosted: Tue Mar 11, 2014 7:43 am 
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Hello,

I would like to take a small poll or begin a discussion on potential approaches to provide adequate PPE recommendations to personnel exposed to an arc flash hazard on metal-enclosed switchgear above 15-kV.


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PostPosted: Wed Mar 12, 2014 6:33 am 
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Location: Rutland, VT
For industrial type facilities, I use EasyPower and it uses IEEE 1584 up to 15kV. Above 15kV, it uses Ralph Lee method.

For substations and utility overhead lines, I use ArcPro.

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Barry Donovan, P.E.
www.workplacesafetysolutions.com


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PostPosted: Wed Mar 12, 2014 8:41 am 
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Location: Port Huron, Michigan
Didn't answer the poll, as I currently only work up to 2300 kV, with the exception of two 46kV/2.3kV utility transformers, and I don't model the primaries on those transformers.


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PostPosted: Sun Mar 16, 2014 12:33 pm 
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This poll has been moved to the Question of the Week.
Please see [url='http://arcflashforum.brainfiller.com/threads/incident-energy-calculations-for-switchgear-above-15-kv.3242/#post-15031'][the new link][/url]for it.

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Jim Phillips, P.E.
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