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| Largest Incident Energy https://brainfiller.com/arcflashforum/viewtopic.php?f=33&t=5582 |
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| Author: | Jim Phillips (brainfiller) [ Sun Jun 05, 2022 3:43 pm ] |
| Post subject: | Largest Incident Energy |
As a follow up to the last question regarding the largest Arc Flash Boundary, this question is about the largest Incident Energy. What is the largest calculated incident energy that you have seen? Less than 50 cal/cm2 50 to 100 cal/cal2 100 to 250 cal/cm2 Greater than 250 cal/cm2 |
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| Author: | Jim Phillips (brainfiller) [ Sun Jun 05, 2022 4:20 pm ] |
| Post subject: | Re: Largest Incident Energy |
I saw a label years ago that was a bit above 1000 cal/cm2. Probably a case of "well that's what the software calculated" instead of knowing enough to question the result. |
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| Author: | wbd [ Sat Jun 11, 2022 5:59 am ] |
| Post subject: | Re: Largest Incident Energy |
I reviewed a report done by a firm for a company we were hired to do arc flash training for. They had a value of over 12,000 cal/cm^2 in a 115kV switchyard. I pointed out that this was absurd and that the wrong method had been used and that they had the working distance at 18 inches. |
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