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Vica1ME
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Post subject: Fault Current  Posted: Tue Apr 14, 2015 9:18 am |
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Joined: Tue Feb 17, 2009 11:04 am
Posts: 38
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I'm wondering if there's any data available that indicates the necessary available fault current, on a 277V system, to blow a hole through the sheathing of a MC cable (#12 awg, 3 conductor).
Assume worst-case - a bolted fault either between phase/ground or phase/sheathing.
If I know that necessary available fault current, I could then conduct a fault current analysis for my particular situation to determine if there's even sufficient current for that to hypothetically occur.
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PaulEngr
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Post subject: Re: Fault Current Posted: Wed Apr 15, 2015 7:52 pm |
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Joined: Tue Oct 26, 2010 9:08 am
Posts: 2178
Location: North Carolina
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There are formulas for metal damage but gas pressure will open it up before it melts through.
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