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ekstra   ara
 Post subject: HRC label based on Task table
PostPosted: Tue Nov 27, 2012 10:28 am 
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Joined: Mon Apr 14, 2008 7:10 am
Posts: 142
If you get HRC #2 for one equipment based on task table, how do you provide labels accordingly? Do you simply indicate HRC#2 on the label? There is no way that we can get the IE level and flash boundary.


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PostPosted: Tue Nov 27, 2012 12:36 pm 
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Joined: Tue Jul 03, 2007 5:00 pm
Posts: 45
Location: Michigan
NFPA 70E requires the highest HRC to be listed on the label so be careful there is not a task for the equipment that is greater than HRC #2 that you indicate. The 2012 edition of NFPA 70E does have Arc Flash Boundaries included as part of the HRC tables. You can use those. The HRC tables were great when first introduced and are still better than doing nothing but I think they are becoming less relevant with more people performing arc flash calculation studies.


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