NFPA 70E Arc flash labeling requirements

I

Isaiah

Senior Member
Location
Baton Rouge
Occupation
Electrical Inspector
I can certainly understand Arc-Flash labeling for a switchgear MCB, but why would you also need a label for the associated switchgear bus? The bus isn’t really an arcing device.


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The rules have to do with the incident energy that will be created if something causes a fault, not with a device that creates an arc.
 
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