PPE required for 120V circuits (70E 2009)

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zog

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Location
Charlotte, NC
This brings us back to, how do you know you can properly apply the task tables if you haven't had a short circuit analysis performed?

You cant, period. And you need to know the clearing time of the protective device for the available fault current and the lowest current the arc will be self sustaining. I always try to get this point across. Following the liimitations of the tables is even harder now with the tighter restrictions (in the notes) of the 2009 70E.
 
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