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Face shield required for .21 cal/cm2 cabinets? Please advise~

Question asked by john bultman on Oct 7, 2017
Latest reply on Nov 22, 2017 by Nick Ravetto

NFPA 70E 

Regards to mandatory Face Shield?

We have had arc flash study done at our facility with all electrical panels labelled per 2015 requirements. Most cabinets are under 1.2 cal/cm2, for instance:

 

.21 cal/cm2@18 " arc flash boundary is 7"

 

We are having a debate with one side saying you MUST PER NFPA70E have a face shield to open the cabinet door and to do a voltage diagnostic with a voltmeter.

 

The other side says you do not because we have had arc flash study and incident energy is so low on over 350 of these cabinets that a face shield is optional.

 

I need a specialist to chime in  

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