110.26(a)

[Isaiah]

Does NEC 110.26(a) take into account the worst case scenario for arc flash?


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[Dennis Alwon]

Does NEC 110.26(a) take into account the worst case scenario for arc flash?


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I am not sure what you mean. Those measurements are for the worker to keep them save as possible but obviously if an arc flash happens and you are there without protection, well you are in trouble.

I would assume the cmp has looked at all scenarios and made the best choice they could for protection all around.

 

[Isaiah]

I am not sure what you mean. Those measurements are for the worker to keep them save as possible but obviously if an arc flash happens and you are there without protection, well you are in trouble.

I would assume the cmp has looked at all scenarios and made the best choice they could for protection all around.

I agree with you. I just thought there might be circumstances where the boundaries would change according to incident energy levels.


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[Dale001289]

I agree with you. I just thought there might be circumstances where the boundaries would change according to incident energy levels.


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NFPA 70E defines limited approach boundaries.


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[don_resqcapt19]

Does NEC 110.26(a) take into account the worst case scenario for arc flash?


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It really has nothing to do with that...it only tries to provide enough space to get out of the area when something bad happens.