ARC Flash Warning Requirements NEC Code 110.16

[Cjmccarthy]

Does the factory applied warning on this disconnect conform to NFPA70E and NEC Code 110.16? Also, does a transformer need the label? We have had a lot of discussions about it. In the NEC requirements, it has ANSI Z535.4-2011 for location and design. It is not a big deal to put a separate warning label on, but I really don't want to make the contractor do anything they don't have to.

 

[don_resqcapt19]

Those comply with 110.16(A), but not 110.16(B). Transformers are not on the list of the equipment that is required to be marked,

 

[Cjmccarthy]

Those comply with 110.16(A), but not 110.16(B). Transformers are not on the list of the equipment that is required to be marked,

But "B" wouldn't apply here because it is not over 1200 amps, right?

 

[Fred B]

Generally these labels factory applied are just general warning not an ARC Actual ARC flash warning includes multiple calculations some derived from AFC from POCO. If residential most likely no need for ARC label, if commercial or industrial then most likely is required. NFPA 70E and OSHA will have additional requirements.

 

[don_resqcapt19]

Generally these labels factory applied are just general warning not an ARC Actual ARC flash warning includes multiple calculations some derived from AFC from POCO. If residential most likely no need for ARC label, if commercial or industrial then most likely is required. NFPA 70E and OSHA will have additional requirements.

That is all that is required by 110.16(A).