Arc Flash Warning Labels
Arc Flash Warning Labels
(OP)
1) Do an arc flash warning label without specifying the incident energy and approach boundary meets the National Electrical Code (NEC/NFPA-70) 2008 and 2011?
2) Considering that the NFPA 70E (Standard for Electrical Safety in the Workplace) and OSHA requires incident energy and approach boundaries on the arc flash labels for electrical installations, how is this requirement related with the NEC?
3) What equipment requires Arc Flash Warning Labels?
2) Considering that the NFPA 70E (Standard for Electrical Safety in the Workplace) and OSHA requires incident energy and approach boundaries on the arc flash labels for electrical installations, how is this requirement related with the NEC?
3) What equipment requires Arc Flash Warning Labels?






RE: Arc Flash Warning Labels
2. NEC is a standard for electrical construction dealing with new installations and new equipment. NFPA 70E is a consensus standard covering electrical safety in the workplace for all electrical installations. NEC is adopted by individual states and becomes a legal requirement as a building code. NFPA 70E is not a legal requirement but is used by OSHA as a tool in determining compliance with OSHA requirements for electrical safety.
3. See NFPA 70E-2012 130.5(C). Any equipment over 50 V "likely to require examination, adjustment, servicing, or maintenance while energized....."
RE: Arc Flash Warning Labels
Dave,
Thanks for that statement, it clears up a lot of things for me. Here in Calif. we typically don't adopt the NEC for 3 years, yet I've been hearing grumbling about the 2012 changes to NFPA70E for a month or so lately and I have been tasked with putting together a presentation on it for my company in March. But I was asking why anyone cares yet because I thought it wouldn't be taking effect until around 2015. That now explains it!
I've always ASSumed that since the "NEC" is actually officially the NFPA70, that NFPA70E was by association an extension of it.
"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
— Kilgore Trout (via Kurt Vonnegut)
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: Arc Flash Warning Labels
Venn diagram; after all these years, 3rd grade math finally comes in handy...
"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
— Kilgore Trout (via Kurt Vonnegut)
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: Arc Flash Warning Labels
Just do a little searching on the OSHA "General Duty" clause and you should get an idea on how they enforce it. Arc-flash is a "recognized hazard" based on industry standards such as IEEE 1584 and NFPA 70E.