[url="http://submissions.nfpa.org/onlinesub/onsubmain.php"]NFPA ACCEPTS PROPOSALS ONLINE[/url]
Log Number: 586 Section/Paragraph: 110.16 - Proposal for the 2011 NEC
Submitter: Joe Tedesco, Boston, MA
Recommendation: Delete the following words: [color="Red"]"that are in other than dwelling occupancies," [/color]so that the text in the 2011
NEC will read as follows:
110.16 Flash Protection.
Electrical equipment, such as switchboards, panelboards, industrial control panels, meter socket enclosures, and motor
control centers, that are likely to require examination, adjustment, servicing, or maintenance while energized shall be
field marked to warn qualified persons of potential electric arc flash hazards. The marking shall be located so as to be
clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.
Substantiation: I live in a nine story building that is supplied by a 1000 amp, 208Y/120 volt, 3 phase 4 wire service, that
includes electrical switchboards, panelboards, industrial control panels, meter socket enclosures, and motor control
centers, that often require examination, adjustment, servicing, or maintenance while energized.
Each dwelling unit is supplied by a 125 amp feeder, and has a panelboard installed in a clothes closet.
The building was built before the code added the rule in 240.24(D).
Adding a field marking to warn qualified persons of potential electric arc flash hazards where it will be clearly visible to
qualified persons before examination, adjustment, servicing, or maintenance of the equipment will enhance safety.
See this video and audio of the equipment room in my building:
http://www.youtube.com/watch?v=HKjAmaH6xxk#