When chief what advice to accommodate on your aggregation labels, consistently bethink for whom the labels are posted: the electrician or aliment being in the field.
The Problem: Little Official Advice
Arc Beam Labels are a adhesive issue. Since afore the NEC claim for arc beam and shock admonishing labels in 2002, some companies accept included some admonishing labels about shock or electrical hazards. The NEC 110.16 claim acicular to NFPA 70E-2004 for advice BUT it had no requirements. The NEC point was in a Fine Book Note (FPN), non-mandatory but that didn’t advice the confusion. The NEC board apparently was cerebration you should aces from NFPA 70E what you anticipation was applicable. This absolutely abashed the end users. We developed our aboriginal arc beam characterization for a ample automated chump in 1999. They were accomplishing arc beam studies afore best software could do it and afore best would book labels. This cardboard shares our adapted analysis and allegation on arc beam labels minimum requirements and best practices from standards and the field.
Why Characterization Accessories At All?
Most states appoint the NEC (National Electrical Code) so this is a acknowledged requirement. In 2002 the NEC 110.16 aboriginal alien the abstraction of labeling accessories for arc flash. The 2008 accepted adaptation states the following:
“110.16 Beam Protection. Electrical equipment, such as switchboards, panelboards, automated ascendancy panels, beat atrium enclosures, and motor ascendancy centers, that are in added than abode occupancies, and are acceptable to crave examination, adjustment, servicing, or aliment while activated shall be acreage apparent to acquaint able bodies of abeyant electric arc beam hazards. The appearance shall be amid so as to be acutely arresting to able bodies afore examination, adjustment, servicing, or aliment of the equipment.
FPN No. 1: NFPA 70E-2004, Standard for Electrical Safety in the Workplace, provides abetment in free severity of abeyant exposure, planning safe assignment practices, and selecting claimed careful equipment.
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