New NFPA 70E standards for 2012 now require five specific pieces of electrical equipment to
have arc flash labels. They are switchboards, panel boards, industrial control panels, meter socket
enclosures and motor control centers. Aimed at improving electrical safety in commercial facilities,
the new standards focus on electrical equipment requiring maintenance while energized. New arc
flash labels must also include additional details. Each label must now indicate nominal system
voltage, arc flash boundary, and at least one of the following: available incident energy and the
corresponding working distance, minimum arc rating of clothing, required level of PPE or highest
hazard/risk category (HRC) for a piece of equipment.