Arc Flash Hazard Warning Labels

The 2021 NFPA 70E defines what should be on each safety label.
 

The 2021 NFPA 70E 130.5(H) states warning labels
must include:

• Nominal system voltage

• Arc flash boundary (determined by data from Arc Flash Risk Assessment)

• And at least one of the following:

  • Available incident energy and the corresponding working distance
    OR (but not both)
    The arc flash PPE category in Table 130.7(C)(15)(a) OR Table 130.7(C)(15)(b) for the equipment

  • Minimum arc rating of clothing

  • Site-specific level of PPE

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