Electrical Safety PPE Equipment - Arc Flash
Arc Flash Hazard Analysis
• “NFPA 70E-2004 Table 130.7(C)(9)(a) is a proposed method by OSHA for
establishing PPE Safety Equipment based on their minimum required arc ratings.”
• Employers must provide all available information that relates to the
determination of existing characteristics and conditions.
FR and Arc Rate d Clothing
• FR clothing is defined as clothing that does not melt, ignite, or contribute to
the injury of the wearer.
• Arc rated clothing is required whenever the calculated energy is greater than
• Arc rated clothing must cover the entire body with exception for hands, feet,
and head protection.
• If employees face a single phase, open air exposure 9-12 cal/cm2, a face
shield is required; exposures greater than 13 cal/cm2 require a faceshield +
balaclava or arc rated hood.
• If employees face a three phase exposure 5-8 cal/cm2, a face shield is
required; exposures greater than 9 cal/cm2 require a faceshield + balaclava
or arc rated hood.