While arc flash is an increasingly well-known phenomena, workers are still suffering injuries on a regular basis. In June 2019, OSHA cited a metal smelting company for electrical hazards after an arc flash caused three workers to suffer severe burns at the ASARCO facility in Hayden, Arizona. The company faces $278,456 in penalties for two willful violations and one serious violation.1
OSHA inspectors determined the arc flash occurred after the insertion of a breaker into a 4,160-volt switchgear. OSHA cited the company for its failure to provide a pre-job briefing before work began on the energized switchgear, render the electrical breaker inoperable before work began, and ensure the injured employees had arc-flash protective clothing.