Burns & McDonnell
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April 9, 2026 Mining & Minerals

Proactively Managing Arc-Flash Risks in Mining

An arc flash is one of the most severe and dangerous incidents that can occur in an electrical system. This explosive event — a rapid release of enormous energy caused by a short circuit rapidly expanding through air — can produce temperatures reaching 35,000 degrees Fahrenheit, multiples hotter than the surface of the sun, and vaporize the equipment’s copper bus. The blast also creates a powerful pressure wave, further presenting a significant physical danger to anyone in the vicinity.

For mine operators, safety managers and engineers, understanding and mitigating arc-flash risk is not just a matter of compliance; it's a critical component of protecting people and assets. The impacts of an arc-flash event are twofold: devastating personal injuries and significant financial consequences.

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