Arc Flash Analysis

Arc Flash Hazard Analysis

What is an Arc Flash: An electric arc is a luminous bridge formed in a gap between two electrodes. An Arc Flash occurs during a short circuit condition, or a fault, which passes through this arc gap. The Arc Flash can be initiated through accidental contact, dust build-up, equipment that is underrated for the available short circuit current, or corrosion of equipment and other parts. This disastrous event can expel large amounts of deadly energy as the arc causes an ionization of the air, and temperatures can reach as high as 35,000 degrees Fahrenheit.   That kind of temperature can severely burn human skin in a fraction of a second, even at a significant distance from the event itself. It also poses the risk of igniting any nearby combustible materials.

To identify the specific arc flash hazard at a given piece of equipment at a facility, an arc flash analysis must be performed. NFPA 70E was put in place to ensure that employers and property owners were more aware of the dangerous and lethal effects of arc flashes. Noncompliance can result in substantial fines to employers. The MTA Arc Flash Analysis includes:

  • Short circuit calculations
  • Protective device coordination
  • Arc flash hazard calculations
  • Documentation
  • Unsafe work locations
  • Arc Flash hazard mitigation

Read some of our helpful articles to learn more about Arc Flash studies:


Call MTA for an Arc Flash Analysis in San Diego and Southern California and improve employee safety today!

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