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IAEI Magazine | Author: C. M. Wellman
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C. M. Wellman


Performing Arc-flash Hazard Calculations

An arc flash is a potentially very hazardous event, in which the heat energy alone can cause ignition of clothing and extensive severe burns. The other affects of the arc flash can also cause severe injuries. The effects of an arc-flash injury can be life changing and the costs can be staggering. One utility company recorded three serious arc-flash injuries in a three-year period. Costs to date for medical, indemnity, and vocational retraining are $875 k with additional funds in reserve. Another company, a manufacturer, has reported it has experienced an average of 2.2 arc-flash injuries/year over the last ten years.