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- Electrical Basics

Calculating Arc Flash Energy Levels

Published Saturday, September 01, 2007

While not a major topic of consideration when designing and maintaining facilities in past years, code-enforcement bodies have become increasingly aware of the danger of arc flash incidents associated with working on live electrical gear. As a result, facility managers and their consulting engineers are paying more attention to arc flash analysis. While the National Electrical Code (NEC) requires only a generic label to warn of the possibility of arc flash danger on all equipment that is subject to arc flash hazards, NFPA's “Standard for Electrical Safety in the Workplace” (NFPA 70E-2004) goes a step further, requiring that, ...

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