A few years ago, the term “arc flash” crept into our electrical technical vocabulary. Since that time, performing arc flash calculations remains a challenge for many of us. Calculating incident energy ...

The number of arc flash incidents in the United States is greater than many engineers realize since most accidents don't make the daily news. Chicago-based Capelli-Schellpfeffer, Inc. reports that ...

Whether the incident energy of a potential arc flash is calculated using Annex D or engineering software programs, or whether it is determined through use of Table 130.7 (C) (15) (a) Hazard/Risk ...

The Occupational Safety and Health Act of December 29, 1970, states “An Act: To assure safe and healthful working conditions for working men and women …” Section 5 of the Act titled Duties goes on to ...

In the 2012 National Electrical Safety Code, the approach for arc flash below 1,000 V has changed. Now, utilities will have to review arc flash on distribution secondary equipment. The two main ...

Standards and regulations may change, but the danger associated with arc flash hazards remains. Analyzing potential incident energy correctly and understanding what personal protection equipment is ...