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 ...

Electrical equipment is required to be field labeled by the NEC (NFPA 70) and OSHA. This requirement is meant to inform personnel working on energized equipment about ...

If an arc flash hazard is present, the plant assesses the risk and decides on methods to control that risk. Most plants utilize the services of a subject matter expert to perform the arc flash hazard ...

I received a call recently from a large electric utility. A line worker, we'll call him Bill, had been badly burned while performing work near a 69kV piece of equipment. This incident illustrates ...

Also in 2002, the Institute of Electrical and Electronics Engineers (IEEE) issued IEEE Std 1584 IEEE Guide for Performing Arc-Flash Hazard Calculations. This guide was developed to provide techniques ...

In the electrical industry, and the workplace in general, the phrases "arc flash" and "hazard risk analysis" are generating much interest and attention. Many managers and supervisors are asking "why ...

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 ...

“When I looked back and saw that I had no pants on the back of my legs, and literally, the skin was hanging off my arms and my legs, I just knew something horrific had happened.” So begins the story ...

In a typical television transmitter installation 30 years ago — at a time when big power was coming into play (three-phase, 460VAC) — power was fed from a transformer located just outside of the ...