Tag: arc flash calculations

Evaluation of Onset to Second Degree Burn Energy in Arc Flash

Our interest in determining accurate onset to second degree burn energy and its significance in computing the arc flash boundary is focused on the prevention of injury to the skin […]

Arc Flash Boundary – Calculated, Larger, Something Else?

It has been a while since a question of the week was asked about the Arc Flash Boundary. This is the distance from a prospective arc flash where the incident […]

2015 NFPA 70E – 10 Item Check Up

With the 2015 Edition of NFPA 70E being published and all of the changes that it brings, it is time to review your arc flash study, labels and overall practices. […]

Arc Flash Hazard Calculation Studies

In the earlier years of NFPA 70E and the emergence of arc flash protection requirements, many people would use the NFPA 70E Hazard/Risk Tables to determine what arc rated PPE […]

IEEE 1584 – 125 kVA Transformer / Less than 240 Volts Exception

One sentence in the IEEE 1584 Standard, IEEE Guide for Performing Arc-Flash Hazard Calculations, frequently has people scratching their heads: Equipment below 240V need not be considered unless it involves […]

How to Perform an Arc Flash Calculation Study

This article by Jim Phillips provides an overview of how to perform an arc flash study.  It was originally presented at the 2010 NETA Conference.  InterNational Electrical Testing Association. Arc […]