Ever since the 2018 Edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations was published a few months ago, people continue to sift through the many changes that have occurred. One of the more significant changes is the introduction of a correction factor to adjust the calculated incident energy and arc flash boundary to account for the effect of the enclosure size.
When an arc flash occurs, the size of the enclosure can influence the arc flash hazard. The smaller the enclosure, the more concentrated the energy is – focusing it more towards the worker resulting in greater incident energy exposure. The opposite is also true. Larger enclosures have Continue reading