Utility Short Circuit Data – Different Formats

FREE Download Arc Flash Hazard Calculation Guide

National Electrical Code 110.9 Interrupting Ratings states that: Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at least equal to the current that […]

Arc Flash Study Top 10 FAQs Part #1

How Does Everyone Else Do This? By Jim Phillips 3-Part Series   There are many frequently asked questions about performing an arc flash study (risk assessment) and understanding electrical safety […]

Harmonic Correction Unit?

Harmonic Correction Unit? Would a Harmonic Correction Unit impact the incident energy during an arc flash in an MCC line-up? READ ANSWER

2015 NFPA 70E – 10 Item Check Up

2021 NFPA 70E Training Brainfiller.com

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. […]

Working Distance Mistakes in an Arc Flash Study

The term “working distance” appears 20 times in the 2012 Edition of NFPA 70E, the Standard for Electrical Safety in the Workplace. It appears 12 more times in the annexes. The […]

Predicting the Arc Flash Duration

Determining the arc flash duration is the most important piece of information in predicting its severity. The arc flash duration is usually dependent on how fast an upstream protective device will […]