Jim Phillips

2020 NFPA Update The Word of the day: Triennial, tri·en·ni·al /trī 'enē'l/ adjective, happening every three years. Or in the case of NFPA 70E, it means: It’s time again to get ready for the 2021 edition. This article focuses...

Although not an official rule, the “two-second rule” for assumed arc durations originated with the 2002 edition of IEEE 1584—IEEE Guide for Performing Arc-Flash Hazard Calculations. It is also in the 2018 edition of the...

Selecting arc-rated clothing and personal protective equipment for protection from an arc flash hazard can be a confusing task. NFPA 70E lists two different PPE selection methods that can be used as part of an arc flash risk...

Seven decades ago, Edward, an American aerospace engineer, was working on a special Air Force project involving a rocket sled. The sled was hooked up to a series of sensors to measure the G-forces it experienced when hurtling...

I am often asked the question: “Can operating a device such as a fusible switch or circuit breaker cause an arc flash?” The exact answer is that it depends. Learning the hard way A client of a friend in Arizona found out the...

Continuing the topic of major changes from part 1 to the 2018 Edition of IEEE 1584 - IEEE Guide for Performing Arc Flash Hazard Calculations, this article explores the effect new electrode configurations have on the...

Since the second edition of IEEE 1584—IEEE Guide for Performing Arc Flash Hazard Calculations was published in 2018, many questions concerning the changes and additions have arisen. In particular, many people have wondered...

After last month, we continue to explore the many changes in the 2018 edition of IEEE 1584, Guide for Performing Arc-Flash Hazard Calculations. When calculating the incident energy and arc flash boundary as part of an arc...

This article begins a series in which I dive deep into the details of the newly published 2018 Edition of IEEE 1584—IEEE Guide for performing Arc-Flash Hazard Calculations. This standard is used globally for calculating the...

The arc flash hazard should be an integral part of any electrical safety training program. NFPA 70E, IEEE 1584 and several other standards address this hazard in terms of incident energy with the severity normally quantified...

An old Grateful Dead lyric sums up the last 16 years of developing the next edition of IEEE 1584, IEEE Guide for Performing Arc-Flash Hazard Calculations: “What a long, strange trip it’s been.” Truer words have never been...

Mention arc flash and thoughts often turn toward extreme heat, burn injury and arc-rated clothing and personal protective equipment (PPE). However, an arc flash has nonthermal hazards as well. Intense light The word “flash”...