Electrode Configuration and 2018 IEEE 1584

The most frequently asked question that I receive regarding the 2018 edition of IEEE 1584 is: “How do I determine the electrode configuration?”  The 2002 edition was based on arc […]

IEEE 1584 – Changes to the Next Edition

It has been sixteen long years since IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations was first published in 2002.  This standard was highly celebrated back then because […]

Zero-Sequence Impedance and Incident Energy

A question that I am often asked either on-line or in one of my arc flash training classes is in regards to incident energy calculations and line-ground short circuit current: […]

IEC 61482-2 Second Edition Just Released!

As the International Chair of IEC TC78 Live Working Committee, I am excited to announce the recent publication of the second edition of IEC Standard 61482-2 Live working – Protective […]

IEEE 1584 Status Update

I have been receiving many questions lately about the status of the next edition of the standard: IEEE 1584 – IEEE Guide for Arc-Flash Hazard Calculations.  As Vice-Chair of the […]

IEEE and IEC Standards Update

By Jim Phillips March has been a busy month for me with Standards Committee work.  I just returned home from three weeks of travel that included IEEE Standards meetings in […]

Global Use of IEEE 1584

Earth at Night

IEEE 1584 – It’s a Small World The world’s electrical systems do not discriminate when it comes to electrical safety.  Electric shock, electrocution and arc flash hazards can occur anywhere […]

IEC TC 78 Live Working Standards

By Jim Phillips, P.E.International Chairman IEC TC 78 As the International Chairman of IEC TC 78, a frequent question that I receive is “What is IEC TC 78?” IEC is […]

The 2017 NEC and Arc Flash

By Jim Phillips The 2017 National Electrical Code (NEC) contains several changes regarding arc flash: 110.16(B) Arc-Flash Hazard Warning of Service Equipment 240.87 Arc Energy Reduction (Circuit Breakers) 240.67 Arc […]

Keeping Skills Current with FREE Training

Published: May 2017 By Jim Phillips Part 2 of 2 Part Series There is an endless list of reasons for keeping your skills and knowledge up-to-date in the electrical industry. These days […]

Keeping Skills Current on a Limited Budget

2-Part Series Published: May 2017 By Jim Phillips Part #1 of a 2 Part Series: What if you had been stranded on a deserted island for the past five years? By the […]

What Could Go Wrong?

Creating An Electrically Safe Work Condition Published: April 2017 By: Jim Phillips   “Kill the Circuit.” This phrase is a colorful way of saying, “De-energize the Circuit.” Easy enough — just […]

Arc Flash Study Top 10 FAQs Part #3

How Does Everyone Else Do This? By Jim Phillips 3-Part Series   ARC FLASH LABELS What do you list on an arc flash label when 
the prospective incident energy is […]

Arc Flash Study Top 10 FAQs Part #2

How Does Everyone Else Do This? By Jim Phillips 3-Part Series   ELECTRICAL SAFETY PRACTICES Does your company or client permit energized work where the incident energy is greater than […]

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 […]

Forensic Electrical Engineering Blog #3

Past – Present – Future 3-Blog Series By Jim Phillips, P.E.   Blog #3: Evolution in Forensic Electrical Engineering There has been much advancement in the field of forensic electrical […]

Forensic Electrical Engineering Blog #2

Forensic Electrical Engineering Past – Present – Future 3-Blog Series By Jim Phillips, P.E.   History of Forensic Electrical Engineering Some historical articles suggest the field of electrical investigations began […]

Forensic Electrical Engineering Blog #1

Past – Present – Future 3-Blog Series By Jim Phillips, P.E.   Blog #1: What is Forensic Electrical Engineering? Welcome to my 3-part blog series about the Past, Present and […]

Electrical Safety Training: It Will Save Your Life!

Performing electrical work without being properly trained can be deadly. I have seen this hold true during numerous investigations.

Many companies proactively provide employee training and refresher courses at least every 3-years. Some companies use shorter intervals for refresher training. However, for others, training is not thorough or a low priority. Some simply just want to check training off their to-do lists without much regard to safety for self or employees. In the end, does it matter?

NFPA 70E – Qualified Workers

2021 NFPA 70E

“Raise your right hand”  Pretty intimidating words – especially if they are said in a court room and the trial is about an injury or death.  –  and you are […]

Global Use of IEEE 1584

The surface area of the earth is approximately 197 million square miles, and IEEE 1584—IEEE Guide for Performing Arc-Flash Hazard Calculations has been covering more of it every day since […]

IEEE 1584 Revision Update – 201X Edition

IEEE 1584 – Where It All Began – 2002 A lot has happened since 2002 when IEEE 1584 – IEEE Guide for Arc-Flash Hazard Calculations was first published. The development […]

Happy August 11! (and call before you dig)

Today is a special day.  August 11 – Also known as 8 11 (unless you use the format day/month) What is so special about 811?  8-1-1 is the telephone number that […]

Arc Flash Labels – Simplified!

“What do you mean we need to relabel the electrical equipment? Didn’t we just do this a few years ago?” This is a pretty common response when addressing the requirements […]

Wind and Solar Electrical Safety

Wind and Solar Electrical Safety – Rising to the Occasion – A few months ago I was driving home from the Los Angeles area and suddenly found myself surrounded by […]

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 […]

How to Perform an Arc Flash Study

What started as a slow drip a decade ago has turned into something more like a tidal wave. I’m not talking about a leaky faucet or a failing dam; I […]

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 […]

Arc Blast and 40 calories/centimeter squared

You look at the arc flash warning label and scratch your head. Danger! No PPE Category Found. No personal protective equipment (PPE) category? Now what? This type of language is […]

Coordination and NEC 240.87

NEC 240.87 has addressed a potentially hazardous situation beginning with the 2011 edition. When selective coordination is critical, e.g., minimizing the extent of an outage, a common design practice is to use […]

IEEE 1584 Two Second Rule

A lot can happen in two seconds. What may seem like the blink of an eye can feel like an eternity, especially during an arc flash. When calculating the incident […]

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 […]

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 […]

Arc Flash Warning Labels

Read the label? Use as directed? It sounds like I’m reading a prescription bottle. However, the warning label produced from an arc flash calculation study contains more than just the […]

Behind the Scenes – Ethanol Production

Recently, I had the opportunity to go behind the scenes of an ethanol production facility and see that power distribution system as well as see how it all works.  Electricity requirements […]

Arc Flash – Unplugged

Arc Flash – Dynamite, gasoline, gunpowder and electricity: What do these have in common? Each one can explode. Something as simple as the slip of a screwdriver can cause the […]

Dress for Success – PPE Selection

NFPA 70E has given a whole new meaning to the phrase “dress for success.” Correct PPE selection can make the difference if the very rare but potentially deadly arc-flash occurs.  This […]

NEC and Hazardous Locations

The NEC defines a “Hazardous Location” as a location “where fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids, combustible dust, or ignitable fibers or […]

Grounding Power Distribution Systems

The NEC contains specific articles that dictate when you shall ground, when you shall not ground, and when you are permitted – but not required – to ground. These code […]

OSHA, NEC, NFPA – Pieces of the Puzzle

The next time you are near the bulletin board at work, look for the poster that has the words “It’s the Law” and “OSHA” on it. It has probably been […]