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 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 […]
Utility Short Circuit Data – Different Formats
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 #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 #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 […]
IEEE 1584.1-2013
Question: Hello, good afternoon. Does the standard contain new information to consider for arc flash analysis? Thank you Answer: No because we’re still on the 2002 edition. The new […]
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 […]
Low Fault Current on Utility System
Here is the situation: It is a municipal system, very rural, and has long single phase runs with low fault current. For example: 2400 delta single phase lateral ends up […]
IEEE 1584 and Overdutied Breakers
I guess this directed at IEEE 1584 Committee members (Jim) and I know you can’t say too much but is overdutied breakers/equipment going to addressed in the new IEEE 1584? […]
Application range of methods in IEEE1584
Hello everyone, The application range for the empirical method is clearly defined : 208V to 15kV and a bolted fault current between 700A and 106kA. But for the theoretical method, […]
Have you ever read IEEE 1584?
Just Curious – Have you ever read IEEE 1584 – IEEE Guide for Performing Arc Flash Hazard Calculations? -All of it -Some of it -No Click to ANSWER.
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 […]
Specifying Arc Flash Studies and IEEE 1584.1
An arc flash study can be a bit complicated if you are new to this field. Knowing where to begin, what to include, how far to go, how to use […]
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 […]
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 […]
Using Correct Electric Utility Data for an Arc Flash Study
One of the first steps in performing an arc flash calculation study is to request short-circuit data from the electric utility company. This kind of request is pretty routine, and […]
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 […]
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 […]
Simplifying Arc Flash Studies – Select the Arc Rating First
Begin at the End – What Answer Would You like to Have? Simplifying the arc flash study – Would you like to know a little secret about how to simplify an […]
