Short Circuit Analysis and Fault Current Calculations

How to Perform an Arc Flash Study – Part 1
Based on the Latest Edition of IEEE 1584

December 21, 2021

How to Perform an Arc Flash Study – Part 1
Based on the Latest Edition of IEEE 1584: What is an arc flash study sometimes known as an arc flash assessment? Performing an arc flash analysis can be complex enough but the latest edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations has taken it…

Plasma – Modify the Arc Rating or Modify the Incident Energy Calculations?

April 20, 2020

Plasma – Modify the Arc Rating or Modify the Incident Energy Calculations? I am frequently asked questions about the application of the 2018 edition of IEEE 1584 – especially electrode configurations and more specifically, about HCB (Horizontal Conductors/Electrodes inside a…

Jims 1974 Grey Book - IEEE 3000 Series Standards

IEEE 3000 Series Standards – Update

February 18, 2020

My 1974 IEEE Gray Book from College – Now part of the 3000 Series of IEEE Standards I have been a fan of the IEEE “Color Books” going all the way back to my Senior Year in college – yep,…

DC Arc Flash Calculations

November 20, 2019

290 MW PV Installation in SW Arizona When the 2018 Edition of IEEE 1584 was published last year, one subject was conspicuously absent – DC arc flash. DC power systems are everywhere and include sources such as rectifiers, photo-voltaic installation,…

Square D Low Voltage AC Power Circuit Breaker DS II

Evolution of Arcing Short Circuit Current Calculations

October 26, 2019

Arc Flash Duration Defined by Clearing Time of Upstream Protective Device One of the main variables that is part of an arc flash study is the arcing short circuit current. However, going back through the evolution of arc flash calculations,…

History of Arcing Short Circuit Calculations – 1980’s to Now

August 21, 2019

History of Arcing Short Circuit Calculations – 1980’s to Now: One of the main variables used for incident energy and arc flash boundary calculations is the arcing short circuit current. How the arcing current is calculated has gone through an evolution beginning back in the 1980’s up through today. The…

2018 IEEE 1584 – Enclosure Size Adjustment Factor

April 17, 2019

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…

2018 IEEE 1584 – 125 kVA Transformer Exception DELETED!

December 19, 2018

125 kVA – Going, going, gone! After much speculation about the fate of the 125 kVA transformer “exception”, the 2018 Edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations has finally been published and made it official.

IEEE 1584 – Changes to the Next Edition

November 19, 2018

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 for the first time there was an internationally recognized standard…

Don’t Automatically Reset a Circuit Breaker that Trips!

October 16, 2018

Don’t Automatically Reset a Circuit Breaker that Trips!: The circuit breaker just tripped. Production is down, alarms are sounding in the background. Panic time. For many, this scenario would mean quickly re-set the circuit breaker and “see what happens.” Not the best idea – the question needs to…

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Technical Articles

How to Perform an Arc Flash Study – Part 1
Based on the Latest Edition of IEEE 1584

Plasma – Modify the Arc Rating or Modify the Incident Energy Calculations?

IEEE 3000 Series Standards – Update

DC Arc Flash Calculations

Evolution of Arcing Short Circuit Current Calculations

History of Arcing Short Circuit Calculations – 1980’s to Now

2018 IEEE 1584 – Enclosure Size Adjustment Factor

2018 IEEE 1584 – 125 kVA Transformer Exception DELETED!

IEEE 1584 – Changes to the Next Edition

Don’t Automatically Reset a Circuit Breaker that Trips!

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