Welcome to the Brainfiller Technical Library. This is the place to find technical articles and information developed by Jim Phillips. Everything from Electrical Power Systems, Arc Flash, Electrical Safety, IEEE 1584, National Electrical Code, NFPA 70E and more!
Much of this material is from Jim’s almost four decades of experience in the electrical industry along with his leadership positions in both United States and International Standards organizations.
Electric Current through Tissue and Air Shock and Arc Flash Hazards Figure 1: Absence of voltage tester | Panduit Corp. Basic electrical theory is that the greater the load is,
The final part of this series examines incident energy and arc flash boundary calculations for the 480V panelboard example used in this series. IEEE 1584—IEEE Guide for Performing Arc Flash
The duration of an arc flash is typically defined by how long it takes an upstream overcurrent device to operate and clear the fault. This requires using the device’s time
Time is everything when an arc flash occurs. The longer the duration, the greater the incident energy exposure – which is directly proportional to the duration. The 2018 Edition of
Arcing Fault Current – Effect of Gap, Voltage and Electrode Configuration An arc flash occurs when short circuit current jumps across an air gap between energized conductors. The event is
Performing an arc flash study can be complex enough but the latest edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations has taken it to a whole
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
A common question that I often hear in my NFPA 70E and IEEE 1584 Arc Flash Studies training courses is: “Can simply operating a device such as a fusible switch
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, consideration
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
Jim is the International Chairman of Geneva, Switzerland based International Electro-Technical Commission’s TC 78 for Live Working which includes protective equipment, tools and arc flash protection. He continues to travel the globe typically flying over 150,000 miles a year to work with various U.S. and international standards organizations and speak at many conferences and training events.
Jim and his wife of four decades live in Scottsdale, Arizona and have two children and one grandson.