Training
Ken Sellars

Safety Training Does Not Guarantee Safety

Not all electrical safety training programs are equal. As with many things in life, input determines (or, at the very least, predicts) output. Regarding safety training, the content of the training contributes to how workers view electricity and how safely they work. Littlefuse released a Safety Report that details their findings based on a survey given to 575 people who

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Risk Assessment
Hugh Hoagland

New IEEE Paper: Arc Flash Pressure and Door Ejection Measurement

My recent paper has just been published in the IEEE Transactions on Industry Applications.  This paper addresses the hypothesis that arc flash pressure is mostly from temperature rise due to current flow rather than metal expansion so commonly opined. The experiments look at the IEEE 1584 style metal box and a door to hold in the pressure and measurements of

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Burning Questions
Zarheer Jooma

Should I Wait FIVE Years to Review My Arc-flash Hazard Analysis?

We continue our discussion from the last post on performing arc-flash hazard calculations, IEEE 1584 Has Replaced the 125 kVA Exception: What Are the Implications For You?   In December 2018, a comprehensive revision of IEEE(TM)1584:2018 IEEE Guide for Performing Arc-Flash Hazard Calculations was published. The 2002 edition of the standard excluded equipment <240V supplied by a transformer rated less

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red background with burning question
Burning Questions
Hugh Hoagland

Where is Footwear Referenced in NFPA 70E?

Q.  What article in 70E states information on EH and DI footwear? I attended a training on 70E. I understand that 70E recommends EH footwear for dry conditions and DI footwear for wet conditions and working under power lines. A.  There are several references to footwear in 70E: Article 130.7(C)(8) states that DI (dielectric Insulated) footwear shall be used for

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Burning Questions
Ken Sellars

Electrical Utility Q&A: Emergency Response Requirements

Emergency Response at a Utility: When CPR/First Aid is Required We hear often about the need for electrical personnel to have at least a basic level of CPR and First Aid training. In addition, proper use of an Automated External Defibrillator is sometimes the only proven method of saving the life of an electrical shock victim. This article explains the

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COVID
Hugh Hoagland

DuPont Kevlar Cut-Resistant Gloves: Laundering Guide Available

DuPont™ has made available a laundering guide for their Kevlar® cut-resistant apparel. The digest is NEVER use chlorine bleach on Kevlar.  The best method is to use a detergent ONLY. Peroxide bleach and dry cleaning have negligible negative effects on the cut resistance of Kevlar fibers. You can usually launder Kevlar cut-resistant glove, but follow the manufacturer’s recommendations. You can

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