by Jeff Kershner | Mar 16, 2023 | Evaluations, Frequently Asked Questions, Safety Tips
Introduction An arc flash study is a crucial part of any electrical safety program. It is required by the National Fire Protection Association (NFPA) 70E standard for assessing the risk of arc flash hazards and determining the appropriate safety measures to protect... by Jeff Kershner | Mar 16, 2023 | Evaluations, Frequently Asked Questions
Arc flash calculations have to start at the source of power. If a facility is powered from a generator then generator characteristics are the starting point. If a facility is powered from a utility, then certain characteristics including “fault current”,... 
by Jeff Kershner | Jan 12, 2023 | Evaluations, Safety Tips
An arc flash evaluation that Rozel performed identified a high arc flash hazard. After analysis, we were able to recommend a simple setting change which ultimately saved the day and likely prevented a great amount of damage. You can see in the one line drawing below... by Jeff Kershner | Mar 29, 2022 | Evaluations, Frequently Asked Questions, Safety Tips
Consider this comparison: Seatbelts used to be optional but are now enforced and regular practice; calculating arc flash values were once impossible but are now saving lives. Once standardized arc flash calculations were put into place in 2002 (IEEE 1584) the... by Brian Hall | Mar 21, 2022 | Evaluations, Safety Tips
Power distribution and other types of transformers can have their internal windings and core submersed in oil. The oil is passed through a radiator mounted to the outside of the transformer ultimately cooling the windings. The oil is also used to insulate the core and... by Jeff Kershner | Dec 23, 2021 | Evaluations, PPE, Safety Tips
There’s a disconnect, or rather an improper connection that workers make between categories and values calculated when using the incident energy method. A worker should not correlate categories with incident energy. A real simple example can be made from...