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Jeff Kershner
Writer
Rozel Founder
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Nov 25, 2024
About
Jeff co-founded Rozel back in 2010 and holds professional engineering licenses in over 40 states. He’s also an NFPA® Certified Electrical Safety Compliance Professional (CESCP). At Guidant, Jeff co-leads the Arc Flash services team and handles various management responsibilities.
Before Rozel, Jeff gained hands-on experience as a Performance Engineer at Nestlé and as an Electrical Engineer at NSK. He earned his BSE in Electrical Engineering from Kansas State University.
When he’s not working, Jeff loves spending time with his family, tackling home projects, and enjoying the Florida sunshine.
Posts (19)
Mar 9, 2026 ∙ 4 min
Discover Hidden Electrical Issues with Infrared (IR) Thermography
There are two ways to operate: you can schedule maintenance, or your equipment will eventually schedule it for you (usually at 2:00 AM on a holiday weekend). Unlike mechanical problems, which can have symptoms like grinding, squeaking, and vibrating before failing, electrical issues often give no visual or audible signs. Equipment can operate at 99% capacity one moment and fail catastrophically the next. Equipment failure and downtime are expensive. A rigorous IR program isn’t just about good...
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Feb 23, 2026 ∙ 3 min
How do Infrared Hot Spots Magically Appear?
“You found a hotspot caused by a loose wire in my electrical equipment? I just tightened that wire! And how did the screw come loose?” Sometimes, an Infrared (IR) Thermography Electrical Safety Inspection report shows “hotspots” in equipment that appears to be working just fine. However, even if a screw is tightened perfectly on day one, there are forces that work to loosen it over time, in very small increments, even despite regular maintenance. Screws in electrical equipment don’t just...
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Nov 3, 2025 ∙ 3 min
Why Expert Oversight Matters in Arc Flash Compliance
NEC 2026 Section 110.16 update series As companies rush to meet the expanded labeling requirements in NEC 2026 Section 110.16 , many electrical contractors ask this question: “Do you handle arc flash calculations in-house, or bring in an expert?” We've heard it time and again: "do we really need an arc flash analysis in (x) scenario?", and this question gives us pause. Many do not realize that “figuring it out” using software or online tools is far from easy . And when it comes to arc flash...
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