2S3: Electrical Preventive Maintenance & Changes to NFPA 70E

Tim Rohrer, President / Founder, Exiscan


Recent and pending changes to the NFPA 70E Standard for Electrical Safety in the Workplace (and CSA Z462) have real implications on your Electrical Preventive Maintenance strategies and practices. Recent changes to the standards make it clear that proper maintenance is the responsibility of the equipment owner. The 2015 revision changed the way that workers and mangers considered maintenance and condition of equipment prior to beginning work. It was also made it clear that improper maintenance could dramatically increase risks to worker safety and may significantly effect PPE needs. The 2018 revision will change the way that we assess and control for risks — a very important change. Are you and your team properly assessing and controlling the risks present during condition monitoring activities?

This presentation will highlight the most important standards changes for people involved in electrical condition monitoring. It will then explore some foundational safety principles that make compliance easier or automatic.


Tim Rohrer is Founder and President of Exiscan LLC — manufacturer of industrial electrical safety products including infrared windows, visual inspection windows and ultrasound ports. Tim is a CMPR (Certified Maintenance & Reliability Professional), and Level 2 Thermographer who earned his BA from Providence College. With over a decade in the predictive maintenance industry, he has written and published dozens technical papers, magazine articles and tutorials, and is a sought-after presenter at electrical and predictive maintenance conferences. He is a member of IEEE Industrial Applications Society, a committee Chair for the IEEE IAS Electrical Safety Committee, and a sub-committee Chair for the IEEE IAS Electrical Safety Workshop. Tim has a passion for electrical safety and is a committee/working group member on several current and emerging IEEE standards, including: ANSI/IEEE 1584 Guide for Performing Arc Flash Hazard Calculations, IEEE 1683 Guide for Improved Safety & Reliability of MCCs, IEEE 1814 Guide for Electrical System Design Techniques to Improve Electrical Safety, ANSI/IEEE C37.20.2 Standard for Metal Clad Switchgear, ANSI/IEEE C37.20.7 Guide for Internal Arcing Tests, and ANSI/IEEE C37.59 Requirements for Conversion of Power Switchgear. Tim is also a non-voting Task Group Member for CSA Z462 Workplace Electrical Safety Standard (Canada), and for NFPA 70E Standard for Electrical Safety in the Workplace.