NFPA70B Updates And Electrical Failure Mode Detection Utilizing Ultrasound Technology

Adrian Messer, SDT Ultrasound Solutions

In this session, Adrian Messer from SDT Ultrasound Solutions delves into the critical updates to NFPA 70B, a standard that has been transformed from a "recommended practice" to a mandatory requirement. This single change, which replaces "recommended" with "shall," makes it a foundational and enforceable guideline for electrical maintenance.

Adrian highlights the crucial role of ultrasound technology in meeting this new standard. He explains how ultrasound allows technicians to "listen before we open anything up," dramatically reducing the risk of arc flash and improving safety. The presentation provides a deep dive into using ultrasound to detect specific electrical failure modes like corona, arcing, and tracking and explains the benefits of new acoustic imaging technology for faster and more efficient inspections. He also clarifies the complementary relationship between ultrasound and infrared technology, emphasizing that a combination of the two is the best way to ensure comprehensive electrical inspection and compliance with the new standard.