This week, Robert Braswell, Executive Director of the American Trucking Associations’ Technology & Maintenance Council (TMC) is joined by Fred Kelley, America’s R&D Director for the Prysmian Group (Prestonite brand), for another in-depth edition of Tech Talk with TMC.

The conversation focuses on electrical wiring, maintenance, and repair standards in today’s trucks, including why proper wire selection matters, how SAE and TMC standards were developed, and what fleets, technicians, and owner-operators need to know to avoid electrical failures and roadside breakdowns—especially during harsh winter conditions.

Robert and Fred break down the differences between battery cables and primary wiring, explain why cross-linked insulation is critical, and discuss recommended SAE wire types such as SGX, SGR, GXL, TXL, and SXL. They a ...