Champion Flame Shield® Fiberglass Phenolic Conduit System, is a 2-hour fire rated electrical conduit system that holds its own in a number of environments, whether damp or dry, hot or cold. Featuring a high-temperature 2-hour fire rating that meets UL2196 (2 hours @ 1850°F), excellent corrosion resistance, a low coefficient of thermal expansion and low-smoke characteristics, this 2- hour fire rated conduit is the No. 1 choice for surface-mounted 2-hour fire-rated electrical conduit systems for transit and passenger rail systems.