Carbon fiber itself is non-corrosive and degradation of CFCC core that results in tensile strength reduction during the course of its lifecycle is minimum. The expected lifetime of ACFR^® conductor exceeds that of ACSR.

CFCC uses overlapped polyester yarn wraps (0.05mm) as galvanic protection barrier. Protection performance of CFCC far exceeds the benchmark of the ACSR galvanized steel core. We have provided 20-year field exposure and numerous corrosion tests, and one of the 2000-hours salt fog tests demonstrates adequate protection of the aluminum strands even with the protection layer removed, showing that the polymer matrix resin provides a considerable degree of galvanic protection while ACSR (galvanized steel core) was severely degraded and unserviceable after exposure in the same test condition. The protection system of CFCC^® is well-proven over 30 years of civil engineering applications and over 20 years of field and laboratory experience for the overhead lines application and there is not a single example of corrosion issue associated with the overlapped polyester yarn wraps.