What happens if aluminum conductors are installed in concrete?

When aluminum conductors are installed in concrete, they can corrode rapidly due to a reaction between the aluminum and the alkaline components found in concrete. This corrosion often occurs because concrete has a high pH level, which can lead to the formation of aluminum hydroxide. Over time, this corrosion compromises the integrity of the conductor, potentially impacting its performance and lifespan.

The presence of moisture can further exacerbate this corrosion process as it facilitates the electrochemical reactions that lead to the degradation of the aluminum material. Understanding this behavior is crucial when designing lightning protection systems, as the longevity and effectiveness of the conductors are paramount to ensuring reliable protection. Thus, choosing materials and installation methods that mitigate corrosion risk is vital.