Generally speaking, which material lasts longer in a lightning protection system?

In a lightning protection system, copper is widely recognized for its longevity and exceptional conductivity. One of the primary reasons copper is preferred is its natural resistance to corrosion, particularly when exposed to outdoor elements. This corrosion resistance ensures that copper components maintain their structural integrity and electrical performance over time, which is critical for a system designed to protect against lightning strikes.

Additionally, copper has excellent electrical conductivity, allowing it to effectively dissipate the enormous electrical energy generated by lightning. This capability reduces the chances of damage both to the lightning protection system itself and to the structures being protected.

Furthermore, while steel and aluminum are also utilized in lightning protection systems, they do not offer the same level of corrosion resistance and durability as copper. Steel can rust if not properly coated, which compromises its effectiveness, while aluminum, while lighter and less expensive, can oxidize and also has lower conductivity compared to copper. Therefore, the longevity and performance of copper make it the superior choice for a lasting and effective lightning protection system.