Which type of cable conductor is considered the largest?

The largest type of cable conductor in the context of lightning protection systems is the Class I main conductor. This classification indicates that it has the greatest cross-sectional area and is designed to carry higher electrical currents associated with lightning strikes. The increased size of Class I conductors allows for better conductivity, lower resistance, and enhanced ability to safely dissipate energy without overheating.

In comparison, Class II, Class III, and Class IV conductors are smaller and designed for different capacities and applications. They may serve specific requirements in electrical systems, but none of them match the size or conductivity capabilities of Class I conductors. Understanding the specifications and classifications of these conductors is essential for effectively designing and implementing lightning protection systems.