Does a non-conductive body extending above the zone of protection require an air terminal?

A non-conductive body extending above the zone of protection does not require an air terminal because it is not a conductive object that can attract lightning. The purpose of an air terminal is to provide a safe path for lightning to follow, directing it into the grounding system and away from the structure or equipment it is meant to protect. Non-conductive materials do not create an electrical path for lightning strikes, and therefore, the installation of an air terminal would be unnecessary and redundant.

In general, the protection system is designed to intercept lightning strikes on conductive structures, ensuring those structures are shielded from potential damage. When dealing with non-conductive components, the principles of lightning protection dictate that they do not inherently pose the same risk and thus do not need an air terminal for protection.