Grounding electrode conductors in sizes 6 AWG or larger must generally be protected in which scenario?

Grounding electrode conductors that are sized 6 AWG or larger must be protected when they are exposed to physical damage. This requirement ensures the integrity and reliability of the grounding system. If these conductors are left unprotected in areas where they could be hit, scraped, or otherwise compromised, the grounding system may be unable to perform its vital function in providing a low-resistance path to ground during fault conditions.

While it is important to consider installation in various contexts such as dry locations or underground, the key factor here is the potential for physical damage. Conductors that can be subject to impact or abrasion require a safeguard, such as conduit or cable armor, to prevent any disruption to their function. This protection enhances the overall safety and effectiveness of the electrical system by maintaining proper grounding continuity.