Which of the following can be used to protect a Grounding Electrode Conductor (GEC) from physical damage?

The use of rigid metal conduit (RMC) and electrical metallic tubing (EMT) as protective measures for a Grounding Electrode Conductor (GEC) is rooted in their ability to provide robust physical protection against damage. RMC, being made of heavy-duty metal, offers high strength and durability, making it particularly effective in environments where external forces could potentially crush or damage the conductor. Similarly, EMT, while lighter than RMC, still provides a good level of protection, and is often easier to handle and install.

Both RMC and EMT fulfill the National Electrical Code (NEC) requirements for protecting conductors, particularly in locations where they may be exposed to physical damage. The code acknowledges these conduits as acceptable means of safeguarding conductors like the GEC, which plays a critical role in ensuring the safety and functionality of electrical systems.

The other options—Schedule 40 PVC and using only one of RMC or EMT—do not offer the same level of mechanical protection as RMC and EMT combined. PVC does provide some level of environmental protection but is generally not classified as adequate for physical protection in this context. Using only one type of conduit might limit the effectiveness or applicability of the protection provided, making the combined option of R