What is the main function of a grounding electrode conductor?

The main function of a grounding electrode conductor is to provide a path for fault current. This conductor connects the grounding electrodes, such as ground rods or plates, to the electrical system's grounding conductors. In the event of a fault, such as a short circuit, this path allows excess electrical current to safely flow to the ground, reducing the likelihood of electrical shock, fire hazards, or damage to electrical equipment. By effectively dissipating fault currents, grounding electrode conductors play a critical role in the overall safety and reliability of an electrical system.

The other choices highlight different roles that electrical components might play but do not pertain specifically to the grounding electrode conductor's primary purpose.