What is the primary function of the Grounding Electrode Conductor (GEC)?

The primary function of the Grounding Electrode Conductor (GEC) is to provide a path for electrical currents to safely dissipate into the ground, which is crucial for protecting against lightning strikes and electrical surges. When lightning or surge events occur, they can produce high voltages that can damage electrical systems and appliances. The GEC connects the grounding system of a structure to the earth, allowing these excess currents to flow safely away from the building. This is essential for both the safety of the electrical system and the prevention of potential fires or electrocution due to unexpected voltage.

The other options do not align with the primary purpose of the GEC. For example, it does not provide lighting, reduce noise in electrical systems, or control temperature as these are functions outside of grounding and surge protection.