What system includes a conductor for grounding in addition to current carrying conductors?

The power distribution system is designed to safely and effectively distribute electrical energy through various components, which typically include not just current-carrying conductors, but also conductors dedicated to grounding. The grounding conductors provide a path for fault currents to safely dissipate into the ground, thereby protecting both equipment and personnel from electrical shock and damage.

In the context of power distribution, grounding is critical for the stability and safety of the electrical system. It ensures that in case of a fault, such as a short circuit, the excess current has a safe route to the ground, minimizing the risk of fire or electrical hazards.

Other systems mentioned may focus on specific functionalities or applications, but they do not inherently describe the comprehensive role of grounding conductors alongside current-carrying conductors as explicitly as the power distribution system does. Therefore, the most accurate choice regarding the inclusion of grounding alongside current-carrying conductors is indeed the power distribution system.