Which conductor is not included in the grounding and bonding scheme for a grounded system?

The correct answer identifies the "System Bonding Jumper" as the conductor not included in the grounding and bonding scheme for a grounded system. In grounding and bonding, specific conductors serve distinct purposes.

The grounded conductor is vital as it carries current under normal conditions, serving as a return path for electrical currents. The equipment grounding conductor provides a path for fault current, ensuring that all exposed metal parts are grounded to prevent shock hazards. The grounding electrode conductor connects the grounding system to the earth, facilitating the dissipation of electrical energy.

In contrast, the system bonding jumper is not part of the grounding system's main conductors; rather, it is utilized to connect the grounded conductor to the grounding system's electrodes. Its primary function is to ensure effective bonding between different grounding systems but it does not serve to ground the electrical system itself. Thus, it is excluded from the grounding and bonding scheme as the focus remains on safety and fault current paths rather than bond connections.