What is the designation of the conductor shown at Point II?

The designation of the conductor as a grounded conductor means it is intentionally connected to the ground or to a ground reference point, typically at the service equipment. This connection serves a critical safety function by providing a low-resistance path for fault currents to flow back to the ground, thus activating protective devices like circuit breakers or fuses in the event of a fault.

A grounded conductor, often referred to as the neutral conductor, is essential in electrical systems to provide a return path for current and to ensure that the voltage levels are stable and safe. By maintaining the neutral in proper connection with the ground, it reduces the risk of electric shock and helps to stabilize the electrical system against surges and outages.

Understanding the role and characteristics of a grounded conductor is critical for anyone working in electrical installations, as it helps ensure the compliance with safety codes and standards.