"Connected to the ground or to a conductive body that extends the ground connection." refers to which term?

The term that refers to "connected to the ground or to a conductive body that extends the ground connection" is grounded. Grounding is a critical aspect of electrical safety, as it provides a path for electric current to flow into the earth in the case of a fault, thus preventing electrical shock and equipment damage.

When a system is grounded, all parts that could become energized are linked to a common ground, ensuring that in the event of a malfunction, the electrical energy is safely dissipated into the ground. This is crucial for the safe operation of electrical systems in residential, commercial, and industrial settings.

In contrast, the other terms do not precisely capture this concept. Bonded refers to the process of joining electrical devices together to ensure a consistent grounding potential among them to reduce the chance of shock hazards. Connected implies a generic link without the specific focus on grounding, and wired pertains more to the physical placement and integration of electrical conductors rather than their safety connection to ground. The clarity of the definition makes "grounded" the accurate choice for this context.