Define bonding in the context of electrical systems.

In the context of electrical systems, bonding specifically refers to the connecting of two or more conductive objects together to ensure electrical continuity and prevent potential differences. This process is crucial because it establishes a low-resistance path for electric current, should a fault occur. By bonding conductive parts, any voltage that might appear on them, such as in the event of a fault, is equalized across those parts. This not only helps to improve safety by reducing shock hazards but also ensures the proper operation of overcurrent protection devices by allowing fault currents to flow effectively.

While options discussing connections or grounding touch on relevant concepts in electrical safety, they do not capture the specific definition of bonding. Connecting equipment to a power supply and grounding devices to earth involve different functions within an electrical system, focusing more on power delivery and safety, rather than the specific intent and function of bonding. The reduction of electrical resistance pertains to circuit efficiency rather than the safety mechanisms provided by bonding. Therefore, the focus on ensuring electrical continuity and mitigating potential differences in the correct choice is what defines bonding in this context.