What type of jumper is required to connect the grounding terminal of a grounding-type receptacle to a metal enclosure?

The correct answer is that an equipment bonding jumper is required to connect the grounding terminal of a grounding-type receptacle to a metal enclosure. This type of jumper is specifically designed to ensure the safety and effectiveness of the grounding system in electrical installations.

An equipment bonding jumper serves as a redundant path for fault currents and helps maintain the continuity of the grounding system, reducing the risk of electric shock. By connecting the grounding terminal of the receptacle directly to the metal enclosure, the jumper ensures that any stray currents will be directed safely to ground, thereby enhancing the protection of equipment and users.

Understanding this concept is crucial for safe electrical practices. While insulation jumpers are used for different purposes, such as supporting or protecting conductor insulation, they do not fulfill the requirements for grounding connections. Grounding wires serve as a general term for wires that provide a path for fault current but are not specifically categorized as jumpers. Neutral bonding jumpers, on the other hand, relate to the connection of neutral conductors and do not apply to the grounding scenario in question.