What is the function of an equipment bonding jumper?

The function of an equipment bonding jumper is to provide a continuous electrical connection between different parts of electrical equipment or systems, ensuring that all metal parts that may become energized are at the same electrical potential. This helps to maintain safety and prevent electric shock hazards.

When portions of the equipment grounding conductor are connected using a bonding jumper, this ensures that any fault current has a low-resistance path back to the source, thereby allowing overcurrent protective devices to operate effectively. This is crucial in reducing the risk of electric shock and fire hazards that can occur if a fault in the equipment creates a potential difference.

The other options present differing functions which do not accurately describe the role of the equipment bonding jumper:

• Connecting the neutral and ground wires is typically a function associated with the service entrance but not specifically with bonding jumpers.

• Providing a conductive path for ground pertains broadly to grounding, which can include equipment grounding but is not specific to bonding.

• Enhancing circuit performance is more related to circuit efficiency rather than the safety and protective function that bonding jumpers serve.

Therefore, the correct choice underscores the importance of ensuring continuity and safety in electrical systems by connecting portions of the equipment grounding conductor.