Which of the following best describes a main bonding jumper's role?

Which of the following best describes a main bonding jumper's role?

• A. Improves circuit performance
• B. Connects grounding and bonding systems
• C. Provides overload protection
• D. Enhances visibility in electrical panels

Answer: (B)

A main bonding jumper serves a critical function in the grounding and bonding of electrical systems. It specifically connects the grounding electrode system, such as ground rods or plates, to the neutral conductor of the service equipment. This connection is essential for establishing a low-impedance path that allows for the proper operation of overcurrent devices and ensures the safety of the electrical system. By connecting the grounding and bonding systems, the main bonding jumper helps to reduce the risk of electric shock, prevent potential differences between conductive surfaces, and ensure that any fault currents have a designated path to ground. This facet is essential for maintaining system integrity and protecting both equipment and personnel from electrical hazards.

A main bonding jumper serves a critical function in the grounding and bonding of electrical systems. It specifically connects the grounding electrode system, such as ground rods or plates, to the neutral conductor of the service equipment. This connection is essential for establishing a low-impedance path that allows for the proper operation of overcurrent devices and ensures the safety of the electrical system.

By connecting the grounding and bonding systems, the main bonding jumper helps to reduce the risk of electric shock, prevent potential differences between conductive surfaces, and ensure that any fault currents have a designated path to ground. This facet is essential for maintaining system integrity and protecting both equipment and personnel from electrical hazards.