What is a bonding jumper, Main?

A bonding jumper, Main, refers specifically to the connection between the grounded circuit conductor (the neutral) and the equipment grounding conductor. This connection is crucial for maintaining electrical safety and proper function within an electrical system. It ensures that any fault current has a low-resistance path back to the source, helping to prevent electric shock hazards and equipment damage.

In a typical installation, this bonding jumper is installed at the service entrance of the building, facilitating the effective grounding of the electrical system. By connecting these two conductors, it helps in stabilizing the voltage during fault conditions and effectively trips the circuit breakers, enhancing overall system protection.

The other options do not correctly describe the function or purpose of a bonding jumper in the context of electrical installations. For instance, a connection between multiple circuit breakers pertains to system configuration rather than bonding. A conductor that prevents backfeeding in circuits relates more to circuit protection techniques, and a type of fuse indicates a component that protects against overcurrent rather than serving a bonding role. Thus, understanding the specific safety function of a bonding jumper is essential for compliance with electrical codes and standards.