What is a supply-side bonding jumper?

A supply-side bonding jumper is a conductor that is installed on the supply side of a service. This is essential for ensuring that the grounding system is effective and provides a path for fault currents to safely dissipate into the ground. Specifically, the supply-side bonding jumper connects the grounded conductor (neutral) to the grounding electrode system, which helps maintain the integrity of the electrical system by ensuring that all metal parts are bonded together at the service entrance.

This connection plays a critical role in reducing the risk of electrical shock, improving system stability, and ensuring compliance with the National Electrical Code (NEC) regulations. Proper implementation of supply-side bonding jumpers can help prevent dangerous potential differences that could occur if neutral and ground connections are improperly configured.