What is the connection between the grounded circuit conductor and the equipment grounding conductor called?

The connection between the grounded circuit conductor and the equipment grounding conductor is referred to as the main bonding jumper. This connection is crucial in electrical systems as it ensures that there is a solid electrical link between the neutral conductor (grounded circuit conductor) and the grounding conductors.

This bonding helps to prevent voltage differences between these conductors, which could potentially create a hazardous situation. It ensures that under fault conditions, any fault current is directed back to the ground effectively, allowing protective devices, such as circuit breakers, to function correctly and trip in the event of a fault.

The main bonding jumper is specifically required at the service equipment to maintain the integrity of the grounding system. As such, this terminology is key in understanding concepts related to electrical safety and system grounding; it emphasizes the importance of proper connections within an electrical installation to maintain safety and functionality.