The connection between the grounded conductor and the supply-side bonding jumper or equipment grounding conductor, or both, at a______, is called a “system bonding jumper.”
Right Answer is:
Separately derived system
The connection between the grounded circuit conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system.
The system bonding jumper can be installed in several ways. For example, if a multi-barrel lug is connected to the XO terminal of a transformer, the system bonding jumper, grounding electrode conductor, grounded conductor, and bonding jumper can be connected to that connector. If a multi-barrel lug is connected to the transformer or generator enclosure, it is common to connect the system bonding jumper, grounding electrode conductor, and the bonding jumper or conductor to that connector. The grounded conductor must always be directly connected to the XO terminal. A system bonding jumper is used to connect the equipment grounding conductor(s) or the supply-side bonding jumper to the grounded conductor of a separately derived system either at the source or at the first system disconnecting means. A system bonding jumper is used in a derivative system if the derivative system has a grounded conductor.
Like the main bonding jumper on the service equipment, the system bonding jumper provides the necessary link between the equipment grounding conductor and the system grounded conductor to establish an effective path for the ground-fault current to return to the source.