Where can the connection of the system bonding jumper for a separately derived system be made?

The connection of the system bonding jumper for a separately derived system must be made at a location that ensures the integrity of the grounding system and provides a clear path for fault currents. Making the connection at any single point on the separately derived system is correct because it allows for flexibility in system design while still adhering to safety standards. This ensures that the system is effectively grounded and bonded, reducing the risk of electric shock or fires.

When you bond a separately derived system, you are establishing a connection between the grounded conductor (ground) and the system ground, which helps ensure that all parts of the system have equal potential. This bonding needs to occur in a manner compliant with the National Electrical Code (NEC) and local regulations, but having the flexibility to bond at any single point enables the designer to strategically place the bond in an accessible and effective location.

In contrast, the other options either would not ensure proper bonding or may complicate the system design adherence to codes. Bonding at the source could limit accessibility for maintenance or testing, while bonding at the first outlet might not be suitable for effective fault current management. Additionally, bonding at the main service panel might not align with requirements specific to separately derived systems, which could create issues in maintaining system integrity and safety