If there is no disconnecting means or overcurrent device at the load end of the conductors supplied by a separately derived system, where must the system bonding jumper be installed?

In a separately derived system, it is essential to properly bond the system to ensure safety and minimize the risk of electric shock. When there is no disconnecting means or overcurrent protective device at the load end of the conductors, the system bonding jumper must be installed at the source enclosure. This location is critical because it establishes a safe and effective connection to the grounding system right at the source of the electrical supply.

By placing the bonding jumper in the source enclosure, it ensures that any ground fault currents can safely return to the earth or grounding system, thus maintaining the integrity of the grounding system throughout the circuit. This is a crucial aspect of electrical safety, as it prevents potential hazards that could arise from inadequate grounding and bonding, especially when the load does not have its own specified disconnection.

The bonding jumper connects the grounded conductor to the grounding system and establishes a reference point for protection against faults. This setup is mandated by electrical codes to ensure safety and reliability in the electrical distribution system.