The bonding jumper for multiple disconnecting means is located where?

The bonding jumper for multiple disconnecting means is positioned on the supply side of the service disconnect to ensure proper grounding and bonding of the electrical system. This location is critical because it allows for the connection of the separate service disconnects to a common grounding system before the electrical energy is distributed through the various circuits.

By placing the bonding jumper on the supply side, it ensures that all incoming service conductors are properly bonded to the grounding system, thereby providing a path for fault currents to safely return to the ground. This is essential for maintaining safety and preventing the occurrence of potential electrical hazards, such as electric shock or fire, due to differences in potential between the grounding systems.

In contrast, if the bonding jumper were located on the load side of the service disconnect, it would not provide effective grounding for the entire system, since it would only connect the circuits after they have been separated from the ground potential. Grounding electrodes are indeed key components in the grounding system but do not directly relate to the bonding jumper for multiple disconnects in this context. The electrical panel is crucial for circuit distribution but is not the correct location for the bonding jumper as outlined in the question.