A bonding jumper of not less than ___ AWG copper or equivalent shall be connected between the communications grounding electrode and power grounding electrode system where separate electrodes are used.

The requirement for a bonding jumper of not less than 6 AWG copper or equivalent is outlined in the National Electrical Code (NEC) and is important for ensuring that the electrical systems remain safe and reduce the risk of electrical shock or fire. This size is specified to provide a low-impedance path for fault current, allowing protective devices to operate effectively in the event of a fault.

Using a 6 AWG copper bonding jumper ensures that it can handle the necessary current without overheating, thus providing adequate protection. It is sized appropriately to establish a reliable and effective connection between the communications grounding electrode system and the power grounding electrode system when separate electrodes are used. The bonding jumper plays a crucial role in establishing a common ground potential, which is essential for the proper functioning of communication equipment and for the safety of the overall electrical installation.

By adhering to this standard, electricians, engineers, and safety professionals help to create a safer environment by preventing equipment damage and minimizing the risk of injury during electrical faults.