What is the minimum gauge for bonding conductors used with primary protectors?

The minimum gauge for bonding conductors used with primary protectors is 14 AWG. This is established to ensure adequate current-carrying capacity and mechanical strength. In electrical installations, bonding conductors play a critical role in safety by connecting various conductive parts and ensuring that they are at the same electrical potential. Using a conductor that is too small may lead to increased resistance, overheating, and ultimately the risk of failure in the bonding system.

14 AWG is recognized in standards and codes, as it strikes a balance between sufficient thickness for effective bonding and practicality in terms of installation. It is capable of handling the currents associated with surges that could occur due to lightning or other high voltage events, which are common concerns in systems involving primary protectors.

In summary, 14 AWG is the minimum gauge that satisfies safety and performance requirements, ensuring reliable operation of low voltage communication systems.