Communications grounding shall be not less than ____ AWG copper.

The requirement for communications grounding to be not less than 14 AWG copper aligns with the standards set for grounding systems in communication networks. This specification ensures that the grounding conductors are adequately sized to handle fault currents and provide a path to ground for electrical surges, thus protecting sensitive communication equipment from damage.

Using a 14 AWG copper conductor is considered suitable because it offers sufficient conductivity and strength while remaining flexible enough for installation in various environments. Grounding is crucial for minimizing electromagnetic interference and maintaining the integrity of data transmission, making adherence to this requirement vital for the reliability of communication systems.

Larger gauge numbers like 8, 10, or 12 AWG may also be available, but they typically cater to different grounding needs outside of standard communications grounding requirements. In this context, 14 AWG is the minimum size recommended to ensure effective grounding without unnecessary over-specification for most communication applications.