Which statement best describes the minimum size requirement for copper bonding conductors for communications systems?

Which statement best describes the minimum size requirement for copper bonding conductors for communications systems?

• A. It must be 14 AWG or larger
• B. It must be 12 AWG or larger
• C. It must be 10 AWG or larger
• D. It must be 8 AWG or larger

Answer: (A)

Bonding for communications systems is all about creating a reliable, low-impedance path that keeps all metallic parts at the same electrical potential. The code sets a practical minimum size for the copper bonding conductor to ensure this path is effective without being unnecessarily large or costly. The smallest copper bonding conductor permitted is 14 AWG, so you can use 14 AWG or a larger size as needed. Larger conductors are allowed if the installation has conditions that would benefit from a lower impedance path, but the baseline requirement remains 14 AWG. This bonding requirement applies specifically to communications equipment and enclosures, and it is separate from the power-system equipment grounding conductor.

Bonding for communications systems is all about creating a reliable, low-impedance path that keeps all metallic parts at the same electrical potential. The code sets a practical minimum size for the copper bonding conductor to ensure this path is effective without being unnecessarily large or costly. The smallest copper bonding conductor permitted is 14 AWG, so you can use 14 AWG or a larger size as needed. Larger conductors are allowed if the installation has conditions that would benefit from a lower impedance path, but the baseline requirement remains 14 AWG. This bonding requirement applies specifically to communications equipment and enclosures, and it is separate from the power-system equipment grounding conductor.