The bonding conductor or grounding electrode conductor for radio or television equipment may be composed of which materials?

• A. Copper
• B. Any of the above
• C. Aluminum
• D. Copper-Clad Steel

Answer: (B)

The main idea is that grounding and bonding conductors for radio or TV equipment can be made from several approved metals, not just copper. The NEC allows copper, aluminum, or copper-clad steel for these conductors, as long as the size and connections comply with the code. Each material has its own practical trade-offs: copper is highly conductive and easy to terminate; aluminum is lighter and cheaper but typically requires a larger size to carry the same current; copper-clad steel offers good strength and corrosion resistance with adequate conductivity. The key is that all three are permitted options when the conductor is appropriately sized for the grounding path. Therefore, any of these materials can be used for the bonding conductor or grounding electrode conductor in radio or television setups.