The bonding conductor or grounding electrode conductor for radio or television equipment may be fabricated from which materials?

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

Answer: (A)

The bonding conductor or grounding electrode conductor for radio or television equipment can be made from any of several conductive materials, as long as it provides a reliable, low-impedance path to ground. Copper is a traditional choice because of its excellent conductivity and corrosion resistance. Aluminum is lighter and cheaper but has higher resistivity and requires proper handling to prevent galvanic corrosion and connections that loosen over time. Copper-clad steel combines the strength of steel with a copper surface, offering good conductivity with added mechanical durability and corrosion resistance. Because all three materials can meet the electrical and mechanical requirements for a grounding path, any of them are permissible.