For #6 AWG bonding conductor, what is the length range?

• A. 0-13 ft
• B. 14-20 ft
• C. 21-26 ft
• D. 27-33 ft

Answer: (A)

Bonding conductors must provide a continuous, low-impedance path to the grounding system. Keeping the jumper length short minimizes resistance and inductance, preserving a strong, low-impedance bond between equipment frames, cabinets, and the grounding network.

For a #6 AWG bonding conductor, the recommended length range is 0–13 feet. Staying within this range ensures the bonding path remains effectively low impedance, which is essential for reliably equalizing potentials and safely carrying fault currents.

Choosing longer lengths would add resistance and inductance, weakening the bond and potentially allowing voltage differences between bonded pieces. If longer distances are unavoidable, you’d typically need to adjust with a larger conductor or add bonding points to keep the overall path impedance low, rather than extending the jumper itself beyond the 13-foot limit.