For #3 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: (C)

The idea here is that bonding conductors are sized and spaced to keep the impedance of the grounding path within design limits. For a given gauge, the distance between bonded points is specified so the path stays low enough in resistance to reliably carry fault current and maintain equipotential bonding across the site.

With a #3 AWG bonding conductor, the recommended spacing between bonding points falls in the 21-26 ft range. This window reflects the balance between keeping the conductor large enough to carry fault current with low resistance and keeping the physical runs manageable within typical site layouts. If the distance is shorter, the table’s intended bonding scheme isn’t met; if it’s longer, the impedance could rise beyond what the design expects, reducing bond effectiveness.

So, the 21-26 ft range is the appropriate length for #3 AWG bonding conductor.