What is the smallest size wire typically used for a pole butt ground?

The smallest size wire typically used for a pole butt ground is #6 AWG. This wire size is chosen because it provides adequate conductivity and is robust enough to handle the grounding requirements typically associated with pole structures in electrical applications. The primary function of the pole butt ground is to ensure safety by effectively grounding electrical installations, which can help prevent electrical shocks and protect equipment from voltage spikes.

Using a wire that is too small can result in insufficient conductivity and an increased risk of overheating, while larger sizes may not be economically justified for this specific application. Therefore, #6 AWG strikes a balance between safety, effectiveness, and practicality, making it the standard choice in many scenarios involving pole butt grounding.