What is the minimum pole ground size for distribution systems?

The minimum pole ground size for distribution systems is typically #6 solid copper. This standard is established to ensure adequate grounding for safety and to minimize the risk of ground potential rise during fault conditions. A #6 solid copper ground provides sufficient conductivity to safely dissipate fault currents and helps in protecting personnel and equipment from surges or lightning strikes.

Using a ground that is too small could lead to inefficient grounding, increasing the risk of electrical shock to workers and public safety issues. In contrast, larger sizes, such as #4 solid copper, while offering even better conductivity, are generally not necessary for the minimum requirements dictated by electrical codes for typical distribution systems.