What material is typically used in a counterpoise grounding system?

The typical choice for a counterpoise grounding system is 1/0 7 strand soft drawn copper. This material is favored due to its excellent conductivity and corrosion resistance, which are essential properties for effective grounding. The use of soft drawn copper allows for flexibility and ease of installation, as the multiple strands can be maneuvered around obstacles and fitted into various configurations. Additionally, a diameter of 1/0 provides a good balance between conductivity and physical robustness, making it capable of handling the electrical requirements of grounding systems without risk of failure.

Steel cable, while strong, does not offer the same level of conductivity as copper, and aluminum alloy, although lighter and less expensive, may not provide the same durability and long-term reliability in various environmental conditions. Copper wire is a general term that could refer to various gauges and formats, but 1/0 7 strand specifically provides the attributes necessary for optimal performance in grounding applications.