What does the gauge refer to in wire sizing?

The gauge refers to the standards used for wire sizing because it indicates the physical dimensions of the wire, specifically its diameter. This measurement is critical in determining how much electrical current a wire can safely carry without overheating, which is essential for the safety and efficiency of an irrigation system's electrical components. Wire size, as designated by its gauge number, affects resistance, which in turn impacts the overall performance of the wiring in the system. Proper gauge selection is crucial for meeting the requirements of an installation in compliance with relevant codes and standards.