What color insulation is used to identify equipment grounding conductors?

The correct answer is green, as this color is specifically designated for identifying equipment grounding conductors. This standardization is important for safety, as it allows individuals working on electrical systems to quickly recognize grounding conductors, which are crucial for preventing electrical shock and protecting equipment from faults. The use of green for ground conductors is consistent across electrical codes and regulations, ensuring uniformity in identification and enhancing overall safety practices within the electrical installation and maintenance environment.