What purpose do equipment grounds serve in electrical systems?

Equipment grounds play a critical role in electrical systems by connecting all noncurrent-carrying metal parts to ground. This grounding is essential for safety, as it helps to ensure that any stray electrical current is directed safely into the ground rather than posing a shock hazard to individuals handling the equipment. By grounding noncurrent-carrying metal parts, potential differences are minimized, reducing the risk of electrical faults leading to accidents or equipment damage.

Furthermore, grounding can help to prevent equipment from becoming energized due to faults, ensuring that metal enclosures and frames remain at ground potential. This is particularly important in reducing the risk of electric shock in environments where people may come into contact with electrical equipment.