What are N and PE in the electricity?

In the context of electricity, "N" typically refers to the neutral conductor, which is a current-carrying wire that provides a return path for electric current in an AC system. "PE" stands for protective earth, which is a safety feature designed to prevent electric shock by grounding electrical devices and ensuring that any fault current has a safe path to the ground. Together, N and PE play crucial roles in the safe and effective operation of electrical systems.