Is the grounding conductor in a cable assembly required to be insulated for cord and plug connected equipment?

The grounding conductor in a cable assembly for cord and plug connected equipment is not required to be insulated. This is based on electrical codes and safety standards, which typically state that the grounding conductor can be uninsulated. The purpose of the grounding conductor is to provide a safe path for electricity to return to the ground in the event of a fault, thereby protecting both the equipment and the user from electric shock.

By having an uninsulated grounding conductor, it allows for a direct connection to the ground, making it more effective at performing its protective function. In many situations, an uninsulated grounding conductor is sufficient and meets regulatory requirements.

It's also important to note that while the grounding conductor does not have to be insulated, the installation must still comply with local electrical codes and safety standards that may have specific requirements regarding grounding conductors in different contexts. Therefore, understanding that the grounding conductor can operate effectively without insulation is key to safely connecting equipment.