What color is the second grounding conductor in Type MC cable?

In Type MC (Metal Clad) cable, the second grounding conductor is typically designated as yellow. This coloring helps ensure consistency and safety within electrical installations, allowing electricians and inspectors to easily identify the purpose of the different conductors in the cable. Grounding conductors play a crucial role in safety by providing a path for fault current to ground, which helps prevent electrical shock and equipment damage.

Using specific colors for grounding conductors is part of the National Electrical Code (NEC) requirements, which aim to standardize practices across the industry. While other colors may represent different functions such as phase conductors or neutral wires, yellow specifically indicates the second grounding conductor in this type of cable.