What type of conductor is often used for establishing isolated grounds in AC and MC cables?

Insulated conductors are commonly used to establish isolated grounds in alternating current (AC) and metal-clad (MC) cables because they provide the necessary protection and prevent accidental contact with live circuits. The insulation allows the ground conductor to remain isolated from other conductors, thus maintaining safety and reducing the risk of electrical faults.

In the context of electrical installations, consistent adherence to insulation standards is crucial for ensuring that grounding systems function effectively while minimizing hazards. Insulated conductors ensure that the grounding path is reliable and does not inadvertently interfere with other circuits, which could lead to safety issues. This makes them the preferred choice for isolated ground applications, ensuring compliance with code requirements and best practices.

In contrast, bare conductors, while effective for grounding, do not offer the same level of protection as insulated options. Covered conductors may provide some degree of shielding but typically do not allow for the specific isolation required for grounding applications in these types of cables.