What is the recommended protective ground for a Delta distribution system?

For a Delta distribution system, the recommended protective ground is a driven rod or screw anchor. This method effectively disperses fault currents into the earth and provides a low-resistance path for electrical faults, which is crucial for safety and performance in electrical systems. Driven rods are typically made of metal and can be installed to significant depths to reach moist soil, which helps ensure a solid grounding connection that meets the necessary grounding standards required for electrical installations.

While grounding straps, grounded wire mesh, and water pipe connections can also be utilized in certain applications, they may not provide the same level of effectiveness in all conditions as a driven rod or screw anchor, particularly in terms of maintaining low-resistance grounding over time. Driven rods are specifically designed for grounding applications and are widely recognized as a best practice for establishing reliable and robust grounding systems in Delta distribution networks.