Which of the following should NOT be done when bonding to the power ground rod?

When bonding to the power ground rod, loosening the utility power ground rod clamp is not an appropriate action to take. This is because the utility power ground rod is already established to provide a safe and effective grounding system for electrical equipment. Tampering with the clamp could result in a compromised grounding connection, which is critical for safety, electrical function, and preventing electrical hazards.

On the other hand, using a ground rod clamp, ensuring a solid connection, and securing the additional ground rod clamp properly are all essential practices when bonding to the power ground rod. The purpose of using a ground rod clamp is to create a reliable and low-resistance connection between the ground wire and the ground rod. Ensuring a solid connection minimizes resistance in the grounding path, which is vital for effective grounding. Finally, properly securing the ground rod clamp ensures that it will remain tight and functional over time, maintaining a safe grounding system. These practices contribute to the overall safety and reliability of the electrical system in a premises installation.