What will occur upon the installation of protective grounds at the worksite?

The installation of protective grounds at the worksite is designed to ensure the safety of personnel and to protect equipment by providing a safe path for fault currents. One of the primary outcomes of grounding is that it can indeed create a second current loop, which allows fault current to safely flow through the ground conductor back to the ground source, rather than through human bodies or sensitive equipment.

When protective grounds are installed, they connect the equipment or structure to the ground, facilitating the dissipation of electrical energy from any potential faults. This second current loop helps to ensure that if there is a fault, the current has a controlled path to follow, enhancing the protection of workers and minimizing the risk of electric shock.

The other options do not accurately reflect the outcomes associated with installing protective grounds. For instance, while residual voltage might be a concern in some contexts, the act of grounding typically mitigates that by providing a stable reference point. Similarly, grounding does not leave no change occurring, nor does it primarily aim to decrease induced voltage, as its main function is to ensure safety by providing low-resistance paths for fault currents.