What is the purpose of applying personal protective grounds?

Applying personal protective grounds is primarily done to prevent electrical shock. When work is being performed on electrical equipment or conductors, there can still be a potential for unexpected energization or fault conditions. By placing protective grounds, the work environment becomes safer, as these grounds create a low-resistance path for any possible electrical fault current to flow to the earth. This helps in ensuring that if there is any accidental contact with a live surface, the grounding will help direct the electrical current away from a worker's body, thereby significantly reducing the risk of electrical shock.

The other options, while they may pertain to electrical work in different contexts, do not serve the specific safety purpose of protective grounding. For instance, improving circuit performance, increasing equipment efficiency, and facilitating voltage regulation are goals related to power system management or design, rather than direct worker safety through the mitigation of shock hazards.