When should capacitors not be energized or de-energized?

The correct answer highlights the importance of safety when handling capacitors, particularly regarding the use of a load break tool. Capacitors have the potential to store electrical energy even after being disconnected from a power source. This stored energy can be dangerous and can lead to electrical shocks, burns, or other accidents if the capacitor is energized or de-energized improperly.

Using a load break tool ensures that the capacitor can be safely discharged and isolated from the system without the risk of electrical arcing or other hazardous conditions. Load break tools are specifically designed to interrupt the electrical circuit safely, allowing technicians to manage the discharge of energy from the capacitor in a controlled manner.

In contrast, the other situations presented in the options may involve risks or precautions but do not specifically address the critical safety measure of using appropriate tools when dealing with energized capacitors. Maintaining safety protocols is essential to avoid accidents in all these contexts, but the unique dangers associated with capacitors make the use of a load break tool particularly vital.