What safety procedure should be prioritized before conducting maintenance on an EV charging system?

Prioritizing the disconnection of the power supply before conducting maintenance on an electric vehicle charging system is essential for ensuring safety. When working on or near electrical systems, it is crucial to eliminate the risk of electric shock or shorts that could lead to significant injuries or equipment damage. Disconnecting the power supply ensures that there is no live electrical current flowing through the system, effectively creating a safe working environment.

By securing the power supply, technicians can proceed with maintenance tasks without the fear of encountering unexpected electrical hazards. This practice aligns with standard safety protocols across various fields involving electrical work, emphasizing the need for precautionary measures to protect personnel and equipment.

Other actions, such as removing vehicle batteries, charging the batteries, or testing the electrical system, could introduce risks if the power supply has not been disconnected first. Therefore, ensuring that the power supply is off is a critical first step in any maintenance procedure on an EV charging system.