Who is responsible for securing all supply switches before working on electrical equipment?

The person performing the repair is responsible for securing all supply switches before working on electrical equipment because they are directly engaged in the task at hand. This individual needs to ensure their own safety and the safety of others by confirming that there is no electrical power running to the equipment being serviced.

By securing the switches, the technician is taking proactive steps to prevent accidental electrocution or equipment damage. While supervisors, safety officers, or other team members may have roles in overseeing safety protocols and ensuring a safe work environment, the direct responsibility for securing the equipment lies with the person performing the work. This is critical to adhering to safety regulations and best practices in the workplace, as it emphasizes the necessity for those handling the equipment to be accountable for their immediate work environment.