When working on live circuits, what should a worker primarily be concerned about?

When working on live circuits, the primary concern should be ensuring personal safety. Electrical work inherently involves risks, especially when dealing with live circuits where the potential for electric shock, arc flash, and other hazards is significantly elevated. It's essential for workers to prioritize their safety by following proper protocols, wearing appropriate personal protective equipment (PPE), and ensuring that they have the necessary training and awareness of the risks involved.

Focusing on personal safety minimizes the risk of accidents and injuries, enabling the worker to effectively perform their job while safeguarding their well-being. Proper awareness and enforcement of safety measures can also prevent potential harm to others in the vicinity. While optimizing performance, minimizing noise, and reducing costs can be important aspects of electrical work, they should never take precedence over the fundamental need to keep oneself safe while working on potentially dangerous live circuits.