Which device can be used to ensure personal safety while working on live circuits?

Using personal protective equipment (PPE) is essential for ensuring safety when working on live circuits. PPE includes gear such as insulated gloves, safety glasses, hard hats, and flame-resistant clothing. These items are specifically designed to protect the worker from electrical hazards, including the risk of electric shock and arc flash, which can occur when dealing with live electrical circuits.

While devices like multimeters, insulation testers, and voltage testers are important tools for measuring electrical properties and checking for live voltages, they do not provide the direct physical protection that PPE offers. PPE acts as a barrier between the worker and the electrical hazard, ensuring a higher level of safety when working in potentially dangerous environments.