What defines the safety aspect of using insulated tools?

The key safety aspect of using insulated tools is to avoid electrical shock. Insulated tools are specifically designed with materials that can withstand high voltage, providing a protective barrier between the user and the electric current. This insulation helps to ensure that, in the event of accidental contact with live electrical components, the user remains safe from harm. Properly insulated tools reduce the risk of electrical accidents significantly, making them an essential part of any lineman's toolkit when working on or near energized lines or equipment. This focus on safety is critical, as electrical shock can lead to severe injuries or even fatalities.