What role does an insulation tester play in electrical safety?

An insulation tester plays a critical role in electrical safety by ensuring proper insulation levels to avoid hazards. This is essential because insulation is what prevents unintended electrical contact, which can lead to short circuits, electrical shocks, or even fires. By regularly testing the insulation of electrical wiring and equipment, the insulation tester helps identify weaknesses or deterioration in the insulating materials. This early detection allows for timely maintenance or replacement, ultimately enhancing the safety of electrical systems and preventing potential hazards.

The other choices do not directly relate to the primary function of an insulation tester. While enhancing performance or aiding in power management are valuable aspects of electrical systems, they do not specifically address the purpose of ensuring safe insulation. Similarly, while preventing equipment overheating can contribute to safety, it is not the main function of an insulation tester.