What test is performed to check insulation integrity?

The Insulation Resistance Test is specifically designed to measure the integrity of insulation in electrical systems. This test involves applying a known voltage to the insulation and measuring the resistance it offers. A high resistance value indicates that the insulation is intact and functioning properly, while a low resistance value may suggest the presence of moisture, physical damage, or degradation of the insulation material.

This test is crucial because it provides insight into potential issues that could lead to short circuits or equipment failures. By assessing insulation integrity, the Insulation Resistance Test helps ensure the safety and reliability of electrical systems and equipment.

The other options, while important in their respective contexts, do not specifically target insulation integrity. For instance, a Voltage Test checks the presence of voltage in a circuit but does not directly assess insulation performance. A Continuity Test verifies that there is a complete path for current flow but does not evaluate the condition of the insulation material itself. The Load Test examines how a system performs under operational conditions but also does not focus on insulation integrity.