What type of test is typically carried out for insulation resistance?

In the context of testing insulation resistance, a field test is typically conducted to assess the integrity and performance of electrical insulation in equipment or systems installed in their operational environment. This type of test is crucial as it can identify potential insulation failures that could lead to unreliable performance or safety hazards.

By performing the field test, technicians measure the resistance of insulation to ensure it meets specified standards, allowing for the detection of moisture ingress, contamination, or deterioration over time. The information gathered from these tests helps in making informed maintenance decisions and ensuring the ongoing reliability of electrical systems.

While other types of tests might also involve insulation resistance under different circumstances, they are not usually performed in the immediate operational environment where the equipment is utilized.