What is indicated by a resistance reading that is outside the capabilities of a standard ohmmeter?

The resistance reading being outside the capabilities of a standard ohmmeter is indicative that the insulation is actually functioning well. A standard ohmmeter has specific limits within which it can measure resistance; if the resistance exceeds those limits, it suggests that the insulation is sufficiently effective, preventing electrical current from flowing. This would mean that the material is very resistive, which correlates to being in good condition.

In this context, when insulation is described as excellent, it means that it can handle higher voltages or currents without failure, thereby showing high resistance on the meter. Thus, the reading exceeding the meter's range highlights that the insulation can effectively withstand electrical stress, supporting the assessment of strong insulation quality. Other explanations about faulty measurements or equipment calibrations may highlight a problem, but in this case, such readings typically reflect well on the insulation's condition.