Computer · Electrical Maintenance
An electrician observes that the insulation resistance of a motor winding has been gradually decreasing during routine checks. Which action best demonstrates the correct principles of preventive maintenance?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Continue running the motor at full load until it trips out permanently
- 2Wait until the insulation completely breaks down and causes a fault
- 3Schedule cleaning, drying, or rewinding of the motor before a complete failure occurs✓
- 4Replace the entire motor immediately without further testing
Correct answer
Schedule cleaning, drying, or rewinding of the motor before a complete failure occurs
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