HVAC Excellence Electrical Certification Practice Exam

Question: 1 / 400

What kind of maintenance should be done on electrical contacts?

Regular cleaning and inspection to prevent corrosion and ensure proper operation

Regular cleaning and inspection of electrical contacts is essential for maintaining their performance and longevity. Over time, electrical contacts can accumulate dirt, dust, and oxidation, which can lead to poor electrical connections, increased resistance, and eventual failure. By conducting regular cleaning, technicians can remove these contaminants, preventing corrosion and ensuring that the contacts function properly. Additionally, routine inspections allow for early detection of wear and tear, enabling proactive maintenance measures before any significant issues arise.

This approach not only enhances the reliability of electrical systems but also contributes to safety, as faulty contacts can result in electrical failures or hazardous conditions. Regular maintenance practices ensure that electrical contacts are operating effectively, thereby enhancing the overall efficiency of HVAC systems.

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Replacement every year regardless of condition

Only cleaning when a circuit failure occurs

Periodic lubrication to prevent wear

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