What is the definition of preventative maintenance in the context of electrical safety?

• A. Proactively maintains equipment to prevent hazards
• B. Occurs only after equipment failure
• C. Is optional for safety
• D. Addresses faults after detection

Answer: (A)

Preventative maintenance in electrical safety means regularly scheduled care of equipment to keep it from becoming hazardous. This approach focuses on acting before problems arise, using routine inspections, cleaning, tightening of connections, checks of insulation resistance, and thermal imaging to spot issues early and prevent faults from turning into safety hazards. That’s why proactively maintaining equipment to prevent hazards is the best description.

The other ideas describe reactive approaches: fixing things only after a failure occurs, suggesting maintenance isn’t essential or mandatory, or addressing faults after they’ve been detected rather than preventing them in the first place.