Which statement is true about circuit breakers and electrical safety?

Which statement is true about circuit breakers and electrical safety?

• A. They require no periodic checks
• B. They regularly need exercise and inspection
• C. They only need to be replaced if damaged
• D. They are infallible once installed

Answer: (B)

Circuit breakers play a critical role in protecting electrical circuits from overloads and short circuits, and ensuring their reliable operation is essential for electrical safety. The statement regarding the necessity for regular exercise and inspection of circuit breakers is true, as it highlights the need for proactive maintenance to ensure functionality. Regular exercise of circuit breakers helps to verify that they operate correctly under load conditions, while inspection can reveal any signs of wear, corrosion, or other potential issues that could affect performance. This maintenance practice is crucial because circuit breakers can become less reliable over time due to mechanical wear or environmental factors such as dust and moisture, which can impede their operation. Periodic checks help ensure that circuit breakers function properly when needed, thereby reducing the risk of electrical faults leading to hazards such as electrical fires or equipment damage. This proactive approach is aligned with best practices in electrical safety and maintenance protocols outlined in NFPA 70E, reinforcing that regular upkeep is essential for ensuring safety in the workplace.

Circuit breakers play a critical role in protecting electrical circuits from overloads and short circuits, and ensuring their reliable operation is essential for electrical safety. The statement regarding the necessity for regular exercise and inspection of circuit breakers is true, as it highlights the need for proactive maintenance to ensure functionality.

Regular exercise of circuit breakers helps to verify that they operate correctly under load conditions, while inspection can reveal any signs of wear, corrosion, or other potential issues that could affect performance. This maintenance practice is crucial because circuit breakers can become less reliable over time due to mechanical wear or environmental factors such as dust and moisture, which can impede their operation.

Periodic checks help ensure that circuit breakers function properly when needed, thereby reducing the risk of electrical faults leading to hazards such as electrical fires or equipment damage. This proactive approach is aligned with best practices in electrical safety and maintenance protocols outlined in NFPA 70E, reinforcing that regular upkeep is essential for ensuring safety in the workplace.