What is required for circuit breakers that have approached their interrupting rating according to NFPA 70E 225.3?

In the context of NFPA 70E 225.3, circuit breakers that have approached their interrupting rating are indeed required to undergo an inspection and testing process. This requirement is crucial because circuit breakers serve as essential components in ensuring electrical safety by interrupting the flow of electricity during overloads or fault conditions. Over time and with repeated use, circuit breakers can wear down, potentially leading to compromised performance.

Inspection and testing enable the identification of any wear or damage that could affect the breaker’s ability to function correctly under fault conditions. This proactive approach helps in maintaining safety in the workplace by ensuring that the electrical system continues to operate reliably without posing risks to personnel or equipment.

While immediate replacement may seem like a logical step if an interrupting rating is threatened, it is not always necessary or practical without first assessing the condition through inspection. Documented review and isolation from the electrical system have their own requirements and contexts within NFPA 70E but do not specifically address the immediate need for safety assessment as outlined in the discussed provision.