In figure "1" of the illustration, what are the trip characteristics associated with this type of circuit breaker? Illustration EL-0033
Official USCG Answer & Rule Citation
Correct Answer: Option D — inverse-time delay characteristic for sustained overloads
Inverse-time delay characteristics provide faster tripping as overload magnitude increases, protecting circuits from sustained thermal damage. IEEE 45 and 46 CFR Subchapter J govern these specific operational curves for marine overcurrent protection.
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