Why did the circuit breaker fail to detect the short circuit/

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why did the circuIT breaker fail to detect the short circuit/ overloading? the owner hired an electrician to prepare and install the electrical wiring for his house. the electrician with the owner's consent, decided to use a larger size of wiring for the circuIT breaker to anticipate overload. after some time, the house was on fire. after the investigation, IT has proven that the cause of the fire was faulty wiring.

joshuajjbell@gmail.com · Accepted Answer

All that matters is that the wire can handle the ampacity of the circuit breaker. It doesn't matter one bit how much larger the wire is than it needs to be. For overcurrent protection, if the load is pulling more amps than the circuit

Why did the circuit breaker fail to detect the short circuit/ overloading?

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