A small branch circuit trips during startup, and a subcontractor proposes installing a larger breaker without checking the conductors or equipment. What should the superintendent understand?
Correct Answer
A) Overcurrent protection must be coordinated with conductor ampacity and equipment ratings so wiring is protected from overheating
Overcurrent devices protect conductors and equipment from overheating and fault damage. A nuisance trip is not corrected by simply upsizing a breaker; the circuit, conductor ampacity, connected equipment, and design requirements must be coordinated.
Why This Is the Correct Answer
Overcurrent devices protect conductors and equipment from overheating and fault damage. A nuisance trip is not corrected by simply upsizing a breaker; the circuit, conductor ampacity, connected equipment, and design requirements must be coordinated.
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