Which NEC articles govern dwelling unit branch circuits and overcurrent protection?

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Prepare for the ICC Residential Electrical Inspector Level 1 exam with multiple choice questions, flashcards, and detailed explanations. Master your understanding of the residential electrical code to ensure success.

Multiple Choice

Which NEC articles govern dwelling unit branch circuits and overcurrent protection?

Explanation:
Branch circuits in a dwelling are governed by Article 210, which sets the requirements for the circuits that feed receptacles and lighting in homes. Overcurrent protection—fuses and circuit breakers that guard conductors from overload and short circuits—lives in Article 240. The other articles listed cover different parts of the electrical system: services and service equipment, general conductors and their ampacity, wiring methods, flexible cords, luminaires, and emergency systems. Because of that, the correct pairing for dwelling-unit branch circuits and their protection is Article 210 for branch circuits and Article 240 for overcurrent protection.

Branch circuits in a dwelling are governed by Article 210, which sets the requirements for the circuits that feed receptacles and lighting in homes. Overcurrent protection—fuses and circuit breakers that guard conductors from overload and short circuits—lives in Article 240. The other articles listed cover different parts of the electrical system: services and service equipment, general conductors and their ampacity, wiring methods, flexible cords, luminaires, and emergency systems. Because of that, the correct pairing for dwelling-unit branch circuits and their protection is Article 210 for branch circuits and Article 240 for overcurrent protection.

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