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RCDD · Question #79

RCDD Question #79: Real Exam Question with Answer & Explanation

The correct answer is C. Dedicated branch circuit. A dedicated branch circuit is defined by providing a single outlet its own individual phase, neutral, and ground conductor, isolating it from all other loads.

Question

"A single outlet utilizing a dedicated phase, neutral, and ground conductor" is the definition for which of the following?

Options

  • AFeeder circuit
  • BGround fault receptacle
  • CDedicated branch circuit
  • D"Daisy-chained" series of receptacles

Explanation

A dedicated branch circuit is defined by providing a single outlet its own individual phase, neutral, and ground conductor, isolating it from all other loads.

Common mistakes.

  • A. A feeder circuit carries power between a service entrance or main distribution panel and a sub-panel, serving multiple branch circuits rather than a single outlet.
  • B. A ground fault receptacle (GFCI) is a safety protection device that monitors current imbalance and interrupts power on a fault - it is not a circuit topology definition.
  • D. A daisy-chained series of receptacles connects multiple outlets on a single shared circuit, which is the opposite configuration of a dedicated single-outlet circuit.

Concept tested. Dedicated branch circuit definition and characteristics

Reference. https://www.nfpa.org/codes-and-standards/nfpa-70-standard-development/70

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