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Electrician Red Seal · Question

When installing a sub-panel in a detached garage fed from the main house panel, which of the following statements is true for the sub-panel?

CEC Rule 10-208(b) requires a separate grounding electrode (e.g., ground rods) to be installed for the electrical system in a building or structure supplied by

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Question: When installing a sub-panel in a detached garage fed from the main house panel, which of the following statements is true for the sub-panel?

Answer options:

  • The neutral bus must be bonded to the panel enclosure. ✅ A separate grounding electrode must be installed.
  • The panel does not require its own main breaker.
  • The bonding conductor is not required if the feeder is in a metal conduit.

Correct answer: A separate grounding electrode must be installed.

Explanation: CEC Rule 10-208(b) requires a separate grounding electrode (e.g., ground rods) to be installed for the electrical system in a building or structure supplied by a feeder from another building, such as a detached garage.

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