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Electrician Red Seal · Question

An electrician is running new conduit in a trench for an underground feeder to a detached garage. The trench is located in a private yard and will not be subject to vehicular traffic. What is the MINIMUM acceptable burial depth for PVC conduit containing 600 V conductors?

Table 53 of the CEC specifies a minimum burial depth of 300 mm (12 in.) for underground conductors or cables in PVC conduit not subjected to vehicular traffic.

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Question: An electrician is running new conduit in a trench for an underground feeder to a detached garage. The trench is located in a private yard and will not be subject to vehicular traffic. What is the MINIMUM acceptable burial depth for PVC conduit containing 600 V conductors?

Answer options: ✅ 300 mm (12 in.)

  • 450 mm (18 in.)
  • 600 mm (24 in.)
  • 750 mm (30 in.)

Correct answer: 300 mm (12 in.)

Explanation: Table 53 of the CEC specifies a minimum burial depth of 300 mm (12 in.) for underground conductors or cables in PVC conduit not subjected to vehicular traffic. This applies to voltages up to 600 V.

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