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Canadian Electrical Code Flashcards

6 cards from real 309A practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Canadian Electrical Code flashcards as text

  1. What does CEC Rule 10-204 require regarding the connection of the grounding electrode conductor?

    Answer: It must be continuous without splice

    CEC Rule 10-204 requires that the grounding electrode conductor be installed as a continuous conductor without splice to maintain a reliable, low-impedance path to earth.

  2. According to the CEC, what is the minimum insulation resistance that must be measured before energizing a new installation?

    Answer: 1 MΩ

    The CEC requires a minimum insulation resistance of 1 MΩ measured between conductors and between each conductor and ground before a new electrical installation can be energized.

  3. Under the CEC, what is the demand factor applied to the first 5000 W of a residential electric range load?

    Answer: 100%

    CEC Table 62 applies a 100% demand factor to the first 5000 W of a residential electric range, meaning the full load must be included in the service calculation.

  4. What minimum conductor size does the CEC require for a feeder supplying a dwelling unit with a calculated load of 100 A?

    Answer: No. 3 AWG copper

    According to CEC ampacity tables, No. 3 AWG copper conductor with 90°C rated insulation, corrected for a 75°C termination, can carry 100 A for a dwelling unit feeder.

  5. According to the CEC, how many branch circuits are required as a minimum for a dwelling unit kitchen?

    Answer: 2 circuits

    CEC Rule 26-724 requires a minimum of two small appliance branch circuits to supply kitchen counter receptacles in a dwelling unit, ensuring adequate capacity for simultaneous appliance use.

  6. What does CEC Rule 12-100 require regarding the use of NMD90 cable?

    Answer: It is restricted to dry locations within buildings

    CEC Rule 12-100 restricts NMD90 (non-metallic dry) cable to dry locations within buildings, as it lacks the protection needed for wet, damp, or exposed installations.