Red Seal Construction Electrician

Category - Construction Electrician

What is the minimum size of aluminum conductor for an overhead 3-wire single dwelling consumer service if the calculated load is 30200 W with a termination temperature of 90 degrees C?
  1. #3 AWG
  2. #2 AWG
  3. 1/0 AWG
  4. 2/0 AWG
Explanation
Answer: C. Explanation: The required ampacity of the 3-wire 240 V service is 125.8 A. Refer to CEC 2021 Table 4 for allowable ampacities of aluminum conductors.
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