Question 2026 of 749 · Maryland Journeyperson Electrician Exam
What is the minimum size aluminum conductor permitted for an underground service lateral serving a general load?
Exactly one answer is correct.
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Correct answer to question 2026
- A: 6 AWG
Explanation
Underground service conductors must not be smaller than 8 AWG copper or 6 AWG aluminum or copper-clad aluminum. A smaller size is allowed only for limited loads such as a single branch circuit. See 230.31(B).
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