Question 5020 of 749 · Maryland Journeyperson Electrician Exam
A service has 500 kcmil copper ungrounded conductors. What is the minimum copper GEC to a water pipe electrode?
Exactly one answer is correct.
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Correct answer to question 5020
- D: 1/0 AWG
Explanation
For copper service conductors over 350 kcmil through 600 kcmil, Table 250.66 requires at least a 1/0 copper GEC. A 500 kcmil service falls in that row.
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