Question 7063 of 749 · Maryland Journeyperson Electrician Exam
Two 480 volt switchboards with exposed live parts face each other across an aisle (Condition 3). What is the minimum working space depth?
Exactly one answer is correct.
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Correct answer to question 7063
- C: 4 ft
Explanation
Exposed live parts on both sides of the working space is Condition 3. For 151 to 600 volts to ground, Table 110.26(A)(1) requires a depth of 4 ft.
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