Question 13054 of 749 · Maryland Journeyperson Electrician Exam

A raceway contains two 3-phase, 4-wire wye circuits, and the loads are mainly electronic (nonlinear), so the neutrals count as current-carrying. Equipment grounding conductors are also present. What adjustment factor applies?

Exactly one answer is correct.

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Correct answer to question 13054

  • B: 70 %

Explanation

Each circuit has three phase conductors plus a neutral that must be counted, giving 8 current-carrying conductors, and 7 to 9 conductors call for 70 %. Equipment grounding conductors are never counted.

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