Each direct-buried single conductor cable must be located _____ in the trench to the other single conductor cables in the same parallel set of conductors, including equipment grounding conductors. a) perpendicular b) bundled together c) in close proximity d) spaced apart See answer and applicable Code reference The correct answer is: c) in close proximity Section 300.5 of the 2011 NEC covers the wiring methods for underground installations. As noted in 300.5(I), "All conductors of ...

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