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National Electrical Code Articles and Information

NEC Quiz: Article 250, Part Four Answers

by Mark Lamendola

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  1. [250.24(A)]. The grounded service conductor.
     

  2. [250.24(A)(1)]. Yes.
     

  3.  [250.24(A)(5)]. No, except as permitted in Article 250. Refer to the Article 100 definitions of grounding, bonding, and grounded conductor.
     

  4. [250.24(B)]. The equipment grounding conductor(s) and the service disconnect enclosure.
     

  5. [250.24(B)] Exception No. 1 and Exception No. 2. Where more than one service disconnect is in an assembly listed for use as service equipment; or where you are working with an impedance grounded neutral system.