National Electrical Code articles and explanations - FREE

Home | Search | About us  

NEC Articles | Quizzes | Questions Answered, $115/hour                Bookmark and Share

nec training

National Electrical Code Articles and Information

NEC Quiz: Article 410, Part 9 Answers

by Mark Lamendola

Back to Quiz

  1. The minimum size is 3/8 inch, or size 12 metric, pipe size [410.62(A)].
  2. No, but only if the exposed cord is suitable for hard-usage or extra hard-usage and that cord is not longer than what's needed for the maximum adjustment [410.62(B)].
  3. Yes, or you could use a busway plug [410.62(C)].

  4. Not normally. But there are three circumstances in which you can [410.64(A), (B), and (C)]. For example, luminaires identified for through-wiring.
  5. The rating has to be at least 90 DegrC, unless supplying a luminaire marked as suitable for a different insulation temperature [410.68].