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 390

by Mark Lamendola

Quiz Questions

Code Quiz: Article 390

Based on the 2014 NEC

Questions and answers written by Mark Lamendola, who has worked as a master electrician, electrical inspector, and design engineer. Mark is an IEEE Senior Member, and the Code article author for Codebookcity.com. Since 1996, he has been writing National Electrical Code articles for electrical trade magazines and has an extensive portfolio of hundreds of NEC articles.

After a series of Articles on various raceways and wireways, the NEC brings us to a three-Article "miscellaneous" series (378, 380, 382). Next is a series of surface raceway Articles. Article 390 is the third and last in that series (384, 386, 390).

  1. Article 390 is a Chapter 3 article addressing a specific wiring method. Which wiring method does it address, and what are its defining characteristics?
     

  2. Name three permitted uses for this wiring method.
     

  3. Name the prohibited uses for this wiring method.
     

  4. What type hardware is permitted for supporting this wiring method?
     

  5. What restriction is there on using couplings and connectors with this wiring method?

Answers to this quiz are here: Answers to this quiz

See how you did!