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National Electrical Code Articles and Information

NEC Quiz: Article 300, Part 2

by Mark Lamendola

Quiz Questions

Code Quiz: Article 300, Part 2

Based on the 2011 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 Since 1996, he has been writing National Electrical Code articles for electrical trade magazines and has an extensive portfolio of hundreds of NEC articles..

  1. The interiors of enclosures or raceways installed underground shall be considered as being what kind of location?

  2. If you run cables underground under a building, you must install them in what?

  3. Where do you find the minimum cover requirements for underground cable?

  4. What's the main caution regarding backfill?

  5. When arranging cable runs underground, you must account for something. What is it?

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