National Electrical Code Articles and Information

Code Quiz: Article 300, Part 6

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 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..

1. When you install conductors in ferrous metal enclosures or raceways and those conductors carry ac current, how much you arrange them?
    

2. How do you accomplish this?
    

3. But if you're dealing with only one conductor, how do you reach the same goal?
    

4. If you're installing flexible metal conduit in spaces used for environmental air, what requirement must the connectors meet?
    

5. Why can't you weld a panel cover in place? After all, that would make it more secure and enhance protection from arc blast.

Answers to this quiz are here: Answers to this quiz

See how you did!