National Electrical Code Articles and Information

Code Quiz: Article 250, Part 13

Based on the 2008 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. What should you do with loosely joined metallic raceways?
    

2. How big does an equipment bonding conductor need to be, if it's on the load side?
    

3. Does an equipment bonding conductor need to be inside or outside of an enclosure (or raceway)?
    

4. What's the rule about metal water piping?
    

5. Do you leave lightning protection systems separate from the system electrical ground, or connect the two?