Code Quiz: Wiring Methods

July 18, 2013
NEC guidelines on wiring methods

When terminating a specific wiring method of Chapter 3, when would an installer trim the conduit away from the conductors?

A. Never

B. When installing high density polyethylene (HDPE) conduit

C. When installing nonmetallic underground conduit with conductors (NUCC)

D. When installing reinforced thermosetting resin conduit (RTRC)

Answer: C

According to Sec. 354.28 of the 2011 NEC, when terminating nonmetallic underground conduit with conductors, the conduit shall be trimmed away from the conductors or cables at the termination using an approved method that will not damage the conductor  or cable insulation, or jacket. The conduit ends shall be trimmed inside and out to remove rough edges.

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].

About the Author

Steven Owen

Voice your opinion!

To join the conversation, and become an exclusive member of EC&M, create an account today!

Sponsored Recommendations

Electrical Conduit Comparison Chart

CHAMPION FIBERGLASS electrical conduit is a lightweight, durable option that provides lasting savings when compared to other materials. Compare electrical conduit types including...

Don't Let Burn-Through Threaten Another Data Center or Utility Project

Get the No Burn-Through Elbow eGuide to learn many reasons why Champion Fiberglass elbows will enhance your data center and utility projects today.

Considerations for Direct Burial Conduit

Installation type plays a key role in the type of conduit selected for electrical systems in industrial construction projects. Above ground, below ground, direct buried, encased...

How to Calculate Labor Costs

Most important to accurately estimating labor costs is knowing the approximate hours required for project completion. Learn how to calculate electrical labor cost.