Ecmweb 3011 511ecwbcqapic 350 Px
Ecmweb 3011 511ecwbcqapic 350 Px
Ecmweb 3011 511ecwbcqapic 350 Px
Ecmweb 3011 511ecwbcqapic 350 Px
Ecmweb 3011 511ecwbcqapic 350 Px

Code Q&A

Nov. 18, 2005
Electricians in our area ground the metal conduit that runs up a utility pole to a local ground rod. Is this a Code compliant installation?

Q. Electricians in our area ground the metal conduit that runs up a utility pole to a local ground rod. Is this a Code compliant installation?

A. The NEC requires all metal raceways that contain service conductors to be grounded [250.80]. However, grounding a metal raceway to a ground rod serves no purpose in removing or reducing dangerous voltage on metal parts from a ground fault.

What is required is that all metal raceways and enclosures containing service conductors be bonded to an effective ground-fault current path in accordance with 250.4(A)(5). This can be accomplished by the installation of an equipment bonding jumper, of any length, from the top of the metal pipe to the utility secondary neutral terminal in accordance with 250.102(E).

About the Author

Mike Holt

Mike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest electrical publishers in the United States. He earned a master's degree in the Business Administration Program (MBA) from the University of Miami. He earned his reputation as a National Electrical Code (NEC) expert by working his way up through the electrical trade. Formally a construction editor for two different trade publications, Mike started his career as an apprentice electrician and eventually became a master electrician, an electrical inspector, a contractor, and an educator. Mike has taught more than 1,000 classes on 30 different electrical-related subjects — ranging from alarm installations to exam preparation and voltage drop calculations. He continues to produce seminars, videos, books, and online training for the trade as well as contribute monthly Code content to EC&M magazine.

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...

Fiberglass Electrical Conduit Chemical Resistance Chart

This information is provided solely as a guide since it is impossible to anticipate all individual site conditions. For specific applications which are not covered in this guide...

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.