Ecmweb 7817 Nec Whats Wrong Here Oct 2015 Pr

What's Wrong Here? Hint: Botched box installation

Oct. 16, 2015
Can you identify the Code violation(s) in this photo?

How well do you know the Code? Think you can spot violations the original installer either ignored or couldn't identify? Here's your chance to moonlight as an electrical inspector and second-guess someone else's work from the safety of your living room or office. It's your turn to identify the violation.

Hint: Botched box installation

August Winners

Our three winners this month were: Dave Blasing, a self-employed master electrician at Blasing Electric in Janesville, Minn.; Jimmy Fleming, president of Jimmy Fleming Electric, LLC, Chatham, N.J.; and Robert Germain, owner of Robco Electric in Phoenix. Each one of them knew there were several problems with this outdoor installation, including the way in which the PVC pipe has pulled away from the panelboard enclosure.

Section 352.20 requires PVC to be installed and fastened in a manner that allows movement from thermal expansion and contraction. When that movement causes the pipe to separate from an enclosure, something was not done correctly during the installation. Perhaps an expansion fitting or a flexible fitting could have been used to accommodate this movement.

The missing cover for the panelboard enclosure on the right is a violation of Sec. 312.2. This “weatherproof” enclosure is not very weatherproof with its cover missing. The circuit breakers are now directly exposed to rain, snow, and other damaging environmental conditions. Section 240.32 also requires this circuit breaker enclosure to comply with Sec. 312.2 when installed in a damp or wet location.

Another problem I would like to point out is the lack of a circuit directory or circuit identification for the breakers in the panelboard, as required by Sec. 408.4(A).

About the Author

Russ LeBlanc | Owner

Russ started in the electrical trade as an apprentice in 1985. He worked his way up to become a Journeyman Electrician and then eventually became a Master Electrician and Licensed Construction Supervisor. In 1999 Russ become an Electrical Instructor for The Peterson School of Engineering in Massachusetts where he developed his passion for teaching, and quickly became Department Head of Electrical Instruction. Russ has taught thousands of apprentices, electricians, engineers, inspectors, and other electrical professionals during his career as an instructor. He continues to provide electrical professionals with Electrical Code seminars, Arc-Flash Awareness training seminars and educational material through his LeBlanc Consulting Services in North Reading, MA whose specialty is educating electricians. He has been an active member of the NFPA Electrical Section and has authored hundreds of National Electrical Code proposals and comments which have become Code rules to improve the safety for the electrical industry. Russ is also an IAEI certified Electrical Inspector.

Please visit www.russleblanc.net for more information.

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...

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.

8 Types of Electrical Conduit and Their Uses

Electrical conduit is a tube or raceway used to house and protect electrical wires within a building or structure. From data centers to underground subways to ports and bridges...