Ecmweb 17852 Nec Illustrated Catastrophes 0118 Pr

Illustrated Catastrophes: A Hidden Secret

Jan. 26, 2018
More Code catastrophes uncovered and corrected in these faulty installations

All references are based on the 2017 edition of the NEC.

A Hidden Secret

Brandon Killian, an electrician from Coconut Creek, Fla., shared this fantastic Code violation photo with us. He encountered this danger when he was called out to troubleshoot entranceway lighting that was not working outside a gated living community. While replacing a bad photocell, he noticed the new camera system was fed via a transformer that was plugged into a 2-wire extension zip cord tucked right into the 60A panel. He also noticed that the 240V/120V panel was only fed with 120V; however, the main lugs were jumped-out so all bus tabs were energized.

Cutting off the male end of the cord set and connecting it directly to a circuit breaker could be considered a violation of Sec. 400.12(1). Using flexible cord sets, or extension cords as they are commonly called, in place of fixed wiring is simply not permitted. Per Sec. 110.3(B), using an extension cord in this manner would also violate the instructions included in the listing or labeling of the product.

A closer look at the bottom left of the panel also reveals the PVC conduit installed for the camera wires is just shoved into the opening without the use of any conduit connectors. This would most likely be considered a violation of Sec. 352.48.

Troubles in Paradise

James Hickman, a master electrician and vice president for One Hour Electric, Inc., in Maryland Heights, Mo., shared this photo with us, which he took while visiting a restaurant on the island of Isla Mujeres in Mexico. He noted this was just one of the many violations he spotted while he was there. Although I’m not sure which electrical code is used in this jurisdiction, this installation certainly makes for a great conversation starter when it comes to discussing NEC violations.

To begin with, using electrical nonmetallic tubing (ENT) in this sun-filled outdoor location would violate Sec. 362.12(7), unless the ENT is specifically designed to be sunlight-resistant. Burying the ENT directly in the ground violates Sec. 362.12(4). The position of the ENT on the tree could also be considered a violation of Sec. 362.12(8) because it could easily get damaged.

The cover used for the receptacles is a violation of Sec. 406.9(B)(1), since it does not provide an enclosure that is weatherproof when an attachment plug cap is plugged into the receptacles. It’s barely weatherproof now because the cover is not designed to be mounted in this position. Installing a cover in a position other than what it is designed and listed for violates Sec. 110.3(B).

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.

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