What's Wrong Here?

What’s Wrong Here? Hint: Squeeze Play

March 9, 2022

Think you know how this installation violates the NEC?

Hint: Squeeze Play

cable squeezed between the wireway and its cover

Why use a cable connector when you can simply squeeze the cable between the wireway and its cover? That must have been what this installer was thinking. At least they decided to protect the NM cable by wrapping some tape around it before squeezing it in there.

Section 300.11(A) requires cable assemblies to be securely fastened in place, but I’m not sure how well this loosely installed cover will perform at securing this cable. Section 334.30 requires NM cables to be supported and secured by staples, cable ties, straps, hangers, or similar fittings designed and installed in a manner that does not damage the cable. I don’t think this cover squeeze method fits into any of those descriptions. Section 376.100(D) requires covers to be securely fastened to the wireway. I suppose we could debate whether this cover complies with that requirement.

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.