splices in violation of nec

What’s Wrong Here? Hint: Flying Splices

May 25, 2023
Think you know how this installation violates the NEC?

Hint: Flying splices

Splicing MC cable in this manner is a violation of Sec. 300.15. Flying splices won’t cut it here! Those splices must be installed in a box or conduit body as specified in Sec. 300.15. Securing the MC cable to the exterior of the PVC conduit is a violation of Sec. 300.11 as well as Sec. 352.12(B). The lack of electrical continuity and mechanical connection of the MC cable jacket violates the requirements in Sec. 300.10. This lack of electrical continuity may also not provide an effective ground-fault current path as specified in Sections 250.4(A)(3), and (A)(5). The cover missing from the PVC conduit body is a violation of Sec. 314.25.

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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