See answer below.
I’m not sure if this cable got yanked out of the connector after the installation, or if this was the way it was originally installed. In either case, there are a few Code violations we need to discuss.
Section 300.12 requires cable sheaths to be continuous between boxes, cabinets, fittings, enclosures or outlets. This cable sheath comes up a little short of the definition of “continuous.” Section 410.56(A) requires conductors for luminaires to be arranged in a way that will not cut or abrade the conductor insulation. Where passing through metal, Sec. 410.56(B) requires conductor insulation to be protected. The exposed conductors no longer comply with Sec. 310.10 since they are not inside the Chapter 3 wiring method of NM cable. Lastly, the NM cable connector is listed for use with NM cable, but not designed for use with individual conductors. Using the cable connector in this manner is a violation of 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.