What’s Wrong Here? Hint: Get the Raceway Stretcher
Hint: Get the raceway stretcher
For general applications, Sec. 300.12 requires raceways, cable armor, and cable sheaths to be continuous between boxes, fittings, cabinets, and other enclosures. This electrical metallic tubing (EMT) raceway came up a little short. Exception No. 1 allows short sections of raceways to provide support or protection of cables without requiring the raceway to be mechanically continuous. Exception No. 2 allows raceway and cables entering the bottom of open bottom enclosures such as switchboards, motor control centers, and pad-mounted transformers without the cables or raceways being secured to the equipment. Neither of those exceptions apply here. Single insulated conductors as specified in Table 310.104(A) are only permitted when installed in wiring methods recognized in Chapter 3. The transition fitting and connector used to secure the cables are designed for use with NM cables. Using fittings or connectors with wiring methods other than for what they are designed and listed is a violation of Sec. 300.15 and Sec. 110.3(B).
About the Author
Russ LeBlancRuss 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.
