What’s Wrong Here? Hint: This Crushed My Dreams.
Hint: This crushed my dreams.
A close look at the liquidtight flexible nonmetallic conduit (LFNC) reveals it is twisted and partially crushed where it enters the receptacle box. I’m guessing this happened because the installer made the bend too sharp. Section 356.24 mandates that bends in LFNC be made so the conduit is not damaged, and the internal diameter of the conduit is not reduced. Sharp bends in raceways can make it difficult or impossible to install or remove wires. It may even result in wires being damaged during the installation process. Bends in LFNC must comply with the dimensions in Table 2, Chapter 9 from the “Other Bends” column. For ½-in. LFNC, the radius of the curve to the centerline of the bend must not be less than 4 in. This bend was made way too tight, resulting in the distortion of the conduit.
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.