Hint: Protection from the elements
These set-screw-type EMT connectors are not suitable for use in this outdoor wet location. Section 314.15 requires boxes, conduit bodies, outlet box hoods, and fittings installed in wet locations to be listed for use in wet locations. This same Section also requires fittings to be placed or equipped to prevent moisture from accumulating in the box or conduit body. Water and moisture can easily enter this conduit body via the set-screw EMT connector. I am doubtful the raceway penetrating the exterior wall is sealed with duct seal, fiberglass, foam, or other sealants per Sec. 300.7(A) to prevent the circulation of warm air into a colder area. This type of air circulation can result in condensation forming inside the raceway which can cause damage to conductors and equipment. In addition, installing a clip or strap on this EMT would help in complying with the supporting and securing requirements in Sec. 358.30(A).
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.