What’s Wrong Here? Hint: Give Me a Break!
Hint: Give me a break!
This installer used the wrong fittings for this exterior installation. The set-screw conduit body is not designed to be used in wet locations. For wet locations, Sec. 314.15 requires boxes, conduit bodies, outlet box hoods, and other fittings to be listed for use in wet locations. Water can easily enter this raceway where it’s separated and flow right through the electrical metallic tubing (EMT) and LB and into the building. In damp or wet locations, conduit bodies, boxes, and fittings must be either installed or equipped to prevent the entrance or accumulation of moisture.
Where the EMT is separated from the riser, I’m concerned about the lack of grounding and bonding for this metal equipment. Section 250.4(A)(2) requires conductive materials such as EMT raceways and other metal enclosures to be connected to earth to limit the voltage to ground on this equipment. These conductive materials must also be effectively bonded in accordance with Sec. 250.4(A)(3). These separated metal parts need to be connected to each other in order to be effectively bonded and grounded.
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.