Hint: That’s a wrap!
The installer of this outdoor receptacle box made a good effort to prevent corrosion from deteriorating the metal raceways. Using tape wrap or shrink wrap is a good option to protect metal raceways from corrosion. Bitumastic coatings, zinc-rich paints, and epoxy-based resins are also available as supplemental protection options for metal raceways. Using PVC-coated conduit is another viable option too.
The problems I see here are the types of covers used for these receptacles. Section 406.9(B)(1) requires outlet box hoods used in these applications to be identified as “extra duty” rated. While these “bubble covers” may be weatherproof with an attachment plug cap inserted into the receptacle, they are not “extra duty” rated covers. Extra duty type covers have sturdier hinges and are better able to withstand the rigors of frequent use without breaking. Any 15A and 20A, 125V and 250V receptacles installed here must be listed and identified as weather resistant type.
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.