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What's Wrong Here?

Feb. 1, 2003
These two coupled raceways were located on a building's rooftop.

How well do you know the Code? Think you can spot violations the original installer either ignored or couldn't identify? Here's your chance to moonlight as an electrical inspector and second-guess someone else's work from the safety of your living room or office. Joe Tedesco, who has a knack for finding shoddy electrical work, did the dirty work and found this mess. Now it's your turn to identify the violation.

Find the Answer

The following individuals correctly identified the Code violation shown in the February photo: Geoff Stephenson, electrical designer, Stearns and Wheler, LLC; Michael K. Lenihan, project engineer, Summit Systems Co.

Both winners noted that an improper fitting had been used to make a transition from electrical metallic tubing (EMT) to liquidtight flexible metal conduit (LTFMC) on the rooftop of this building. The jacket of the LTFMC appears to have been slipped over the threads of the fitting. This installation violates the requirements of 300.15, which notes that fittings and connectors shall be used only with the specific wiring methods for which they're designed and listed.

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About the Author

Joe Tedesco

Tedesco served the industry in many roles during his career. He was a director, senior electrical code instructor for National Technology Transfer, Inc. and American Trainco, Inc.. He was also a codes, standards and seminar specialist for the International Association of Electrical Inspectors and an electrical field service specialist for the National Fire Protection Association in Quincy, Mass. He ran his own business as an NEC consultant and is a Massachusetts licensed master electrician and journeyman electrician and certified electrical inspector (one and two family 2A; General 2B, and Plan Review, 2C). Tedesco also wrote articles for CEE News and EC&M (Code Violations Illustrated and What's Wrong Here?) for more than 15 years and helped launched the Moving Violations video series.

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