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 supply conductors serving this equipment do not comply with the requirements set forth in 310.4. In addition, the grounded conductors are not properly identified in accordance with 200.6.
To prevent induction from heating the surrounding metal in enclosures or raceways [300.20(A)], you must group all phase conductors (and, where applicable, the grounded conductor) and equipment grounding conductors together.
