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. Can you identify the Code violation(s) in this photo?
Hint: Failed connection
Find the Answer
Our three winners this month were: Paul Blecharczyk, principal applications engineer, Invensys Process Systems, West Roxbury, Mass.; Dedrea Vaubel, electrical supervisor, Modern Building Systems, Aumsville, Ore.; and Eric Y. Huang, electrical engineer, LEED AP BD+C, Brothers & Sons Electric, Quincy, Mass. They all correctly identified violations with this battered box.
The cover is rusty and loose because it is not properly secured. Therefore, it does not meet the requirements of 314.28(C), which specifies covers must be suitable for the conditions of use and must be properly grounded per 250.110.
As noted in 314.72(E), “Boxes shall be closed by suitable covers securely fastened in place.” Wrapping electrical tape around the box does not meet the intent of this Code requirement.
Section 300.6(A)(3) requires ferrous metal equipment be protected from corrosion with an approved anti-corrosion compound; and where exposed in concrete or in direct contact with the earth, shall be made of material approved for that condition, or where provided with corrosion protection approved for the condition.
Lastly, all boxes and covers shall be durably and legibly marked with the manufacturer’s name or trademark [314.44].