Ecmweb Com Sites Ecmweb com Files Uploads 2014 01 Nec Violations Floating Box 1
Ecmweb Com Sites Ecmweb com Files Uploads 2014 01 Nec Violations Floating Box 1
Ecmweb Com Sites Ecmweb com Files Uploads 2014 01 Nec Violations Floating Box 1
Ecmweb Com Sites Ecmweb com Files Uploads 2014 01 Nec Violations Floating Box 1
Ecmweb Com Sites Ecmweb com Files Uploads 2014 01 Nec Violations Floating Box 1

Return of Code Clusters: Someone Needs to Find the Source of This Water Leak

Jan. 9, 2014
Code Clusters is a fond look back at some of the most interesting and outlandish Code violations published in the pages of EC&M magazine over the past 15 years - the item below is the third in a series of ten.

Code Clusters is a fond look back at some of the most interesting and outlandish Code violations published in the pages of EC&M magazine over the past 15 years — the item below is the third in a series of 10. Questions? Comments? We'd love to hear your feedback! Post your thoughts in the box below.

Someone Needs to Find the Source of This Water Leak

All references are based on the 2008 edition of the NEC.

A facility manager — who wishes to remain anonymous — recently sent us this photo. Unfortunately, he found this at his own facility! This situation was uncovered when he and another worker were removing 8 in. of snow from the roof. The box is located on top of what appears to be a mushroom fan. Water was trickling down through the metal-clad armor and finding its way to a junction box inside of the building. In addition, the blue insulated conductor was energized at 120V. Needless to say, he was not happy.

When this equipment was originally installed, the Code would have required this box to be suitable for use in wet locations, as required by 314.15. Additionally, 314.25 would require this box to have a cover. Another concern is that type AC cable is prohibited from being used is wet or damp locations, as noted in 320.12, and the opening at the top of the box should be closed with a KO seal, as called for by 110.12(A).

Abandonment of equipment is common in most all commercial and industrial occupancies at one time or another. During the course of preparing this piece, I was unable to locate any code or standard that would provide guidance for properly performing such an operation. However, in the absence of a published guideline, common sense must prevail.

Whenever you “safe-off” or abandon a piece of equipment or a circuit, your first step should be to make sure you de-energize the circuit. Next, remove all equipment, such as the box and the cable supplying the box. At least cover the box and physically disconnect the circuit conductors from the overcurrent protective device to help ensure the circuit is not unintentionally re-energized at a later date.

See next violation: Splice in a Bottle

About the Author

Brian J. McPartland

Voice your opinion!

To join the conversation, and become an exclusive member of EC&M, create an account today!

Sponsored Recommendations

Electrical Conduit Comparison Chart

CHAMPION FIBERGLASS electrical conduit is a lightweight, durable option that provides lasting savings when compared to other materials. Compare electrical conduit types including...

Fiberglass Electrical Conduit Chemical Resistance Chart

This information is provided solely as a guide since it is impossible to anticipate all individual site conditions. For specific applications which are not covered in this guide...

Considerations for Direct Burial Conduit

Installation type plays a key role in the type of conduit selected for electrical systems in industrial construction projects. Above ground, below ground, direct buried, encased...

How to Calculate Labor Costs

Most important to accurately estimating labor costs is knowing the approximate hours required for project completion. Learn how to calculate electrical labor cost.