Ecmweb 4541 147589 R1 047 22web3
Ecmweb 4541 147589 R1 047 22web3
Ecmweb 4541 147589 R1 047 22web3
Ecmweb 4541 147589 R1 047 22web3
Ecmweb 4541 147589 R1 047 22web3

What's Wrong Here?

Feb. 11, 2006
Hint: The case of the undressed current transformers.

Answer:

Keith Hall, President of K. K. Hall, Inc. in Clayton, Ind., recently performed a fire investigation at a structure adjacent to a boiler room. He submitted these comments.

“Although these photos were taken in the boiler room, this equipment had nothing to do with the cause of the fire. Notice the current transformers at the bottom of the 480V, 3-phase panel. This panel is fed at 400A from a load center located in another building at this same facility. The meter is not a utility meter, and I assume it was installed to track power usage by the boiler and its support equipment. I did not remove the panel cover so I can shed no light on the interior wiring arrangement.” The list of Code violations associated with this particular installation is too numerous to mention. Let’s just say, this is what you get when an unqualified person finishes the job.

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.

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.