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#80760 - 05/15/02 03:28 PM Transformer as a raceway?  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Question from:

Theodore P. Von Sydow
US. Department of State

My question in a nutshell: Can a conductor pass through a transformer if it is not connected to the transformer?

Can the transformer be used as a raceway for a circuit or conductor that is not directly related to the function of the transformer?

Thank you


Joe Tedesco, NEC Consultant

2017 / 2014 NEC & Related Books and Study Guides

#80761 - 05/15/02 08:40 PM Re: Transformer as a raceway?  
Ron  Offline
Member
Joined: Mar 2002
Posts: 582
White Plains, NY
If there is no violation of voltage class' of insulation, or type of wiring (communications, fire alarm, etc), seems ok.


Ron

#80762 - 05/16/02 07:20 AM Re: Transformer as a raceway?  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
This is not a good practice.
If the transformer fails, you would have to remove the conductor and disrupt it's loads in order to replace the transformer.


#80763 - 05/16/02 08:47 AM Re: Transformer as a raceway?  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
I agree, no foreign wires are to be passed through the transformer. I expect that there will be many who wear the AHJ hat that will agree. It is also common knowledge that all conductors are not to be passed through an area that originates in the top section -- the label in the transformer enclosure will cleary identify this and other restrictions.


Joe Tedesco, NEC Consultant

#80764 - 05/16/02 11:39 PM Re: Transformer as a raceway?  
Ron  Offline
Member
Joined: Mar 2002
Posts: 582
White Plains, NY
I also agree, not a good practice. I think the original questions infers that the poster wants to know if it is a code violation. I don't find a violation.


Ron


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