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Transformer as a raceway? #80760 05/15/02 03:28 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
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
Re: Transformer as a raceway? #80761 05/15/02 08:40 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
If there is no violation of voltage class' of insulation, or type of wiring (communications, fire alarm, etc), seems ok.


Ron
Re: Transformer as a raceway? #80762 05/16/02 07:20 AM
Joined: Mar 2001
Posts: 2,056
R
Redsy Offline
Member
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.

Re: Transformer as a raceway? #80763 05/16/02 08:47 AM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
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
Re: Transformer as a raceway? #80764 05/16/02 11:39 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
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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