Electric wires through AC Ducts

[wsiegel]

1. Is there a code against this?

[gbeaumont]

Originally Posted by wsiegel

1. Is there a code against this?

Hi Bill, yes there is.

There used to be an exception for return air chases between joists but I believe that has now gone as well.

[Correction] Bill here's the code (200:

NEC 300.22

Type NM cable shall not be installed in spaces specifically fabricated for

environmental air, but may pass perpendicular through joist or stud spaces used as such.

Regards

Gerry

[Wayne B. Wilson]

Bill
I write it up just because it not a good idea to have wires running in duct work do to fires and melting wire , another problem is the drastic changes of temperature will effect the insulation of the wires, Seeing we are not code keeper but observers I would write up needs review of qualified license contractor CYA. It also depends on local codes

[wsiegel]

Thanks Gerry.

[Wayne B. Wilson]

I forgot to mention the vibration wearing through the insulation

[Speedy Petey]

I see conduit, not NM cable. If it is an actual conduit run there is no issue.

The fire issue is moot because fires happen everywhere, not just in ducts.

[Wayne B. Wilson]

Originally Posted by Speedy Petey

I see conduit, not NM cable. If it is an actual conduit run there is no issue.

The fire issue is moot because fires happen everywhere, not just in ducts.

I would almost bet that conduit is not run through

[Speedy Petey]

Originally Posted by wwilson3

I would almost bet that conduit is not run through

Could be. That is why I wrote "If it is...".

[gbeaumont]

Originally Posted by Speedy Petey

I see conduit, not NM cable. If it is an actual conduit run there is no issue.

The fire issue is moot because fires happen everywhere, not just in ducts.

Good catch Pete, I missed that

Regards

Gerry

[Wayne B. Wilson]

To tell the truth i did too but i had a quick recover lol
I just feel it is not a good practice