480v 3-phase power conduit and Type AC 4-20 mA cable

[drktmplr12]

Can I route type AC signal cable for a loop-powered 12VDC level transmitter in the same conduit as 480V power for a pump?

Does armor qualify as it's own wiring method although it is in a conduit with a 3/C+G power cable?

Looking at post #12 but my pump cable is integral to the pump (think submersible)

Thanks

 

[steve66]

Unusual? Yes. Not a very good design? Yes.

But AC cable is a chapter 3 wiring method. I'm not sure the code really addresses what happens if one wiring method is installed inside another. I'd say it might be a local AHJ call.

But is AC cable even allowed to be installed inside a conduit? 320.10 specifically lists cable trays as a permitted use, but not conduit runs. If the conduit has a fitting wouldn't the bend radius be too tight? Also, AC cable can't be installed in wet or damp locations, so an underground conduit would be out of the question.

Can you put both the 480 & the signal cable in AC and just call the conduit a sleeve?