Mixing low and line voltages

[cleveland]

We have an empty 4" conduit running below grade to a location where a pole mounted security camera is desired. The camera needs 120 volt for a heater plus the usual coax or Cat6 cable for the video signal. Could we use MC cable pulled in with the co-ax and be okay? I guess we'd run the MC up inside the pole too to the camera. Is there another wiring method better suited for this type of installation?

Thanks for your time.............

 

[cadpoint]

The early parts of Article 300's, 300.3(C) is you inhibitor, which has an Exception and a FPN, if it is a class wiring method. So I guess there?s more considerations, with trying to use both together...

Since you said underground, why MC, why use that? All I could think of was a Wire Harness Manufacturer, or some sort of cable assembly. If you were to use two different conduits, this might also change the requirement placed on the individual circuits.

I frankly skimmed up to through 310.8 which should also be of interest (MO).

I'd get on the phone and talk with a wire rep. and let them meet your needs.
Maybe someone has one shot answer, but I don't think this is the case.

Good Luck...

 

[cleveland]

The early parts of Article 300's, 300.3(C) is you inhibitor, which has an Exception and a FPN, if it is a class wiring method. So I guess there?s more considerations, with trying to use both together...

Since you said underground, why MC, why use that? All I could think of was a Wire Harness Manufacturer, or some sort of cable assembly. If you were to use two different conduits, this might also change the requirement placed on the individual circuits.

I frankly skimmed up to through 310.8 which should also be of interest (MO).

I went to MC because in Uses Permitted it can be installed in a raceway 330.10 (7) and it can be used in a wet location with appropriate covering 330.10(11.a). I'm trying to get everything in that 4" conduit running below grade. Thanks.

 

[cleveland]

The early parts of Article 300's, 300.3(C) is you inhibitor, which has an Exception and a FPN, if it is a class wiring method. So I guess there?s more considerations, with trying to use both together...

Hmmmmm........ maybe I'm making this a bigger deal than it is. If I pulled in 600 volt UF cable for the wet rating to serve the 120 volt heater along with a wet rated co-ax cable rated 300 volts we'd meet 300.3(C) ............