DMX Lighting Control

Thank You for your response. If the NEC permits combining, I still need to be concerned about the magnetic field of the power cable interfering with the DMX signal

Standard requirement is to run the cables separately. But provided if you do not have an option as a last resort select concentric and shielded cables.

Not only is there a high probability that combining these runs will cause "anomalies" in your lighting control but this may become a warranty issue as in NO WARRANTY.

Best to check with the manufacturer rather than an internet forum on this.

You mention you have 1 conduit. Is this cable tray,or is it conduit?

If this is ladder type cable tray, what is the width and depth?

I have run many shielded cables on sensative sensor equipment for all connections from the main control cabinets to the sensors and in the same cable tray I have 120V, 480V 1Ph and Cat5E cables with 0 issues in regards to the sensor equipment or any other equipment issues.

These cables are seperated in the cable tray. That said, the shielded cable is a braided overall shield with drain connected at the controller cabinets only.

Depending on the width and depth of your cable tray, you might be able to run them as long as your DMX is a properly shielded cable. If you truly have closed metal or pvc conduit my answer wold have to be no. In that case, run a parallel conduit.

Happy Holidays

To continue with #5's question:

You mention you have 1 conduit. Is this cable tray,or is it conduit?

If this is ladder type cable tray, what is the width and depth?

If this is a tubular conduit, is it EMT, Galvanized, or Non-Metralic Tubing, and what is it's size?

I recommend an isolation transformer for the 120V to prevent a grounding-loop.

Hello, thank you for your response. The conduit installed is 3/4" PVC underground.

As long as your cables are shielded you'll be fine - I do this day in, day out in real world situations in controlling led arrays without incident.