Direct burial cable

[storeytime]

I'm having trouble finding this one in the NEC. Lighting for a helicopter pad is fed with 12/2 UF cable from an outdoor 3R box. The box is fed from the building with PVC underground. I have always assumed direct burial romex is not legal on a commercial sight, but this is on the grounds, not in the building. I have already told the company I would replace the UF with conduit and wire. That's the only way I would do this job, but does the code require that?

 

[iwire]

As long as the UF is deep enough it can be used.

That said, for underground I am also a pipe and wire guy.

 

[storeytime]

Thanks

Thanks

Thanks for the answer Bob. Sorry I haven't had time to reply sooner.
Tim

 

[623merlin]

I do not recall the code on that, but I too am a pipe and wire guy. I like being able to come back years later and pull out the bad wire and replace it without having to dig for it.