Electrical – What conduit should I install underground that meets code

I don't know why it might be disallowed by local codes. As mentioned in the comments to the question, this stuff is often put into poured walls and floors. It is used quite heavily for 240V wiring and phone/data wiring in Israel where almost all construction is concrete. We also used it for both 120V/240V and data in WaterShed here in the USA.

As another answer mentioned though, it's not good for outside use.

Here's a reference to a document published by Puget Sound Energy regarding minimum separation (both horizontal and vertical) for gas and electrical service, so you can cross them.

In general it looks like at least 6" vertical separation with conduit, or 12" if the electrical is direct-bury. I'd check local code.

http://pse.com/accountsandservices/Construction/Documents/3061.pdf

I had it in my head that pulling that cable through conduit didn't meet code, but I think I was wrong (with qualifications, maybe). The hardest thing about that cable inside conduit is going to be pulling the cable. You're pulling a lot of extra insulation and it won't go around corners easily, etc. I guess the 1" conduit will help with that a little.

But considering the cable you purchased, couldn't you skip the conduit and just bury the cable (with appropriate protection where it emerges from the ground)?