What kind of electrical wire type and tubing do i need if i want to bury it?

I'm moving my a/c unit from one corner to other corner, so everything has to be buried underground, electrical and a/c tubing. I'm not doing the a/c freon part but only the electrical and just want to know what kind of wire type or gauge and if it needs to be inside some sort of pipes or tubes? thanks.

What kind of electrical wire type and tubing do i need if i want to bury it?
Even Though the answers you got were so so I Hate to tell you.


No ONE Can answer it.


I could tell you what you would need if you lived near me In CA.


But Every City has its own code on depth and wire.


So I would call the City and ask them what they want you to use.


Or better yet tell them, a guy came to your house and said he was gonna use outdoor wire and no pipe. The person will laugh and say no you can do that you need to do this and this and this.


Lets say u run wire under a sidewalk it does not have to be 18inch down but it must be in pipe. Every place has its own laws.


I have been in the field for 20yrs and The codes here in my city are harsh but if I drive 20miles away they are totaly different.


Wish I could have told you your answer but you didnt say where you lived or wat state and what your running the wire for IE. a Outlet/Sub Panel/ 220 line and so on.


Sorry And goodluck
Reply:I don't know where Kos got his Info, But Every state goes by the National Electrical code Some inspectors may not like it ran in UF type cable but it is legal, That fellow had a good idea, drop out of you existing disconnect with a piece of 3/4 in PVC 18" below grade then trench to your new location and stub a piece of 3/4 PVC up, you may or may not need a new disconnect, Code states that the disconnecting means has to be within sight (50 feet) is what they consider insight straight line of view, if you need a new one, just use the original disconnect for a J-box now that it will no longer be needed for a disconnect, If it's still within sight, after you stub up at the new location Use a 3/4 PVC Change over fitting, to be able to change it from PVC to a Liquid tight Carflex which will hook to your unit, As far as your wire sizes, 20amp 12/2 UF, 30amp 10/2 UF, 40amp 8/3 UF, Hope this sheds a lil Light
Reply:at least a 12 gage wire grounded....the gray PVC pipe( at least one inch in dia.) to put the wire through ...all found at home depot and Lowe's
Reply:I would use electrical pvc for the underground portion of the project, with conductors pulled through it. Your trench needs to be at least 18" deep. You did not say how big a unit or the voltage required, so I'm assuming number 10 stranded would sufficent size wire. When you come out of the ground you will have to change over to sealtight to go from your pvc stubup to the unit. Good luck
Reply:You should use 10/3 UF and dont bother with tubing. The UF wire is meant to be burried in ground and last for decades. Only use tubing if there is a chance that the wire might be cut by someone digging in the ground in that area.