SWA lifespan buried?

[bureaucrazy]

How long does 6mm SWA last before the sheath degrades if buried direct?
What would be the best ducting to run up a garden to a shed if ducting is needed?

 

[Deleted member 26818]

The sheath of SWA is PVC.
Life expectancy underground is from 20 to 50 years, depending on how much use is made of the cable.

 

[DPG]

Buried direct it will probably last until someone puts a spade through it.

 

[Strima]

Considerably longer than your average garden shed.

 

[ruston]

And if it is buried direct at least make sure there are no sharps and lay it on sand, don't forget the warning tape.
Jewsons do the proper ducting for pennies compared to digging it back up to replace or repair.