Depth for buried DC cables

[Beelbeebub]

Does anyone have a reference for the depth that DC cable needs to be buried - I assume the same as armoured AC (0.5m in general) but wanted to double check.

 

I was going to use the specific armoured stuff 

[JohnMo]

If you don't really need to bury l wouldn't - would surface run, then you can see them.

[Beelbeebub]

3 hours ago, JohnMo said:

If you don't really need to bury l wouldn't - would surface run, then you can see them.

For at least some of the run they will go across an agricultural field (sheep) that is occasionally flail mown and then also across a lawn which is regularly mown and trafficked.  Also across a tarmac drive.  It's (hopefully) a single ground mounted array that serves several houses.

 

The other alternative is overhead poles but that has issues too. 

[JohnMo]

You need to bury below deep plow depth. Although sheep today, you have no idea what will occur in year. So that is 910mm to 1000mm