Mike, don't you have to put some sort of 'marker' tape over the buried cable to warn future diggers? [ no offense, Aussies! ]
Here in OZ when cable is buried direct you have to install a thick protective strip. It's not a code requirement to install a marker tape for underground conduit but it's often done anyway. It's amazing how often you find it sitting on top of the conduit which makes the exercise pointless.
