Just recently installed an air cooled generator and had it inspected. The 3/4" conduit from the residence to the generator goes underground. I used schedule 80 conduit at each end where it comes out of the ground. The Inspector said I needed to protect the conduit riser at the generator end from lawnmower/trimmer damage. I thought that installing schedule 80 conduit was the protection. I plan on calling the Inspector to talk about it but just wanted other's opinions. If you had to protect the conduit, what would you do? I thought about sliding a section of 1 1/2" conduit over the existing conduit and let it stick out above ground about 8 inches. Thanks to all who reply.